Rockingham County, New Hampshire
Gutter cleaning, repair and new gutters in Londonderry, NH
Londonderry gets about 46 inches of rain in a normal year, and on about 11 days a year an inch or more falls in a single day. The wettest season is fall (September to November), with about 12.0 inches; the driest is winter (December to February), with 10.9. Off a 1,000-square-foot roof, that comes to about 28,600 gallons a year for the gutters to carry.
Call (866) 228-6229 free call to a gutter contractor serving LondonderryLondonderry: rain and roofs
NOAA station USC00274234, 6 miBars to one scale; the longest is fall (September to November).
By heavy-rain days, Londonderry falls near the middle of the 60 places in New Hampshire on this site (11.2 a year). By the age of its homes it sits among the newest by median year built of the 60 places in New Hampshire on this site (half built by 1983). By first frost it falls near the middle of the 60 places in New Hampshire on this site (October 8).
When to clean gutters in Londonderry
The first fall frost comes around October 8 in a typical year here, and the last spring frost around May 3 (median dates, NOAA normals). A fall cleaning set for the weeks after that frost, when the branches over the house are bare, gets the year’s leaves in one trip; a spring visit follows once the pollen and catkins have come down.
When to clean gutters explains how the trees over a roof change the schedule.
Gutter and downspout size for Londonderry rain
Gutters are sized for the worst few minutes of a storm, not for the year. In Londonderry the five-minute rain expected about once in ten years falls at 6.47 inches an hour (NOAA Atlas 14 Volume 10). At that rate one 2-by-3-inch downspout drains about 1,110 square feet of roof and one 3-by-4-inch downspout about 2,230, by the rule in the Copper Development Association’s design handbook. Try your own roof in the gutter and downspout calculator, which starts from this figure.
Londonderry averages about 67 inches of snow a year (NOAA normals). Snow on a roof brings ice dams: heat escaping from the house melts the snow, and the water refreezes at the cold eave, in the gutter and over it. University of Minnesota Extension puts the cause in the attic, not in the gutter, so a gutter that fills with ice is a symptom; hangers spaced to carry ice and a sound fascia are what the gutter itself needs.
The houses in Londonderry
Half the homes in Londonderry were built by 1983, 43% before 1980 (ACS 2020–2024). At that age a gutter has seen decades of leaves and storms, and the fascia it hangs from has too. On a house built before 1978, replacing more than 20 square feet of painted fascia or trim falls under the EPA’s lead-safe rule, so ask whether the crew is certified.
83% of households own their home, and 60% of homes are detached houses, 18% townhouses. If an association maintains the exterior, the gutters may be its job rather than yours; check before calling.
Hiring in New Hampshire
Before hiring in Londonderry, ask which New Hampshire license or registration the contractor holds and for a certificate of liability insurance. Hiring a gutter contractor
Gutter work in Londonderry
With half the homes built by 1983, replacement gutters and the fascia behind them come up more often here than in newer suburbs. The line takes all of it: