Doug's Plumbing, C-36 Plumbing Contractor in Martinez, CA
Doug's Plumbing operating as a sole owner holds an active California contractor license (CSLB #631076), valid through Oct 31, 2027. First issued in 1991, the license has been on the CSLB roster for 35 years. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and an exempt workers' compensation status (no employees on payroll). The business is based in Martinez, in Contra Costa County, California.
- License Number
- 631076
- Issued
- Oct 25, 1991
- Status
- CLEAR
- Expires
- Oct 31, 2027
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 201667
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Sep 16, 2025
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Doug's Plumbing licensed in California?
Yes. Doug's Plumbing holds California Contractors State License Board license number 631076, which is active and in good standing. The license was first issued on October 25, 1991. It is valid through October 31, 2027.
What does Doug's Plumbing specialize in?
Doug's Plumbing is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Doug's Plumbing headquartered?
Doug's Plumbing is headquartered at 1944 Eagle Lake Court, Martinez, CA 94553, in Contra Costa County, California.
Does Doug's Plumbing have an active surety bond on file with CSLB?
Yes. Doug's Plumbing has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Doug's Plumbing carry workers' compensation coverage?
Doug's Plumbing reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Doug's Plumbing's contractor license?
You can verify Doug's Plumbing's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=631076.
- License issuedOct 25, 1991
- Bond activeJan 1, 2023
- WC coverage startsSep 16, 2025
- License expiresOct 31, 2027
- Fred's Fast Plumbing#598066Oakley·B General Building Contractor
- Flynn Plumbing#600267Concord·C-36 Plumbing Contractor
- Central Service Plumbing Company#602758Crockett·C-36 Plumbing Contractor
- City Mechanical INC#622065Hercules·C-4 Boiler, Hot Water Heating and Steam Fitting Contractor
- Berry Gerald Plumbing#611418San Pablo·C-36 Plumbing Contractor
- F S Plumbing#612036Martinez·C-34 Pipeline Contractor
- Reddi-Rooter#613193Concord·C-36 Plumbing Contractor
- Mc Carthy Rich Plumbing#566929Clayton·C-36 Plumbing Contractor
Working a California job with Doug's Plumbing, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Doug's Plumbing? Claim or correct this profile