Sheet Metal Worker
Only contractors get licensed in this trade — not the people doing the work. If you're on someone else's payroll, you almost certainly need nothing at all, anywhere in the country. The licensing question only arrives when you start contracting directly with customers. Six states carry sheet metal as a named classification of its own, and the burden between them is not close: Iowa wants six years of experience and two exams, while Nebraska asks for no fee, no exam, and no experience.
Where can I take my sheet metal worker license?
Pick the state you're licensed in. You'll get the states that will consider that license — which is not the same as a free transfer.
FAQ
Do I need a license to work as a sheet metal worker?
Not as an employee — no state licenses individual sheet metal workers. That changes the moment you contract directly with a customer, and then it depends where you are. Rhode Island and Connecticut both name sheet metal in their board titles and issue real credentials for it. Massachusetts has a dedicated Board of Sheet Metal Workers. Nevada, California, and Hawaii carry it as a numbered classification. Everywhere else it folds into HVAC or mechanical licensing — which means the reciprocity that applies is your state's HVAC reciprocity, not something sheet-metal-specific. Nevada is the priciest at roughly $1,040 in fees.
Sheet Metal Worker rules in every state
Researched 2026-07-21 to 2026-07-24One entry per state, in alphabetical order. Each one covers who licenses the trade there, what it takes to qualify, and whether that state accepts a license earned somewhere else.
- Reciprocity — accepts some out-of-state licenses
- No reciprocity — licensed here, but no out-of-state license is accepted
- Nothing to reciprocate — no state license exists here
- Not established — we could not verify this state's position — treat it as an open question, not a no
- secondarydrawn from consistent secondary sources, not confirmed on the agency's own page
Alabama
State licenseSame HACR structure documented in the al HVAC entry: certification required for HVAC/refrigeration installation, service, or repair with no dollar threshold; $20,000 performance bond (also required of reciprocity applicants).
Alabama licenses sheet metal work under HVAC/refrigeration contractor certification, carrying that credential's confirmed reciprocity with South Carolina (5 years held), Tennessee (3 years), Mississippi (1 year), Louisiana and West Virginia (no waiting period).
What's actually required: Confirmed directly from HACR's own official reciprocity page (documented in the al HVAC entry), with state-specific minimum license-history requirements, and bidirectionally cross-confirmed against South Carolina'S own signed agreement.
- https://hacr.alabama.gov/new-license-application/ (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Alaska
State licenseSame DCCED Specialty Contractor structure documented in the AK roofer entry: $10,000 surety bond, general liability insurance, workers' comp if employees, $300 total fee; PSI exam for some specialties.
Alaska has no sheet metal reciprocity - its construction contractor licenses explicitly have no reciprocity with any state. Alaska's separate electrician/plumber journeyman reciprocity is a different program entirely.
Why, and what applies instead: The AK roofer entry confirms directly: 'Alaska doesn'T have reciprocity agreements with any other states for the construction contractor licenses.' Alaska's DOL Certificate of Fitness program (electrician/plumber individual credentials) has a 13-state list, but that is a separate program and does not extend to DCCED contractor licenses.
- https://adaptdigitalsolutions.com/articles/alaska-contractor-license-requirements/ (secondary, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Arizona
State licenseSame ROC structure documented in the az HVAC entry: 4 years qualifying experience, trade exam, Statutes & Rules Exam (SRE), bonding and insurance.
Arizona has no formal sheet metal reciprocity with any state - consistent with every Arizona trade. A case-by-case Out-of-State Waiver Request is the only alternative, and Arizona's Statutes & Rules exam is never waived.
Why, and what applies instead: This dataset confirms from the Registrar's own page that Arizona has no formal bilateral reciprocity with any state for any trade. A case-by-case Out-of-State Waiver Request is the only alternative, and the SRE is never waived.
- https://roc.az.gov/applying-for-a-license (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Arkansas
State licenseSame ACLB structure documented in the ar HVAC entry. Arkansas' own reciprocal application form confirms a general reciprocity process exists for 'Plumbing, Electrical, HVACR or other classifications.'
Arkansas licenses sheet metal under HVACR classification, with reciprocity cross-confirmed from Alabama's and Louisiana'S own boards. Arkansas' 17-state electrical reciprocity is a different board'S program and doesn't apply here.
What's actually required: Cross-confirmed from other states' own boards rather than from Arkansas' own materials. Arkansas' extensive 17-state electrical reciprocity is administered by the Board of Electrical Examiners and does not extend to HVACR or sheet metal.
- https://www.labor.arkansas.gov/wp-content/uploads/Reciprocal-Form-March-2025.pdf (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
California
State licenseStandard CSLB requirements: 4 years journeyman-level experience within the last 10 years, trade exam plus law & business exam, $25,000 contractor bond. Required for contracting work of $1,000 or more (labor + materials). Confirmed by the Institute for Justice survey as an exam-required state for commercial sheet metal contracting.
California licenses sheet metal as a C-43 CSLB classification. CSLB's reciprocity with Arizona, Louisiana, Mississippi, Nevada, and North Carolina may apply, but CSLB'S reciprocal lists differ by classification - verify C-43 specifically rather than assuming.
What's actually required: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. CSLB's standard reciprocity program (documented across these states for California) applies subject to the specific classification appearing on the Reciprocal Classifications List for that state pair - and the CA roofer entry demonstrates that CSLB'S lists genuinely differ by classification, so c-43 coverage should be verified rather than assumed.
Note: Confirm whether C-43 appears on CSLB's Reciprocal Classifications List for each partner state.
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
- https://www.cslb.ca.gov/Contractors/Applicants/Reciprocity/Reciprocity_Requirements.aspx (official, accessed 2026-07-24)
Colorado
No state license — local/city licensing onlyThere is no state license for this trade — licensing, where it exists, happens at the city or county level.
Varies by municipality (Denver Mechanical Certificates, Colorado Springs/Pikes Peak, Aurora, Boulder). Work involving electrical connections needs a DORA electrician license; gas piping may need a DORA plumbing license.
Colorado has no statewide sheet metal or HVAC license - it's regulated entirely locally, and Denver explicitly does not reciprocate with any other jurisdiction. Check the specific city or county.
What applies instead: No state license exists, so no state reciprocity framework applies. Denver explicitly does not reciprocate with any other jurisdiction (documented 's CO records).
- https://adaptdigitalsolutions.com/articles/colorado-contractor-license-requirements/ (secondary, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Connecticut
State licenseS or D contractor license classifications for HVAC/sheet metal work, requiring a trade exam and documented experience. Connecticut requires an exam for the commercial sheet metal contractor credential (confirmed in the Institute for Justice licensing survey).
Connecticut formally recognizes sheet metal through its Heating, Piping, Cooling and Sheet Metal Examining Board. Connecticut has no reciprocal agreements with any jurisdiction - its own licensing department says so explicitly.
Why, and what applies instead: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. Connecticut's own DCP page states verbatim (documented in the CT electrician entry): 'Connecticut does not have reciprocal agreements with any other jurisdiction,' and a further source confirms DCP 'Generally does not offer reciprocity for state-licensed building trades.'
- https://portal.ct.gov/DCP/License-Services-Division/All-License-Applications/Electrical-License (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
- https://www.bellafsm.com/hvac-license-requirements/ (secondary, accessed 2026-07-24)
Delaware
State licenseHVACR contractor license requiring a trade exam and documented experience, per the board's structure. Confirmed by the Institute for Justice survey as an exam-required state for commercial sheet metal contracting.
Delaware licenses sheet metal work through its Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners board. Delaware generally handles reciprocity as case-by-case 'substantially similar' review rather than fixed state lists.
What applies instead: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. This dataset documents Delaware's electrical reciprocity as a case-by-case 'Substantially similar' review under its administrative code rather than a fixed state list, and plumbing reciprocity with Maryland (cross-confirmed from Maryland'S side). No sheet-metal-specific reciprocity was identified.
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
- https://www.bellafsm.com/hvac-license-requirements/ (secondary, accessed 2026-07-24)
Florida
State licenseSame CILB structure documented in the fl HVAC entry: certified (statewide) or registered (local), trade plus business & finance exams, 4 years qualifying experience, financial responsibility, insurance, background check.
Florida has no standalone sheet metal license - it falls under air conditioning contractor licensing, which has no formal reciprocity with any state (Florida's reciprocity covers only general/building/residential classifications). Case-by-case endorsement is the only path.
Why, and what applies instead: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. This dataset confirms from DBPR's own reciprocity form (CILB 32) that Florida'S formal reciprocity covers only General, Building, and Residential contractor classifications - not air conditioning or mechanical. Case-by-case endorsement (form CILB 10) is the only pathway for HVAC-family classifications.
- https://www2.myfloridalicense.com/pro/cilb/documents/CILB32_Reciprocity.pdf (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Georgia
State licenseSame Conditioned Air structure documented in the ga HVAC entry: board application, PSI exam, 4+ hours continuing education annually.
Georgia has no standalone sheet metal license - ductwork falls under Conditioned Air Contractor licensing, which reciprocates with South Carolina and Texas only.
What's actually required: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. Georgia's conditioned-air reciprocity with South Carolina and Texas is documented and cross-confirmed from Texas' own TDLR application. Whether sheet-metal-only scope falls within conditioned air licensing wasn't independently confirmed.
- https://www.tdlr.texas.gov/acr/forms/acr002%20contractor%20license%20application.pdf (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Hawaii
State licenseSame CLB structure documented for Hawaii's other trades: 4 years supervisory experience within the last 10 years, trade exam plus Business & Law exam (75%+ each), general liability insurance ($100K/$300K minimum), case-by-case bond. $1,000 threshold.
Hawaii licenses sheet metal as a CLB specialty classification. Hawaii has no reciprocity agreements with any jurisdiction - its licensing agency states this plainly and applies it across all trade boards.
Why, and what applies instead: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. This dataset confirms from an official government source quoting DCCA policy: 'Hawaii does not have reciprocity agreements with other jurisdictions.' DCCA applies this across its licensing boards.
- https://www.governmentjobs.com/careers/hawaii/jobs/newprint/1056915 (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Idaho
State licenseDOPL HVAC Board licensing structure. Idaho's separate Contractors Board registration (business entity, no exam) also applies.
Idaho licenses sheet metal work through DOPL's HVAC Board, whose reciprocity wasn'T confirmed. Idaho's 13-state electrical reciprocity is a different bureau'S program - and notably doesn't even cover Idaho'S own electrical contractor license.
What applies instead: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. This dataset's Idaho HVAC record left the HVAC Board'S reciprocity unconfirmed. Idaho's well-documented 13-state journeyman electrical reciprocity is a separate bureau'S program and explicitly does not even extend to Idaho's own Electrical Contractor business license, let alone to HVAC or sheet metal.
Note: Same open item flagged in this dataset's ID HVAC record.
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Illinois
No state license — local/city licensing onlyThere is no state license for this trade — licensing, where it exists, happens at the city or county level.
Varies by municipality. Federal EPA 608 certification is required for refrigerant work.
Illinois has no statewide sheet metal or HVAC license - it's local. Illinois does license plumbing, roofing, and fire sprinkler statewide, which makes the absence here worth confirming with your municipality.
What applies instead: No state license exists, so no state reciprocity framework applies. Note that Illinois does license plumbing (IDPH), roofing (IDFPR), and fire sprinkler (State Fire Marshal) statewide - but not HVAC or sheet metal.
- https://idfpr.illinois.gov/profs/proflist.html (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Indiana
No state license — local/city licensing onlyThere is no state license for this trade — licensing, where it exists, happens at the city or county level.
Varies by municipality (Indianapolis, Fort Wayne/Allen County).
Indiana has no statewide sheet metal or HVAC license - it's local. Plumbing is the only construction trade Indiana licenses statewide.
What applies instead: No state license exists, so no state reciprocity framework applies.
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Iowa
State licenseNotable: per the Institute for Justice survey, Iowa imposes the highest overall burden in the nation for commercial HVAC sheet metal contractor licensing - $434 in fees, 2 exams, and six years of experience (the longest experience requirement found for this trade). Out-of-state contractors must additionally file a $25,000 bond, versus $5,000 for in-state.
Iowa has the most burdensome sheet metal contractor licensing in the country - six years of experience plus two exams. Reciprocity wasn't confirmed, and Iowa'S documented electrical reciprocity is a different board's program. Out-of-state contractors also face a higher bond ($25,000 vs $5,000).
What applies instead: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. This dataset's Iowa records leave the Plumbing and Mechanical Systems Board'S reciprocity unconfirmed. Iowa's well-documented electrical reciprocity (from two official DIAL documents) is the Electrical Examining Board'S program and does not extend to mechanical or sheet metal trades.
Note: Same open item flagged in this dataset's IA plumber and HVAC records - needs a dedicated check with the Plumbing and Mechanical Systems Board.
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Kansas
No state license — local/city licensing onlyThere is no state license for this trade — licensing, where it exists, happens at the city or county level.
Varies by municipality (Wichita, Overland Park, Olathe, Topeka, Kansas City KS).
Kansas has no statewide sheet metal or HVAC license - it's entirely local, matching every Kansas trade except roofing.
What applies instead: No state license exists, so no state reciprocity framework applies.
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Kentucky
State licenseSame DHBC structure documented in the ky HVAC entry.
Kentucky licenses sheet metal under DHBC's HVAC Division, with a reciprocal relationship with Ohio cross-confirmed from Ohio'S own board. Kentucky's complete list wasn'T independently verified.
What's actually required: Cross-confirmed only in the Ohio-accepts-Kentucky direction from Ohio's own OCILB application. Kentucky'S complete accepted-state list for HVAC wasn't independently verified.
- https://com.ohio.gov/divisions-and-programs/industrial-compliance/boards/ohio-construction-industry-licensing-board/contractors-and-contracting-companies/kentucky-reciprocity-application (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Louisiana
State licenseSame LSLBC structure documented in the la HVAC entry: Mechanical Contractor license required for work valued over $10,000.
Louisiana licenses sheet metal under LSLBC's Mechanical Work classification. Louisiana'S mechanical license is recognized by Alabama and Ohio, confirmed from those states' own boards.
What's actually required: Cross-confirmed from Alabama's and Ohio's own boards (both accept exam-earned Louisiana mechanical licenses). Louisiana'S own complete inbound acceptance list wasn't independently verified from LSLBC.
- https://hacr.alabama.gov/new-license-application/ (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Maine
No license — state or localNo license exists for this trade at any level — state or local — in this state.
No state credential. The Maine Fuel Board licenses oil and solid fuel technicians specifically. Local business licenses apply (Portland, Bangor).
Maine has no state sheet metal or HVAC license at all - confirmed on the state's own materials. There is no reciprocity because there is no state license.
What applies instead: No state license exists, so no state reciprocity framework applies. Maine's precisely-documented electrical reciprocity is the Electricians' Examining Board's program.
- https://contractorlicenserequirements.com/maine/electrician-license-requirements/ (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Maryland
State licenseSame HVACR board structure documented in the MD HVAC entry: six license levels including Master Unlimited, Master Restricted by category, Journeyman, Journeyman Restricted, and Limited; 3 years apprentice/journeyman experience plus 1,875 hours and an exam for most levels.
Maryland licenses sheet metal work under its HVACR board, which reciprocates with Virginia and Delaware - confirmed on Maryland's own pages and cross-confirmed from Virginia'S side.
What's actually required: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. Maryland's HVACR reciprocity with Virginia and Delaware is confirmed from Maryland'S own official pages and bidirectionally cross-confirmed against Virginia's own reciprocity document. The out-of-state license must be active, equivalent to Maryland'S, and earned under requirements at least as strict.
- https://www.labor.maryland.gov/license/hvacr/hvacrrecip.shtml (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Massachusetts
State licenseDedicated board licensing with an exam required (confirmed in the Institute for Justice survey). Massachusetts is unusual in fragmenting HVAC-related work across four distinct boards rather than issuing a single HVAC contractor license.
Massachusetts has a dedicated Board of Sheet Metal Workers - one of four separate boards the state splits HVAC-related work across. Massachusetts consistently does not recognize out-of-state contractor licenses.
Why, and what applies instead: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. This dataset confirms Massachusetts' consistent no-reciprocity posture: its own official guidance states 'Massachusetts does not recognize out of state contractor licenses,' and its plumbing board offers only case-by-case substantial-equivalency review.
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
- https://www.mass.gov/info-details/when-is-a-construction-supervisor-license-required (official, accessed 2026-07-24)
Michigan
State licenseSame LARA Mechanical Division structure documented in the MI HVAC entry: at least 3 years experience per work classification plus exam.
Michigan licenses sheet metal as a classification under Mechanical Contractor licensing, and has no reciprocity with any state - confirmed by Michigan's own licensing agency across all its trades.
Why, and what applies instead: Michigan's own LARA FAQ states flatly: 'Michigan does not hold reciprocal agreements with any other State.' This has held across every Michigan trade researched.
- https://www.michigan.gov/lara/bureau-list/bcc (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Minnesota
No state license — local/city licensing onlyThere is no state license for this trade — licensing, where it exists, happens at the city or county level.
Business-level: $25,000 Mechanical Contractor Bond with DLI. Individual-level: local competency cards in Minneapolis or St. Paul, which the two cities mutually recognize.
Minnesota has no state-level individual sheet metal or HVAC license - Minneapolis and St. Paul issue their own competency cards (which they mutually recognize). Businesses need a state Mechanical Contractor Bond. No interstate reciprocity applies.
What applies instead: No state-level individual credential exists to reciprocate. The Minneapolis/St. Paul mutual recognition is an intra-Minnesota city arrangement, not interstate reciprocity. Minnesota's DLI-administered electrical and plumbing reciprocity are separate programs.
- https://www.servicetitan.com/licensing/hvac/minnesota (secondary, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Mississippi
State license — commercial work onlyThis license covers commercial work only. Residential work is licensed separately, at the local level, if at all.
MSBOC Certificate of Responsibility with mechanical certification. Commercial threshold $50,000; mechanical/electrical/plumbing work triggers commercial licensing at $10,000.
Mississippi licenses sheet metal under MSBOC's mechanical certification, with HVAC reciprocity confirmed with Alabama, South Carolina (residential), and Tennessee. Note Tennessee is the only partner whose agreement explicitly extends to mechanical trades. Mississippi'S law and business exam is never waived.
What's actually required: Confirmed from MSBOC's own official reciprocity page (documented in the ms HVAC entry). Note MSBOC'S page explicitly states Tennessee is the only state whose agreement extends to mechanical and plumbing trades - other partners' waivers exclude them - so HVAC-family coverage should be verified per partner. Mississippi'S Law and Business Management exam is never waived.
- https://www.msboc.us/contractors/reciprocity/ (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-other-commercial/ (secondary, accessed 2026-07-24)
Missouri
No state license — local/city licensing onlyThere is no state license for this trade — licensing, where it exists, happens at the city or county level.
Varies by municipality (Kansas City, St. Louis, Springfield).
Missouri has no statewide sheet metal or HVAC license - it's regulated entirely locally.
What applies instead: No state license exists, so no state reciprocity framework applies.
- https://www.simplywise.com/blog/missouri-contractor-license/ (secondary, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Montana
State licenseRegistration/licensing through DLI. Montana's electrical and plumbing boards license those trades separately with their own exams.
Montana's sheet metal/HVAC reciprocity wasn'T confirmed in this research. Montana's 16-state electrical reciprocity is a separate board'S program and doesn't apply.
What applies instead: The mt HVAC entry left Montana's HVAC/mechanical reciprocity unconfirmed. Montana'S 16-state electrical reciprocity (Residential/Journeyman only, explicitly excluding Master) is the State Electrical Board's program and does not extend here.
Note: Same open item flagged in this dataset's MT HVAC record.
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Nebraska
No license — state or localNo license exists for this trade at any level — state or local — in this state.
Effectively no state competency requirement. NDOL contractor registration ($25/year, rising to $40 effective Aug. 1, 2026) verifies business identity and workers' comp coverage only.
Nebraska is the least burdensome state in the country for sheet metal contracting - no fees, no exam, no experience requirement at the state level. Only business registration applies, so there is no exam to waive and reciprocity doesn't meaningfully apply.
What applies instead: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. With no exam or experience requirement to waive, reciprocity as a concept doesn't meaningfully apply. Nebraska'S only statewide-licensed trade is electrical (documented with confirmed reciprocity with Iowa, Minnesota, South Dakota, and Texas).
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
- https://dol.nebraska.gov/conreg (official, accessed 2026-07-24)
Nevada
State licenseNotable: per the Institute for Justice survey, Nevada has the HIGHEST-COST sheet metal contractor licensing in the nation - $1,040 in fees, 2 exams, and 4 years of experience. Standard NSCB requirements otherwise apply: trade exam plus the Contractor Management Survey (Business & Law) exam, bond and insurance, $1,000 threshold under NRS 624.020.
Nevada licenses sheet metal as a C-21c classification under the State Contractors Board - and it's the most expensive sheet metal license in the country at roughly $1,040 in fees plus two exams. Nevada'S endorsement program is classification-specific; whether it covers C-21c wasn't confirmed.
What applies instead: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. Nevada's 'licensure by endorsement' program is documented as explicitly classification-specific (electrical with AZ/CA; plumbing-heating C-1 with AZ/CA/FL/TN; HVAC c-21 adding CT/LA; roofing c-15 with AZ/CA/UT). Whether endorsement extends to the C-21c sheet metal sub-classification specifically wasn't confirmed - given Nevada'S lists are classification-specific, it should not be assumed.
Note: Confirm whether NSCB endorsement covers the C-21c sheet metal classification specifically.
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
- https://careerkarma.com/blog/hvac-license-requirements-by-state/ (secondary, accessed 2026-07-24)
New Hampshire
State licenseBusiness-entity registration rather than an exam-based individual license for sheet metal/HVAC work. NH's OPLC separately licenses electricians and plumbers.
New Hampshire requires sheet metal/HVAC contractors to register as a Mechanical Business Entity rather than hold an exam-based license - so there's no exam to waive. New Hampshire'S documented electrical reciprocity is a separate board's program.
What applies instead: Registration-based rather than exam-based, so reciprocity as an exam-waiver concept doesn't map cleanly. New Hampshire'S extensively-documented electrical reciprocity (full agreements with ME, MA, VT plus a NERA journeyman list) is the Electricians' Board's program.
- https://www.hvacschools411.com/licensing-requirements/ (secondary, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
New Jersey
State licenseSame HVACR board structure documented in the nj HVAC entry: Master HVACR Contractor license required to perform, advertise, or bid HVAC work as a business (no small-jobs carve-out); four experience/education pathways; $3,000 bond plus $500,000 general liability insurance; biennial renewal with 5 CE hours.
New Jersey licenses sheet metal work under its Master HVACR Contractor license. New Jersey's reciprocity is conditional rather than a named-state list - your home state'S standards must be equal or stricter and that state must reciprocate back. Plan to sit the New Jersey exam.
Why, and what applies instead: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. The nj HVAC entry documents that New Jersey's reciprocity is conditional rather than a named-state list - it applies only if the home state'S standards are 'equal to or stricter than' New Jersey's and that state reciprocates back. No complete list of currently-qualifying states was found, and one industry source listed several states the board has determined do not meet comparable standards.
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
- https://www.njconsumeraffairs.gov/hvacr/Pages/default.aspx (official, accessed 2026-07-24)
New Mexico
State licenseSame CID structure documented for New Mexico's other trades: journeyman certificate and/or contractor (qualifying party) license, PSI trade exam plus NM Business & Law exam (75% each), $10,000 bond. No dollar minimum - any paid construction work requires a CID license.
New Mexico licenses sheet metal work through CID's Mechanical Bureau. Mechanical reciprocity wasn'T confirmed - and New Mexico's documented 10-state reciprocity applies specifically to journeyman electricians, not mechanical classifications.
What applies instead: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. New Mexico's confirmed 10-state reciprocity (from rld.nm.gov'S own page) applies specifically to the er-1 Journeyman electrician certificate. The NM plumber entry found plumbing has explicitly no reciprocity, and mechanical reciprocity was left unconfirmed.
Note: Same open item flagged in this dataset's NM HVAC and pipefitter records.
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
New York
No state license — local/city licensing onlyThere is no state license for this trade — licensing, where it exists, happens at the city or county level.
Varies by municipality. Since Dec. 2024, contractors on covered construction projects must register with the NYS Dept. Of Labor - a registration, not a trade license.
New York has no statewide sheet metal or HVAC license - licensing is entirely local, matching every New York trade.
What applies instead: No state license exists, so no state reciprocity framework applies - matching every New York trade.
- https://www.gettradelicense.com/new-york (secondary, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
North Carolina
State licenseSame board structure documented in the nc HVAC entry: documented qualifying experience and exam per heating group.
North Carolina licenses sheet metal under its Heating Group classifications, and the board states plainly it has no reciprocity agreements with any state. A South Carolina exam waiver and a residency-based Neighbor State pathway are the only exceptions.
Why, and what applies instead: The nc HVAC entry confirms from the board's own site: 'There are no license reciprocity agreements with any other state.' a South Carolina Technical Examination Waiver Agreement covers HVAC contractors (NC business/law exam still required), and the Neighbor State License Recognition Act offers a residency-based pathway for those previously licensed in GA, SC, TN, VA, or WV - neither is reciprocity.
- https://nclicensing.org/exam-information/ (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
North Dakota
State licenseSecretary of State contractor license: certificate of liability insurance naming the SOS as certificate holder, WSI certificate, license classes A-D by project value ceiling. Insurance/registration-based rather than exam-based.
North Dakota has no dedicated sheet metal or HVAC trade board - the work falls under the Secretary of State's contractor license, which is insurance-and-registration based rather than exam-based. Its documented electrical reciprocity is a separate board'S program.
What applies instead: The Secretary of State contractor license is registration/insurance-based rather than exam-based, so reciprocity as an exam-waiver concept doesn't map cleanly. North Dakota'S documented electrical reciprocity (Master with MN/SD; Journeyman with 10 states) is the State Electrical Board's program.
- https://www.sos.nd.gov/business/licensing-registration/contractors (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Ohio
State license — commercial work onlyThis license covers commercial work only. Residential work is licensed separately, at the local level, if at all.
Same OCILB structure documented in the oh HVAC entry: 5 years as a tradesperson in the trade, trade plus business and law exams, $500,000 liability insurance, background check.
Ohio licenses sheet metal under its OCILB HVAC classification for commercial work, carrying that classification's confirmed reciprocity with Alabama, Kentucky, Louisiana, South Carolina, and West Virginia (plus a Tennessee waiver arrangement). Licenses must be exam-earned, and Ohio'S business and law exam is never waived.
What's actually required: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. Because sheet metal runs through OCILB's HVAC classification, the reciprocity confirmed 'S Ohio HVAC record applies - exam-earned licenses only (grandfathered or reciprocally-obtained licenses don't qualify), with Ohio'S business and law exam always still required. Mississippi appears in some secondary sources but was deliberately excluded from this dataset for lack of an official OCILB application.
- https://com.ohio.gov/divisions-and-programs/industrial-compliance/boards/ohio-construction-industry-licensing-board (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Oklahoma
State licenseSame CIB structure documented in the ok HVAC entry: licensing required regardless of project value for mechanical work.
Oklahoma licenses sheet metal under CIB's mechanical/HVAC programs, whose reciprocity list wasn'T confirmed. Oklahoma's documented 10-state electrical reciprocity is a separate program.
What applies instead: The ok HVAC entry left the CIB's mechanical reciprocity list unconfirmed. Oklahoma'S well-documented 10-state electrical reciprocity - which the Oklahoma Administrative Code reveals requires true bilateral mutual recognition - is the electrical program specifically.
Note: Same open item flagged in this dataset's OK HVAC record.
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Oregon
State licenseCCB business license: 16-hour pre-license training plus exam, bond, insurance, no dollar exemption beyond casual jobs under $1,000. BCD individual credential: 2 years/4,000 hours qualifying experience plus exam (75% pass).
Oregon's sheet metal/HVAC business license (via CCB) has no reciprocity with any state and requires the Oregon exam regardless of out-of-state credentials. Oregon'S narrow BCD trade reciprocity covers electrical and plumbing specifically.
Why, and what applies instead: This dataset confirms Oregon's CCB has no reciprocity with any state and does not accept NASCLA for this classification - reciprocal applicants must still pass the Oregon-specific CCB exam. BCD'S individual-trade reciprocity is narrow and trade-specific (electrical with 7 states; plumbing with Idaho and Montana only).
- https://www.oregon.gov/bcd/licensing/pages/reciprocal.aspx (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Pennsylvania
No state license — local/city licensing onlyThere is no state license for this trade — licensing, where it exists, happens at the city or county level.
Varies by municipality. HICPA registration requires no exam - only insurance proof.
Pennsylvania has no statewide sheet metal or HVAC license - it's municipal, with Philadelphia and Pittsburgh the largest jurisdictions. The statewide HICPA registration is a consumer-protection filing with no exam, not a license.
What applies instead: No exam-based state license exists, so no state reciprocity framework applies - matching every Pennsylvania trade.
- https://www.attorneygeneral.gov/resources/home-improvement-contractor-registration/ (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Rhode Island
State licenseConfirmed: Sheet Metal Technician licensing with Journeyperson Class I (4 years apprenticeship) and Class II (4,000 hours), each requiring apprenticeship completion plus an exam. Master/contractor levels: Class I requires holding a sheet metal journeyperson I license for one year plus an exam; Class II requires holding a journeyperson II license for three years plus an exam. An alternative contractor pathway exists via a Mechanical Engineering or Business Administration degree plus four years of sheet metal experience and an exam. Contractors must also register with the CRLB and carry Rhode Island business insurance.
Rhode Island has one of the clearest standalone sheet metal credentials in the country - Sheet Metal Technician licensing at Journeyperson and Master levels, through a board that names the trade explicitly. There is no exam waiver; an out-of-state license may make you eligible to sit for Rhode Island's exam.
Why, and what applies instead: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. The RI pipefitter entry documents the board's precise approach, confirmed from Rhode Island'S own regulation: an out-of-state license grants exam eligibility, not an exam waiver. Rhode Island's CRLB separately states outright there is no reciprocity for contractor registration.
- https://rules.sos.ri.gov/regulations/Part/260-30-15-2 (official, accessed 2026-07-24)
- https://www.workyard.com/construction-management/hvac-license (secondary, accessed 2026-07-24)
- https://www.nextinsurance.com/blog/hvac-license-requirements/ (secondary, accessed 2026-07-24)
South Carolina
State licenseSame fragmented multi-board structure documented across these states's SC records: technical exam per classification plus the SC Business Management & Law exam (never waived).
South Carolina licenses sheet metal under mechanical/HARV classifications split across commercial and residential boards. A reciprocity agreement with Alabama is confirmed from the actual signed document. South Carolina's business and law exam is never waived.
What's actually required: The Alabama agreement was confirmed by directly reading the signed reciprocity document (documented in the sc HVAC entry) - the strongest-sourced South Carolina finding. Other partners exist per SC's reported 9-state program, but classification-specific coverage wasn'T confirmed given SC's fragmented boards and the MASC-to-CAGC certification transition effective January 2026.
- https://www.llr.sc.gov/res/pdf/Waivers/Alabama-HVAC-agreement.pdf (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
South Dakota
No state license — local/city licensing onlyThere is no state license for this trade — licensing, where it exists, happens at the city or county level.
State: contractor excise tax license only. Local example (Rapid City): application, state excise tax license copy, $1,000,000 general aggregate liability insurance naming the city, workers' comp, $200 fee.
South Dakota has no state sheet metal or HVAC license - only a contractor excise tax registration plus local licensing. Its 15-state electrical reciprocity is a separate program.
What applies instead: No state HVAC/sheet metal license exists, so no state reciprocity framework applies. South Dakota's 15-state electrical reciprocity is the DLR Electrical Commission'S program.
- https://www.servicetitan.com/licensing/roofing/south-dakota (secondary, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Tennessee
State licenseSame TBLC structure documented across these states's TN records: Qualifying Party exam, CPA-reviewed financial statement, insurance.
Tennessee licenses sheet metal under its HVAC/mechanical classification, with trade-exam waivers confirmed for Alabama, Ohio, and South Carolina (commercial). This list is narrower than Tennessee's electrical or general-contractor waivers.
What's actually required: Confirmed from Tennessee's own board sources (documented in the tn HVAC entry). Note the mechanical/HVAC waiver list is notably narrower than Tennessee'S electrical or general-contractor lists. NASCLA's commercial exam is also accepted.
- https://support.commerce.tn.gov/hc/en-us/articles/209638117-Reciprocity-Trade-Exam-Waiver-Agreement (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Texas
State licenseSame TDLR ACR structure documented in the tx HVAC entry: Class A (unlimited) or Class B (up to 25 tons cooling / 1.5M BTU heating), documented practical experience, exam, certificate of insurance.
Texas has no standalone sheet metal license - ductwork falls under TDLR's Air Conditioning and Refrigeration contractor licensing, which reciprocates with Georgia and South Carolina only.
What's actually required: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. Texas' ACR reciprocity (confirmed from TDLR'S own application) covers Georgia and South Carolina only. Whether sheet-metal-only scope falls within the ACR license or requires no license at all wasn't independently confirmed - Texas has no standalone sheet metal credential.
- https://www.tdlr.texas.gov/acr/forms/acr002%20contractor%20license%20application.pdf (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Utah
State licenseSame DOPL structure documented for Utah's other trades: pre-license education for specialty classifications, applicable exams, general liability insurance.
Utah licenses sheet metal under HVAC/mechanical classifications. Rather than named-state reciprocity, Utah offers a case-by-case endorsement pathway requiring 1+ year of equivalent licensure, with Utah's Business & Law exam still required.
Why, and what applies instead: This dataset documents Utah's general DOPL endorsement pathway (1+ year of equivalent out-of-state licensure, still requiring Utah'S Business & Law exam) rather than named-state reciprocity. Utah's electrical reciprocity is genuinely contested - three substantially different accounts were found across sources.
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Vermont
State licenseNot fully independently confirmed for a sheet metal credential specifically. Vermont's OPR separately handles the Residential Contractor credential ($10,000 threshold) documented in the VT roofer entry.
Vermont's sheet metal/HVAC reciprocity wasn'T confirmed in this research. Vermont's confirmed electrical reciprocity with New Hampshire and Maine is a separate board'S program.
What applies instead: The vt HVAC entry left Vermont's HVAC reciprocity unconfirmed. Vermont'S electrical reciprocity is confirmed from Vermont's own rules (a certified-letter pathway for New Hampshire and Maine, plus a broader Universal License route requiring mutual recognition), but that'S the Electricians' Licensing Board'S program.
Note: Same open item flagged in this dataset's VT HVAC record.
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Virginia
State licenseSame DPOR structure documented in the va HVAC entry: 4 years/8,000 hours qualifying experience or approved apprenticeship plus exam for the Tradesman credential; Class A/B/C business license by project-value tier (entry point $1,000).
Virginia licenses sheet metal work under its HVAC tradesman credential, whose reciprocity is limited to Maryland alone per Virginia's own official reciprocal-agreements document.
What's actually required: This is the same employee-vs-contractor distinction documented for carpentry elsewhere. Virginia's official DPOR 'Tradesmen Reciprocal Agreements' document - fetched in full and documented - enumerates reciprocity by named trade: electrical (7 jurisdictions), HVAC (Maryland only), plumbing/gas fitting (WSSC only). Sheet metal is not separately named, so HVAC'S Maryland agreement is the applicable pathway if the work falls under HVAC scope.
- https://www.dpor.virginia.gov/sites/default/files/boards/Tradesman/Tradesmen%20reciprocal%20agreements.pdf (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Washington
No individual license — contractor/business license onlyThis license attaches to the business that contracts directly with the customer, not to individual workers on the crew.
Business registration: $15,000 surety bond (specialty), $200,000/$50,000 or $250,000 combined liability insurance, UBI number. No individual trade exam for the business registration itself.
Washington doesn't license individual sheet metal or HVAC technicians - the contracting business registers as a specialty contractor (bond and insurance based, no trade exam). Washington'S contractor registrations have no reciprocity with any state.
Why, and what applies instead: Washington regulates this work at the business-registration level (bond and insurance, no exam), so the reciprocity concept that applies to its exam-based electrician and plumber licenses doesn't map here. This dataset confirms Washington'S contractor registrations have no reciprocity with any state.
- https://lni.wa.gov/licensing-permits/contractors-registration/ (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
West Virginia
State licenseSame WVCLB structure documented 's WV records: PSI Business & Law exam plus trade exam (70%+ each).
West Virginia licenses sheet metal under WVCLB's HVAC classification ($2,500 threshold), with a reciprocal relationship with Ohio confirmed from Ohio'S own form. West Virginia's complete inbound list wasn'T verified.
What's actually required: The Ohio relationship is documented from Ohio's own OCILB reciprocity form, which explicitly names HVAC and requires original testing in West Virginia (grandfathered or reciprocally-obtained licenses don'T qualify). West Virginia's own complete inbound list wasn'T independently verified.
- https://dam.assets.ohio.gov/image/upload/com.ohio.gov/DICO/OCILB/dico_WV_HVREPL_Reciprocity.pdf (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Wisconsin
State licenseSame DSPS structure documented in the wi HVAC entry: HVAC Contractor Qualifier exam ($95, Pearson VUE); Dwelling Contractor Qualifier requires a 12-hour DSPS course with no minimum experience.
Wisconsin licenses sheet metal under its HVAC Contractor Qualifier credential. An out-of-state HVAC license does not automatically satisfy Wisconsin's requirements - Wisconsin uses case-by-case comity review rather than named reciprocity agreements.
Why, and what applies instead: The wi HVAC entry confirms that mechanical/HVAC contractor licenses issued in other states do not automatically satisfy Wisconsin's DSPS requirements. Wisconsin generally handles out-of-state credentials through case-by-case 'Comity' review rather than named agreements; its narrow electrician reciprocity (Iowa, New Hampshire) is a separate program.
- https://dsps.wi.gov/Pages/Professions/HVACContractor/Default.aspx (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)
Wyoming
No state license — local/city licensing onlyThere is no state license for this trade — licensing, where it exists, happens at the city or county level.
Varies by locality. Cheyenne, for example, issues eight contractor license classifications with experience and reference requirements.
Wyoming has no statewide sheet metal or HVAC license - electrical is the only building trade Wyoming licenses at the state level. Licensing is county/city-level.
What applies instead: No state license exists, so no state reciprocity framework applies. Wyoming's extensive 16-state electrical reciprocity (Journeyman; only ID/SD/UT for Master) covers electricians only.
- https://wsfm.wyo.gov/electrical-safety/licensing (official, accessed 2026-07-24)
- https://occupationallicensing.com/occupation/sheet-metal-contractor-hvac-commercial/ (secondary, accessed 2026-07-24)