Waterproofing Contractors in San Francisco, California
Basement waterproofing and foundation moisture control..
San Francisco's dense urban housing and fog climate create specialized roofing and remodeling contractor demand.
Water intrusion through basement walls and floors is one of the most common and damaging residential problems. Waterproofing contractors address this through interior drainage systems (French drains and sump pumps), exterior excavation and membrane application, crack injection, and vapor barriers. The right approach depends on the source — hydrostatic pressure from a high water table requires different solutions than surface water from poor grading or gutter discharge. A thorough assessment before quoting ensures the solution addresses the root cause rather than just the symptoms.
14
Listed contractors
$3k–$15k
Typical cost
What to look for when hiring a waterproofing contractor
- ✓Ask the contractor to diagnose the water source before proposing a solution.
- ✓Get a transferable lifetime warranty in writing — this matters at resale.
- ✓Confirm the bid includes all components: drainage, sump pump, vapor barrier, and any exterior work.
- ✓Ask about their experience with your foundation type (poured concrete, block, stone).
Waterproofing contractors in San Francisco(14 listed)
How much does waterproofing cost in San Francisco?
Interior French drain + sump pump: $3,000–$8,000. Exterior waterproofing: $8,000–$15,000+. Crack injection: $300–$800 per crack. Full perimeter systems cost more.
Waterproofing contractors in San Francisco — FAQ
How many waterproofing contractors are in San Francisco?
EdgeLocal lists 14 licensed waterproofing contractors in San Francisco, California. All listings are sourced from state licensing registries.
What is the average rating for waterproofing contractors in San Francisco?
Waterproofing contractors in San Francisco are listed on EdgeLocal with ratings sourced from Google Business profiles. Use the directory to compare rated contractors near you.
Do waterproofing contractors in San Francisco need to be licensed?
Yes. California requires waterproofing contractors to hold a valid state license. Always verify a contractor's license is current and in good standing before signing any contract or allowing work to begin.
How do I find a reliable waterproofing contractor in San Francisco?
Start by verifying the contractor holds a valid California license. Check their Google rating and read reviews. Get at least three written estimates. Confirm they carry general liability and workers' compensation insurance. Ask for references from recent San Francisco jobs.