Contractor License Proof

Proper Plumbing Services LLC

Licensed

Verified against CSLB on · View on CSLB

License details

License number
1100951
Status
Active
Classifications
C-36 · Plumbing
Contractor bond
$25,000
Workers' comp
ExemptNo employees — not a red flag.
License term on file
January 30, 2023 – April 30, 2028

Business

  • (650) 580 3846 (CSLB public record)
  • 21617 GAIL DR, Castro Valley, CA 94546Alameda County

Are you Proper Plumbing Services LLC? 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 Castro Valley

Baek Construction

C-36 · Castro Valley, CA

Licensed

Verified June 17, 2026 · Bonded

Harris Water Heaters Inc

C-36 · Castro Valley, CA

Licensed

Verified June 17, 2026 · Bonded

Gaxl General Construction Inc

C-36 · Castro Valley, CA

Licensed

Verified June 17, 2026 · Bonded

AAA Plumbing & Remodeling Inc

C-36 · Castro Valley, CA

Licensed

Verified June 17, 2026 · Bonded

Blu Pipe Plumbing LLC

C-36 · Castro Valley, CA

Licensed

Verified June 17, 2026 · Bonded

Garibay Olga Plumbing

C-36 · Castro Valley, CA

Licensed

Verified June 17, 2026 · Bonded

Browse all Plumbing contractors in Castro Valley

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 Proper Plumbing Services LLC licensed in California?

Yes. Proper Plumbing Services LLC holds an active California state contractor license (CSLB #1100951), verified against the CSLB public record on June 17, 2026.

What is Proper Plumbing Services LLC's CSLB license number?

Proper Plumbing Services LLC's California contractor license number is 1100951. 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 Proper Plumbing Services LLC licensed for?

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

How do I verify Proper Plumbing Services LLC's license myself?

Look up license #1100951 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 #1100951 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.