Derry, NH · Right next door
Mold & water damage help in Derry, NH
Derry’s honest answer on mold and water damage, straight from the owner. Windham is right next door, so Derry is one of our fastest service areas.
Background: Beaver Lake, Derry NH · Photo by John Phelan, CC BY-SA 4.0 via Wikimedia Commons
Around Derry
What we see in different parts of town
Derry has everything from 1800s farmhouses to new subdivisions, and moisture shows up differently in each.
Downtown & older homes
Older homes near downtown and in East Derry often have stone or block foundations that let groundwater seep in, so damp basements and musty smells are common.
Around Beaver Lake
Lake-area homes deal with higher humidity and lower-level moisture, especially in finished basements and crawlspaces.
Newer subdivisions
Homes off Route 28 and Route 102 often have finished lower levels. A failed sump pump or water heater can soak the drywall from behind.
Capes & colonials
Classic Derry capes and colonials get attic mold from ice dams and bathroom fans venting into the attic.
Derry homeowner notes
What’s happening in Derry, and what it means for your home
Updated October 2026 · Source: Town of Derry
Water main shutoffs
Derry Public Works has posted recent water service interruptions on streets like Manchester Ave and Claremont Ave. When water comes back on, pressure surges can loosen fittings, so check under sinks, around the water heater and behind the washer for drips.
Get storm alerts
Derry offers CodeRED emergency alerts. A heads-up before heavy rain or a nor’easter gives you time to clear gutters, test your sump pump and move valuables off the basement floor.
Rebuilding after water damage?
Once mold or water damage is cleaned up, putting walls and floors back may need a permit from the Town of Derry. Check before you rebuild so the work is documented if you ever sell.
Why Derry basements hide mold
3 signs to call before it spreads
1
A musty smell
Odor usually means moisture behind walls or under flooring, even when nothing is visible.
2
Water every spring
Snowmelt and heavy rain that reach the basement each year leave framing and drywall damp.
3
Stains at the base of walls
Brown or dark lines near the floor often mean water wicked up the drywall from below.
The owner, not a call center
Jeremy comes out himself, tells you honestly what it needs, and gives a written price before any work. No surprise bills after insurance pays. Sellers can pay at closing, and the 3-year warranty transfers if you sell.
✓ Usually same day
✓ IICRC certified
✓ Pay at closing for sellers
✓ 3-year transferable warranty
Derry questions
How fast can you get to Derry?
Derry borders Windham, so it’s one of our quickest drives. Usually same day, and call or text anytime for water emergencies.
My Derry basement gets water every spring. Can you help?
Yes. Jeremy dries it properly, checks behind finished walls for hidden mold, and gives practical advice on grading, gutters, sump pumps and dehumidifiers so it stops repeating.
There’s a musty smell but I can’t see any mold. Should I worry?
A musty smell usually means moisture somewhere you can’t see, often behind drywall or under flooring. Jeremy uses a moisture meter to find it, and if it’s minor he’ll tell you.
Mold showed up in a Derry home inspection. Is the sale in trouble?
Usually not. You get a calm written scope both sides can read, the work is done before closing, sellers can pay at closing, and the 3-year warranty transfers to the buyer.
Water or mold in Derry? Text Jeremy a photo.
Serving all of Derry, including East Derry, the Beaver Lake area and the Route 28 and 102 neighborhoods.