Sonoma County contractors & building pros

Companies in Sonoma

A–Z by name. Listed from California public records as of 2026-10-20.

• 02 TREEHOUSE CONSTRUCTIONPetaluma · General Building Contractor (B)
• 3 C BUILDINGSebastopol · General Building Contractor (B)
• 3 D REMODELING & RENOVATIONSanta Rosa · General Building Contractor (B)
• 3D BUILDING COMPANYSanta Rosa · General Building Contractor (B) · Flooring Contractor (C-15)
• 3M CONSTRUCTION COMPANYPetaluma · General Building Contractor (B)
• 4 AM SYSTEMSPetaluma · Low Voltage Systems Contractor (C-7)
• 5TH GENERATION PAINTINGPetaluma · Painting Contractor (C-33)
• 21ST CENTURY BUILDERPetaluma · General Building Contractor (B)
• 101 HAULING CORPRohnert Park · General Building Contractor (B) · Demolition Contractor (C-21)Foreclosure, Eviction & Probate · Clean Outs · Construction & Remodel Clean Up
• 101 PLUMBING SOLUTIONSPetaluma · Specialty Contractor · Plumbing Contractor (C-36)

See all 5,363 companies A–Z →

Licensed contractors & trades