Basement Waterproofing Cost in 94121 (San Francisco, CA) — 2026 Pricing
Homeowners in zip code 94121 pay $2,000–$15,000 for basement waterproofing. Interior systems from $2,000; exterior excavation $8,000–$15,000. Get your free quote today.
$2,000–$15,000
Basement Waterproofing in 94121 • Updated July 2026
Basement Waterproofing in Zip Code 94121
Professional basement waterproofing with interior and exterior drainage systems, sump pump installation, foundation sealing, and moisture barrier installation to permanently stop water intrusion. Our licensed contractors provide fast, reliable service throughout the 94121 area in San Francisco, San Francisco County.
Call (916) 476-7689 for an immediate quote or fill out the form below for a detailed estimate.