Contractor License Lookup — CSLB License Check

Frequently Asked Questions

How do I look up a contractor’s license in California?

Enter the contractor’s 7-digit CSLB license number above for instant results. You’ll see their license status, classification, bond, workers’ compensation, and complaint history — all pulled from the California Contractors State License Board public database.

How do I verify a contractor license in California?

Enter the contractor’s 7-digit license number above to verify their contractor license instantly. You’ll see current CSLB license status, bond, workers’ comp, and complaint history pulled directly from public records.

What does “Active” license status mean?

An active license means the contractor is currently authorized to perform work in California. Their license is not expired, suspended, or revoked. An active license with a current bond and workers’ comp on file is the minimum requirement before hiring any contractor.

What is a Class B contractor license?

Class B is a General Building contractor license. This is the classification required for ADU construction, home additions, and most residential building projects. Class A is General Engineering (roads, bridges). Class C covers specialty trades like electrical (C-10), plumbing (C-36), and roofing (C-39).

What is the CSLB contractor bond?

California requires licensed contractors to carry a $25,000 surety bond. This bond provides limited financial protection if the contractor abandons a project or performs defective work. The bond does not cover the full contract value — it caps at $25,000 regardless of your project cost.

What does workers’ compensation “Exempt” mean?

A workers’ comp exemption means the contractor is a sole proprietor with no employees. California law allows sole proprietors to file an exemption instead of carrying a workers’ comp policy. If the contractor hires subcontractors or employees, the exemption is no longer valid.

How do I check for contractor complaints?

CSLB tracks complaints, legal actions, and disciplinary history for every licensed contractor. Our lookup tool shows the complaint status. If complaints exist, the CSLB detail page will show specific actions. Note that CSLB restricts disclosure of some complaint data under Business and Professions Code Section 7124.6.

Can I look up a contractor by name instead of license number?

Yes — enter the business name in the search field above. Name search checks our verified builder directory first. For the most accurate results, use the 7-digit license number, which every legitimate contractor should provide on their website, business card, and contract.

What if the contractor isn’t licensed?

Performing construction work without a license is a misdemeanor in California under Business and Professions Code Section 7028. If a contractor cannot provide a valid CSLB license number, do not hire them. Unlicensed contractors have no bond, no workers’ comp, and no regulatory oversight. Use this free CSLB contractor lookup to check any California contractor before you hire.

How often is this license data updated?

License data is pulled directly from CSLB public records at the time of your search. Results are cached for 24 hours. VerifiedADU’s listed builders are reverified every 12 hours — if a builder’s license status changes, their listing is updated or removed automatically.

What does “Verified on VerifiedADU” mean?

If a contractor appears in our directory, they have passed a multi-point verification: active CSLB license, bond on file, workers’ comp current, and no unresolved complaints. This verification runs automatically every 12 hours. Contractors who lose their license or accumulate complaints are removed.