Jonesville, NC
7 miles west
Median home built 1970 (Boonville: 1978); 2,356 people to Boonville's 1,203
Attic insulation in JonesvilleAttic Insulation in Boonville, NC
Blown-in attic insulation for Boonville, NC, 7 miles from Jonesville, plus removal and air sealing.
About Boonville and Its Homes
Boonville grew up at a crossroads about three miles south of the Yadkin River and got a post office under that name in 1857. It was incorporated in 1895, yet almost nothing in print describes its homes, so what each attic shows is the guide.
Boonville, in Yadkin County, grew from 1,176 people in 2020 to 1,203 in 2025 (Census Bureau estimates), on 1.2 square miles. That makes Boonville the third-largest town in Yadkin County.
Boonville has about 700 housing units, 4 percent of Yadkin County's; about 66 percent of the town's households own their home.
Boonville at a Glance
- County: Yadkin County
- Population: 1,203 (2025), 1,176 (2020), up 2.3%
- Land area: 1.2 square miles (1,003 people each)
- Housing units: about 700 (±148)
- Median year built: 1978 (±5); Yadkin County: 1983
- Owner-occupied: 66% (±10); Yadkin County: 77%
- Detached houses: 86% (±8); Yadkin County: 71%
- Apartments: 11% (±8)
- Mobile homes: 3% (±3)
- Climate zone: 4 on both maps
- ENERGY STAR target for Boonville attics: R-60 from bare, R-49 over 3 to 4 inches (R-value guide)
Census Bureau estimates for Boonville, 2020 to 2024 (± margin of error).
Attic Insulation in Boonville
About 35 percent of Boonville's homes predate 1970; if your joists show above the insulation, ENERGY STAR says to add more insulation.
The Local Climate
Boonville's center sits about 1,070 feet above sea level, 19 miles from NOAA's Mount Airy 2 W station, the best match for Boonville. The station's 1991 to 2020 normals average about 4,410 heating and 970 cooling degree days a year, so at Boonville's station, heating needs outweigh cooling.
Homes by Age: What It Means for the Attic
About 86 percent of Boonville housing units are detached single-family houses. With about 700 housing units in Boonville, read the figures as rough proportions.
Built from 1940 to 1969, about 25 percent of Boonville homes often have little insulation. From 1990 to 2009, about 25 percent of Boonville homes were built to codes below ENERGY STAR's target; check their eaves, where ENERGY STAR says insulation is often thinnest.
About 55 percent of Boonville's housing units predate 1980; nearly all predate the state's 1978 insulation rule too.
Homes by Year Built
- Before 1940: 7% (±5), about 45 units
- 1940s: 3% (±2), about 20 units
- 1950s: 9% (±5), about 65 units
- 1960s: 14% (±6), about 100 units
- 1970s: 23% (±9), about 160 units
- 1980s: 19% (±14), about 135 units
- 1990s: 13% (±7), about 90 units
- 2000s: 12% (±7), about 85 units
- 2010s: under 2%
- 2020 or later: under 1%
Air Sealing and Duct Sealing in Boonville
In Boonville, about 84 percent of homes heat with electricity; where that heat is forced air, ducts often run through the attic.
Air sealing comes first, as the EPA advises: wire and pipe holes, wall tops and soffits.
How Homes Here Are Heated
- Electricity: 84% (±9), about 510 households; Yadkin County: 79%
- Bottled or tank gas: 6% (±6), about 40 households
- Oil or kerosene: 8% (±5), about 45 households
Power, Gas and Rebates
Duke Energy Carolinas serves most of Boonville, Surry-Yadkin EMC its edges; your bill says which. For gas, Boonville is in the Yadkin County franchise of Frontier Natural Gas, whose mains may not reach every street in Boonville. Duke's free House Call fits many Boonville homes: about 84 percent heat with electricity.
Rebate to check in Boonville: Smart $aver Insulate and Seal (Duke Energy; Insulation Pros is an approved trade ally). Before a job in Boonville, check its current terms; the Yadkin County page lists every program.
Attic Insulation Removal in Boonville
In a Boonville attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Boonville attic is sanitized and deodorized; dry, clean insulation stays.
Also Serving Near Boonville
Nearest to Boonville first.
Yadkinville, NC
8 miles south
Median home built 1982 (Boonville: 1978); Its NOAA station logs about 210 fewer heating degree days than Boonville's
Attic insulation in YadkinvilleElkin, NC
8 miles west
Median home built 1964 (Boonville: 1978); Center about 170 feet lower than Boonville's
Attic insulation in ElkinDobson, NC
11 miles north
Center about 190 feet higher than Boonville's; 1,474 people to Boonville's 1,203
Attic insulation in Dobson
Boonville Insulation FAQs
The insulation in our Boonville attic has gray streaks in places. Why?
Those streaks are a map of air leaks. As house air drifts up through loose fill or batts, the fibers strain out its dust and darken, ENERGY STAR explains. The openings hide underneath, for instance at the tops of walls, wiring holes or a pipe chase. We pull back the insulation at each stained patch, close the opening below, and lay the same material back down. Dry insulation with stains can stay, since the agency calls dirty insulation still okay to use.
Is any Boonville house on the National Register?
No. Neither the town nor its outskirts has a single entry on the preservation office's National Register list. The office's 2023 commission roster leaves out Yadkin County altogether, and the town boards deal with planning and zoning appeals only. Insulating and sealing an attic here is plain inside work that no historic review touches.
Could the old insulation in a Boonville attic be vermiculite?
It could: about 20 percent of Boonville's homes predate 1960. If a Boonville attic holds a pebble-like gray-brown or silver-gold fill, leave it undisturbed: the EPA says vermiculite may contain asbestos.
Does attic insulation in Boonville need a permit?
Boonville Town Hall can say whether Yadkin County Central Permitting, the town itself or another office handles permits in Boonville; ask before work starts.
Helpful Guides
- Climate zone 4: attic stairs and hatches
- Power from Duke Energy Carolinas: high summer electric bills and home energy audits
Sources
Census Bureau figures for Boonville, NOAA normals for the Mount Airy 2 W station, Duke Energy Carolinas (October 2026). Compiled by Insulation Pros. How the town pages are made.
Sources for the Boonville introduction and questions (read October 20, 2026):
- History of Boonville, Town of Boonville
- Boonville, in The North Carolina Gazetteer (William S. Powell, 2nd ed., UNC Press 2010), NCpedia
- NC Listings in the National Register of Historic Places, NC State Historic Preservation Office
- Attic Air Sealing Project, ENERGY STAR
- Sealing Air Leaks in the Attic, ENERGY STAR do-it-yourself guide
- Historic Preservation Commission Staff in North Carolina, listed by county, as of 2/20/2023 (NC HPO)
- Town of Boonville, North Carolina, official website (Town Government menu)
Boonville, NC
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Insulation Pros is an insulation contractor serving North Carolina, Boonville and the rest of Yadkin County included.
Reach us
Send the square footage of your Boonville attic, or call (336) 870-3893.