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State files updated Oct 30, 2026
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California contractor license

Lots Plumbing Inc

Lots Plumbing Inc of Fullerton holds California license 945178 (C36 Plumbing). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Nov 30, 2027.

Licensed 16 years, longer than 63% of 38 active Fullerton plumbing contractors.

Active

Lots Plumbing Inc, Fullerton

  • Workers' comp on file ended Oct 17, 2026.
License
945178
Class
C36 Plumbing
Expires
Nov 30, 2027
Bond
$25,000
Workers' comp
Insured to Oct 17, 2026

CSLB file dated Oct 30, 2026

From the CSLB file dated Oct 30, 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 Oct 30, 2026. Confirm with the board: CSLB license check

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

Bond
$25,000American Contractors Indemnity Company, from Oct 15, 2025, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredMid-Century Insurance Company, from Oct 17, 2023, to Oct 17, 2026

Who is on this license?

Officer
Binh SiphengphoneSince Nov 14, 2019
Responsible managing officer, CEO and president
Bounloth B. SiphengphoneSince Apr 5, 2010

What work does this license cover?

Issued Apr 5, 2010. Reissued Nov 14, 2019.

Which other Fullerton 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, Oct 30, 2026)
  2. Contractors State License Board (CSLB)