Plumbing contractors licensed in California

Every active California license that lists plumbing work, sorted by name.

• Oakville Pump Service INC
  General Contractors, Electrical · Napa · #744958
  Active Insurance current
• Oasis Air and Solar
  Plumbing, HVAC · Bakersfield · #1038061
  Active Insurance expired
• Oasis Air Conditioning INC
  General Contractors, Plumbing · Bakersfield · #297547
  Active Insurance expired
• Oasis Plumbing & Drain Service INC
  Plumbing · Temecula · #771930
  Active Insurance current
• Oasis Plumbing & Heating
  General Contractors, Plumbing · National City · #796018
  Active No insurance on file
• Oasis Plumbing Heating & Air Conditioning
  Plumbing, HVAC · San Marcos · #1093808
  Active Insurance current
• Oasis Pool Plumbing INC
  Plumbing, Pools & Spas · Fontana · #1105121
  Active No insurance on file
• Ob Construction & Engineering Corp
  General Contractors, Plumbing · National City · #1114983
  Active Insurance current
• Obregon Plumbing and Rooter
  Plumbing · La Verne · #1068506
  Active No insurance on file
• Oc Airtech LLC
  Plumbing, HVAC · Tustin · #1096693
  Active Insurance current
• Oc Backflow Testing
  Plumbing · Westminster · #726008
  Active No insurance on file
• Oc Coastal Builder
  General Contractors, Plumbing · San Pedro · #992307
  Active No insurance on file
• Oc Land Construction
  General Contractors, Plumbing · Mission Viejo · #1054664
  Active Insurance expiring soon
• Oc Plumbing & Backflow
  Plumbing · Anaheim · #1120739
  Active No insurance on file
• Oc Plumbing & Water Heaters
  Plumbing · Newark · #1125266
  Active No insurance on file
• Oc Premier Plumbing
  Plumbing · Huntington Beach · #1162671
  Active No insurance on file
• Oc Repipes
  Plumbing · Irvine · #1037177
  Active Insurance current
• Oc3 Construction & Consulting INC
  General Contractors, Plumbing · San Miguel · #1114486
  Active No insurance on file
• Occidental Express
  General Contractors, Electrical · San Francisco · #319153
  Active No insurance on file
• Occidental Plumbing
  Plumbing · Occidental · #933799
  Active No insurance on file
• Ocean Bay Plumbing INC
  Plumbing · Hayward · #1121317
  Active Insurance current
• Ocean Blue Plumbing
  Plumbing · Pacifica · #855954
  Active No insurance on file
• Ocean Front Corp Facility Services
  General Contractors, Plumbing · Castle Rock · #959134
  Active Insurance current
• Ocean Hills Plumbing INC
  Plumbing · Vista · #1011281
  Active Insurance current
• Ocean Park Mechanical INC
  Plumbing, HVAC · Seattle · #986064
  Active Insurance expiring soon
• Ocean Plumbing
  Plumbing · Oakland · #1133912
  Active No insurance on file
• Ocean View Plumbing and Rooter
  Plumbing · Oxnard · #751305
  Active Insurance current
• Oceanaire Plumbing INC
  Plumbing · Moorpark · #904311
  Active No insurance on file
• Oceanside Plumbing
  Plumbing · Oceanside · #1107799
  Active No insurance on file
• Oceanside Sheetmetal INC
  General Contractors, Plumbing · San Francisco · #968537
  Active Insurance expiring soon
• Ochoa Plumbing Sewers & Drains
  Plumbing · Sunnyvale · #1129386
  Active No insurance on file
• Octavio Andrade Plumbing
  Plumbing · Los Angeles · #881133
  Active No insurance on file
• Octavio Serrano
  Plumbing · San Bernardino · #1029252
  Active No insurance on file
• Octavio Torres Barajas
  Plumbing · Ceres · #1085252
  Active No insurance on file
• Octo Plumbing INC
  Plumbing · Moreno Valley · #1158500
  Active No insurance on file
• Odell Plumbing Services
  General Contractors, Plumbing · Los Angeles · #1150937
  Active No insurance on file
• Odin's Oasis INC
  Electrical, Plumbing · Castaic · #1083694
  Active No insurance on file
• Odonnell Plumbing
  Plumbing · Yorba Linda · #1046627
  Active No insurance on file
• Odor No More
  Plumbing · Westminster · #1051979
  Active Insurance current
• Ofer Shoshana
  General Contractors, Plumbing · Woodland Hills · #887797
  Active No insurance on file
• Og Brothers Plumbing INC
  Plumbing · Cathedral City · #1028711
  Active Insurance current
• Og Plumbing LLC
  Plumbing · Oxnard · #1128227
  Active No insurance on file
• Oh My Clog Plumbing
  Plumbing · Baldwin Park · #1149618
  Active No insurance on file
• Ohana Plumbing INC
  Plumbing · Murrieta · #1071844
  Active No insurance on file
• Ohana Plumbing Plus INC
  Plumbing, HVAC · Lemon Grove · #1129895
  Active Insurance current
• Ohms Electric Plumbing HVAC Hic Gen Building Construction
  General Contractors, Electrical · Salinas · #688716
  Active No insurance on file
• Ohnstad Plumbing
  Plumbing · Truckee · #1068702
  Active No insurance on file
• Oibi Incorporated
  General Contractors, Plumbing · Southlake · #1076092
  Active No insurance on file
• Ojai Rooter & Plumbing INC
  Plumbing · Ojai · #1110980
  Active No insurance on file
• Old Blue Scout Mobile Service
  Plumbing · Angelus Oaks · #1112914
  Active No insurance on file
• Old Town Plumbing
  Plumbing · Tehachapi · #1078711
  Active No insurance on file
• Old Towne Plumbing
  Plumbing, HVAC · Orange · #1002282
  Active Insurance current
• Older Home Specialists INC
  General Contractors, Plumbing · Carmichael · #826549
  Active Insurance current
• Ole Hanson Plumbing, LLC
  Plumbing · San Clemente · #1139177
  Active No insurance on file
• Oleg Makarovskiy
  Plumbing · Pleasant Hill · #1162501
  Active No insurance on file
• Olga Garibay Plumbing
  Plumbing · Castro Valley · #1139028
  Active No insurance on file
• Olivera's Plumbing
  Plumbing · Santa Rosa · #821396
  Active No insurance on file
• Olivero Plumbing Company INC
  Plumbing · El Cerrito · #162170
  Active Insurance current
• Ollie's Plumbing and Rooter Service
  Plumbing · Arroyo Grande · #1142785
  Active No insurance on file
• Olmsted Plumbing
  Plumbing · Rio Linda · #388837
  Active No insurance on file
• Olsen Construction
  General Contractors, Plumbing · Woodland Hills · #748001
  Active No insurance on file
• Olson Superior Plumbing INC
  Plumbing, HVAC · Lake Forest · #1045399
  Active No insurance on file
• Olson's Plumbing and Rooter INC
  Plumbing · Huntington Beach · #647584
  Active Insurance current
• Olson's Rooter Service INC DBA Butch's Old Time Plumbing
  Plumbing · Burbank · #977986
  Active Insurance current
• Olsson Plumbing Company
  Plumbing, HVAC · Danville · #443706
  Active Insurance current
• Olver Hernandez Hernandez
  Plumbing · Sherman Oaks · #1159156
  Active No insurance on file
• Olvera Plumbing and Rooter
  Plumbing · Simi Valley · #1042681
  Active No insurance on file
• Olympia Fire Protection
  Plumbing · Capistrano Beach · #553550
  Active No insurance on file
• Om Plumbing Service
  Plumbing · Livermore · #1160901
  Active No insurance on file
• Omar Moyao Aguilera
  Plumbing · Northridge · #1118546
  Active No insurance on file
• Omar's Plumbing
  Plumbing · Escondido · #1108697
  Active No insurance on file
• Omdan Development INC
  General Contractors, Plumbing · Northridge · #1148568
  Active No insurance on file
• Omega Construction Services INC
  General Contractors, Electrical · Fullerton · #1018981
  Active Insurance current
• Omega Plumbing
  Plumbing · Indio · #1101003
  Active No insurance on file
• Omega Plumbing
  Plumbing · Burbank · #967794
  Active Insurance expiring soon
• Omega Plumbing & Rooter
  Plumbing · Los Angeles · #1021343
  Active No insurance on file
• Omega Plumbing Services
  Plumbing · Morro Bay · #1005092
  Active Insurance current
• Omelchenko Dmytro
  Electrical, Plumbing · Bakersfield · #1133965
  Active Insurance current
• Omid Kalif Plumbing
  Plumbing · Burbank · #1065364
  Active Insurance current
• Omid Khalif Plumbing
  Plumbing · Burbank · #1036685
  Active No insurance on file
• Omni Construction Solutions
  General Contractors, Plumbing · Rialto · #1088429
  Active Insurance current
• On - Site Builders INC
  General Contractors, Electrical · San Fernando · #399424
  Active Insurance current
• On Call Plumbing
  Plumbing · Lancaster · #1013633
  Active Insurance expiring soon
• On Demand Rooter
  Plumbing · Los Angeles · #1064597
  Active No insurance on file
• On Point Plumbing
  Plumbing · Chula Vista · #1020877
  Active No insurance on file
• On Point Plumbing Heating & Air Conditioning INC
  General Contractors, Plumbing · Paso Robles · #1091730
  Active Insurance current
• On Point Plumbing Systems INC
  Plumbing · Saugus · #1029874
  Active Insurance current
• On R Way Plumbing LLC
  Plumbing · Hayward · #1036700
  Active No insurance on file
• On Site
  General Contractors, Electrical · Sun City · #569390
  Active No insurance on file
• On Site Plumbing & Septic
  Plumbing · Atascadero · #1125955
  Active No insurance on file
• On the Go Plumbing and Drains
  Plumbing · Buena Park · #1131562
  Active No insurance on file
• On the Ritz Plumbing INC
  Plumbing · Penryn · #939954
  Active No insurance on file
• On the Spot Construction
  Roofing, General Contractors · Anaheim · #935001
  Active Insurance current
• On the Spot Plumbing
  Plumbing · Contoe · #913693
  Active No insurance on file
• On Time Home Services
  Plumbing, HVAC · Temecula · #857180
  Active Insurance current
• On Time Plumbing
  Plumbing · Mountain View · #992579
  Active No insurance on file
• On Time Plumbing Services INC
  Plumbing · Panorama City · #1143917
  Active No insurance on file
• On Time Repipe Specialist
  Plumbing · Moreno Valley · #1095445
  Active No insurance on file
• On Time Water Heaters INC
  Plumbing · Simi Valley · #1136748
  Active Insurance current
• On-Call Plumbing & Rooter
  Plumbing · San Francisco · #977337
  Active No insurance on file

Last checked against state records on Oct 10, 2026. How we get this data.