Preferred Plumbing & Drain
Verified against CSLB on · View on CSLB
License details
- License number
- 848878
- Classifications
- License term on file
- October 26, 2004 – October 31, 2026
Business
- (925) 677 0900 (CSLB public record)
- 5600 IMHOFF DR STE C, Concord, CA 94520Contra Costa County
Are you Preferred Plumbing & Drain? 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 Engineering contractors in Concord
West Coast Land and Development Inc
A · Concord, CA
Verified June 17, 2026 · Bonded
Swinerton Builders & Power Engineering A Joint Venture
A · Concord, CA
Verified June 17, 2026 · Bonded
California Highway Construction Group Inc
A · Concord, CA
Verified June 17, 2026 · Bonded
Swinerton / Webcor JV
A · Concord, CA
Verified June 17, 2026 · Bonded
JB Infrastructure
A · Concord, CA
Verified June 17, 2026 · Bonded
TNH Development LLC
A · Concord, CA
Verified June 17, 2026 · Bonded
What to check next
Frequently asked questions
Is Preferred Plumbing & Drain licensed in California?
Yes. Preferred Plumbing & Drain holds an active California state contractor license (CSLB #848878), verified against the CSLB public record on June 17, 2026.
What is Preferred Plumbing & Drain's CSLB license number?
Preferred Plumbing & Drain's California contractor license number is 848878. 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 Preferred Plumbing & Drain licensed for?
Preferred Plumbing & Drain is classified under General Engineering (A) and Plumbing (C-36) by the CSLB.
How do I verify Preferred Plumbing & Drain's license myself?
Look up license #848878 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 #848878 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.