Licensed Plumbing (C-36) contractors in California

The California Contractors State License Board (CSLB) lists 12,022 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 June 29, 2026.

Showing 2,581–2,640 of 12,022 contractors

Cooper's Plumbing And Drain Service
Yuba City, CA · CSLB #920307 · as of June 29, 2026
Active · clear
Co-opp Plumbing
Bakersfield, CA · CSLB #813231 · as of June 29, 2026
Active · clear
C O Plumbing Company INC
Rosemead, CA · CSLB #754458 · as of June 29, 2026
Active · clear
C O Plumbing Salinas INC
Salinas, CA · CSLB #1103144 · as of June 29, 2026
Active · clear
Copper And Brass Plumbing
Warner Springs, CA · CSLB #1069886 · as of June 29, 2026
Active · clear
Copper Canyon Plumbing And Leak Detection
San Diego, CA · CSLB #792283 · as of June 29, 2026
Active · clear
Copper Coil Plumbing LLC
Joshua Tree, CA · CSLB #1156839 · as of June 29, 2026
Active · clear
Copper Cut Plumbing LLC
Rancho Cordova, CA · CSLB #1149622 · as of June 29, 2026
Active · clear
Copperfield Plumbing
Fairfield, CA · CSLB #1024776 · as of June 29, 2026
Active · clear
Copper Mountain Plumbing INC
Vacaville, CA · CSLB #973690 · as of June 29, 2026
Active · clear
Copper Plumbing And Drain LLC
Hesperia, CA · CSLB #1119587 · as of June 29, 2026
Active · clear
Copper Plumbing Solutions
Van Nuys, CA · CSLB #936914 · as of June 29, 2026
Active · clear
Copper Shine Plumbing
Simi Valley, CA · CSLB #1122055 · as of June 29, 2026
Active · clear
Copperstate Plumbing
Downey, CA · CSLB #1100284 · as of June 29, 2026
Active · clear
Copper Tree Plumbing INC
Burbank, CA · CSLB #806183 · as of June 29, 2026
Active · clear
Coral Reef Plumbing INC
Jurupa Valley, CA · CSLB #908660 · as of June 29, 2026
Active · clear
Cora Plumbing
Panorama City, CA · CSLB #1054716 · as of June 29, 2026
Active · clear
James Patrick Corcoran
Los Osos, CA · CSLB #669990 · as of June 29, 2026
Active · clear
Daniel Cordova Plumbing INC
Whittier, CA · CSLB #964011 · as of June 29, 2026
Active · clear
Raymundo Cordova
Canoga Park, CA · CSLB #1126016 · as of June 29, 2026
Active · clear
Core BY Dedona Restoration
Valencia, CA · CSLB #1045843 · as of June 29, 2026
Active · clear
Core Foundation Plumbing INC
Palmdale, CA · CSLB #1147863 · as of June 29, 2026
Active · clear
Corena Plumbing LLC
Los Banos, CA · CSLB #1131894 · as of June 29, 2026
Active · clear
Core Plumbing
Loomis, CA · CSLB #1060683 · as of June 29, 2026
Active · clear
Core Plumbing
San Diego, CA · CSLB #866264 · as of June 29, 2026
Active · clear
Core Plumbing Solutions INC
San Jose, CA · CSLB #1134134 · as of June 29, 2026
Active · clear
Coretech Mechanical INC
Murrieta, CA · CSLB #1117740 · as of June 29, 2026
Active · clear
Cornerstone Plumbing
Escondido, CA · CSLB #878380 · as of June 29, 2026
Active · clear
Cornett Plumbing Services
Oakdale, CA · CSLB #809037 · as of June 29, 2026
Active · clear
Coronado Plumbing Repair LLC
Coronado, CA · CSLB #1104960 · as of June 29, 2026
Active · clear
Corona Plumbing INC
Corona, CA · CSLB #1157081 · as of June 29, 2026
Active · clear
Salvador Corona Plumbing INC
Ceres, CA · CSLB #754468 · as of June 29, 2026
Active · clear
Corps Plumbing
Fresno, CA · CSLB #1095985 · as of June 29, 2026
Active · clear
Correct Cryogenics INC
Fontana, CA · CSLB #851423 · as of June 29, 2026
Active · clear
Correct Plumbing LLC
La Mirada, CA · CSLB #1100788 · as of June 29, 2026
Active · clear
Corsa Plumbing And Rooter
Pleasant Hill, CA · CSLB #1091604 · as of June 29, 2026
Active · clear
Cortes Plumbing Service And Drains
Menifee, CA · CSLB #1154173 · as of June 29, 2026
Active · clear
Cortez Plumbing
Los Angeles, CA · CSLB #1124775 · as of June 29, 2026
Active · clear
Cortez Plumbing
Lomita, CA · CSLB #837090 · as of June 29, 2026
Active · clear
Cory's Plumbing
Placerville, CA · CSLB #700849 · as of June 29, 2026
Active · clear
Corys Plumbing
Merced, CA · CSLB #625162 · as of June 29, 2026
Active · clear
Cosentino Plumbing
Mira Loma, CA · CSLB #1028362 · as of June 29, 2026
Active · clear
Cosio's Plumbing Services INC
Burbank, CA · CSLB #1083969 · as of June 29, 2026
Active · clear
Bryan Costa Plumbing
Antelope, CA · CSLB #1103152 · as of June 29, 2026
Active · clear
Costello's Plumbing
San Leandro, CA · CSLB #1018923 · as of June 29, 2026
Active · clear
Costless Drain & Plumbing
San Jose, CA · CSLB #1080282 · as of June 29, 2026
Active · clear
Cost - U -less Plumbing
Stockton, CA · CSLB #961252 · as of June 29, 2026
Active · clear
Cost U Less Plumbing And Drain
San Leandro, CA · CSLB #989330 · as of June 29, 2026
Active · clear
Cottam Enterprises INC
Sonoma, CA · CSLB #973502 · as of June 29, 2026
Active · clear
W R Cotton Plumbing
Bakersfield, CA · CSLB #688527 · as of June 29, 2026
Active · clear
Michael Counsil INC DBA Counsil Plumbing
San Jose, CA · CSLB #926756 · as of June 29, 2026
Active · clear
Count Condes Plumbing CO
Lodi, CA · CSLB #851401 · as of June 29, 2026
Active · clear
Count On Plumbing
Glendora, CA · CSLB #610947 · as of June 29, 2026
Active · clear
Country Side Plumbing
Cloverdale, CA · CSLB #743148 · as of June 29, 2026
Active · clear
Countryside Plumbing INC
Alpine, CA · CSLB #1080355 · as of June 29, 2026
Active · clear
County Backflow
San Marcos, CA · CSLB #1116526 · as of June 29, 2026
Active · clear
Courselle Plumbing
Gardena, CA · CSLB #945610 · as of June 29, 2026
Active · clear
Courteous Plumbing
North Hills, CA · CSLB #875697 · as of June 29, 2026
Active · clear
Courtesy Plumbers INC
Covina, CA · CSLB #1016116 · as of June 29, 2026
Active · clear
Cova Plumbing & Rooter
Lennox, CA · CSLB #1051927 · as of June 29, 2026
Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of June 29, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.