Common questions about basement waterproofing
- Does my retaining wall need weep holes OR a perforated
- Does waterproofing basement add value?
- How can I stop water from seeping in through the floor of my basement?
- How can you waterproof a basement wall effectively without hiring a professional?
- How do I find the best basement waterproofing companies near me?
- How do I waterproof or seal a basement foundation wall that leaks?
Bedford basement waterproofing — local context
Bedford basements take on water from the river valley, not the coast. The town sits inland and fully within the Merrimack River watershed at roughly 269 ft elevation, with Sebbins Pond drained by Sebbins Brook and Baboosic Brook flowing toward the Souhegan, a Merrimack tributary (Wikipedia, citing USGS GNIS). That means high groundwater and snowmelt runoff — not tidal flooding — push against your foundation. Hillsborough County soils are loamy glacial till (the NRCS-mapped Pennichuck series), and that slow-draining hardpan holds water against walls (USDA-NRCS Web Soil Survey). Bedford also sits in EPA Radon Zone 2 (EPA Map of Radon Zones), so we test and mitigate while we waterproof. We fix this from the inside: the Forever Dry System — full-perimeter interior drain, a sump per 120 ft, a wall vapor barrier, and a dehumidifier. We don't dig your yard up; exterior excavation is a poor 2–3 year fix, and interior drainage is the durable one. Basement waterproofing runs $3,000–$30,000. See our basement waterproofing and sump pump maintenance pages.
What a recent customer said
"With the crazy wet weather and super high water table this year. Had water just seeping in through the Wall/Floor Joint in basement, that would just NOT stop. Have not had this type of issues in the 30+ years at our house. Had a couple people come in, some just quoted a Sump Pump. But was leaking in at several points along a 30ft wall. 603 Basement was just a bit more. BUT they put in their patented Channel solution along the entire base of the wall, along with Sump Pump…" — John Weber, 5★
Frequently asked questions
Why do Bedford, NH basements get wet if the town isn't on the coast?
Bedford is inland and sits fully within the Merrimack River watershed at about 269 ft elevation, with water features like Sebbins Pond, Sebbins Brook, and Baboosic Brook (per Wikipedia, citing USGS GNIS data). Wet basements here come from high river-valley groundwater and snowmelt runoff pushing against the foundation, not coastal or tidal flooding. We waterproof from the inside with the Forever Dry System.
Does Bedford's soil make basement water problems worse?
Yes. Hillsborough County soils, which include Bedford, are derived from loamy glacial till — for example the NRCS-mapped Pennichuck series, moderately deep soil formed in glacial till over bedrock (USDA-NRCS Web Soil Survey). That dense, slow-draining hardpan holds water against foundation walls, which builds hydrostatic pressure at the floor-wall joint. An interior perimeter drain relieves that pressure.
Should I test for radon when waterproofing a Bedford basement?
It's worth it. Hillsborough County, which contains Bedford, is an EPA Radon Zone 2 — moderate potential, with a predicted average indoor screening level between 2 and 4 pCi/L (EPA Map of Radon Zones). The EPA recommends every home be tested regardless of zone. 603 is a certified radon mitigator (cert RMS-113966), so we can test and address radon alongside the waterproofing work.
Basement Waterproofing in nearby New England towns
More 603 services in Bedford
- Basement Finishing in Bedford, NH
- Crawl Space Encapsulation in Bedford, NH
- Foundation Crack Repair in Bedford, NH
- Radon Mitigation in Bedford, NH



