Sonoma County companies starting with O

85 companies, from California license records. Check any of them on the state's license lookup before you hire.

O B A WATERPROOFINGSanta Rosa · Painting Contractor (C-33)
O F D ELECTRIC INCPetaluma · Electrical Contractor (C-10)
O.C.O. LANDSCAPINGPetaluma · Landscaping Contractor (C-27)
O'BRIEN ENERGY SYSTEMSSanta Rosa · Electrical Contractor (C-10)
O'BRIEN MICHAEL NSebastopol · General Building Contractor (B)
O'BRIEN PAINTINGPetaluma · Painting Contractor (C-33)
O'BRIENS FLOOR COVERINGSanta Rosa · Flooring Contractor (C-15)
O'CONNELL LANDSCAPEPetaluma · Landscaping Contractor (C-27)Design-build landscape construction · Landscape design · Stonework
O'DONNELL J A CONSTRUCTIONJenner · General Building Contractor (B)
O'DOWD PLUMBING INCRohnert Park · Plumbing Contractor (C-36)
O'GORMAN ROBERT GENERAL CONTRACTORSonoma · General Building Contractor (B)
O'ROURKE ELECTRIC INCSanta Rosa · General Building Contractor (B) · Electrical Contractor (C-10)Industrial electrical · Commercial electrical · Residential electrical
OAK 3 PAINTINGSanta Rosa · Painting Contractor (C-33)
OAK AND STONE LANDSCAPEPetaluma · Landscaping Contractor (C-27)
OAK RIVER LANDSCAPING INCPetaluma · Landscaping Contractor (C-27)
OAK SHADOWS CONSTRUCTION COMPANY INCORPORATEDHealdsburg · General Building Contractor (B)
OAK STREET REFRIGERATION INCSonoma · Electrical Contractor (C-10) · HVAC Contractor (C-20)
OAKMONT'S PAINTING SERVICESSanta Rosa · Painting Contractor (C-33)
OAKWOOD CONSTRUCTION INCOccidental · General Building Contractor (B)
OASIS HEATING & COOLINGSanta Rosa · HVAC Contractor (C-20)
OASIS PUMP & DRILLINGPetaluma · Electrical Contractor (C-10) · HVAC Contractor (C-20) · Specialty Contractor
OC PAINTING PROSSanta Rosa · Painting Contractor (C-33)
OCALSanta Rosa · General Building Contractor (B) · Electrical Contractor (C-10) · Roofing Contractor (C-39) · Solar Contractor (C-46)
OCAL CONSTRUCTION & REMODELING INCSanta Rosa · General Building Contractor (B) · Specialty Contractor
OCCIDENTAL PLUMBINGOccidental · Plumbing Contractor (C-36)
OCL LANDSCAPING LLCRohnert Park · Landscaping Contractor (C-27)
OGDEN DECOR & DESIGNPetaluma · Painting Contractor (C-33)
OHANA CONSTRUCTION INCPetaluma · General Building Contractor (B)Residential construction · Light commercial construction · Custom homes
OHLIN GARY ASebastopol · General Building Contractor (B)
OHMIC ELECTRICCloverdale · Electrical Contractor (C-10)Troubleshooting · Electrical service upgrades · Solar panels
OLAETA LEE PLUMBINGPetaluma · Plumbing Contractor (C-36)
OLD CAZ CONSTRUCTION INCCazadero · General Building Contractor (B)
OLD DOG WATER TREATMENT LLCCotati · Specialty Contractor
OLD REDWOOD HEATING AND COOLINGWindsor · HVAC Contractor (C-20)
OLD WEST LANDSCAPINGSanta Rosa · Landscaping Contractor (C-27)
OLD WORLD CONSTRUCTION AND DEVELOPMENTSebastopol · General Building Contractor (B)
OLDERBAK TILE INCORPORATEDCotati · Tile Contractor (C-54)
OLEASCAPE LLCCloverdale · Landscaping Contractor (C-27)
OLIVER CONSTRUCTIONSanta Rosa · General Building Contractor (B)
OLIVER DESIGNS PAINTINGFulton · Painting Contractor (C-33)
OLIVERA'S PLUMBINGSanta Rosa · Plumbing Contractor (C-36)
OLIVO RUBEN BUILDERGuerneville · General Building Contractor (B)
OLSEN MARR B INCPetaluma · General Building Contractor (B) · Concrete Contractor (C-8)
OLSON M E CONSTRUCTIONPetaluma · General Building Contractor (B)
OLVERA CONSTRUCTIONSanta Rosa · General Building Contractor (B)
OLYMPUS PAINTINGWindsor · Painting Contractor (C-33)
OMAR PAINTINGSanta Rosa · Painting Contractor (C-33)
OMAR'S FLOORINGPetaluma · Flooring Contractor (C-15)
ON A LIMB TREE SERVICE LLCBodega · Specialty Contractor
ON FIRESanta Rosa · Specialty ContractorGas fireplaces · Electric fireplaces · Wood fireplaces
ON GRADE GENERAL ENGINEERING INCSanta Rosa · General Engineering Contractor (A)
ON THE GRIND STUMPSSanta Rosa · Specialty Contractor
ONE AT A TIME FINE WOODWORKGuerneville · General Building Contractor (B)
ONE WAY PLUMBING INCSanta Rosa · Plumbing Contractor (C-36)
ONE WORLD CONSTRUCTIONSebastopol · General Building Contractor (B)
ONGARO & SONSPetaluma · Specialty Contractor · Electrical Contractor (C-10) · Fire Protection Contractor (C-16) · HVAC Contractor (C-20) · Plumbing Contractor (C-36) · Roofing Contractor (C-39) · Sheet Metal Contractor (C-43)Heating and cooling · Plumbing · Electrical
ONO LARRY MRohnert Park · Landscaping Contractor (C-27)
ONO RUSSELLSebastopol · General Building Contractor (B)
ONTOP WEATHER ROOFING INCSebastopol · Roofing Contractor (C-39)
OPTEMO HYDRONICSSanta Rosa · Specialty Contractor
OPTIMA LANDSCAPING INCSanta Rosa · Landscaping Contractor (C-27)
ORACLE CONSULTING INCSanta Rosa · General Building Contractor (B)
ORGANIC METAL CONSTRUCTION CORPSonoma · Steel Contractor (C-50, C-51)
ORIA PLUMBINGRohnert Park · Plumbing Contractor (C-36)
ORION HOMES INCORPORATEDPetaluma · General Building Contractor (B)
ORNELAS CONSTRUCTION AND REMODELING INCSanta Rosa · General Building Contractor (B) · Roofing Contractor (C-39)Kitchen remodeling · Bathroom remodeling · Interior painting
ORTIZ & SON'S CONSTRUCTIONWindsor · General Building Contractor (B)
ORTIZ CONSTRUCTIONSanta Rosa · General Building Contractor (B)
ORTIZ CUSTOM BUILDERS INCSanta Rosa · General Building Contractor (B)
ORTIZ ELECTRICGlen Ellen · Electrical Contractor (C-10)
OSBALDO CONSTRUCTION INCRohnert Park · General Building Contractor (B)
OSPREY ELECTRICWindsor · Electrical Contractor (C-10)Electrical repairs · Lighting solutions · Ceiling fans
OSRODZ CONSTRUCTION SERVICESRohnert Park · General Building Contractor (B)
OSTRAND CONSTRUCTIONRohnert Park · General Building Contractor (B)
OTS GENERAL CONTRACTORSPetaluma · General Building Contractor (B)
OTTENSMEYER JOHN PAINTINGRohnert Park · Painting Contractor (C-33)
OUTDOOR ENVIRONMENTSCotati · Landscaping Contractor (C-27)
OUTLANDER CONSTRUCTION INCCotati · General Building Contractor (B)
OUTSIDE THE BOX DESIGN & DRAFTING SERVICES LLCSanta Rosa · General Building Contractor (B)
OVER AND UNDER CONSTRUCTION INCSanta Rosa · General Engineering Contractor (A)
OVERHEAD DOOR CO OF SANTA ROSA INCSanta Rosa · Specialty ContractorCommercial door installation · Commercial door repair · Residential door installation
OVERTON HOMESPetaluma · General Building Contractor (B)
OWENS JOHN SERVICES INCPetaluma · General Building Contractor (B) · Specialty Contractor · Electrical Contractor (C-10) · HVAC Contractor (C-20) · Plumbing Contractor (C-36)
OWINGS DESIGN BUILDSonoma · General Building Contractor (B)
OX LANDSCAPE SERVICESSanta Rosa · Landscaping Contractor (C-27)

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