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California contractor license

Gamboa Mark Construction LLC

Gamboa Mark Construction LLC of Anaheim holds California license 826496 (B General Building, C10 Electrical, C36 Plumbing). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Aug 31, 2027.

Licensed 23 years, longer than 75% of 164 active Anaheim electrical contractors.

Active

Gamboa Mark Construction LLC, Anaheim

License
826496
Class
B General Building; C10 Electrical; C36 Plumbing
Expires
Aug 31, 2027
Bond
$25,000
Workers' comp
Insured to Mar 1, 2027

CSLB file dated Oct 29, 2026

From the CSLB file dated Oct 29, 2026. Not a consumer report; check the board before you hire.

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

Bond
$25,000Western Surety Company, from Jul 27, 2024, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredEndurance Assurance Corporation, from Mar 1, 2026, to Mar 1, 2027

Who is on this license?

Responsible managing member
Mark A. GamboaSince Oct 23, 2003

What work does this license cover?

Issued Oct 23, 2003. Reissued Aug 24, 2017.

Which other Anaheim businesses hold B General Building?

Electrical Contractors in AnaheimCalifornia electrical contractorsPlumbing Contractors in AnaheimCalifornia plumbing contractors

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 on file 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 29, 2026)
  2. Contractors State License Board (CSLB)