State-by-State Contractor License Verification Links
Always verify a contractor's license directly with the official state or local government database before signing a contract. Look for an "Active" status and verify they hold the correct specific license (GC, Electrical, Plumbing, or HVAC).
Arkansas
Colorado
https://dpo.colorado.gov/
Electrical/Plumbing. GCs check local county.
Connecticut
Delaware
Illinois
https://dph.illinois.gov/
Plumbers. GCs/Electrical/HVAC check local city.
Indiana
https://www.in.gov/pla/
Plumbers. GCs/Electrical/HVAC check local.
Kansas
(Check local city/county building departments)
Kentucky
Louisiana
Maryland
Michigan
Mississippi
Missouri
(Check local city/county building departments)
Montana
Nebraska
https://electrical.nebraska.gov/
Electrical. Others check local.
New Hampshire
New Jersey
New Mexico
New York
(Check local city/county departments, e.g., NYC Dept of Buildings)
North Carolina
https://nclbgc.org/
GCs. Separate boards for NC Electrical and Plumbing/HVAC.
North Dakota
Ohio
https://com.ohio.gov/
Commercial. Residential check local.
Oklahoma
Pennsylvania
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
https://www.tdlr.texas.gov/LicenseSearch/
Electrical/HVAC and TSBPE Plumbing.
Vermont
Washington
West Virginia
Wisconsin
Wyoming
https://wsfm.wyo.gov/
Electrical. Others check local.