Alabama
General Contractors Board
2525 Fairlane Drive
Montgomery, AL 36116
(334) 272-5030
Commercial and Residential Contractors License Required.
Alaska
Division of Occupational Licensing
Box 110806
Juneau, AK 99811-0806
(907) 465-2546
Commercial and Residential Contractors License Required.
Arizona
Arizona Registrar of Contractors
800 W. Washington, 6th Floor
Phoenix, AZ 85007
(602) 542-1525
Commercial and Residential Contractors License Required.
Arkansas
State of Arkansas
Contractor's Licensing Board
4100 Richards Road
North Little Rock, AR 72117
501-372-4661
Commercial and Residential Contractors License Required.
California
Contractors State License Board
P.O. box 26000
Sacramento, CA 95826
800-321-CSLB
Commercial and Residential Contractors License Required.
Colorado
Division of Registrations
1560 Broadway, Suite 1350
Denver, CO 80202
303-894-7800
State license required for electrical, asbestos removal, plumbers, and pesticides trade.
No state license for general contracting.
Licensing may be required on a city or county level.
Connecticut
Department of Consumer Protection
165 Capitol Avenue
Hartford, CT 06106
860-713-6000
License required for electrical and plumbing trades.
No state license for general contracting, however, must register with the State.
Delaware
Division of Revenue
Carvel State Building
820 N. French Street
Wilmington, DE 19801
302-577-82000
Commercial and Residential Contractors License Required.
District of Columbia
No information available.
Florida
Dept. of Business and Professional Regulation
1940 N. Monroe
Tallahassee, FL 3299-0783
850-487-1395
Contractors license required for general contracting and most specialty trades.
Georgia
Construction Industry Board
237 Coliseum Drive
Macon, GA 31217
478-207-1416
No state license for general contracting required.
License is required for Air Conditioning, Electrical, and Plumbing trades.
Hawaii
P.O. Box 3469
Honolulu, HI 96801
808-586-3000
Contractors license required for general contracting and most specialty trades.
Idaho
Division of Building Safety
1090 East Watertower Street
Meridian, ID 83642
208-334-3950
License required for electrical, plumbing, pesticide,
manufactured housing, landscape architecture,
and asbestos removal.
No state license for general contracting.
Illinois
Department of Professional Regulation
320 W. Washington Street
Springfield, IL 62786
217-782-0458
No state license required for general contracting. License required for roofing.
Indiana
Indiana Professional Licensing Agency
302 West Washington Street, Room E034
Indianapolis, IN 46204
317-232-2980
License required for plumbing.
All other licensing is done at the local county level.
Iowa
Labor Services Division
1000 East Grand Avenue
Des Moines, IA 50319
515-281-5387
Licensing for plumbers and electricians is done at the local level.
No state license for general contracting, however, all businesses must register with the state.
Kansas
Dept. of Revenue - Division of Taxation
Robert B. Docking State Building
Topeka, KS 66625
913-296-0222
No state license for general contracting.
All businesses must register with the Department of Revenue.
Kentucky
Department of Housing, Buildings, and Construction
101 Sea Hero Road, Suite 100
Frankfort, Kentucky 40601
502-573-0364
No state license for general contracting.
License required for plumbing, and HVAC.
Louisiana
Contractors Board
P.O. Box 14419
Baton Rouge, LA 70898
225-765-2301
Commercial and Residential contractors licensure is required.
Separate licensure is required for plumbing, and asbestos abatement trades.
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Maine
Office of Licensing and Registration
#35 State House Station
Augusta, Maine 04333-0035
(207) 624-8603
No state license required for general contracting.
Licensure required for plumbing and electrical trades.
Companies selling home repair services must be registered with the state.
Maryland
Division of Occupational and Professional Licensing
500 N. Calvert St.
Baltimore, MD 21202
410-230-6270
License required for electrical, plumbing, HVACR, and home improvement.
Massachusetts
McCormack State Office Building
One Ashburton Place, Room 1301
Boston, MA 02108
617-727-3200
State license required for construction supervisors, and plumbing, electrical, landscape architecture, and home improvement trades.
Michigan
Bureau of Commercial Services
P.O. Box 30018
Lansing, MI 48909
517-241-9223
Residential contractors need to be licensed.
License required for plumbing and electrical trades.
Minnesota
Department of Commerce
85 7th Place East, Suite 500
St. Paul, MN 55101
651-296-6319
Residential contractors need to be licensed.
If you work in two or more trades, certain trades will require a license.
Call the state for details.
Mississippi
Mississippi State Board of Contractors'
2001 Airport Road, Suite 101
Jackson, MS 39208
601-354-6161
State license required for commercial jobs over $100,000, city or county jobs over $50,000.
Missouri
Business Services
P.O. Box 778
Jefferson City, MO 65102
573-751-4153
Licensing is done at the city level.
Contractors must register to do business with the Secretary of State.
Montana
Department of Labor and Industry
Employment Relations Division
P.O. Box 8011
Helena, MT 59604-8011
406-444-9586
Businesses must register with the Secretary of State.
No state license is required for general contracting.
Licensure is required for plumbing, electrical, and crane operating trades.
Nebraska
Nebraska Workforce Development
Department of Labor
5404 Cedar Street, 3rd Floor
Omaha, NE 68106
402-595-3183
Businesses must register with the Secretary of State.
No state license is required for general contracting, however, local licensure is needed in counties with populations over 100,000.
Licensure is required for the electrical trade.
Nevada
State of Nevada Contractors Board - Reno Office
9670 Gateway Drive, Suite 100
Reno, NV 89521
775-688-1141
Commercial and Residential Contractors License Required.
New Hampshire
Secretary of State
State House, Room 204
107 North Main Street
Concord, NH 03301-4989
603-217-3242
Licensure is required for certain specialty trades:
asbestos and lead abatement, electrical, and plumbing.
New Jersey
Office of the Attorney General
Department of Law and Public Safety
Division of Consumer Affairs
P.O. Box 45027
Newark, NJ 07101
973-504-6534
No state license is required for general contracting.
Licensure is required for plumbing and electrical contractors.
New homebuilders must register their business.
New Mexico
Regulation and Licensing Department
725 St. Michael's Drive
P.O. Box 25101
Santa Fe, NM 87504
505-827-7003
Commercial and Residential Contractors License Required.
New York
NYS Department of State
Division of Licensing Services
84 Holland Avenue
Albany, NY 12208-3490
518-474-4429
State license is required for Asbestos Abatement.
All other licensing is done at the local level.
Businesses must register with the Secretary of State.
North Carolina
Licensing Board for General Contractors
3739 National Drive, Suite 225
Raleigh, NC 27612
919-571-4183
A contractor's license is required for all jobs over $30,000.00.
Separate boards license plumbing and electrical trades.
North Dakota
Secretary of State
600 East Boulevard Avenue, Dept. 108
Bismarck, ND 58505
701-328-2900
A contractor's license is required for all jobs over $2,000.00.
Separate boards license plumbing and electrical trades.
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Ohio
Ohio Construction Industry Examining Board
6606 Tussing Road
P.O. Box 4009
Reynoldsburg, OH 43068
614-644-3493
Licensing is done at the local level.
Licenses required for plumbing, electrical, HVAC, heating, and hydronics trades.
Oklahoma
Oklahoma Department of Labor
Licensing Division
4001 N. Lincoln Blvd.
Oklahoma City, OK 73105
405-528-1500
888-269-5353
Resident electrical, mechanical, and plumbing contractors must be licensed.
There are special requirements for non-resident contractors. See website for details.
Oregon
Construction Contractors Board
P.O. Box 14140
Salem, OR 97309-5052
503-378-4610
Commercial and Residential Contractors License Required.
Pennsylvania
Department of General Services
18th and Herr Streets, Room 103
Harrisburg, PA 17125
717-783-7610
No state license required.
For public works projects, see General Services website.
Rhode Island
Contractor's Registration Board
One Capitol Hill
Providence, RI 02908
401-222-1268
A contractor's license is required for work on one to four-family dwellings.
Licenses are required for electrical, plumbing, and mechanical work.
South Carolina
South Carolina Department of Labor, Licensing, and Regulation
Synergy Business Park, Kingtree Building
P.O. Box 11329
Columbia, SC 29211
803-896-4300
A state license is required for commercial work over $5,000.00, and residential work over $200.00
South Dakota
Department of Commerce and Regulation
Professional and Occupational Licensing
118 West Capitol
Pierre, SD 57501
605-773-3178
No state license is required.
A license is required for asbestos, plumbing, electrical, and well drilling trades.
Tennessee
Department of Commerce and Insurance
Board for Licensing Contractors
500 James Robertson Parkway
Nashville, TN 37243-1150
615-741-8307
Commercial and Residential Contractors License Required.
Texas
Corporations Section
Office of the Secretary of State
P.O. Box 13697
Austin, TX 78711-3697
512-463-5555
No state license is required, however, general contractors must get permits at the local level.
Separate boards license HVAC, and plumbing trades.
Utah
Division of Occupational and Professional Licensing
P.O. Box 146741
Salt Lake City, UT 84114-6741
(801) 530-6628
Commercial and Residential Contractors License Required.
Vermont
Office of the Vermont Secretary of State
Licensing and Professional Regulation
26 Terrace Street Drawer 09
Montpelier, VT 05609-1101
802-828-2363
Licensure is required for asbestos, plumbing, and electrical trades.
Corporations must register with the Secretary of State.
Virginia
Department of Professional and Occupational Regulation
3600 West Broad Street
Richmond, VA 23230
804-367-8500
A contractor's license is required for all trades.
Separate boards license plumbing, electrical, HVAC, gas fitting, and asbestos trades.
Washington
Department of Labor & Industries
Specialty Compliance Services Division
P.O. Box 44400
Olympia, WA 98504-4400
360 902-5226
800-647-0982
A license is required for plumbing, and electrical trades.
Businesses must register with the Secretary of State.
West Virginia
Division of Labor
Contractor Licensing
State Capitol Complex
Bldg 6, Rm B749
Charleston, WV 25305
304-558-7890
fax 304-558-3797
A license is required for any compensated work that is $2,500.00 or more.
Wisconsin
State of Wisconsin
Department of Regulation and Licensing
PO Box 8935
Madison, WI 53708-8935
608-266-2112
Contractors are required to have the correct credentials for their trade.
Not all classifications require credentialing. For a list of credentials, see the website.
Wyoming
State of Wyoming
Department of Fire Prevention & Electrical Safety
Cheyenne, WY 82002
307-777-7288
Most licensing is done at the local level.
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