Contractor license lookup by state

Alabama General Contractors Board

State-licenses general contractors for projects of $50,000 or more. Electrical and plumbing licenses come from separate state boards, and most cities add their own permit requirements.

Division of Corporations, Business & Professional Licensing

Registers contractors and issues electrical and mechanical administrator certificates. Residential contractors must register with the state before taking on jobs in Alaska.

Arizona Registrar of Contractors

Licenses nearly all construction trades statewide. Free online lookup covers license class, bond status, and complaints before you sign anything.

Arkansas Contractors Licensing Board

State-licenses contractors for public works projects of $50,000 or more. Plumbing, HVAC, and home improvement follow separate rules — confirm requirements with the board and your city.

No single statewide portal - start with your city or county building department.

Contractors State License Board

Licenses every construction trade statewide. Verify any license number online for free — the lookup includes bond, workers comp, and disciplinary history.

No statewide general contractor license — most contractor licenses are issued by your city or county building department. The state does license electricians and plumbers through its Division of Professions and Occupations.

Department of Consumer Protection

Licenses electricians, plumbers, HVAC, and most other trades, and registers new-home and remodeling contractors.

Division of Professional Regulation

Licenses electricians, plumbers, HVAC technicians, and many other trades through its professional boards.

DC Department of Buildings

Issues general contractor and specialty trade licenses. Any contractor doing work in the District also needs a Basic Business License.

Dept. of Business & Professional Regulation (DBPR)

Licenses every construction trade statewide — one of the strictest licensing states in the country. Verify any license for free online before hiring.

State Licensing Board for Residential & General Contractors

State-licenses general and residential contractors. Electrical and plumbing licenses are issued by county and municipal boards, so check locally for those trades.

Dept. of Commerce & Consumer Affairs (PVL)

Licenses general contractors and nearly all specialty trades through the Professional & Vocational Licensing Division.

Bureau of Occupational Licenses (IBOL)

Registers contractors and licenses electricians and plumbers statewide. Ask for proof of registration before work begins.

No statewide general contractor license — cities like Chicago license contractors directly. Plumbers are licensed by the Illinois Department of Public Health; electricians are licensed locally.

No statewide general contractor license — most licensing happens at the city or county level. Plumbers are licensed by the Indiana Professional Licensing Agency.

No statewide general contractor license. Plumbers, mechanical/HVAC contractors, and electricians are licensed by state boards; permits run through your city.

No single statewide portal - start with your city or county building department.

No statewide general contractor license — counties and cities issue licenses and permits. Roofers must register with the Kansas Attorney General, and electrical and plumbing work is licensed locally.

No single statewide portal - start with your city or county building department.

Dept. of Housing, Buildings & Construction

Requires contractors to hold a license for jobs of $1,000 or more, including master electricians and HVAC contractors.

No single statewide portal - start with your city or county building department.

State Licensing Board for Contractors

Licenses commercial, residential, and specialty contractors statewide. Free online verification includes license history and complaints.

No state license for general contractors — towns handle permits. Electricians and plumbers are licensed by the Office of Professional & Occupational Regulation.

No single statewide portal - start with your city or county building department.

Maryland Home Improvement Commission (MHIC)

Registers home improvement contractors — required for nearly all residential work. Plumbers are licensed by the state; electricians by county boards.

Division of Professional Licensure

Requires a Construction Supervisor License for most building work. Electricians and plumbers are licensed through the Division of Professional Licensure.

Dept. of Licensing & Regulatory Affairs (LARA)

Licenses residential builders and remodelers, electrical contractors, and mechanical (HVAC/plumbing) contractors statewide.

Dept. of Labor & Industry

Licenses residential builders, remodelers, electricians, and plumbers. Residential contractors must keep a surety bond and insurance on file with the state.

State Board of Contractors

Licenses commercial contractors for projects of $50,000 or more and registers residential builders. Plumbers are licensed by the State Plumbing Board.

No statewide contractor license — St. Louis, Kansas City, and most counties issue their own. Electrical and plumbing work is licensed locally as well; ask your city building department.

No single statewide portal - start with your city or county building department.

Dept. of Labor & Industry (Business Standards)

Requires contractor registration for anyone bidding or performing construction work. Electricians and plumbers are licensed by separate state boards.

Registers contractors with the Department of Labor and licenses electricians and plumbers through state boards. Confirm local permit requirements with your city or county.

No single statewide portal - start with your city or county building department.

Nevada State Contractors Board

Licenses all contractors statewide. Free online license lookup includes bond, insurance, and disciplinary history.

Licenses electricians and plumbers through its Plumbers & Electricians Licensing Board. General contractor licensing is handled by towns and cities.

Division of Consumer Affairs

Licenses electrical and plumbing contractors through state boards, and requires every home improvement contractor to register with Consumer Affairs before doing work.

Regulation & Licensing Dept., Construction Industries Division

Licenses general contractors and all specialty trades statewide.

No statewide general contractor license — New York City and other municipalities license and register contractors directly. Contact your city or county building department; NYC work runs through the Department of Buildings.

No single statewide portal - start with your city or county building department.

Licensing Board for General Contractors

State-licenses general contractors for projects of $30,000 or more. Electricians and plumbers are licensed by boards under the Department of Insurance.

Secretary of State

Registers contractors with the Secretary of State, which also licenses electricians and plumbers. Confirm local permits with your city.

Construction Industry Licensing Board (OCILB)

State-licenses electrical, plumbing, HVAC, hydronics, and refrigeration contractors. Residential general contractor licensing is set by local governments.

Construction Industries Board (CIB)

Licenses plumbers, electricians, HVAC contractors, and general contractors statewide. Verify the license number and ask for proof of insurance before signing.

Construction Contractors Board (CCB)

Every contractor must be registered with the CCB. Free lookups cover license, bond, insurance, and complaint history.

Home improvement contractors must register with the Attorney General office. Electricians and plumbers are licensed by cities and counties — Philadelphia and Allegheny County run their own systems.

Contractors Registration & Licensing Board

Registers all contractors and licenses major trades. Confirm registration and trade licenses before work begins.

No single statewide portal - start with your city or county building department.

Dept. of Labor, Licensing & Regulation (LLR)

Licenses residential builders, specialty contractors for projects of $5,000 or more, electricians, plumbers, and HVAC technicians.

Registers contractors for tax purposes and licenses electricians and plumbers through state commissions. Check local permit rules with your city or county.

No single statewide portal - start with your city or county building department.

Board for Licensing Contractors

Licenses contractors for projects of $25,000 or more, plus state-limited electrical and plumbing licenses for smaller jobs. Municipalities add their own limits.

Dept. of Licensing & Regulation (TDLR)

TDLR licenses HVAC technicians and electricians; plumbers are licensed by the Texas State Board of Plumbing Examiners. Most other trades are licensed locally.

Division of Occupational & Professional Licensing (DOPL)

Licenses general contractors and all trades statewide through DOPL.

Licenses electricians and plumbers through the Office of Professional Regulation. General contractors are permitted by towns — confirm business registration with the Secretary of State.

No single statewide portal - start with your city or county building department.

Dept. of Professional & Occupational Regulation (DPOR)

Licenses contractors for projects of $1,000 or more, with separate trade classifications for electrical, plumbing, HVAC, and gas work.

Dept. of Labor & Industries (L&I)

Registers every contractor and licenses electricians and plumbers. Free lookup shows bond, insurance, and complaint history.

Requires a contractor license for jobs of $2,500 or more through the Division of Labor. Electricians are certified through the State Fire Marshal office.

No single statewide portal - start with your city or county building department.

Dept. of Safety & Professional Services

Licenses dwelling contractors, electricians, and plumbers statewide.

No statewide general contractor license. Electricians and plumbers are licensed by state boards; check your county for permits and the Secretary of State for business registration.

No single statewide portal - start with your city or county building department.