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California contractor license

C5 Plumbing And Piping Services LLC

C5 Plumbing And Piping Services LLC of Stockton holds California license 580907 (A General Engineering, C16 Fire Protection, C36 Plumbing). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Sep 30, 2028.

Licensed 36 years, longer than 81% of 38 active Stockton plumbing contractors.

Active

C5 Plumbing And Piping Services LLC, Stockton

  • Board action on file.
License
580907
Class
A General Engineering; C16 Fire Protection; C36 Plumbing
Expires
Sep 30, 2028
Bond
$25,000
Workers' comp
Insured to Oct 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?

From the CSLB file dated Nov 1, 2026. Confirm with the board. CSLB license check

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

Bond
$25,000Jet Insurance Company, from Sep 8, 2026, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredContinental Insurance Company (The), from Jun 22, 2026, to Oct 1, 2027

Who is on this license?

Officer
Nate S. RupertSince Jul 13, 2020
LLC manager
Caresa D. CamposSince Sep 8, 2026

What work does this license cover?

Issued Nov 16, 1989. Reissued Sep 8, 2026.

Which other Stockton businesses hold A General Engineering?

California plumbing contractorsGeneral Contractors in StocktonCalifornia general 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)