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California contractor license

Map Plumbing Inc

Map Plumbing Inc of Oakland holds California license 770531 (C16 Fire Protection, C36 Plumbing). The CSLB file dated Oct 28, 2026 lists it as active.1 It expires Oct 31, 2027.

Licensed 27 years, longer than 80% of 65 active Oakland plumbing contractors.

Active

Map Plumbing Inc, Oakland

License
770531
Class
C16 Fire Protection; C36 Plumbing
Expires
Oct 31, 2027
Bond
$25,000
Workers' comp
Insured to Dec 28, 2026

CSLB file dated Oct 28, 2026

From the CSLB file dated Oct 28, 2026. Not a consumer report; check the board before you hire.

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

Bond
$25,000American Contractors Indemnity Company, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredState Compensation Insurance Fund, from Dec 28, 2022, to Dec 28, 2026

What work does this license cover?

Issued Oct 21, 1999.

Which other Oakland businesses hold C16 Fire Protection?

California 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 28, 2026)
  2. Contractors State License Board (CSLB)