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California contractor license
Concord Plumbing Co Inc
Concord Plumbing Co Inc of Concord holds California license 1089123 (C36 Plumbing). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Jan 31, 2028.
Active
Concord Plumbing Co Inc, Concord
- License
- 1089123
- Class
- C36 Plumbing
- Expires
- Jan 31, 2028
- Bond
- $25,000
- Workers' comp
- Insured to Jan 14, 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
- $25,000Merchants Bonding Company (Mutual), from Jan 16, 2026, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredGreat American Alliance Insurance Company, from Jan 14, 2026, to Jan 14, 2027
Who is on this license?
- Responsible managing officer, CEO and president
- Marco A. BecerraSince Mar 28, 2022
What work does this license cover?
Issued Mar 28, 2022. Reissued Jan 16, 2026.
Which other Concord businesses hold C36 Plumbing?
- Diamond Plumbing And RooterLicensed since 2016
- Warranted Plumbing ServicesLicensed since 2019
- Sullivan Brother Plumber IncLicensed since 2022
- JNJ Rooter And Plumbing LLCLicensed since 2023
- Prestige Plumbing And Rooter IncLicensed since 2024
What should you check before hiring?
What to ask before you hire
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. California license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- 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.
- 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
- Don't sign or pay a deposit until the CSLB shows the license active again.
- 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.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
- Check another contractor. California license lookup
Sources
- CSLB License Master (cslb.ca.gov, Nov 1, 2026)
- Contractors State License Board (CSLB)