Termites may seem like a Southern worry, but eastern subterranean termites reach into southern New Hampshire, and Manchester's older, moisture-prone homes offer them a place to settle. They are not as widespread here as in warmer states, which can make them easier to overlook. If you find mud tubes, wings or crumbling wood, call (844) 725-1661. We will connect you with an independent, licensed termite provider in the Manchester area. PestMinistry is a referral service; the provider performs the inspection and treatment.
What lives under New Hampshire soil
The termite found in the region is the eastern subterranean termite. It nests in soil below the frost line and enters buildings via wood in contact with the ground, cracks in foundations and mud tubes. Warm microclimates matter: a boiler room, a heated basement, or a steam pipe along a foundation can keep soil warm and give termites extra feeding time through winter. Because the colonies are smaller and slower in colder climates, damage may take longer to appear but can still become serious.
Manchester structures to watch
- Converted mill and brick buildings with heavy timber beams, wood floors and masonry pockets where moisture can collect.
- Triple-deckers and two-families on the West Side and in the North End, with wooden porches and rear stairs resting on footings.
- Cape and ranch homes in Hallsville, the Highlands and suburban areas with slab sections, additions and finished basements.
- Homes near the Merrimack and Piscataquog rivers where groundwater can run high after spring melt.
- Properties with wood in contact with soil: fences, trellises, decks and firewood stacks.
Clues to notice
Inspect the sill plate and floor joists with a flashlight. Look for narrow tubes on masonry, damaged or bubbled paint near the floor, and wings by basement windows. In older mills and brick buildings, check wooden floor ends where they bear on brick. Carpenter ants are more common in New Hampshire and leave clean shavings, whereas termites leave mud and soil in their galleries, so the distinction matters for treatment.
Treatment options
- Thorough inspection of basement, crawl space, additions and exterior grade.
- Liquid termiticide applied along the foundation and into drilled holes in slabs or masonry, with timing adjusted for frozen soil.
- Bait stations installed around the structure and monitored.
- Moisture correction by fixing leaks, regrading, extending downspouts and installing dehumidifiers.
Ask the provider how they handle stone, brick and granite foundations, which are common in the city and need different drilling and injection techniques than poured concrete.
Keeping termites out
- Keep soil and mulch below sill plates and siding.
- Replace rotted porch posts and stair stringers.
- Maintain gutters and downspouts, especially after ice dam season.
- Stack firewood on racks, away from the house.
- Use a vapor barrier in damp crawl spaces.
Buying a home in Manchester
Home inspections in Manchester may or may not include termite checks, so ask for a separate wood-destroying insect inspection for older properties. Request any record of past treatments.
Do termites live in New Hampshire?
Yes, mainly in the southern part of the state. They are less common than in the South.
Can cold weather kill them?
Cold slows them, but they live below the frost line and in heated structures.
How can I tell termite damage from rot?
Rot is soft and crumbly throughout; termite galleries are tunnel-like and often contain soil. A professional can confirm.
What should I do if I see swarmers?
Save a few for identification, avoid disturbing the area, and arrange an inspection.