Contractor License Proof

Mast & Sons Plumbing

Licensed

Verified against CSLB on · View on CSLB

License details

License number
1027861
Status
Active
Classifications
C-36 · Plumbing
Contractor bond
$25,000
Workers' comp
ExemptNo employees — not a red flag.
License term on file
June 14, 2017 – June 30, 2027

Business

  • (209) 663 5043 (CSLB public record)
  • 3670 MOUNTAIN RANCH RD, San Andreas, CA 95249Calaveras County

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Frequently asked questions

Is Mast & Sons Plumbing licensed in California?

Yes. Mast & Sons Plumbing holds an active California state contractor license (CSLB #1027861), verified against the CSLB public record on June 17, 2026.

What is Mast & Sons Plumbing's CSLB license number?

Mast & Sons Plumbing's California contractor license number is 1027861. 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 & Sons Plumbing licensed for?

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

How do I verify Mast & Sons Plumbing's license myself?

Look up license #1027861 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 #1027861 on CSLB

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