Basement Waterproofing Cost in 95422 (Clearlake, CA) — 2026 Pricing
Homeowners in zip code 95422 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 95422 • Updated July 2026
Basement Waterproofing in Zip Code 95422
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 95422 area in Clearlake, Lake County.
Call (916) 476-7689 for an immediate quote or fill out the form below for a detailed estimate.