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Our Waterproofing & Building Envelope Services
Keith Weber Company delivers comprehensive waterproofing solutions across San Francisco and the greater Bay Area for homes and commercial buildings alike. Whether you’re facing active leaks or want to prevent future water damage, our experienced team uses proven methods, high-quality advanced materials, and expert craftsmanship to protect your property from foundation to facade.
Waterproofing solutions we are known for!
Flat Roofing
Durable, watertight solutions for flat and low-slope roofs, protecting against ponding water and long-term leaks.
Showers, Saunas, & Steamrooms
We provide expert waterproofing for custom shower pans, saunas, and steam rooms, ensuring these high-humidity areas stay sealed, safe, and built to last.
Basements & Foundations
We use advanced waterproofing membranes, sealants, and protective coatings to stop leaks and seepage before they cause costly damage.
Our Services
"We Protect Your Investment!"
At Keith Weber Company, we specialize in protecting homes and commercial properties from water intrusion with industry-leading waterproofing and building envelope solutions. Serving San Francisco, the Peninsula, South Bay, East Bay, and surrounding communities since 1992, our team provides expert services tailored to the Bay Area’s unique climate and terrain.
Our Services Include:
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Foundation & Below-Grade Waterproofing – Keep basements, crawl spaces, and foundations dry and secure.
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Deck, Balcony & Terrace Waterproofing – Prevent leaks and structural damage on elevated outdoor spaces.
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Facade, Sealant & Joint Systems – Seal vulnerable areas of exterior walls, windows, and expansion joints.
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Diagnostics & Water Intrusion Testing – Identify leak sources with precise inspections and moisture mapping.
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Shower Pans, Saunas & Steam Rooms – Expert waterproofing for high-moisture interior spaces, ensuring lasting protection against leaks, mold, and water damage.
From luxury residences to commercial buildings, Keith Weber Company delivers durable, long-lasting protection designed for the Bay Area.
Protecting Homes and Commercial Buildings from Water Damage Since 1992
Keith Weber Company provides expert waterproofing solutions for residential and commercial properties throughout San Francisco, Palo Alto, San Jose, Oakland, and the greater Bay Area. Our services are designed to prevent leaks, safeguard foundations, and extend the life of your property with proven systems and high-quality materials.
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Foundation & Below-Grade Waterproofing
Water intrusion in basements, crawl spaces, and foundations is a serious threat to both homes and commercial buildings. Our team provides professional below-grade waterproofing in San Francisco and across the Bay Area, using quality, advanced polymer coatings and drainage boards to keep foundations dry and structurally sound.
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Deck, Balcony & Terrace Waterproofing
Exposed decks, balconies, and rooftop terraces are vulnerable to constant moisture and leaks. Keith Weber Company installs advanced membranes and protective systems that prevent water penetration, ensuring long-lasting durability for Bay Area residential and commercial properties.
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Facade, Sealant & Joint Systems
Cracked facades, failed caulking, and deteriorated sealant joints are common sources of leaks in Bay Area buildings. We specialize in facade waterproofing and joint sealing to protect homes, offices, and multi-unit properties from water damage while maintaining structural integrity.
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Diagnostics & Water Intrusion Testing
Finding the true source of a leak requires expertise. Our diagnostics and water intrusion testing services use advanced methods to pinpoint problem areas in San Francisco homes and commercial buildings. We provide accurate assessments and recommend tailored waterproofing solutions that address the root cause.
What Our Clients Say...
Keith Weber Company helped us out with detecting and fixing a basement leak that hit us during the atmospheric river storms. This leak was extremely tricky to find. He did a great job chasing the root cause and fixing it.
Throughout the process he happily explained things and guided us on the phone and on site.
San Jose, CA
Keith Weber Company was our 2nd call during a big storm, roof leaking into a bedroom and gutter pulling away from the house. The first roofer didn't answer. Keith did. He came right over in the rain, climbed up on the roof, cleaned out the gutter (cause of the issue), walked around and inspected the rest of the roof, all for a minimal charge. He didn't push replacing the roof right away, but suggested many types that would work, and a colleague who he trusted could do the work more quickly. Keith really knows his stuff. He's licensed.
San Francisco, CA
Keith Weber Company was great in finding the leak in my house, something that no other contractor had bothered to figure out. I especially liked that Keith gladly shared his knowledge with me over the phone even before he came out to look at my situation. He was very gracious in allowing me to work with him; he is a truly talented tradesperson. Keith arrived exactly when he said he would and charged me a very reasonable price.
Oakland, CA