Quick answer: Oklahoma licenses only its mechanical trades at the state level through the Construction Industries Board (CIB). Plumbers, electricians and HVAC/mechanical contractors must hold a CIB license, and roofers must register with the CIB under the Roofing Contractor Registration Act. Oklahoma has no state general-contractor license, so general contractors, painters, carpenters, landscapers, handymen and cleaners are not state-licensed – though local cities and counties may set their own rules, and landscapers who apply pesticides need a separate license from the Department of Agriculture.
The table below shows which of the common trades need an Oklahoma state license or registration and which do not.
Which trades need a license in Oklahoma?
| Trade | State license required? | Licensing body |
|---|---|---|
| Plumber | Yes | State license required – Construction Industries Board (CIB) under the Plumbing License Law, 59 O.S. § 1001 et seq. Apprentice, journeyman and contractor levels. |
| Electrician | Yes | State license required – CIB under the Electrical License Act, 59 O.S. § 1680 et seq. Apprentice, journeyman and contractor levels. |
| HVAC | Yes | State license required – CIB under the Mechanical Licensing Act, 59 O.S. § 1850.1 et seq. Covers heating, ventilation, air-conditioning and refrigeration. |
| General Contractor | No | No state license. Oklahoma does not license general contractors at the state level, though local cities and counties may require registration or permits. |
| Roofer | Registration | State registration required – roofers must register with the CIB under the Roofing Contractor Registration Act, 59 O.S. § 1151.1 et seq. A commercial roofer endorsement is needed for commercial work. |
| Painter | No | No state license for painting. Local business licensing or permits may apply depending on the city or county. |
| Carpenter | No | No state license for general carpentry, cabinetry or framing – unless the job crosses into a licensed trade such as electrical, plumbing or mechanical work. |
| Landscaper | No | No state contractor license for general landscaping or lawn care. A separate commercial pesticide applicator license from the Oklahoma Dept. of Agriculture (ODAFF) is required to apply pesticides for hire. |
| Handyman | No | No state license for general handyman work. A handyman may not perform work reserved for a CIB-licensed trade such as electrical, plumbing or HVAC. |
| Cleaner | No | No state occupational or contractor license required for residential or commercial cleaning. |
"Yes" means a CIB-issued state license is required; "Registration" means CIB roofing registration is required; unlicensed trades may still need a local business license or permit and must not perform work reserved for a licensed trade.
How Oklahoma licenses construction trades
Oklahoma regulates construction trades far more narrowly than many states. There is no state general-contractor license. Instead, the Construction Industries Board (CIB) licenses the mechanical trades – plumbing, electrical and mechanical (HVAC/refrigeration) – statewide, and separately administers roofing contractor registration. The CIB also licenses building inspectors and home inspectors.
Each licensed trade runs a three-step ladder: apprentice (registration only), journeyman (documented experience hours plus a written exam), and contractor (a business-level license that requires a qualifying party, insurance and, for plumbing, a bond). Exams are administered through PSI, and licenses are renewed on the CIB's cycle with periodic continuing education.
The CIB-licensed trades in detail
Plumbers are licensed under the Plumbing License Law (59 O.S. § 1001 et seq.), electricians under the Electrical License Act (59 O.S. § 1680 et seq.), and HVAC/mechanical contractors under the Mechanical Licensing Act (59 O.S. § 1850.1 et seq.). For each of these trades it is unlawful to perform or offer to perform the regulated work without the proper CIB credential.
These are the trades where hiring an unlicensed person for reserved work is illegal and can jeopardize permits, inspections, insurance and warranties. A contractor-level license generally requires a licensed journeyman as the qualifying party plus proof of liability insurance (and a surety bond for plumbing).
Roofing: registration, not a license
Roofers occupy a middle category. Under the Roofing Contractor Registration Act (59 O.S. § 1151.1 et seq.), it is unlawful to act as a roofing contractor without a current CIB roofing registration. This is a registration rather than an exam-based license: roofers register annually and must carry general liability insurance – a minimum of $500,000 for residential work, rising to $1,000,000 with the commercial roofer endorsement required for commercial roofing.
Limited exemptions exist, for example property owners performing roofing on their own residential or farm property. Labor-only crews installing shingles or shakes on a sloped roof must still register but do not need the commercial endorsement.
Trades with no Oklahoma state license
Many common trades are not licensed by the state at all: general contracting, painting, carpentry, landscaping, handyman work and cleaning. Oklahoma is relatively unusual in having no statewide general-contractor license – general contractors and subcontractors doing commercial or residential building, remodeling and repair are not required to hold a state license.
Being unlicensed does not mean unregulated. These businesses typically still need a local business license or permits, must carry appropriate insurance, and cannot cross into a licensed scope – a handyman, carpenter or general contractor cannot legally perform electrical, plumbing or HVAC work reserved for a CIB-licensed trade, or perform roofing without CIB registration.
Local rules and related state licenses
Because Oklahoma has no state general-contractor license, cities and counties fill much of the gap. Many local jurisdictions require contractors to register, pull permits, or hold a local business license, and building permits are required for many projects regardless of who does the work. Always confirm requirements with your city or county building department before starting a job.
Some trades also trigger separate state licenses outside the CIB. Landscapers who apply pesticides or fertilizers for hire need a commercial pesticide applicator license from the Oklahoma Department of Agriculture, Food & Forestry (ODAFF), including passing a core exam plus the ornamental and turf category.
How to get licensed in Oklahoma
- Identify your trade and whether it is CIB-licensed (plumbing, electrical, mechanical/HVAC), CIB roofing registration, or unlicensed at the state level (general contracting, painting, carpentry, landscaping, handyman, cleaning).
- For a licensed trade, work up the ladder: register as an apprentice, then document the required experience hours to qualify for the journeyman exam administered through PSI.
- Pass the required journeyman exam, then apply for a contractor license with a qualifying party, proof of liability insurance, and a surety bond where required (plumbing).
- For roofing, register with the CIB under the Roofing Contractor Registration Act and provide proof of general liability insurance, adding the commercial roofer endorsement if you take commercial work.
- Check with your city or county building department for local registration, business-license or permit requirements, and obtain any separate state license (such as an ODAFF pesticide applicator license) your work requires.
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Frequently asked questions
Does Oklahoma require a general contractor license?
No. Oklahoma does not license general contractors at the state level. General contractors and subcontractors doing commercial or residential building, remodeling or repair are not required to hold a state license. However, local cities and counties may require registration or permits, and any electrical, plumbing, HVAC or roofing work must still be done by the properly CIB-licensed or CIB-registered trade.
Do roofers need a license in Oklahoma?
Roofers must register with the Construction Industries Board (CIB) under the Roofing Contractor Registration Act (59 O.S. § 1151.1 et seq.) – it is a registration rather than an exam-based license. Registrants must carry general liability insurance (at least $500,000 for residential work), and a commercial roofer endorsement with $1,000,000 coverage is required for commercial roofing.
Which trades does the Oklahoma Construction Industries Board license?
The CIB licenses the mechanical trades statewide – plumbing (59 O.S. § 1001 et seq.), electrical (59 O.S. § 1680 et seq.) and mechanical/HVAC (59 O.S. § 1850.1 et seq.) – and administers roofing contractor registration. It also licenses building inspectors and home inspectors. It does not license general contractors, painters, carpenters, landscapers, handymen or cleaners.
Does a handyman or painter need a license in Oklahoma?
No. Oklahoma does not license handymen or painters at the state level. They may still need a local business license or permits, and they cannot perform work reserved for a CIB-licensed trade – such as electrical, plumbing or HVAC – or perform roofing without CIB registration.
Sources: Oklahoma Construction Industries Board (CIB), CIB – Frequently Asked Questions, CIB – Building and General Construction Contractors, Title 59 O.S. § 1151.9 – Roofing Contractor Registration Act, Oklahoma Dept. of Agriculture, Food & Forestry – Licensing & Permits, 2025. Licensing rules change — always confirm current requirements with the relevant state board and your local city before you work.