FREE VERIFICATION TOOL
Contractor License Lookup
Verify a California contractor license before hiring. Know what to check and red flags to avoid.
Contact UsVerify Before You Hire
Every contractor in California must hold a valid CSLB license. Use this guide to verify any contractor and know what to look for.
What to Check on the CSLB Website
- License status is "Active"
- Workers compensation insurance is current
- Bond is in place
- No unresolved complaints or disciplinary actions
- License classification matches your project type
- Business name matches who you are hiring
Red Flags to Watch For
- No license number provided or "license pending"
- Demands full payment upfront (California law limits deposits to $1,000 or 10%)
- No written contract or refuses to pull permits
- Pressure to start work immediately without a signed contract
- Cannot provide local references or proof of insurance
9Builders License
9Builders is fully licensed, bonded, and insured. Our CSLB license number is verifiable and our record is clean.
Get a Free Quote from 9BuildersThis tool links to the official California CSLB website. 9Builders is not affiliated with CSLB. Always verify independently.
Contractor License FAQ
Common questions about contractor licensing in California.
Yes. Any project over $500 in labor and materials requires a licensed contractor in California. Hiring an unlicensed contractor is illegal and voids most warranties.
A Class B license is a General Building Contractor license, which allows the holder to build or remodel residential and commercial structures.
You can file a complaint through the CSLB website at cslb.ca.gov. The CSLB investigates complaints and can take disciplinary action.