Contractor License Proof

Mast Plumbing Services

Licensed

Verified against CSLB on · View on CSLB

License details

License number
1133882
Status
Active
Classifications
C-36 · Plumbing
Contractor bond
$25,000
Workers' comp
ExemptNo employees — not a red flag.
License term on file
March 4, 2025 – March 31, 2027

Business

  • 3670 MOUNTAIN RANCH RD, San Andreas, CA 95249Calaveras County

Are you Mast Plumbing Services? Claim this listing to manage it.

Claim this listing

Request a free quote

Tell us about your project and we'll connect you with licensed, verified California contractors.

By submitting, you agree we may share your request with relevant licensed contractors to help with your project. See our Privacy Policy.

Other Plumbing contractors in San Andreas

Mast & Sons Plumbing

C-36 · San Andreas, CA

Licensed

Verified June 17, 2026 · Bonded

Mast Duane

C-36 · San Andreas, CA

Licensed

Verified June 17, 2026 · Bonded

Ryan's Plumbing

C-36 · San Andreas, CA

Licensed

Verified June 17, 2026 · Bonded

Murphy Pat Plumbing and Backhoe Inc

C-36 · San Andreas, CA

Licensed

Verified June 17, 2026 · Bonded

Overmier Clifford E

C-36 · San Andreas, CA

Licensed

Verified June 17, 2026 · Bonded

Jasper Curtis

C-36 · San Andreas, CA

Licensed

Verified June 17, 2026 · Bonded

Browse all Plumbing contractors in San Andreas

What to check next

How to verify a California contractor licenseRed flags when hiring a contractorLicensed vs. bonded vs. insured — what's the difference?Risks of hiring an unlicensed contractor

Frequently asked questions

Is Mast Plumbing Services licensed in California?

Yes. Mast Plumbing Services holds an active California state contractor license (CSLB #1133882), verified against the CSLB public record on June 17, 2026.

What is Mast Plumbing Services's CSLB license number?

Mast Plumbing Services's California contractor license number is 1133882. Look that number up with the CSLB "Check a License" tool to confirm its current status against the public record yourself.

What kind of work is Mast Plumbing Services licensed for?

Mast Plumbing Services is classified under Plumbing (C-36) by the CSLB.

How do I verify Mast Plumbing Services's license myself?

Look up license #1133882 with the CSLB "Check a License" tool and compare the status, bond, and workers' compensation details against what's shown on this page. This page reflects the CSLB public record as of June 17, 2026.

Verify it yourself: How to verify a California contractor license · Look up #1133882 on CSLB

Checking more than one contractor? Verify another license.Verify a license

See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.