We handle basement waterproofing, crawl space drainage, and sump pump installation so you get a dry foundation without recurring issues, usually in under a week.
Family Owned and Operated
Water across your basement floor after a storm. Damp crawl space air that travels through the house. Cracks that drip during heavy rain. Sump pumps that quit when the power fails. These problems never fix themselves, and small leaks turn into bigger, costlier damage faster than you expect.
The longer moisture stays, the more your home suffers. Wood rots. Mold spreads. Floors buckle. Bills pile up. Your basement becomes a space you avoid, and every forecast feels like a gamble you did not ask to take.
NH Dry Basement LLC delivers basement waterproofing, crawl space waterproofing, and drainage systems More Dover families and businesses can depend on. Since opening, the team has focused on solving moisture problems with honest work, reliable results, and the kind of punctual service small towns expect.
Every job involves real solutions built around your property: sump pumps, battery backups, vapor barrier installation, and dehumidification designed for basements and crawl spaces that stay dry year-round.
This is a family-owned business that shows up on time, explains every step, and stands behind the work. Your home gets the attention it deserves, and the peace of mind that comes with a dry, healthy foundation.
Homeowners dealing with foundation leaks get perimeter drainage, sump pumps, and vapor barriers that stop water intrusion for good.
Waterproofing installed right means no puddles, no dampness, and no musty smells even after heavy storms.
Drainage and vapor barriers designed to handle years of rain, snowmelt, and groundwater without failing.
You stop worrying about the next forecast because the system handles moisture before it becomes a problem.
Our basement stayed dry through the last two major storms, something we haven’t been able to say in years. The crew walked us through every step, answered all our questions, and cleaned up after themselves every single day. The new drainage system and sump pump have given us real peace of mind.
They fixed a crawl space drainage problem three other contractors said was too complicated. The difference in our air quality upstairs is noticeable.
We have 100+ 5-star reviews on
So you can stop worrying about the next storm and start using your basement the way you planned.
We walk your foundation, ask about drainage problems, and show you exactly where moisture enters.
You get a written solution with sump pump specs, drainage routing, and pricing before we touch anything.
We dig the perimeter channel, set the pump, pour concrete, and run water to prove it works.
Full waterproofing plan mapped before any excavation starts.
Vague quotes with no clear scope.
Same experienced crew every visit until the final walkthrough.
Different workers appearing each time.
Sealed seams, proper drainage, work you can see and verify.
Shortcuts taken when nobody's watching.
Sump pump and vapor barrier jobs done on time, not excuses.
Timelines that stretch week after week.
Written guarantees on drainage systems, crawl space sealing, and dehumidification.
Warranties that quietly vanish after signing.
Upfront estimates with no surprise charges or hidden fees
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Vague quotes that change mid-project
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More Dover soil and water-table solutions based on years of field experience
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Generic installs without local site understanding
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Written guarantees on waterproofing and sump pump installations
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Limited or verbal-only warranty promises
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Same-week inspections and fast scheduling for urgent basement problems
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Long waits and slow callbacks during flooding
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Home-town service that treats your property like our own
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Corporate upselling with no personal investment
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We level and compact soil so water flows away from your foundation instead of pooling against walls.
We install perimeter drainage with watertight joints so groundwater is captured and removed before it reaches your basement.
We lay reinforced polyethylene with overlapped seams so crawl space moisture stays trapped below the liner where it belongs.
We add battery backup systems so your sump pump keeps running even when power goes out during heavy storms.
We size and place commercial dehumidifiers so basement humidity stays below mold growth thresholds all year long.
We haul debris and rinse tools daily so your home stays livable and accessible throughout the entire waterproofing project.
From waterproofing to drainage systems, we handle moisture control across the region. Every job uses materials chosen for New England’s freeze-thaw cycles and heavy spring runoff.
Most projects take one to three days depending on system type and space size. Sump pump installations move faster while full perimeter drainage takes longer.
Yes. We install interior drainage channels, exterior french drains, and grading corrections. Each approach addresses different water entry points and can be combined when needed.
We stop work, explain what we found, and discuss repair options before continuing. Hidden rot or cracked footers get addressed first to protect your investment long term.
Yes. You can start with vapor barrier and drainage without sealing vents or adding insulation. Partial solutions still control moisture and reduce humidity effectively.
Test it every three months by pouring water into the pit. Check the battery backup twice a year and replace batteries every four to five years.
Reach out to NH Dry Basement LLC for honest advice, a detailed quote, and waterproofing solutions built to protect More Dover homes from every storm.