How Do I Verify a Los Angeles Contractor's License?
In 1-2 minutes and $0 cost: go to cslb.ca.gov and use the free Check a License lookup — the cheapest insurance in any $50k-$500k+ remodel process. Verify any Los Angeles contractor's license at the California Contractors State License Board (CSLB) website. You can search by license number, business name, or personnel name. The lookup returns license status (active, expired, suspended), classification (for example, B for General Building), bond status, workers compensation status, and any recent complaint or disciplinary history.
Step-by-Step: Using CSLB Check a License
Go to cslb.ca.gov and click Check a License (or go directly to the Check a License page from the homepage). Enter the license number if you have it (format is a numeric string, e.g., #1133368), or search by the business name or the qualifying personnel name. Review the returned record for License Status (should say Active), Business Information, Classifications held, Bonding, Workers Compensation coverage, and any Actions or Judgments listed at the bottom of the record. If the license is not Active, do not sign the contract.
What Each Line on the License Record Means
License Status tells you whether the license is currently valid to operate. Classification tells you what type of work the license authorizes: B is General Building (most residential remodel work), C-XX are specialty classifications (electrical is C-10, plumbing is C-36, and so on). Bonding confirms the contractor holds the statutory contractor's bond required by the state. Workers Compensation confirms coverage for their employees; a contractor without WC coverage exposes you to liability if a worker is injured on your property. Actions list any recent citations, fines, or disciplinary actions.
What to Also Verify Beyond the CSLB Record
Beyond the CSLB lookup, ask the contractor to email you a current Certificate of Insurance directly from their insurance broker (not a photo of an old certificate). This should show general liability limits and workers comp coverage, and should list you as a certificate holder for the project. Ask for 3-5 recent references at similar scope. Ask which permit authorities they regularly work with (LADBS, City of Beverly Hills BSED, City of Santa Monica CPCD, or applicable separate-city departments) so you know they understand your jurisdiction.
Red Flags to Watch For
Red flags at the CSLB record level: expired or suspended license, missing workers comp, recent unresolved citations. Red flags at the contract level: asking for more than the 10%-or-$1,000-cap statutory maximum down payment, which is the statutory limit under California law for home improvement contracts; being asked to pay in cash; contracts without a written schedule or scope; a business name that does not match the license record. Any of these should stop the conversation until resolved.
Why This Matters for LA Homeowners
Using an unlicensed contractor in California is illegal for both the contractor and (in practical terms) exposes the homeowner to significant risk: no bond to recover against if the job fails, no workers comp protection if a worker is hurt, and permit applications that get rejected if the applicant is not properly licensed. LA has thousands of licensed general contractors across a range of specialties; there is no legitimate reason to hire an unlicensed one. The 1-2 minute CSLB lookup is the cheapest insurance in the entire remodel process.
Frequently asked follow-ups
What license classification do I need for a home remodel? +
For most residential remodels the general contractor should hold a B (General Building) classification. Specialty trade subs typically hold C-classifications matching their trade (C-10 electrical, C-36 plumbing, C-20 HVAC, etc.).
How can I confirm workers compensation coverage? +
The CSLB record shows WC status. For extra confirmation, ask the contractor to have their broker email you a current certificate showing WC coverage in effect for the project dates.
What is the maximum down payment allowed in California? +
Under California home improvement contract law, the maximum down payment is 10% of the contract price or the $1,000-cap statutory maximum, whichever is less. Asking for more is a legal red flag.
What if the contractor works under a slightly different name? +
The business name on the contract should match the name on the CSLB record. Small punctuation differences may be acceptable; a completely different name is not. Ask for clarification in writing before signing.
What is Design Onn Point's license number? +
CSLB #1133368. You can verify it directly at cslb.ca.gov by entering that number in the Check a License lookup.
Do specialty trades (plumber, electrician) need their own license? +
Yes. Each specialty trade contractor should hold the appropriate C-classification license. A general contractor with a B classification can hire licensed specialty subs to perform trade work under the general permit.
Want the same answer applied to your specific project? Onn personally reviews every inquiry.
Written by Onn Cohen-Meguri, founder and designer at Design Onn Point. Onn has spent 20+ years designing and building in Los Angeles. CSLB #1133368.
Published .