Vinyl Siding Company in Londonderry, NH

Londonderry, in western Rockingham County, was first settled as Nutfield and chartered in 1722. It is known for its apple orchards, Route 102 runs through it, and part of Manchester-Boston Regional Airport sits inside the town line. It borders Manchester, Auburn, Derry, Windham, Hudson and Litchfield.

The houses we side in Londonderry

According to the U.S. Census Bureau's American Community Survey (2020 to 2024 estimates), Londonderry has about 10,200 homes. The median home in the town was built in 1986. About 3 percent were built before 1940, 38 percent before 1980 and 27 percent in 2000 or later. About 80 percent are single-family houses, 4 percent are in buildings with two to four units, and 86 percent are lived in by their owners.

Housing in Londonderry	Share of homes
Built before 1940	3%
Built before 1980	38%
Built in 2000 or later	27%
Single-family houses	80%
Two to four units	4%
Owner-occupied	86%

Put together, the typical Londonderry siding job is a single-family house from the 1970s through the 1990s that is ready for its first full replacement. Lead-safe work only applies to the houses built before 1978, which is the older part of that range, so it is worth checking the year your house was built before you compare bids.

What we look for on Londonderry houses

These are the problems we expect to find when the old siding comes off a house in Londonderry. Every one of them is checked before the new siding goes on.

Original vinyl that has gone brittle and cracks easily in cold weather.
Loose or missing J-channel and corner posts that let water get behind the panels.
Hardboard, T1-11 or other wood-based panels that have swollen or come apart near the ground.
Decks and porches fastened to the wall, where the siding and flashing behind the ledger board need extra care.

Climate and building code in Londonderry

Londonderry is in Rockingham County, which the energy code places in climate zone 5: long, cold winters with a lot of freeze and thaw. For siding, that means water management matters more than the panel itself. Snow piles against the walls, ice dams push meltwater behind trim, and any gap in the flashing gets tested every winter. New Hampshire moved to the 2024 International Residential Code on July 1, 2026, and kept the 2018 energy code.

Permits in Londonderry

Whether a siding replacement needs a building permit is set by the town, and it can depend on the scope. Before work starts we confirm it with Londonderry's Building and Zoning Enforcement Division. Town permit fees, where they apply, are listed separately on the estimate.

An example ballpark for a Londonderry house

Here is what our Instant Ballpark returns for a two-story house with about 1,500 square feet of wall, one layer of old siding, 14 windows and doors, built after 1978, re-siding with standard vinyl lap siding, with Londonderry entered as the town: $15,200 to $18,100. That is an example to show how the numbers work, not a quote for your house. Your range depends on your own wall area, stories, layers and openings, and the written estimate after a site visit is the number that counts.

This is a ballpark, not a quote. It is not adjusted to your site until someone from Atlas sees it; final pricing comes after a site visit and a written estimate.

What the vinyl siding price includes

Included

Tear-off and disposal of the old siding
New house wrap (house wrap only, never a vapor barrier in above-grade walls)
Standard lap vinyl (the most common horizontal style) with starter strip, J-channel and corners
Aluminum coil-wrapped window, door and trim

Not included

Rotted sheathing or framing repair (priced if found)
Insulation upgrades behind the siding
Gutters
Town permit fees, if your town requires a permit

Atlas work near Londonderry

More for Londonderry homeowners

Common questions

My house was built in 1976. Does that change anything?

Yes. Homes built before 1978 fall under the EPA RRP rule, so the job includes lead-safe setup, containment and cleanup when painted surfaces are disturbed. It is part of the written scope.

Can you replace the siding and the windows at the same time?

Yes. Doing both in one project lets the window flashing and the new siding trim be detailed together. We install replacement window inserts with aluminum capping; full-frame window replacement is priced after a site visit.