Licensed Plumbing (C-36) contractors in California

The California Contractors State License Board (CSLB) lists 12,024 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 1, 2026.

Showing 5,101–5,160 of 12,024 contractors

Immediate Plumbing & Rooter
Huntington Beach, CA · CSLB #806657 · as of July 1, 2026
Active · clear
Imperial Beach Plumbing
Imperial Beach, CA · CSLB #986031 · as of July 1, 2026
Active · clear
Imperial Plumbing
Concord, CA · CSLB #1120091 · as of July 1, 2026
Active · clear
Imperial Plumbing
Los Angeles, CA · CSLB #742870 · as of July 1, 2026
Active · clear
Imperial T & S Plumbing INC
Woodland Hills, CA · CSLB #989412 · as of July 1, 2026
Active · clear
Impexable Plumbing Solutions
Norwalk, CA · CSLB #1119878 · as of July 1, 2026
Active · clear
Import Plumbing INC
Thousand Oaks, CA · CSLB #1011282 · as of July 1, 2026
Active · clear
Impressive Plumbing
Hercules, CA · CSLB #791342 · as of July 1, 2026
Active · clear
I'm Your Man Plumbing Service
Los Angeles, CA · CSLB #921495 · as of July 1, 2026
Active · clear
In And Out Plumbing
Ontario, CA · CSLB #1030564 · as of July 1, 2026
Active · clear
Inari Plumbing Services INC
San Diego, CA · CSLB #965977 · as of July 1, 2026
Active · clear
Inbound Plumbing
Altadena, CA · CSLB #1088617 · as of July 1, 2026
Active · clear
Bryan Ince Plumbing
Descanso, CA · CSLB #1068443 · as of July 1, 2026
Active · clear
Incredible Plumber INC
Reseda, CA · CSLB #1088764 · as of July 1, 2026
Active · clear
Incredible Plumbing And Drain Services
San Diego, CA · CSLB #1083152 · as of July 1, 2026
Active · clear
Jay Indeck Plumbing
Alta Loma, CA · CSLB #732557 · as of July 1, 2026
Active · clear
Independent INC
Highland, CA · CSLB #878264 · as of July 1, 2026
Active · clear
Independent Mechanical Plumbing INC
Bakersfield, CA · CSLB #964428 · as of July 1, 2026
Active · clear
Independent Plumbing
Concord, CA · CSLB #805022 · as of July 1, 2026
Active · clear
Independent Plumbing And Drain INC
Carlsbad, CA · CSLB #985172 · as of July 1, 2026
Active · clear
Independent Plumbing & Drain
Lincoln, CA · CSLB #845236 · as of July 1, 2026
Active · clear
Independent Propane Service
Paso Robles, CA · CSLB #1133485 · as of July 1, 2026
Active · clear
In-depth Leak Detection LLC
Concord, CA · CSLB #681549 · as of July 1, 2026
Active · clear
Indian Wells Valley Plumbing INC
Ridgecrest, CA · CSLB #1042123 · as of July 1, 2026
Active · clear
Industrial Corrective Maintenance Services
Riverside, CA · CSLB #985526 · as of July 1, 2026
Active · clear
Industrial Maintenance Plumbing Service
Alta Loma, CA · CSLB #997749 · as of July 1, 2026
Active · clear
Industrial Pipe Solutions INC
Patterson, CA · CSLB #1050339 · as of July 1, 2026
Active · clear
Industrial Piping Systems INC
San Jose, CA · CSLB #496005 · as of July 1, 2026
Active · clear
Infinite Plumbing
Carson, CA · CSLB #1137681 · as of July 1, 2026
Active · clear
Infinity Backflow & Plumbing Service
Claremont, CA · CSLB #1134587 · as of July 1, 2026
Active · clear
Infinity Plumbing Designs INC
Corona, CA · CSLB #892998 · as of July 1, 2026
Active · clear
Infinity Plumbing INC
Los Angeles, CA · CSLB #804047 · as of July 1, 2026
Active · clear
Infinity Plumbing & Rooter INC
San Francisco, CA · CSLB #1047052 · as of July 1, 2026
Active · clear
Infinity Plumbing Sewer & Drain
North Highlands, CA · CSLB #1111450 · as of July 1, 2026
Active · clear
I N G Plumbing INC
Lawndale, CA · CSLB #1050278 · as of July 1, 2026
Active · clear
Ingram Plumbing Solutions
Lincoln, CA · CSLB #1141986 · as of July 1, 2026
Active · clear
In-home Plumbing
Long Beach, CA · CSLB #1130937 · as of July 1, 2026
Active · clear
In Hot Water Plumbing
Temecula, CA · CSLB #1149704 · as of July 1, 2026
Active · clear
Inked Up Fellas Plumbing
La Quinta, CA · CSLB #1128218 · as of July 1, 2026
Active · clear
Inland Empire Plumbing INC
San Bernardino, CA · CSLB #1036489 · as of July 1, 2026
Active · clear
Inland Empire Quality Plumbing
Murrieta, CA · CSLB #1108000 · as of July 1, 2026
Active · clear
Inland Plumbing Solutions INC
Riverside, CA · CSLB #1145622 · as of July 1, 2026
Active · clear
Inland Pro Plumbing
Victorville, CA · CSLB #1019749 · as of July 1, 2026
Active · clear
Inland Valley Plumbing
Hemet, CA · CSLB #959681 · as of July 1, 2026
Active · clear
Inline Drain & Plumbing
Menifee, CA · CSLB #1154342 · as of July 1, 2026
Active · clear
In - Line Plumbing
Yuba City, CA · CSLB #766467 · as of July 1, 2026
Active · clear
Inmotion Plumbing
Lompoc, CA · CSLB #1133626 · as of July 1, 2026
Active · clear
Inncon Design Plumbing
San Francisco, CA · CSLB #1112792 · as of July 1, 2026
Active · clear
Inner Peace Plumbing INC
Canyon Lake, CA · CSLB #1129841 · as of July 1, 2026
Active · clear
Inness Mechanical Design & Maintenance
San Francisco, CA · CSLB #793846 · as of July 1, 2026
Active · clear
Innovation Plumbing INC
San Jose, CA · CSLB #1073264 · as of July 1, 2026
Active · clear
Innovation Plumbing Services LLC
Hughson, CA · CSLB #610771 · as of July 1, 2026
Active · clear
Innovative Pipe Systems
Stockton, CA · CSLB #1070006 · as of July 1, 2026
Active · clear
Innovative Piping Systems
Mill Valley, CA · CSLB #728645 · as of July 1, 2026
Active · clear
Innovative Plumbing
Lakeside, CA · CSLB #1030140 · as of July 1, 2026
Active · clear
Innovative Plumbing Services
Sacramento, CA · CSLB #1126134 · as of July 1, 2026
Active · clear
Innovative Plumbing Solutions INC
Santa Ana, CA · CSLB #1082307 · as of July 1, 2026
Active · clear
In & Out Plumbing
Sacramento, CA · CSLB #1036209 · as of July 1, 2026
Active · clear
In & Out Plumbing And Rootering INC
Tarzana, CA · CSLB #904281 · as of July 1, 2026
Active · clear
Eric D Inouye
Hayward, CA · CSLB #734885 · as of July 1, 2026
Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of July 1, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.