Welton Underground
Verified against CSLB on · View on CSLB
License details
- License number
- 1047016
- Classifications
- License term on file
- November 19, 2018 – November 30, 2026
Business
- (925) 948 5855 (CSLB public record)
- 1305 FRANKLIN ST 509, Oakland, CA 94612Alameda County
Are you Welton Underground? 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 Pipeline contractors in Oakland
What to check next
Frequently asked questions
Is Welton Underground licensed in California?
Yes. Welton Underground holds an active California state contractor license (CSLB #1047016), verified against the CSLB public record on June 17, 2026.
What is Welton Underground's CSLB license number?
Welton Underground's California contractor license number is 1047016. 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 Welton Underground licensed for?
Welton Underground is classified under Pipeline (C-34) by the CSLB.
How do I verify Welton Underground's license myself?
Look up license #1047016 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 #1047016 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.