Before you hire a California contractor, check the license number directly with the Contractors State License Board (CSLB), then compare the record with the name on the bid and the person you are dealing with. A number printed on a truck or proposal is a starting point, not proof that the license is current or belongs to the company offering the work. This guide explains the checks a homeowner can make and the questions the public record cannot answer.
The five-minute license check
1. Search the CSLB record
Use the official CSLB Check a License tool. Enter the license number shown on the advertisement or bid. You can also search by business name or personnel name. Check the status when you are choosing a contractor and again before signing, because records can change. Do not rely on a screenshot sent by the bidder.
2. Match the business and the people
Compare the CSLB business name and address of record with the company named in the written proposal and contract. Ask the person presenting the bid for a pocket license and photo identification. If a salesperson is involved, ask whether the person has a CSLB Home Improvement Salesperson registration and verify it through the same official search tool. A mismatch needs an explanation before you sign; a license number on a document alone does not establish that the bidder is authorised to use it. CSLB’s hiring guidance recommends these identity checks.
3. Read the classification against the proposed scope
A license classification describes the type of contracting work for which a business is licensed. The CSLB classification directory distinguishes a Class B General Building contractor from specialty classifications. The classification label alone does not answer every question about a proposed specialty scope. The rules for a particular prime contract, subcontract, or trade combination depend on the scope and Business and Professions Code section 7057. Ask who will perform regulated specialty work and verify any separate specialty contractor when relevant. For a disputed scope, confirm the classification with CSLB or qualified counsel before relying on a general description.
4. Check the bond and insurance information separately
Review the bond and workers’ compensation fields and any history links shown in the CSLB record. A contractor license bond is not the same as a guarantee that every loss or defect will be paid; CSLB describes its purpose and limits in its bond requirements. Ask for current insurance documents and verify coverage with the carrier or agent for your project. Workers’ compensation and commercial general liability serve different purposes, and a CSLB record does not replace a coverage confirmation. CSLB’s consumer guide explains these distinctions.
5. Compare written bids on the same scope
Request bids that identify the contracting business, license number, work included, major exclusions, allowances and payment terms. Compare the same plans and specifications across bidders. A surprisingly low price can reflect a different scope, an omitted item or a mistake. Check the applicable contract requirements before paying a deposit. CSLB recommends getting at least three written bids for comparison.
What the lookup cannot tell you
Whether the listed qualifier is actually supervising this job. A qualifier is the person who meets the experience and examination requirements for a classification. CSLB says that person is responsible for the firm’s construction operations. A corporation can be qualified by a Responsible Managing Officer (RMO) or a Responsible Managing Employee (RME). A public record can identify an associated person and status; it cannot show how that person supervises day-to-day work at your property. Ask who will make technical decisions, review workmanship and be available when problems arise. An RMO title alone neither proves nor disproves meaningful involvement. See CSLB’s qualifier explanation and its description of supervision and control.
Who will perform each trade. A Class B General Building contractor may contract for a qualifying multi-trade project and may arrange for an appropriately licensed specialty contractor to perform particular work under the conditions in section 7057. That does not mean the general contractor personally holds every specialty classification or will self-perform each task. Ask for the proposed trade breakdown and the business name and licence number of any specialty subcontractor, then check those records too. Whether a particular contract fits the rule depends on its actual scope.
Whether coverage will be in force when work happens. A bond, workers’ compensation, and commercial general liability insurance are different protections. A certificate or public entry gives information as of a point in time; it does not replace confirmation of the policy and relevant dates with the issuing carrier or agent. Ask what workers and activities are covered and how subcontractors will document their own coverage. CSLB recommends verifying insurance with the carrier or agency in its hiring guide.
An active record also does not certify the quality of a proposed design, establish that a particular permit has been issued, or promise a result on your project. Ask for project-specific references and inspect permit and inspection records with the issuing building department where applicable. Keep the signed scope and change orders in writing.
Check Cali Builders the same way
Cali Builders & Construction Inc. lists CSLB license #1051566, Class B General Building. Please verify the current record independently through CSLB’s search and ask us how a proposed project would be scoped and staffed. For a renovation, addition or ADU conversation, call (800) 863-0011 or use our contact form after hours.
Reviewed October 18, 2026. This homeowner checklist is general information; current CSLB records, the actual contract and project circumstances control. It is not a legal opinion on any contractor’s authority to perform a specific scope.