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California contractor license

Wong Kim Plumbing Inc

Wong Kim Plumbing Inc of San Gabriel holds California license 752619 (C36 Plumbing). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Aug 31, 2028.

Licensed 28 years, longer than 82% of 9,564 active California plumbing contractors.

Active

Wong Kim Plumbing Inc, San Gabriel

License
752619
Class
C36 Plumbing
Expires
Aug 31, 2028
Bond
$25,000
Workers' comp
Insured to Apr 1, 2027

CSLB file dated Nov 1, 2026

From the CSLB file dated Nov 1, 2026. Not a consumer report; check the board before you hire.

Has the board taken action on this license?

None in the CSLB file dated Nov 1, 2026. Confirm with the board: CSLB license check

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

Bond
$25,000Nationwide Mutual Insurance Company, from Feb 7, 2025, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredTechnology Insurance Company Inc, from Apr 1, 2026, to Apr 1, 2027

Who is on this license?

Officer
Wing S. WongSince Aug 4, 1998
Responsible managing officer
Timmond WongSince Jul 27, 2020

What work does this license cover?

Issued Aug 4, 1998.

Which other San Gabriel businesses hold C36 Plumbing?

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, Nov 1, 2026)
  2. Contractors State License Board (CSLB)