Sonoma County companies A–Z

5,363 companies, from California license records. Check any of them on the state's license lookup before you hire.

NILSEN CONSTRUCTIONPetaluma · General Building Contractor (B)
NISSI ELECTRICRohnert Park · Electrical Contractor (C-10)
NO LIMITS CONSTRUCTIONSanta Rosa Valley · General Building Contractor (B)
NOBI DESIGN BUILD LLCCloverdale · General Building Contractor (B)
NOBLES THOMASSebastopol · General Building Contractor (B)
NOEL'S PAINTING AND DECORATINGSonoma · Painting Contractor (C-33)
NOONAN CONSTRUCTIONForestville · General Building Contractor (B)
NOR - CAL PAINTING COSanta Rosa · Painting Contractor (C-33)
NOR CAL EXCAVATING & TRUCKINGWindsor · General Engineering Contractor (A)
NOR CAL GLASS PRODUCTS INCSanta Rosa · Glazing Contractor (C-17)Residential Glass · Commercial Glass · Mirrors
NOR CAL MASTER PLUMBING INCSanta Rosa · Plumbing Contractor (C-36)
NOR CAL SOLAR CONSTRUCTIONPetaluma · General Building Contractor (B) · Specialty Contractor
NOR-CAL PUMPWORKSPetaluma · Specialty Contractor
NOR-CAL PUMPWORKS LLCPetaluma · Earthwork & Paving Contractor (C-12) · Specialty Contractor
NORCAL ELECTRICSebastopol · Electrical Contractor (C-10)
NORCAL HVACCotati · HVAC Contractor (C-20)
NORCAL MAINTENANCE INCWindsor · Specialty ContractorGutter Installation · Gutter Cleaning · Roof Moss Removal
NORCAL PROPERTY CONSTRUCTIONRohnert Park · General Building Contractor (B)
NORCAL SUPERIOR SYSTEMS INCPetaluma · Plumbing Contractor (C-36)
NORDBY CONSTRUCTION COSanta Rosa · General Engineering Contractor (A) · General Building Contractor (B)
NORDBY CRAIG ASanta Rosa · General Engineering Contractor (A) · General Building Contractor (B)
NORDBY SIGNATURE HOMES INCSanta Rosa · General Engineering Contractor (A) · General Building Contractor (B)
NORDBY WINE CAVES INCSanta Rosa · General Engineering Contractor (A) · General Building Contractor (B)Wine Cave Construction · Tasting Room Construction · Pre-construction Process
NORDIC COLORSWindsor · Painting Contractor (C-33)Commercial Painting · Residential Painting · Staining
NORDIC CONTRACTORS LIMITEDSanta Rosa · General Building Contractor (B)
NORDIN EXCAVATINGSanta Rosa · General Engineering Contractor (A)
NORM'S ELECTRIC SERVICESebastopol · Electrical Contractor (C-10)
NORM'S WOODWORKSPetaluma · Cabinet, Millwork & Finish Carpentry (C-6)
NORMAN BUILDERSPetaluma · General Building Contractor (B)
NORSO QUALITY PAINTING LLCSanta Rosa · Painting Contractor (C-33)
NORTH BAY A V S DESIGNSanta Rosa · Low Voltage Systems Contractor (C-7) · Electrical Contractor (C-10)
NORTH BAY ACOUSTICSSebastopol · Insulation & Acoustical Contractor (C-2)
NORTH BAY ADU & ADDITIONSSanta Rosa · General Building Contractor (B)
NORTH BAY AQUATICSGeyserville · Solar Contractor (C-46) · Swimming Pool Contractor (C-53)
NORTH BAY CABINETS & INSTALLATION INCSanta Rosa · General Building Contractor (B) · Cabinet, Millwork & Finish Carpentry (C-6)
NORTH BAY CARPENTRYSanta Rosa · General Building Contractor (B)
NORTH BAY COMFORT INCSanta Rosa · HVAC Contractor (C-20)
NORTH BAY COMMERCIAL SERVICES INCSanta Rosa · HVAC Contractor (C-20)
NORTH BAY CONCRETE INCWindsor · Concrete Contractor (C-8)
NORTH BAY CONSTRUCTION SERVICESWindsor · General Engineering Contractor (A)
NORTH BAY DRYWALL & CONSTRUCTIONCotati · General Building Contractor (B) · Drywall Contractor (C-9)
NORTH BAY ELECTRICWindsor · Electrical Contractor (C-10)
NORTH BAY ELEVATORSanta Rosa · Specialty Contractor
NORTH BAY EXCAVATION INCValley Ford · General Engineering Contractor (A)
NORTH BAY FARM AND GARDENSanta Rosa · Landscaping Contractor (C-27)
NORTH BAY FENCE BUILDERPetaluma · Fencing Contractor (C-13)Wood Fencing · Retaining Walls · Gates
NORTH BAY FLOORING INCSanta Rosa · General Building Contractor (B) · Flooring Contractor (C-15)Flooring · Carpeting · LVT
NORTH BAY GRADING AND PAVINGPetaluma · General Engineering Contractor (A)
NORTH BAY GUNITE INCSebastopol · General Building Contractor (B) · Swimming Pool Contractor (C-53)
NORTH BAY LANDSCAPE MANAGEMENT INCPetaluma · General Building Contractor (B) · Landscaping Contractor (C-27)
NORTH BAY METAL FABRICATIONSanta Rosa · Specialty Contractor
NORTH BAY OVERHEAD DOORS INCPetaluma · Specialty Contractor
NORTH BAY PACIFIC INSULATORS LLCSanta Rosa · Insulation & Acoustical Contractor (C-2)
NORTH BAY PLATINUM PLUMBING INCSanta Rosa · Plumbing Contractor (C-36)
NORTH BAY PLUMBING & ROOTER SERVICESanta Rosa · Plumbing Contractor (C-36)Drain Cleaning · Drain Snake · Video Pipe Inspection
NORTH BAY PREMIUM PAINTING LLCRohnert Park · Painting Contractor (C-33)
NORTH BAY REHABILITATION SERVICES INCRohnert Park · Landscaping Contractor (C-27)
NORTH BAY SUNSPACE INCCotati · General Building Contractor (B)
NORTH BAY TREE SERVICECotati · Specialty Contractor
NORTH CAL BUILDERSPetaluma · General Building Contractor (B)
NORTH CAL CONCRETE CONSTRUCTIONPetaluma · Concrete Contractor (C-8) · Landscaping Contractor (C-27)
NORTH COAST COATINGSPetaluma · Painting Contractor (C-33)
NORTH COAST CONCRETE INCSanta Rosa · Concrete Contractor (C-8)Concrete contractor serving commercial, industrial, and residential projects, with a gallery of completed work and free estimates.
NORTH COAST CONTRACTING LLCSanta Rosa · General Building Contractor (B)
NORTH COAST CUSTOM BUILDERSebastopol · General Building Contractor (B)
NORTH COAST ELECTRICAL SERVICESForestville · Electrical Contractor (C-10)
NORTH COAST ROOFING LLCWindsor · Roofing Contractor (C-39)
NORTH COAST SOLARSanta Rosa · General Building Contractor (B) · Solar Contractor (C-46)
NORTH COAST STEEL INCWindsor · Steel Contractor (C-50, C-51)
NORTH COAST TILE & STONE INCSanta Rosa · Tile Contractor (C-54)Tile · Granite · Slab
NORTH COAST WATERPROOFING INCSonoma · Painting Contractor (C-33)Below/Above Grade Waterproofing · Deck Coatings · Sealants/Caulking
NORTH COAST WATERWORKS INCWindsor · General Building Contractor (B) · Solar Contractor (C-46) · Specialty Contractor
NORTH COUNTIES DRYWALL INCSonoma · General Building Contractor (B) · Insulation & Acoustical Contractor (C-2) · Drywall Contractor (C-9) · Lathing & Plastering Contractor (C-35)
NORTH END PLUMBING HEATING & AIRSanta Rosa · HVAC Contractor (C-20) · Plumbing Contractor (C-36)
NORTH HILLS CONSTRUCTIONSanta Rosa · General Building Contractor (B)
NORTH SKY FIRE PROTECTIONPenngrove · Fire Protection Contractor (C-16)
NORTH SUN CONSTRUCTIONSanta Rosa · General Building Contractor (B)
NORTH WEST PLUMBINGSanta Rosa · Plumbing Contractor (C-36)
NORTHBAY CRAFTSMEN INCPetaluma · General Building Contractor (B)Kitchen remodeling · Bathroom renovation · Custom home construction
NORTHBAY DIAMON - FUSIONSanta Rosa · Specialty Contractor
NORTHBAY GARAGE DOORSRohnert Park · Specialty Contractor
NORTHBAY MECHANICAL INCPetaluma · Electrical Contractor (C-10) · HVAC Contractor (C-20)
NORTHBAY ROOFING & GUTTERS INCSanta Rosa · Roofing Contractor (C-39) · Sheet Metal Contractor (C-43)
NORTHBAY TECHNOLOGY COMPANYHealdsburg · Low Voltage Systems Contractor (C-7)
NORTHBAY WELL AND PUMP LLCPetaluma · Specialty Contractor
NORTHBOUND PLUMBINGSanta Rosa · Plumbing Contractor (C-36)
NORTHEN PAINTINGSanta Rosa · Painting Contractor (C-33)
NORTHERN CALIFORNIA POWER & EQUIPMENT CO INCHealdsburg · General Engineering Contractor (A) · General Building Contractor (B)
NORTHERN CONSTRUCTIONSSonoma · General Building Contractor (B) · Concrete Contractor (C-8)
NORTHERN ELECTRIC INCSanta Rosa · Electrical Contractor (C-10)
NORTHERN HILLS CONSTRUCTION LLCGuerneville · General Building Contractor (B)
NORTHERN LIGHT TREE LLCBodega · Specialty Contractor
NORTHERN LIGHTING AND ELECTRICSebastopol · Electrical Contractor (C-10)
NORTHERN LIGHTS ELECTRICSonoma · Electrical Contractor (C-10)
NORTHERN OAKS LANDSCAPE LLCSanta Rosa · Landscaping Contractor (C-27)
NORTHERN OASIS POOL SERVICESPetaluma · Specialty Contractor
NORTHERN PACIFIC DRYWALL INCSanta Rosa · Drywall Contractor (C-9)
NORTHERN PACIFIC FIRE PROTECTION INCWindsor · Fire Protection Contractor (C-16)
NORTHERN PACIFIC POWER SYSTEMS INCSanta Rosa · General Building Contractor (B) · Electrical Contractor (C-10)Rooftop solar · Solar-led electrification · Gas system replacement
NORTHERN PACIFIC ROOFING INCPetaluma · General Building Contractor (B) · Roofing Contractor (C-39)Roof replacement · Roof repair · Roof inspection
NORTHERN PLUMBINGRohnert Park · Plumbing Contractor (C-36)
NORTHGATE COMPANY INCRohnert Park · Specialty Contractor
NORTHGATES IN MOTION INCRohnert Park · Specialty ContractorGate design · Gate installation · Gate maintenance
NORTHSTAR CONCRETE CONSTRUCTIONSanta Rosa · Concrete Contractor (C-8)
NORTHVIEW LANDSCAPING INCWindsor · Landscaping Contractor (C-27)
NORTHWEST ELECTRIC INCHealdsburg · Electrical Contractor (C-10)
NORTHWEST GENERAL ENGINEERING LLCSanta Rosa · General Engineering Contractor (A) · Specialty Contractor
NOVARA LANDSCAPE AND CONSTRUCTIONPetaluma · Landscaping Contractor (C-27)
NOVATO FENCESanta Rosa · Fencing Contractor (C-13)
NP PLUMBINGWindsor · Plumbing Contractor (C-36)
NR ELECTRICPetaluma · Electrical Contractor (C-10)
NUCLEUS PERMACULTURESebastopol · Landscaping Contractor (C-27)
NUNEZ CONSTRUCTIONSanta Rosa · General Building Contractor (B)
NUNEZ QUALITY PAINTINGSanta Rosa · Painting Contractor (C-33)
NUNLEY ENGINEERING INCSanta Rosa · General Engineering Contractor (A)
NYBERG LANDSCAPING INCORPORATEDSonoma · Landscaping Contractor (C-27)Landscape maintenance · Landscape installation · Christmas trees
NYSTROM LANDSCAPEFulton · Landscaping Contractor (C-27)
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)

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