Under The House.

Under The House works beneath Sonoma County homes, handling moisture and underground water problems in crawl spaces. Services run from crawl space cleaning to full encapsulation with a 22 mil system, plus moisture barriers, fiberglass insulation, sub-floor post repairs, channel drains and crawl space drainage systems at $35 per linear foot. A new sump pump system installation starts at $1,680. It targets flooding during rainstorms, mold from condensation and the uneven floors that can follow. Free inspections are offered, and it states California contractor license number 1097702. Rated 5 from 73 Google reviews, all five stars. Its sump pump installations use a submersible pump, with lava rocks and a filter sock to filter water in the basin and drain pipe. A 10 mil basic moisture barrier is offered alongside the 22 mil system.