Y K Mason & Sons Inc
Verified against CSLB on · View on CSLB
License details
- License number
- 1001324
- Classifications
- B · General BuildingD-39 · Scaffolding
- License term on file
- February 17, 2015 – May 31, 2027
Business
- (415) 467 1788 (CSLB public record)
- P O BOX 34246, San Francisco, CA 94134San Francisco County
Are you Y K Mason & Sons Inc? Claim this listing to manage it.
Claim this listingRequest a free quote
Tell us about your project and we'll connect you with licensed, verified California contractors.
Other General Building contractors in San Francisco
Artane Construction
B · San Francisco, CA
Verified June 17, 2026 · Bonded
Builda Global Building Company
B · San Francisco, CA
Verified June 17, 2026 · Bonded
Engel Thomas
B · San Francisco, CA
Verified June 17, 2026 · Bonded
Deep Elm Construction LLC
B · San Francisco, CA
Verified June 17, 2026 · Bonded
Skyy Builders Inc
B · San Francisco, CA
Verified June 17, 2026 · Bonded
Buhler Steve Construction
B · San Francisco, CA
Verified June 17, 2026 · Bonded
What to check next
Frequently asked questions
Is Y K Mason & Sons Inc licensed in California?
Yes. Y K Mason & Sons Inc holds an active California state contractor license (CSLB #1001324), verified against the CSLB public record on June 17, 2026.
What is Y K Mason & Sons Inc's CSLB license number?
Y K Mason & Sons Inc's California contractor license number is 1001324. 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 Y K Mason & Sons Inc licensed for?
Y K Mason & Sons Inc is classified under General Building (B) and Scaffolding (D-39) by the CSLB.
How do I verify Y K Mason & Sons Inc's license myself?
Look up license #1001324 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 #1001324 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.