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California contractor license

Weise Gerhard Plumbing Inc

Weise Gerhard Plumbing Inc of Los Angeles holds California license 318996 (C36 Plumbing). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Jun 30, 2028.

Licensed 50 years, longer than 97% of 334 active Los Angeles plumbing contractors.

Active

Weise Gerhard Plumbing Inc, Los Angeles

License
318996
Class
C36 Plumbing
Expires
Jun 30, 2028
Bond
$25,000
Workers' comp
Insured to Sep 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
$25,000American Contractors Indemnity Company, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredPreferred Employers Insurance Company, from Sep 1, 2025, to Sep 1, 2027

Who is on this license?

Officer
Karen G. WeiseSince Jun 20, 2006
Responsible managing officer
Mark G. WeiseSince Oct 31, 1995

What work does this license cover?

Issued May 5, 1976. Reissued Jun 20, 2006.

Which other Los Angeles businesses hold C36 Plumbing?

Plumbing Contractors in Los AngelesCalifornia 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)