Marin home base.
Bay Area reach.
GB Contractors is a Marin-based general contractor with Bay Area reach. Two decades of building in Marin means we know the territory. We also work San Francisco, the Peninsula down to Palo Alto, and the North Bay through Sonoma, Napa, and Solano counties for the right project.
Home base.
San Rafael →
Our home base. Dominican, Sun Valley, Glenwood.
Mill Valley →
Tam Valley, Strawberry, Homestead Valley, Sycamore Park.
Tiburon · Belvedere →
Belvedere Island, Paradise Cay, Old Tiburon waterfront.
Ross →
Phoenix Lake estates, contemporary builds.
Larkspur →
Madrone Canyon, Magnolia, Greenbrae.
Marin County (overview) →
Every Marin city we serve, from Sausalito to Novato.
Common questions.
What areas does GB Contractors serve?
Marin County (San Rafael, Mill Valley, Tiburon, Ross, Larkspur and more), San Francisco, Palo Alto and the Peninsula, and the North Bay through Sonoma, Napa, and Solano counties.
Does GB Contractors travel outside Marin County?
Yes, for the right project. We're Marin-based but regularly work San Francisco, Palo Alto, and wine-country projects in Sonoma and Napa.
Is GB Contractors licensed to work across all these counties?
Yes. CSLB License #992507 (Class B General Building) is valid statewide in California.
Don't see your town?
If you're in the broader Bay Area and the project's right, we'll travel. Tell us where and what.
Start the Conversation →