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Plumbing in Portsmouth: winter lows around 15°F mean exposed pipes can freeze and burst; 48% of homes in Rockingham County were built before 1980, when galvanized and older pipes were common; flash floods here can back up drains.
In Rockingham County, July highs average about 82°F and January lows about 15°F, with roughly 47 inches of rain a year. Long, cold winters put furnaces and pipes to the test.
Over the last 10 years the National Weather Service recorded damaging thunderstorm winds, hailstorms and flash floods in Rockingham County, with hail up to 1.75 inches across. After a storm, a quick roof and gutter check catches damage before it turns into a leak.
The typical home in Rockingham County was built around 1981, about 45 years ago, and 48% were built before 1980. Homes that age often need updated wiring, plumbing and roofs.
Rockingham County has had 25 federal disaster declarations in the last 25 years, most often for severe storms; the latest was Severe Winter Storm And Flooding (2024).
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Insulate pipes in crawl spaces and outside walls, drip faucets on the coldest nights, and know where your main shut-off is.
Galvanized steel and polybutylene pipes are past their life in most homes — low pressure, rusty water or repeated leaks are the signs.
Yes if water is spreading or near electrics — turn off the main and choose Emergency when you book; we call you at the first opening.
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