Hiring a contractor well is mostly paperwork done before work starts. The single most useful step is also the cheapest: check the contractor's license status yourself on the CSLB website before you sign anything. A license number shown on a directory card is stated by the business, not verified by the directory, and this site never presents it as verified.
Then get the scope in writing. A verbal quote and a written scope are different things, and most disputes come from the gap between them: what materials, what is included, what counts as an extra, and what the warranty covers.
Written-scope checklist
- Itemized scope: labor and materials, each described, not a single lump sum for a complex job.
- Who supplies fixtures, appliances, and finishes.
- How changes are priced once work has started.
- Timeline, payment schedule, and what happens if materials are delayed.
- Warranty terms in writing, including what is excluded.
- Cleanup and haul-away responsibility.
Red flags
- Pressure to sign today, or a price that is only valid if you decide on the spot.
- Refusal to put scope, price, or warranty in writing.
- A license number that cannot be found on the CSLB check, or a business that will not give one.
- Full payment demanded before work begins.
- No written answer to who handles permits, if permits are needed.
Questions people ask
What does CSLB stand for?
The California Contractors State License Board, the state body that licenses contractors. Its license check is the place to confirm a contractor's status before hiring.
Is this legal advice?
No. This page is general guidance for homeowners. For a specific dispute or contract question, talk to a qualified professional.
License verification pending — confirm with CSLB before hiring, unless a license number is stated by the business itself. Any license number shown is stated by the business, not verified by this directory.