Plymouth, NC
9 miles east
3,170 people, about 8 times Jamesville's population
Attic insulation in PlymouthAttic Insulation in Jamesville, NC
Blown-in attic insulation for Jamesville, NC, 9 miles from Plymouth, plus removal and air sealing.
About Jamesville and Its Homes
Jamesville, on the Roanoke River in eastern Martin County, was laid out in 1785 as James Town, incorporated in 1832 as Jameston and renamed in 1855. A lumber railroad toward Washington steadied the small town after the Civil War, though no boom followed.
Jamesville, in Martin County, fell from 420 people in 2020 to 411 in 2025 (Census Bureau estimates), on 1.46 square miles. That makes Jamesville the third-largest town in Martin County.
Jamesville has about 275 housing units, 2 percent of Martin County's.
Jamesville at a Glance
- County: Martin County
- Population: 411 (2025), 420 (2020), down 2.1%
- Land area: 1.46 square miles (282 people each)
- Housing units: about 275 (±104)
- Apartments: 15% (±9)
- Mobile homes: 13% (±8)
- Climate zone: 3 on both maps
- ENERGY STAR target for Jamesville attics: R-49 from bare, R-38 over 3 to 4 inches (R-value guide)
Census Bureau estimates for Jamesville, 2020 to 2024 (± margin of error).
Attic Insulation in Jamesville
If the joists show above the insulation in a Jamesville attic, ENERGY STAR says to add more insulation.
The Local Climate
Jamesville's center sits about 40 feet above sea level, 8 miles from NOAA's Williamston 1 E station, the best match for Jamesville. The station's 1991 to 2020 normals average about 3,030 heating and 1,770 cooling degree days a year, so at Jamesville's station, heating needs outweigh cooling.
Homes by Age: What It Means for the Attic
With about 275 housing units in Jamesville, read the figures as rough proportions.
Built before 1940, about 15 percent of Jamesville homes can hide knob-and-tube wiring and vermiculite, jobs for an electrician and an asbestos contractor first. Built from 1970 to 1989, about 20 percent of Jamesville homes may hold settled fiberglass; check its depth against the joists.
Homes by Year Built
- Before 1940: 16% (±10), about 45 units
- 1950s: 10% (±7), about 25 units
- 1960s: 12% (±7), about 35 units
- 1970s: 8% (±6), about 25 units
- 1980s: 12% (±8), about 30 units
- 1990s: 9% (±6), about 25 units
- 2000s: 4% (±3), about 10 units
- 2010s: under 4%
- 2020 or later: under 5%
Air Sealing and Duct Sealing in Jamesville
In Williamston, the nearest town to Jamesville with solid figures, about 73 percent of homes heat with electricity.
Air sealing comes first, as the EPA advises: wire and pipe holes, wall tops and soffits.
Power, Gas and Rebates
Dominion Energy North Carolina supplies Jamesville's electricity. For gas, Jamesville is in the Martin County franchise of Piedmont Natural Gas, whose mains may not reach every street in Jamesville.
Rebate to check in Jamesville: Home Energy Evaluation (Dominion Energy's contractor network). Before a job in Jamesville, check its current terms; the Martin County page lists every program.
Attic Insulation Removal in Jamesville
In a Jamesville attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Jamesville attic is sanitized and deodorized; dry, clean insulation stays.
Also Serving Near Jamesville
Nearest to Jamesville first.
Williamston, NC
10 miles west
5,086 people, about 12 times Jamesville's population
Attic insulation in WilliamstonWindsor, NC
13 miles north
Power from its own town system (Jamesville: Dominion Energy North Carolina); 3,469 people, about 8 times Jamesville's population
Attic insulation in WindsorBear Grass, NC
13 miles west
81 people, about a fifth of Jamesville's population
Attic insulation in Bear GrassEveretts, NC
15 miles west
144 people, about a third of Jamesville's population
Attic insulation in Everetts
Jamesville Insulation FAQs
Are any houses in Jamesville on the National Register?
One. The Burras House, a small Federal-style farmhouse older than its first known resident's arrival in the 1850s, was listed in 1978. The old Primitive Baptist church, built between 1865 and 1870 and later the women's club, followed in 1984. There is no district in town, and the state's 2023 roll of preservation commissions has nothing for Martin County. A Register listing does not tie a private owner's hands, so attic work here is up to you.
My old Jamesville house has rooms up under the roof. What does that mean for insulation?
It means the attic comes in pieces. The Burras House is a one-story house with a finished attic, and its nomination counts it among a shrinking group of small eastern farmhouses. Where rooms are finished under a roof, the outside edge of the house runs along their short walls, their sloped ceilings and the low floor spaces behind those walls. A state of Iowa training text on house construction warns that the wedge behind such a wall is often leaky, so we seal it before insulating.
Does attic insulation in Jamesville need a permit?
Jamesville Town Hall can say whether Martin County Building Inspections, the town itself or another office handles permits in Jamesville; ask before work starts.
Sources
Census Bureau figures for Jamesville, NOAA normals for the Williamston 1 E station, Dominion Energy North Carolina (October 2026). Compiled by Insulation Pros. How the town pages are made.
Sources for the Jamesville introduction and questions (read October 20, 2026):
- Jamesville, in The North Carolina Gazetteer (William S. Powell, 2nd ed., UNC Press 2010), NCpedia
- (Former) Jamesville Primitive Baptist Church and Cemetery, National Register nomination (NC HPO)
- Burras House, National Register nomination (NC HPO)
- NC Listings in the National Register of Historic Places, NC State Historic Preservation Office
- Historic Preservation Commission Staff in North Carolina, listed by county, as of 2/20/2023 (NC HPO)
- What Is the National Register of Historic Places?, NC State Historic Preservation Office
- Building Construction Problem Areas, weatherization training text, Iowa Department of Health and Human Services
- Attic Air Sealing Project, ENERGY STAR
Jamesville, NC
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Insulation Pros is an insulation contractor serving North Carolina, Jamesville and the rest of Martin County included.
Reach us
Send the square footage of your Jamesville attic, or call (336) 870-3893.