Lone Mountain Homes | Earthquake Retrofitting & Foundation Repair in San Francisco

An earthquake retrofit typically includes bolting the house to its foundation and adding plywood shear walls to resist lateral movement. For homes with a crawl space or soft story, we may install new cripple walls or strengthen existing ones. Lone Mountain Homes ensures your retrofit meets the requirements of the Earthquake Brace and Bolt Program, which can also qualify you for a grant. We handle everything from initial inspection to final city approval.

Yes. Water damage from burst pipes or tropical storm flooding can weaken foundations, rot beams, and create conditions for termites. We assess the affected areas, remove damaged wood, treat for dry rot or termites, and replace structural elements like posts, beams, and sill plates. Our team also addresses any foundation settlement caused by the water and ensures the repair meets current building codes.

Absolutely. Retaining walls are common in neighborhoods like Twin Peaks, Nob Hill, and Bernal Heights. We build new walls using concrete, stone, or interlocking blocks, and we repair existing walls that are bowing, cracking, or leaning due to water pressure or soil movement. Our work includes proper drainage to prevent future damage, and we coordinate with the city if permits are needed.