Best Licensed Plumbers in Pleasanton, CA
19 plumbing companies registered in Pleasanton hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by workers' compensation cover and years licensed.
- 488 active C-36 plumbing licenses in Alameda County; 21 registered in Pleasanton
- 12 of Pleasanton's 21 licenses (57.1%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Pleasanton: 22 years
- Longest Pleasanton licensure: since 1973
- 43 county licenses reach their expiration date within 90 days
We earn a fee when you call businesses through numbers on this site. This never affects who is listed or how they rank.
- Verified
- August 17, 2026
- Licensed since
- 1973
- Phone
- (925) 846-1833
- Verified
- August 17, 2026
- Licensed since
- 1983
- Phone
- (925) 462-1639
- Verified
- August 17, 2026
- Licensed since
- 1984
- Phone
- (925) 600-8955
- Verified
- August 17, 2026
- Licensed since
- 1993
- Phone
- (925) 461-3333
- Verified
- August 17, 2026
- Licensed since
- 1994
- Phone
- (925) 525-7110
- Verified
- August 17, 2026
- Licensed since
- 2000
- Phone
- (925) 461-8549
- Verified
- August 17, 2026
- Licensed since
- 2003
- Phone
- (925) 444-4444
- Verified
- August 17, 2026
- Licensed since
- 2004
- Phone
- (925) 249-9611
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Can-am Plumbing Inc. | #286411 | On file | 1973 |
| Valley Plumbing Home Center Inc. | #437867 | On file | 1983 |
| Daniel L Marks Inc. DBA Marina Plumbing Company | #462864 | On file | 1984 |
| Flanders Heat And Air Systems Inc. | #677502 | On file | 1993 |
| Gk Construction | #699461 | On file | 1994 |
| Savior Plumbing Inc. | #786360 | On file | 2000 |
Alameda County plumbing licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 488 active C-36 plumbing licenses in Alameda County, 21 of them registered in Pleasanton. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Pleasanton license has been held 22 years, and the longest-standing one dates to 1973. 12 of Pleasanton's 21 licenses (57.1%) carry current workers' compensation cover in CSLB's file. That is employee injury cover, not liability insurance, and a blank usually means an owner-operator with no employees - lawful, and not a mark against anyone. The contractor bond is not a signal here: 488 of the county's 488 licenses carry the same $25,000 bond California sets by statute. 43 county licenses reach their expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.
Plumbers in Pleasanton: common questions
How many licensed plumbers are there in Pleasanton?
21 active C-36 plumbing licenses are registered in Pleasanton, out of 488 across Alameda County. 19 Pleasanton-registered companies passed our license verification, and the 8 on this page are the top-ranked of those. Only licenses CSLB shows as CLEAR and unexpired are listed.
Does California license plumbers?
Yes. California licenses contractors by classification, and C-36 is the CSLB classification that authorises this work. 21 active C-36 plumbing licenses are registered in Pleasanton and 488 across Alameda County, the longest-standing issued in 1973. Only CLEAR, unexpired licenses appear here.
How do I check a plumber's license in California?
Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which 12 of Pleasanton's 21 currently carry. 43 Alameda County licenses expire within 90 days.