Remodeling and Repairs in Strafford County, NH
Every town and city in Strafford County, with Census housing figures and links to each local page.
Strafford County has 13 municipalities, including the cities of Dover, Rochester and Somersworth, and about 56,600 homes. Atlas serves all of them. 19 percent of the county's homes were built before 1940 (state: 19 percent) and 23 percent in 2000 or later (state: 20 percent). The towns with the largest share of pre-1940 homes are Rollinsford (33%), Dover (26%), Somersworth (23%); the most new construction since 2000 is in Durham (33%), Lee (32%), Barrington (31%).
Towns and cities in Strafford County
Figures are from the Census Bureau's American Community Survey (2020 to 2024 estimates). Linked towns have their own page.
| Town or city | Homes | Median year built | Built before 1940 | Owner-occupied |
|---|---|---|---|---|
| Barrington | 3,640 | 1987 | 6% | 87% |
| Dover | 15,430 | 1976 | 26% | 53% |
| Durham | 4,270 | 1981 | 14% | 64% |
| Farmington | 2,950 | 1977 | 21% | 78% |
| Lee | 1,770 | 1987 | 5% | 96% |
| Madbury | 760 | 1984 | 9% | 83% |
| Middleton | 800 | 1981 | 10% | 96% |
| Milton | 1,990 | 1980 | 17% | 86% |
| New Durham | 1,640 | 1983 | 8% | 94% |
| Rochester | 14,700 | 1978 | 17% | 66% |
| Rollinsford | 1,150 | 1966 | 33% | 78% |
| Somersworth | 5,650 | 1967 | 23% | 58% |
| Strafford | 1,870 | 1985 | 14% | 94% |
How Strafford County homes are heated
3 percent of the county's homes are seasonal or occasional-use homes (state: 10 percent). Main heating fuel for the homes that are lived in:
| Main heating fuel | Strafford County | New Hampshire |
|---|---|---|
| Fuel oil or kerosene | 43% | 40% |
| Propane | 16% | 19% |
| Utility gas | 21% | 21% |
| Electricity | 12% | 11% |
| Wood | 4% | 6% |
Climate zone 5
The energy code places all of Strafford County in climate zone 5. In climate zone 5 the energy code calls for R-20 cavity insulation, or R-13 plus R-5 continuous insulation, in new or rebuilt wood-frame walls, R-49 in the ceiling and R-10 insulation at slab edges to 2 feet deep. New Hampshire uses the 2018 International Energy Conservation Code with state amendments (Table R402.1.2 gives these values).
Building codes in Strafford County
The state building code applies in every Strafford County town and city. Local enforcement varies: some have a building or code office and some do not have a local inspector, so we confirm permit requirements with each town before work starts.
Travel
Crew travel and fuel are part of every written Atlas estimate, wherever the house is in Strafford County.