Best Licensed Plumbers in Rancho Santa Margarita, CA
19 plumbing companies registered in Rancho Santa Margarita 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.
- 1,379 active C-36 plumbing licenses in Orange County; 19 registered in Rancho Santa Margarita
- 9 of Rancho Santa Margarita's 19 licenses (47.4%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Rancho Santa Margarita: 11 years
- Longest Rancho Santa Margarita licensure: since 1985
- 106 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1990
- Phone
- (949) 766-7944
- Verified
- August 17, 2026
- Licensed since
- 1995
- Phone
- (714) 620-4356
- Verified
- August 17, 2026
- Licensed since
- 2006
- Phone
- (949) 636-2580
- Verified
- August 17, 2026
- Licensed since
- 2012
- Phone
- (949) 306-3930
- Verified
- August 17, 2026
- Licensed since
- 2015
- Phone
- (949) 264-6340
- Verified
- August 17, 2026
- Licensed since
- 2017
- Phone
- (949) 267-8170
- Verified
- August 17, 2026
- Licensed since
- 2018
- Phone
- (949) 858-3818
- Verified
- August 17, 2026
- Licensed since
- 2019
- Phone
- (949) 583-9744
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Seelbinder Plumbing | #606458 | On file | 1990 |
| Ags Services Inc. | #709685 | On file | 1995 |
| Master Plumbing | #885312 | On file | 2006 |
| South County Plumbing Inc. | #972220 | On file | 2012 |
| J M L Plumbing Company Inc. | #1005950 | On file | 2015 |
| Rancho Heating & Air Plumbing Inc. | #1024860 | On file | 2017 |
Orange County plumbing licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 1,379 active C-36 plumbing licenses in Orange County, 19 of them registered in Rancho Santa Margarita. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Rancho Santa Margarita license has been held 11 years, and the longest-standing one dates to 1985. 9 of Rancho Santa Margarita's 19 licenses (47.4%) 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: 1,376 of the county's 1,379 licenses carry the same $25,000 bond California sets by statute. 106 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 Rancho Santa Margarita: common questions
How many licensed plumbers are there in Rancho Santa Margarita?
19 active C-36 plumbing licenses are registered in Rancho Santa Margarita, out of 1,379 across Orange County. 19 Rancho Santa Margarita-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. 19 active C-36 plumbing licenses are registered in Rancho Santa Margarita and 1,379 across Orange County, the longest-standing issued in 1985. 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 9 of Rancho Santa Margarita's 19 currently carry. 106 Orange County licenses expire within 90 days.