Sierra Roofing & Building | Roofing Services in San Francisco, CA 94111

The first step is a thorough inspection to locate the source, which in our coastal climate is often related to worn flashing, compromised seals around vents or chimneys, or issues from seasonal fog and wind. As a licensed local contractor, we provide a free inspection and moisture control assessment. We'll identify whether it's a simple repair or indicates a larger need, like partial re-roofing or improved waterproofing, and provide a clear, upfront quote for the solution.

Yes, we do. As licensed general contractors, guest house or ADU construction is a core service. We manage the entire process, from initial design consultation and securing the necessary San Francisco building permits to foundation work, construction, and final roofing and waterproofing. Our experience with local codes and building practices helps streamline your project for a smooth addition to your property.

Our waterproofing is a complete system. It starts with a detailed inspection to diagnose moisture intrusion. We then may recommend and install interior or exterior solutions, such as sump pumps, French drains, or vapor barriers, and address any necessary structural repairs. Proper waterproofing is crucial here to protect against moisture from fog, ground seepage, and rain, preserving your home's integrity and preventing mold.