Mast & Sons Plumbing
Mast & Sons Plumbing is an active, licensed contractor operating in San Andreas, CA. Operating under a California contractor license established in 2017. They hold a C-36 Plumbing Contractor license. They currently maintain a workers' compensation exemption. No disciplinary actions have been recorded against this license.
License Information
- License Number
- 1027861
- Status
- Active
- Classification(s)
- C-36: Plumbing Contractor
- Tenure
- Licensed since 2017 (8 years)
- Issue Date
- June 14, 2017
- Expiration Date
- June 30, 2027
- Disciplinary Record
- No Disciplinary Actions
Bond & Insurance
- Workers’ Compensation
- Exempt
A contractor’s bond protects consumers up to the bond amount if the contractor fails to fulfill contractual obligations or violates CSLB regulations.
Workers’ compensation insurance protects homeowners from liability if a contractor’s employee is injured on the job site.
Location
- Address
- 3670 MOUNTAIN RANCH RD
- City
- San Andreas, CA
- ZIP Code
- 95249
- Phone
- (209) 663-5043
About This License Type
C-36: Plumbing Contractor
Provides means for a supply of safe water and proper disposal of fluid waste, including piping, storage tanks, venting, gas appliances and connections, water and gas piping, water heating equipment including solar, and health and safety devices such as backflow preventers and gas earthquake valves.
Not authorized: Does not include forced warm-air units (see C-20).
Verify on Official CSLB Website
License data sourced from the California Contractors State License Board. Last data update: February 20, 2026.