Grand Roofing | Roofing Services in San Francisco, CA 94132

We specialize in custom-fabricated, heavy-gauge metal flashing tailored to your roof's specific angles and exposures. Using techniques proven against San Francisco's wind-driven fog and rain, we ensure a durable, watertight seal that prevents leaks at vulnerable intersections like chimneys, skylights, and walls.

We design and install high-capacity gutter systems with oversized downspouts to handle the city's intense seasonal rains. Our service includes correcting improper pitch, removing debris-prone designs, and adding protective guards to prevent overflow and the foundation damage it can cause in SF's hilly landscapes.

San Francisco's microclimates and historic building codes demand specific knowledge. We understand which materials perform best in salty air, how to navigate permits for local historic districts, and how to design for both heavy rain and persistent fog, ensuring a repair that lasts in our unique environment.