Roof Replacement 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 roof 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.

What the housing means for Londonderry roofs

• 27 percent of homes were built in 2000 or later. A house still on its original roof has one layer to strip, which keeps tear-off simple.
• The median Londonderry home was built in 1986. Many of those attics have modest insulation, so if the house gets ice dams we look at air sealing the attic along with the roof.
• 45 percent of Londonderry households heat mainly with oil and 24 percent with propane; 17 percent use utility gas. Heat lost through the ceiling is what melts snow on the roof, so attic leaks cost fuel and feed ice dams.

Ice barrier, ice dams and the code in Londonderry

Londonderry is in Rockingham County, climate zone 5. Where the code's climate table marks ice-dam history, state code section R905.1.2 sets how far up the roof the ice barrier must reach (details). Our Londonderry ballparks include it at the eaves and valleys either way.

Permits in Londonderry

Whether a roof 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 roofing ballpark for Londonderry

Our pricing engine returns $5,800 to $6,100 for one-story ranch, simple gable roof about 40 by 26 feet at a 6-in-12 pitch, one layer off, in architectural asphalt shingles, with travel to Londonderry included. That is an example, not a quote. For your own roof, the Instant Ballpark gives an asphalt shingle ballpark from the same engine, or call or text (603) 688-6096.

What the example includes and leaves out is listed on the roofing cost guide.

We do not have a finished roofing project on the site yet, and we will not show a different kind of job as one.

More for Londonderry homeowners

• Atlas in LondonderryEverything we do in Londonderry.
• RoofingHow we replace and repair roofs.
• Roofing cost guideExample ranges for different roofs.
• Roofing in ManchesterNearby: Manchester, Hillsborough County.
• Roofing in NashuaNearby: Nashua, Hillsborough County.
• Roofing in RaymondNearby: Raymond, Rockingham County.

Common questions