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California contractor license
Ja Plumbing Inc
Ja Plumbing Inc of San Francisco holds California license 845259 (C36 Plumbing). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Aug 31, 2028.
Licensed 22 years, longer than 73% of 252 active San Francisco plumbing contractors.
Active
Ja Plumbing Inc, San Francisco
- License
- 845259
- Class
- C36 Plumbing
- Expires
- Aug 31, 2028
- Bond
- $25,000
- Workers' comp
- Insured to Jul 13, 2027
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
- $25,000Atlantic Specialty Insurance Company, from Jan 22, 2026, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredMarkel Insurance Company, from Jul 13, 2024, to Jul 13, 2027
Who is on this license?
- Responsible managing officer, CEO and president
- Yim T. YoungSince Aug 24, 2004
What work does this license cover?
Issued Aug 24, 2004.
Which other San Francisco businesses hold C36 Plumbing?
- Chris Plumbing Bay Area Services CorpLicensed since 2004
- Y C Plumbing IncLicensed since 2004
- Urgent Rooter And Plumbing IncLicensed since 2005
- B W Company IncLicensed since 2006
- Jin's Plumbing IncLicensed since 2006
Plumbing Contractors in San FranciscoCalifornia plumbing contractors
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, Oct 30, 2026)
- Contractors State License Board (CSLB)