Oklahoma contractor license requirements: no general license, but four trades are regulated

Oklahoma's licensing map is simple to describe and easy to get wrong. There is no state license to call yourself a general contractor, a painter or a handyman. There are state licenses for the trades where bad work starts fires, floods basements or leaks into walls, and roofers sit in their own registration system. Cities add permits and sometimes their own registration on top. This page goes trade by trade as of October 2026. It is general information, not legal advice. Entity setup, insurance and tax questions are on our Oklahoma startup page.

No general contractor license, and the trades the board does cover

The Oklahoma Construction Industries Board (CIB) states on its site that general contractors are not currently required to have a state license in Oklahoma for general contracting. It adds that trade licenses or registrations are required for performing, or offering to perform, licensed or registered trade work, and that local jurisdictions may have their own requirements.

The CIB's trade pages cover electrical, plumbing, mechanical, roofing, home inspectors and building inspectors. For every trade it licenses, the CIB's statute lets it issue a license by reciprocity to someone licensed in another state, if that state's requirements are substantially the same, the license was earned by exam, you practiced the trade lawfully there for the year before applying, and no discipline is pending (59 O.S. 1000.5a). The board has discretion, so ask before you move a crew across the border.

Roofing: annual registration and a new residential endorsement

Roofing is the trade where Oklahoma has changed the most. All roofing contractors must register with the CIB every year, registration is nontransferable, and it is unlawful to act as a roofing contractor, or advertise as one, without it (59 O.S. 1151.3). Permit offices must refuse a roofing permit unless the applicant shows registration, and you supply your registration number when you apply for a permit (59 O.S. 1151.3 and 1151.17). A court will not hear a claim from an unregistered roofer about the roofing business.

The CIB's roofing page sets insurance by type of work. A residential-only roofer needs at least $500,000 of general liability insurance. A roofer with the commercial endorsement needs $1,000,000. The certificate must name the CIB as certificate holder, and the carrier must confirm the policy covers roofing work.

House Bill 1628 became law on May 28, 2025 and created a Residential Roofing Endorsement. Later laws moved the dates, and the CIB's page now lists these:

The initial residential endorsement application is $230 and renewal is $100, as listed by the CIB in October 2026. The exam is run by PSI, with a 70% passing score and waits of 30 days after a first failure and 90 days after later ones. Roofers registered and in good standing on or before January 1, 2027 can apply for grandfathering and either complete 10 hours of approved continuing education or pass the exam. Residential renewal will need 4 hours of continuing education a year from January 1, 2028. Labor-only crews must be registered, and from January 1, 2028 they must work directly for a contractor with the residential endorsement and keep proof on site. Read the national roofing license guide for how other states compare, then confirm every date on the CIB page.

Electrical, plumbing and mechanical: three ladders, one board

Each of the three trades follows apprentice, journeyman, contractor, and each has its own committee and exam. Apprentice work counts toward a license only if it is verifiable through apprentice registration. The CIB does not track your hours, so keep your own record. If a former employer will not provide hours, the CIB's pages allow tax records or a Social Security work history report.

Electrical. Under 59 O.S. 1690, it is a misdemeanor to perform journeyman electrician work without being licensed as a journeyman or electrical contractor, or to act as or offer to act as an electrical contractor unlicensed. House Bill 3215, signed May 3, 2024, lowered the passing grade for contractor and journeyman exams from 75% to 70% on exams taken on or after November 1, 2024, and cut the retest wait from 90 to 30 days. From January 1, 2026, journeymen and contractors need 12 hours of continuing education every three years, and apprentices 3 hours a year. A city that has adopted an electrical code and appointed an inspector controls interpretation of the code inside its limits (59 O.S. 1689). See how to become a licensed electrician.

Plumbing. The CIB lists apprentice, journeyman and contractor licenses, plus a plumbing journeyman route through an Arkansas reciprocity agreement. A contractor license is active only with a bond and insurance on file, or the CIB's waiver affidavit, and lapsed insurance makes the license inactive. Journeymen and contractors need 6 hours of continuing education within the 36 months before expiration. The Plumbing License Law exempts minor repairs such as replacing faucets or minor working parts of fixtures, and an individual's work on their own residence (59 O.S. 1017). Our plumbing license guide gives the national path.

Mechanical (HVAC). The Mechanical Licensing Act bars anyone from engaging in, or offering by advertisement, mechanical work as a journeyman or contractor without a CIB license, and a business acts as a mechanical firm only if a contractor is responsible for all its mechanical work (59 O.S. 1850.7). Gas piping, floor furnaces, wall heaters and radiant-floor heating also require a mechanical license or a plumbing contractor or journeyman license (1850.10). Exemptions include an owner's minor repairs and portable, self-contained ductless units. The CIB says air duct cleaning needs no state license. A mechanical license is valid statewide, and a locally licensed person who works only in that locality need not hold it, but a city can still inspect, require permits and require contractors to register (1850.12, 1850.15). Violations can bring a misdemeanor fine of $200 to $1,000, or an administrative fine of up to $500 per violation with a $1,000 cap (1850.11).

Trades licensed by other Oklahoma agencies

Locksmith, alarm and fire sprinkler. These fall under the Alarm, Locksmith and Fire Sprinkler Industry Act, run by the Commissioner of Labor with an industry committee. No one may engage in those businesses without a license (59 O.S. 1800.6). The Act exempts people installing on their own property and the sale of products meant for customer installation.

Home inspection. The CIB licenses home inspectors. It is unlawful to inspect for compensation, or hold yourself out as an inspector, without a license (59 O.S. 858-623). The Act covers properties of four or fewer dwelling units and excludes new-construction inspections and single-item inspections by a trade expert.

Lawn and pest application. Pesticide applicators are licensed by the State Board of Agriculture, run by the Department of Agriculture, Food and Forestry, in each category of work, and it is unlawful to advertise as an applicator without the license (2 O.S. 3-82). The statute sets a $100 fee per category with a $500 annual maximum per business location, $50 per written exam and $50 per practical exam, as written in the Oklahoma Senate's statute compilation, which can lag current rules. Certification lasts five years, and liability insurance is required before a commercial license issues. See our pest control license guide.

Septic. The Department of Environmental Quality certifies installers of on-site sewage systems. Under Senate Bill 111, effective November 1, 2025, certification is required only for someone who installs more than one system per calendar year. A non-certified installer may do one, and DEQ must inspect it. Certification needs a $75,000 surety bond, five experience installations and two joint inspections in the category, and a training score of 70% or higher.

Trades without a state license, and what cities add

Painting, cleaning, mowing, pressure washing, junk removal and handyman work are not on the CIB's list of licensed trades. Local rules still apply, so call the building or licensing office in each city for a business license, contractor registration or permit schedule. When a job touches wiring, gas piping, pipes or a roof, the trade license rules above take over even if you think of yourself as a handyman.

Put your registration or license number on your website, truck lettering and estimates. The CIB's display rules for roofers start January 1, 2027, and homeowners can already check roofers on the CIB lookup. Your own website is the place to show that. Confirm all of this with the CIB, the Department of Labor, the Department of Agriculture, Food and Forestry and DEQ, because dates and fees change. Statute citations here come from the Oklahoma Senate's compilation, which can lag recent session laws.

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