How to Verify a CA Contractor's License Before You Hire
Before you let anyone touch your garage door — especially the springs — spend two minutes checking their California contractor license. It's free, it's public, and it's the single best way to avoid an unlicensed operator on your property.
- Free public lookup
- Takes about 2 minutes
- Run by the State of California
What a CSLB license actually verifies
The Contractors State License Board (CSLB) is the state agency that licenses and regulates California's construction trades, including garage doors. A contractor installing, modifying, or repairing garage doors, openers, and related hardware should hold a C-61/D-28 (Doors, Gates and Activating Devices) classification — the license category that covers this work. California law requires it for any garage door job where labor and materials exceed $500; a general contractor's license alone doesn't automatically cover it.
A CSLB license isn't just a formality. To hold one, a contractor has passed a law exam, carries a required bond, and is required to carry workers' compensation insurance if they have employees. All of that disappears the moment you hire someone unlicensed.
Why it matters if you skip this step
No recourse if the work goes wrong
Licensed contractors are bonded, which gives you a path to recover money for bad work. Hire someone unlicensed and that protection doesn't exist — it's your word against theirs.
Liability if someone gets hurt
Garage door springs store enormous energy and have caused serious injuries when handled by untrained hands. If an unlicensed worker is hurt on your property and has no workers' comp coverage, your homeowner's insurance can end up on the hook.
No CSLB complaint process
Licensed contractors answer to the CSLB. If a job goes badly, you can file a complaint and the board can investigate. There's no equivalent process for unlicensed work.
Permits and inspections get harder
Some garage door work, especially full installs, can involve a permit. Unlicensed work can complicate getting one, and can create problems later if you sell the home and a buyer's inspector asks who did the work.
How to check a contractor's license — step by step
- Go to the CSLB's official license lookup tool: cslb.ca.gov — Check a License.
- Search by license number if the contractor gave you one, or by business/contractor name.
- Confirm the license status reads Active — not expired, suspended, or revoked.
- Check that the classification list includes C-61/D-28. A license with only, say, a general-building or unrelated specialty classification doesn't cover doors, gates, and activating devices.
- Confirm the bond and workers' compensation status both show as current.
- Scroll to the bottom of the license detail page and check for any disciplinary actions, legal actions, or complaint history.
- Confirm the business name on the license matches who's actually showing up to do the work.
Red flags that mean walk away
Won't give a license number
A licensed contractor gives their license number without hesitation — it's public information. Hesitation or a refusal is a clear warning sign.
Cash-only, no written estimate
Licensed contractors put estimates in writing. A cash-only, handshake-only arrangement removes your paper trail if something goes wrong.
License doesn't match the trade
A license that's active but covers an unrelated trade — say, painting or drywall — doesn't qualify someone to work on a spring-loaded garage door.
Why we point you here instead of vouching for anyone
We're a free referral resource, not a contractor. Napa Valley Garage Door is not a licensed garage door business and doesn't hold or issue any contractor license itself. Contractors in our network operate independently — we don't perform any work ourselves, and we can't warranty or guarantee it. We ask the contractors we work with to represent that they're licensed, but we don't independently confirm it for every job, which is exactly why this page exists: the CSLB check above takes two minutes and puts the answer in your own hands.
Frequently asked questions
Is checking a CSLB license really free?
Yes. The CSLB's online license lookup is a free public tool run by the State of California — no account or payment required.
What license classification do garage door contractors need in California?
C-61/D-28 (Doors, Gates and Activating Devices) is the classification that covers installing, modifying, or repairing garage doors, openers, and related hardware, required for jobs where labor and materials exceed $500. A license without that classification doesn't authorize someone to do this work.
What if the license shows as "expired" instead of "suspended"?
Either way, treat it as not currently licensed to work. An expired license means the contractor hasn't renewed — ask when it lapsed and don't move forward until it's active again.
Does napavalleygaragedoor.com hold a CSLB license?
No. We're a free referral resource, not a licensed contractor. We connect Napa Valley homeowners with local garage door pros, who handle the work and estimates directly — use the steps above to confirm their CSLB license yourself before you hire.
Can I still get scammed by someone with an active license?
Verifying a license lowers your risk significantly but isn't a total guarantee. Still get a written estimate, check that the classification matches the work, and trust your judgment if something feels off — see our repair scams guide for more.