Basement Waterproofing Cost in 94954 (Petaluma, CA) — 2026 Pricing
Homeowners in zip code 94954 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 94954 • Updated July 2026
Basement Waterproofing in Zip Code 94954
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 94954 area in Petaluma, Sonoma County.
Call (916) 476-7689 for an immediate quote or fill out the form below for a detailed estimate.