Contra Costa County companies starting with O

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

O BAY CONSTRUCTIONEl Sobrante · General Building Contractor (B)
O C M DEVELOPERS INCDiscovery Bay · General Building Contractor (B)
O M B REMODELING & CUSTOM TRIMAntioch · General Building Contractor (B)
O P FRAMERS INCDiscovery Bay · General Building Contractor (B)
O S J ELECTRIC LLCLafayette · Electrical Contractor (C-10)
O'BRIEN CONTRACTORSDiscovery Bay · General Building Contractor (B)
O'BRIEN MICHAEL TMartinez · General Building Contractor (B)
O'CONNELL INTERIOR PAINTINGKensington · Painting Contractor (C-33)
O'CONNELL RAYMOND AConcord · Painting Contractor (C-33)
O'HARA SCOTT CONSTRUCTION INCMartinez · General Engineering Contractor (A) · General Building Contractor (B)
O'PRO CONSTRUCTION INCPittsburg · General Building Contractor (B)
O'REILLY ELECTRIC INCMartinez · Electrical Contractor (C-10)
O'RYAN CONSTRUCTION SOLUTIONS INCConcord · General Building Contractor (B)
O'SULLIVAN & SON CONSTRUCTION INCSan Ramon · General Building Contractor (B)
OAK & IRON BUILDWORKSSan Pablo · General Building Contractor (B)
OAK CONSTRUCTIONRichmond · General Building Contractor (B)
OAK CREEK CONTRACTORS INCDanville · General Building Contractor (B)
OAK GROVE TREE CAREBay Point · Specialty Contractor
OAK KNOLL VERTICAL LLCConcord · General Building Contractor (B)
OAK MOUNTAIN CABINETSWalnut Creek · General Building Contractor (B) · Painting Contractor (C-33)
OAK ROOTS LANDSCAPE INCMartinez · Landscaping Contractor (C-27)
OAKES TOM WOODWORKS INCOakley · Cabinet, Millwork & Finish Carpentry (C-6)
OAKLEY HEATING AND AIR LLCOakley · HVAC Contractor (C-20)
OAKMOUNT CONCRETEPittsburg · General Engineering Contractor (A) · Concrete Contractor (C-8) · Landscaping Contractor (C-27)
OAKPLANT LANDSCAPING INCConcord · Landscaping Contractor (C-27)
OASIS CONSTRUCTIONPleasant Hill · General Building Contractor (B)
OCAMPO JORGE LANDSCAPINGRichmond · Landscaping Contractor (C-27)
OCEAN C C POOL & SPA SERVICE & REPAIRSAntioch · Specialty Contractor
OCEANFRONT CONSTRUCTION INCRichmond · General Building Contractor (B)
OCHOA PAINTINGPittsburg · Painting Contractor (C-33)
OCHOA'S ART TILE DESIGNING INCPacheco · Tile Contractor (C-54)
ODEH ELECTRICAL & SECURITY INCSan Ramon · Electrical Contractor (C-10)
ODOM JIMMY A GENERAL BUILDING CONTRACTORAntioch · General Building Contractor (B)
ODYSSEY BUILDERSClayton · General Building Contractor (B)Odyssey Builders is a construction company based in Clayton, California.
OFFICE STORAGE SYSTEMS INCWalnut Creek · General Building Contractor (B) · Low Voltage Systems Contractor (C-7)
OG FLOORS INCRichmond · Flooring Contractor (C-15)
OG G&S PAVING INCOakley · Earthwork & Paving Contractor (C-12)Asphalt Paving · Seal Coat & Slurry Seal · Asphalt Repair & Patching
OG PRO CONSTRUCTION INCAntioch · General Building Contractor (B)
OGEE MILLWORK LLCRichmond · General Building Contractor (B)
OHLSON CONSTRUCTION SERVICES INCClayton · General Building Contractor (B)
OHMS ELECTRICConcord · Electrical Contractor (C-10)Electrical Panels · Electrical Repair · Emergency Services
OJEDA'SPinole · General Building Contractor (B)
OLAS POOL SERVICES LLCMartinez · Specialty Contractor
OLD SCHOOL INNOVATION FLOORING INCConcord · Flooring Contractor (C-15)
OLD TOWN CONTRACTORS INCConcord · General Building Contractor (B) · Roofing Contractor (C-39)
OLD TOWN ELECTRICAL INCRichmond · Electrical Contractor (C-10)
OLDROYD NORM CONCRETEDanville · Concrete Contractor (C-8)
OLEG MAKAROVSKIYPleasant Hill · Plumbing Contractor (C-36) · Specialty Contractor
OLEKSII KOZIURENKOConcord · General Building Contractor (B) · HVAC Contractor (C-20)
OLESON DEVELOPMENTBethel Island · General Building Contractor (B)
OLIVAREZ LANDSCAPEBrentwood · Landscaping Contractor (C-27)
OLIVE RENOVATION INCBrentwood · General Building Contractor (B)
OLIVER & COMPANY INCRichmond · General Building Contractor (B)Construction · Management · Development
OLIVERO PLUMBING COMPANY INCEl Cerrito · Plumbing Contractor (C-36)Plumbing repairs and maintenance · Drain cleaning · Sewer line repairs and replacements
OLSON BROS INCEl Sobrante · General Building Contractor (B)
OLSON RODD PAINTINGWalnut Creek · Painting Contractor (C-33)
OLSSON PLUMBING COMPANYDanville · Specialty Contractor · HVAC Contractor (C-20) · Plumbing Contractor (C-36) · Sheet Metal Contractor (C-43)
OLUFSON GARDEN DESIGNLafayette · Landscaping Contractor (C-27)
OLY LANDSCAPING CONSTRUCTION INCPittsburg · Landscaping Contractor (C-27)
OMAR'S FENCES LLCRichmond · General Building Contractor (B) · Fencing Contractor (C-13)
OMARI AMED SConcord · General Building Contractor (B)
OMEGA BLINDS & SHUTTERSAntioch · Specialty Contractor
OMEGA PAVER SERVICES INCEl Sobrante · Specialty Contractor
OMNI ALARM SOLUTIONS INCConcord · Electrical Contractor (C-10)CCTV system repair · Burglar alarm repair · Burglar alarm upgrades and additions
OMNI PAINTING AND WATERPROOFING INCKensington · General Building Contractor (B) · Painting Contractor (C-33)
ON A ROLL PAVER SERVICEConcord · Landscaping Contractor (C-27) · Specialty Contractor
ON POINT BUILDERS GENERAL CONTRACTORSan Pablo · General Building Contractor (B)
ON POINT BUILDING SERVICESPoint Richmond · General Building Contractor (B)
ON SITE WOOD WIZARD INCMartinez · Cabinet, Millwork & Finish Carpentry (C-6)Furniture restoration · Furniture repair · Cabinet restoration
ON THE ROCK CONSTRUCTION INCOakley · General Building Contractor (B)
ON TOP CONSTRUCTIONOakley · General Building Contractor (B) · Tile Contractor (C-54)
ON TRACK REMODELINGOrinda · General Building Contractor (B)
ONE & ONLY ELECTRICAL SERVICE INCWalnut Creek · Electrical Contractor (C-10)
ONE HOUR HEATING & AIR CONDITIONINGSan Ramon · HVAC Contractor (C-20)
ONE HOUR HEATING AND AIR CONDITIONING OF PLEASANT HILLPleasant Hill · HVAC Contractor (C-20)
ONE STOP CONCRETE CONSTRUCTIONAntioch · Concrete Contractor (C-8)
ONE STOP REMODEL AND BUILDINGConcord · General Building Contractor (B)
ONE STOP SHOP CONSTRUCTIONMartinez · General Building Contractor (B)
ONESOURCE CLEANING CONSTRUCTION CLEAN UPEl Cerrito · Specialty Contractor
ONNIT ELECTRIC INCAntioch · Electrical Contractor (C-10)
ONSITE PAINTING AND DECORATINGConcord · Painting Contractor (C-33)
ONY HOMES GENERAL CONTRACTORS LLCAlamo · General Building Contractor (B)
OP PRESSURE WASHINGDanville · Specialty Contractor
OPALPROP CONSTRUCTION INCSan Ramon · General Building Contractor (B)
OPENING TECHNOLOGIES INCPittsburg · General Building Contractor (B) · Specialty Contractor
OPERATIONAL TECHNOLOGY INTEGRATORSConcord · Low Voltage Systems Contractor (C-7)
OPTIMIZ3Richmond · General Building Contractor (B)
OPTIMUM FLOORINGOakley · Flooring Contractor (C-15)
OPTIMUM TILEWORK INCBrentwood · Tile Contractor (C-54)
OPTIVEST BUILD INCWalnut Creek · General Building Contractor (B)
OPULENS CONSTRUCTION INCRichmond · General Building Contractor (B)
OQP CORPORATIONRichmond · Painting Contractor (C-33)
ORDAZ GENERAL MARBLE & GRANITEConcord · Tile Contractor (C-54)Cultured marble · Cultured onyx · Cultured granite
ORFALI CONSTRUCTIONRichmond · General Building Contractor (B) · Electrical Contractor (C-10) · Solar Contractor (C-46)
ORIGIN MECHANICAL & HVAC INCPleasant Hill · HVAC Contractor (C-20)
ORLANDO CONSTRUCTIONMartinez · General Building Contractor (B)
ORMAN & ASSOCIATES INCAlamo · General Engineering Contractor (A) · General Building Contractor (B) · Specialty Contractor
ORNAMENTAL METAL DESIGNConcord · Specialty Contractor
ORNELAS PLUMBING INCPittsburg · Plumbing Contractor (C-36)
OROCSTONE LLCAntioch · General Building Contractor (B)
OROZCO AND SONS CONCRETE LLCAntioch · Concrete Contractor (C-8)
OROZCO JARED GENERAL CONTRACTORConcord · General Building Contractor (B) · Tile Contractor (C-54)
OROZCO TILE AND GRANITEHercules · Tile Contractor (C-54)
ORTA & SONS PAINTING SERVICES INCORPORATEDPittsburg · Painting Contractor (C-33)
ORTA CONSTRUCTION & RENOVATION INCPittsburg · General Building Contractor (B)
ORTA LEGACY PAINTING INCBrentwood · Painting Contractor (C-33)
ORTEGA CARPENTRYConcord · Cabinet, Millwork & Finish Carpentry (C-6)
ORTEGA CONSTRUCTIONRichmond · General Building Contractor (B)
ORTEGA PLUMBING & ROOTER LLCRichmond · Plumbing Contractor (C-36) · Specialty Contractor
ORTEGA STRUCTURAL FRAME INCConcord · Cabinet, Millwork & Finish Carpentry (C-6)
ORTIZ GENERAL CONTRACTOR INCHercules · General Building Contractor (B)
ORTIZ GROUP LLC THEConcord · General Building Contractor (B)Program design · Program management · Operations and program implementation
ORTIZ LORI J WOOD FLOORSMartinez · Flooring Contractor (C-15)
ORTIZ TILERichmond · Tile Contractor (C-54)
OS1 CONSTRUCTION INCRichmond · General Building Contractor (B) · Roofing Contractor (C-39)
OSBORNE DEAN FLOORINGAntioch · Flooring Contractor (C-15)
OSCAR LANDSCAPING INCAlamo · General Building Contractor (B) · Landscaping Contractor (C-27)
OSCAR MEJIA PAINTINGRichmond · Painting Contractor (C-33)
OSEGUERA MARIO CONSTRUCTIONOakley · General Building Contractor (B)
OSO CONSTRUCTIONPinole · General Building Contractor (B)
OTB CONSTRUCTIONAntioch · General Engineering Contractor (A) · General Building Contractor (B)
OTIS CONSTRUCTION INCByron · General Building Contractor (B)
OTTER SERVICES HVAC LLCPleasant Hill · HVAC Contractor (C-20)
OTTO & SONS CONSTRUCTIONAntioch · General Building Contractor (B)
OUNGOULIAN SEMIKOrinda · General Building Contractor (B)
OUT OF ORDINARY DEVELOPMENT CONSTRUCTION INCWalnut Creek · General Building Contractor (B)
OUTDOOR ELECTRIC LLCBrentwood · Electrical Contractor (C-10)
OUTLINE GENERAL CONTRACTORS INCEl Cerrito · General Building Contractor (B)Design-build construction · Residential remodeling · Commercial remodeling
OVERAA C & CORichmond · General Engineering Contractor (A) · General Building Contractor (B)
OVERALL HANDYMAN INC THEOakley · General Building Contractor (B)
OVICO INCAlamo · General Building Contractor (B) · Electrical Contractor (C-10) · Plumbing Contractor (C-36)
OWL AND THE BEAR PAINTING PRO THEPittsburg · Painting Contractor (C-33)
OZMENT BUILD TO SUIT CONSTOakley · General Building Contractor (B)

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