Zak Plumbing Co
Verified against CSLB on · View on CSLB
License details
- License number
- 654608
- Classifications
- License term on file
- September 22, 1992 – September 24, 2026
Business
- (415) 383 6317 (CSLB public record)
- P O BOX 281, Mill Valley, CA 94942Marin County
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What to check next
Frequently asked questions
Is Zak Plumbing Co licensed in California?
Yes. Zak Plumbing Co holds an active California state contractor license (CSLB #654608), verified against the CSLB public record on June 17, 2026.
What is Zak Plumbing Co's CSLB license number?
Zak Plumbing Co's California contractor license number is 654608. 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 Zak Plumbing Co licensed for?
Zak Plumbing Co is classified under Plumbing (C-36) by the CSLB.
How do I verify Zak Plumbing Co's license myself?
Look up license #654608 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 #654608 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.