San Rafael Waterproofing | DWC Waterproofing
Expert Waterproofing You Can Trust – Serving San Rafael & the Bay Area
At DWC Waterproofing, we provide reliable waterproofing solutions for decks, shower pans, and other critical areas of residential construction. With over 50 years of combined experience, including 34 years as a licensed general contractor, owner Duncan Wilson brings hands-on expertise to every project. We are based in San Rafael, CA, and serve Marin, San Francisco, Sonoma, and Contra Costa counties.
Our team provides a full range of waterproofing services tailored to your property’s unique needs:
- Decks over living spaces: From initial inspection to full urethane or epoxy application, we ensure your deck is properly waterproofed.
- Walking deck systems: Urethane and epoxy coatings are applied for durable, walkable surfaces.
- Recoat services: Existing decks can be restored with surface preparation, repairs, and fresh coatings.
Recent Projects
- Waterproofed a 350 sq. ft. deck in Peacock Gap in San Rafael using urethane coatings.
- Applied a liquid neoprene coating underneath a pedestal tile system in Corte Madera, CA.
- Applied PREPRUFE to a retaining wall beneath a house in Mill Valley, where soil had been excavated for an added bedroom. PREPRUFE is a waterproofing layer installed prior to the installation of rebar and concrete.
Our background in general contracting and extensive experience give us the unique ability to identify potential problem areas and select the right waterproofing products for each project. We carefully assess the substructure, choose products based on durability and flexibility, and apply them with precision to ensure lasting performance.
We work with homeowners, houseboat owners, and fellow contractors, providing waterproofing solutions for decks over living spaces, foundations, and more. Whether it’s a new deck, a renovation, or a repair, DWC Waterproofing ensures your property is protected with proven waterproofing solutions. Our commitment to quality, combined with decades of construction experience, makes us a trusted choice for residential waterproofing throughout the Bay Area.
We are licensed, bonded, and insured.