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State files updated Oct 27, 2026
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California contractor license

Swinerton Builders

Swinerton Builders of Concord holds California license 92 (A General Engineering, ASB Asbestos Certification, B General Building, C2 Insulation and Acoustical, C4 Boiler, Hot Water Heating and Steam Fitting, C5 Framing and Rough Carpentry, C6 Cabinet, Millwork and Finish Carpentry, C8 Concrete, C9 Drywall, C10 Electrical, C12 Earthwork and Paving, C16 Fire Protection, C21 Building Moving/Demolition, C29 Masonry, C33 Painting and Decorating, C35 Lathing and Plastering, C39 Roofing, C50 Reinforcing Steel, D28 Doors, Gates and Activated Barrier Systems). The CSLB file dated Oct 26, 2026 lists it as active.1 It expires Aug 31, 2027.

Active

Swinerton Builders, Concord

License
92
Class
A General Engineering; ASB Asbestos Certification; B General Building; C2 Insulation and Acoustical; C4 Boiler, Hot Water Heating and Steam Fitting; C5 Framing and Rough Carpentry; C6 Cabinet, Millwork and Finish Carpentry; C8 Concrete; C9 Drywall; C10 Electrical; C12 Earthwork and Paving; C16 Fire Protection; C21 Building Moving/Demolition; C29 Masonry; C33 Painting and Decorating; C35 Lathing and Plastering; C39 Roofing; C50 Reinforcing Steel; D28 Doors, Gates and Activated Barrier Systems
Expires
Aug 31, 2027
Bond
$25,000
Workers' comp
Insured to Aug 1, 2027

CSLB file dated Oct 26, 2026

What bond, insurance and workers' comp are on file?

Issued Oct 1, 1929.

Bond
$25,000Liberty Mutual Insurance Company, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredFirst Liberty Insurance Corporation, from Aug 1, 2026, to Aug 1, 2027

What work does this license cover?

What should you check before hiring?

What to ask before you hire

  1. Get the license number in writing. The name on the license should match the name on your contract and invoice.
  2. Check the class covers the job. A license for one trade doesn't cover another. California license classes
  3. Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
  4. Ask who will be on site. If a crew works on your property, ask for proof of workers' comp. An exemption means the contractor told the CSLB it has no employees.
  5. Put it in a written contract: license number, price, start date and payment schedule. Check the license again on the day you sign.

If the license is lapsed

  1. Don't sign or pay a deposit until the CSLB shows the license active again.
  2. Ask the contractor why. For a bond or insurance lapse, ask for proof that the new bond or policy was filed with the CSLB, then check again.
  3. If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
  4. Check another contractor. California license lookup

Sources

  1. CSLB License Master (cslb.ca.gov, Oct 26, 2026)
  2. Contractors State License Board (CSLB)