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Licensed plumbers in Rancho Santa Margarita
20 contractors with a Rancho Santa Margarita mailing address hold an active (CLEAR) CSLB C-36 Plumbing license in CSLB's license file dated Oct 20, 2026. Get quotes from up to 3 of them →
Plumbing work calls for a C-36 Plumbing license. A B general builder can do plumbing only as part of a larger job with other unrelated trades, unless they also hold a C-36.
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Ad space · openAdvertise here
A Featured spot on this plumbing page for Rancho Santa Margarita is a paid ad for a License Verified contractor, labeled "Ad" every time. It sits apart from the directory and never changes the order below. From $49/mo. Join the waitlist →
All 20 licensed plumbers
Order: A–Z by business name (neutral, stated). Showing 1–20. ACUTE PLUMBING CONCEPTS
C-36 · Lic. #1007544 · Rancho Santa Margarita 92688
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
AGS SERVICES INC
C-36 · also C-20 · Lic. #709685 · Rancho Santa Margarita 92688
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ANTHONY PLUMBING
C-36 · also C-16 · Lic. #652121 · Rancho Santa Margarita 92688
Workers' comp: License does not have current W/C
✓License Verified CSLB file · Oct 20, 2026
APPLIED PLUMBING AND ROOTER INC
C-36 · Lic. #1151992 · Rancho Santa Margarita 92688
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BOOTHNEY & SONS PLUMBING
C-36 · Lic. #1121999 · Rancho Santa Margarita 92688
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
HERCON COMPANY INC
C-36 · also A, ASB, B, C-10… · Lic. #603928 · Rancho Santa Margarita 92688
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
INTEGRITY PLUMBING INC
C-36 · Lic. #1098635 · Rancho Santa Margarita 92688
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
J M L PLUMBING COMPANY INC
C-36 · Lic. #1005950 · Rancho Santa Margarita 92688
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
KEITH KEIL PLUMBING
C-36 · Lic. #935435 · Rancho Santa Margarita 92688
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
MASTER PLUMBING
C-36 · Lic. #885312 · Rancho Santa Margarita 92688
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
PARS PLUMBING
C-36 · Lic. #1040626 · Rancho Santa Margarita 92688
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
PARTNERS PLUMBING INC
C-36 · Lic. #1057706 · Rancho Santa Margarita 92688
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
PLUMBING MADE SIMPLE INC
C-36 · Lic. #998379 · Rancho Santa Margarita 92688
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
PRO FILTRATION WATER SYSTEMS
C-36 · Lic. #1031539 · Rancho Santa Margarita 92688
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
RANCHO HEATING & AIR PLUMBING INC
C-36 · also C-20 · Lic. #1024860 · Rancho Santa Margarita 92688
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SANTA MARGARITA PLUMBING
C-36 · also C-20 · Lic. #1040867 · Rancho Santa Margarita 92688
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SEELBINDER PLUMBING
C-36 · Lic. #606458 · Rancho Santa Margarita 92688
Workers' comp: exempt
Active — CSLB flag: renewal received
SOUTH COUNTY PLUMBING INC
C-36 · also B · Lic. #972220 · Rancho Santa Margarita 92688
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SUPREME MECHANICAL CONTRACTORS INC
C-36 · Lic. #1163047 · Rancho Santa Margarita 92688
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
WATERMAN PLUMBING
C-36 · Lic. #1161875 · Rancho Santa Margarita 92688
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026