Licensed Plumbing (C-36) contractors in California

The California Contractors State License Board (CSLB) lists 11,918 California contractors classified C-36 (Plumbing (C-36)). Each entry below links to a full dossier with license status, insurance, bond, and enforcement — as of July 3, 2026.

Showing 7,381–7,440 of 11,918 contractors

Alan Oakley Plumbing
Campbell, CA · CSLB #1002745 · as of July 3, 2026
Active · clear
Oakley Plumbing INC
Torrance, CA · CSLB #926402 · as of July 3, 2026
Active · clear
Oak Plumbing INC
Benicia, CA · CSLB #1018855 · as of July 3, 2026
Active · clear
Oasis Plumbing & Drain Service INC
Temecula, CA · CSLB #771930 · as of July 3, 2026
Active · clear
Oasis Pool Plumbing INC
Fontana, CA · CSLB #1105121 · as of July 3, 2026
Active · clear
Obc Plumbing INC
Covina, CA · CSLB #1068206 · as of July 3, 2026
Active · clear
O B D Plumbing
Eureka, CA · CSLB #820052 · as of July 3, 2026
Active · clear
Mark Oblas Plumbing
Northridge, CA · CSLB #474829 · as of July 3, 2026
Active · clear
O B Plumbing
Carmichael, CA · CSLB #914612 · as of July 3, 2026
Active · clear
Obregon Plumbing And Rooter
La Verne, CA · CSLB #1068506 · as of July 3, 2026
Active · clear
O'briant Plumbing
Rialto, CA · CSLB #982324 · as of July 3, 2026
Active · clear
O C Backflow
Santa Ana, CA · CSLB #1039973 · as of July 3, 2026
Active · clear
Oc Backflow Testing
Westminster, CA · CSLB #726008 · as of July 3, 2026
Active · clear
Occidental Plumbing
Occidental, CA · CSLB #933799 · as of July 3, 2026
Active · clear
Oceanaire Plumbing INC
Moorpark, CA · CSLB #904311 · as of July 3, 2026
Active · clear
Ocean Bay Plumbing INC
Hayward, CA · CSLB #1121317 · as of July 3, 2026
Active · clear
Ocean Blue Plumbing
Pacifica, CA · CSLB #855954 · as of July 3, 2026
Active · clear
Ocean Blue Plumbing INC
Los Angeles, CA · CSLB #1052391 · as of July 3, 2026
Active · clear
Ocean Hills Plumbing INC
Vista, CA · CSLB #1011281 · as of July 3, 2026
Active · clear
Ocean Plumbing
Oakland, CA · CSLB #1133912 · as of July 3, 2026
Active · clear
Oceanside Plumbing
Oceanside, CA · CSLB #1107799 · as of July 3, 2026
Active · clear
Ocean View Plumbing And Rooter
Oxnard, CA · CSLB #751305 · as of July 3, 2026
Active · clear
Ochoa Plumbing
Rohnert Park, CA · CSLB #956268 · as of July 3, 2026
Active · clear
Ochoa Plumbing Sewers & Drains
Sunnyvale, CA · CSLB #1129386 · as of July 3, 2026
Active · clear
O'connor Plumbing Company INC
Oak Hills, CA · CSLB #1072345 · as of July 3, 2026
Active · clear
Tim O'connor Plumbing
Santa Clarita, CA · CSLB #1032246 · as of July 3, 2026
Active · clear
O C Plumbing
San Jose, CA · CSLB #1028918 · as of July 3, 2026
Active · clear
O C Plumbing
Placentia, CA · CSLB #825143 · as of July 3, 2026
Active · clear
O C Plumbing
Stanton, CA · CSLB #757633 · as of July 3, 2026
Active · clear
Oc Plumbing & Backflow
Anaheim, CA · CSLB #1120739 · as of July 3, 2026
Active · clear
Oc Plumbing BY Osta
Irvine, CA · CSLB #1147963 · as of July 3, 2026
Active · clear
The O C Plumbing Company
Westminster, CA · CSLB #858277 · as of July 3, 2026
Active · clear
Oc Plumbing & Water Heaters
Newark, CA · CSLB #1125266 · as of July 3, 2026
Active · clear
Oc Repipes
Irvine, CA · CSLB #1037177 · as of July 3, 2026
Active · clear
O C - Rooter
Anaheim, CA · CSLB #1018075 · as of July 3, 2026
Active · clear
Odin Plumbing
Hemet, CA · CSLB #1093543 · as of July 3, 2026
Active · clear
Mark Odney Plumbing
Agoura Hills, CA · CSLB #842027 · as of July 3, 2026
Active · clear
Odonnell Plumbing
Yorba Linda, CA · CSLB #1046627 · as of July 3, 2026
Active · clear
Odor No More
Westminster, CA · CSLB #1051979 · as of July 3, 2026
Active · clear
O'dowd Plumbing INC
Rohnert Park, CA · CSLB #522217 · as of July 3, 2026
Active · clear
O & D Plumbing
Bellflower, CA · CSLB #763246 · as of July 3, 2026
Active · clear
O'farrell Plumbing
Oregon House, CA · CSLB #771562 · as of July 3, 2026
Active · clear
Franklin V Paiste DBA Ofk Plumbing
Chula Vista, CA · CSLB #1049019 · as of July 3, 2026
Active · clear
Og Brothers Plumbing INC
Cathedral City, CA · CSLB #1028711 · as of July 3, 2026
Active · clear
O G Plumbing
Napa, CA · CSLB #1034291 · as of July 3, 2026
Active · clear
Og Plumbing
Oxnard, CA · CSLB #1128227 · as of July 3, 2026
Active · clear
Ohana Plumbing INC
Murrieta, CA · CSLB #1071844 · as of July 3, 2026
Active · clear
Ohana Plumbing Plus INC
Lemon Grove, CA · CSLB #1129895 · as of July 3, 2026
Active · clear
O'hearn Plumbing
West Hills, CA · CSLB #504594 · as of July 3, 2026
Active · clear
Oh MY Clog Plumbing
Baldwin Park, CA · CSLB #1149618 · as of July 3, 2026
Active · clear
Ohnstad Plumbing
Truckee, CA · CSLB #1068702 · as of July 3, 2026
Active · clear
Oh Plumbing
Riverside, CA · CSLB #1061698 · as of July 3, 2026
Active · clear
Ojai Rooter & Plumbing INC
Ojai, CA · CSLB #1110980 · as of July 3, 2026
Active · clear
O & J Plumbing Services INC
San Diego, CA · CSLB #1017676 · as of July 3, 2026
Active · clear
O K Plumbing INC
Los Angeles, CA · CSLB #743392 · as of July 3, 2026
Active · clear
Lee Olaeta Plumbing
Petaluma, CA · CSLB #514632 · as of July 3, 2026
Active · clear
Old Blue Scout Mobile Service
Angelus Oaks, CA · CSLB #1112914 · as of July 3, 2026
Active · clear
Old Town Plumbing
Tehachapi, CA · CSLB #1078711 · as of July 3, 2026
Active · clear
O Leary Plumbing INC
Sunnyvale, CA · CSLB #1008614 · as of July 3, 2026
Active · clear
Ole Hanson Plumbing, LLC
San Clemente, CA · CSLB #1139177 · as of July 3, 2026
Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of July 3, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.