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California contractor license

K & S Mechanical Inc

K & S Mechanical Inc of Vacaville holds California license 979110 (C20 Warm-Air Heating, Ventilating and Air-Conditioning, C43 Sheet Metal). The CSLB file dated Oct 26, 2026 lists it as active.1 It expires Dec 31, 2026.

Active

K & S Mechanical Inc, Vacaville

License
979110
Class
C20 Warm-Air Heating, Ventilating and Air-Conditioning; C43 Sheet Metal
Expires
Dec 31, 2026
Bond
$25,000
Workers' comp
Insured to Feb 10, 2027

CSLB file dated Oct 26, 2026

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

Issued Dec 4, 2012.

Bond
$25,000Atlantic Specialty Insurance Company, from Jul 24, 2026, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredWCF National Insurance Company, from Feb 10, 2026, to Feb 10, 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)