Laurel Park, NC
3 miles west
Median home built 1982 (Hendersonville: 1987); Center about 210 feet higher than Hendersonville's
Attic insulation in Laurel ParkInsulation Contractor Serving Hendersonville, NC
Blown-in attic insulation for Hendersonville, NC, in Henderson County, plus removal and air sealing.
About Hendersonville and Its Homes
Hendersonville, the Henderson County seat in a broad mountain valley, was laid out in 1840 and boomed as a summer resort once the railroad arrived in 1879. Its oldest neighborhoods took shape during that half century of growth, which stopped short with the crash of 1929.
Hendersonville, in Henderson County, grew from 15,215 people in 2020 to 15,867 in 2025 (Census Bureau estimates), on 7.63 square miles. No town in Henderson County has more people than Hendersonville.
Hendersonville has about 8,900 housing units, 15 percent of Henderson County's; 46 percent of the city's households own their home.
Hendersonville at a Glance
- County: Henderson County
- Population: 15,867 (2025), 15,215 (2020), up 4.3%
- Land area: 7.63 square miles (2,080 people each)
- Housing units: about 8,900 (±453)
- Median year built: 1987 (±4); Henderson County: 1990
- Owner-occupied: 46% (±4); Henderson County: 75%
- Detached houses: 41% (±4); Henderson County: 69%
- Attached houses: 9% (±2)
- Apartments: 46% (±6)
- Mobile homes: 3% (±2)
- Climate zone: 4 on both maps
- ENERGY STAR target for Hendersonville attics: R-60 from bare, R-49 over 3 to 4 inches (R-value guide)
Census Bureau estimates for Hendersonville, 2020 to 2024 (± margin of error).
Hendersonville Homes and Their Attics
Houses From the Railroad Resort Years
After 1879, trainloads of summer visitors kept Hendersonville building. The city's 1988 historic properties study quotes a 1909 newspaper claiming the number of boarding houses had doubled in six years. The 1926 city directory counted four times as many people in town in summer as in winter. The railroad also brought style books and factory-made materials, so in-town houses of the period followed national fashions. Building slowed to a crawl after 1929. A house from those boom decades may have been wired with knob-and-tube, and ENERGY STAR treats such wiring as a fire hazard once insulation surrounds it. That wiring gets a look from an electrician before we add anything around it.
Druid Hills and Its Rooms Under the Roof
Druid Hills, northwest of downtown, was first platted in 1923 on curving, tree-lined streets that its National Register nomination says were in all probability designed by landscape architect Earle Sumner Draper. The nomination singles out its Tudor Revival houses with steep and clipped gable roofs, Craftsman bungalows with eyebrow and front-gable dormers, and houses a story and a half tall. Upstairs rooms in houses like these are built into the roof slope. The short walls along their sides, and the dormer walls, back onto small wedge-shaped attics. A state training manual on house construction from Iowa names those wedges as a common place for air to leak. Those side attics are sealed and insulated on their own, along with the flat space over the ceiling.
Attic Insulation in Hendersonville
Some 29 percent of Hendersonville's homes predate 1970; if your joists show above the insulation, ENERGY STAR says to add more insulation.
From 1990 to 2009, 29 percent of Hendersonville homes were built to codes below ENERGY STAR's target; check their eaves, where ENERGY STAR says insulation is often thinnest.
The Local Climate
Hendersonville's center sits about 2,160 feet above sea level, 1 mile from NOAA's Hendersonville 1 NE station, the best match for Hendersonville. The station's 1991 to 2020 normals average about 4,170 heating and 900 cooling degree days a year, so at Hendersonville's station, heating needs outweigh cooling.
Readings change over short distances around Hendersonville: NOAA's Asheville Regional Airport station, 9 miles away, averages about 3,840 heating degree days.
Homes by Age: What It Means for the Attic
Some 41 percent of Hendersonville housing units are detached single-family houses.
Built from 1970 to 1989, 24 percent of Hendersonville homes may hold settled fiberglass; check its depth against the joists.
About 43 percent of Hendersonville's housing units predate 1980; nearly all predate the state's 1978 insulation rule too. Some 46 percent of Hendersonville units sit in buildings of two or more homes, where the attic is often shared. Renters hold 54 percent of Hendersonville's occupied homes, so many attic decisions rest with landlords.
Homes by Year Built
- Before 1940: 8% (±2), about 740 units
- 1940s: 4% (±1), about 350 units
- 1950s: 9% (±3), about 810 units
- 1960s: 8% (±2), about 670 units
- 1970s: 14% (±3), about 1,220 units
- 1980s: 11% (±2), about 940 units
- 1990s: 13% (±3), about 1,170 units
- 2000s: 16% (±3), about 1,390 units
- 2010s: 15% (±4), about 1,380 units
- 2020 or later: 3% (±1), about 225 units
Air Sealing and Duct Sealing in Hendersonville
In Hendersonville, 63 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: 63% (±4), about 5,200 households; Henderson County: 60%
- Piped gas: 33% (±4), about 2,700 households
- Bottled or tank gas: under 3%, about 115 households
Power, Gas and Rebates
Duke Energy supplies Hendersonville's electricity. For gas, Hendersonville is in the Henderson County franchise of Enbridge Gas North Carolina, and 33 percent of the city's homes heat with piped gas. Duke's free House Call fits many Hendersonville homes: 63 percent heat with electricity.
Rebate to check in Hendersonville: Smart $aver Insulate and Seal (Duke Energy; Insulation Pros is an approved trade ally). Before a job in Hendersonville, check its current terms; the Henderson County page lists every program.
Attic Insulation Removal in Hendersonville
In a Hendersonville attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Hendersonville attic is sanitized and deodorized; dry, clean insulation stays.
Also Serving Near Hendersonville
Nearest to Hendersonville first.
Flat Rock, NC
4 miles south
Median home built 1992 (Hendersonville: 1987); 3,643 people, about a quarter of Hendersonville's population
Attic insulation in Flat RockFletcher, NC
8 miles north
Median home built 2001 (Hendersonville: 1987); Its NOAA station logs about 330 fewer heating degree days than Hendersonville's
Attic insulation in FletcherMills River, NC
8 miles northwest
Median home built 1997 (Hendersonville: 1987); 7,504 people, about half of Hendersonville's population
Attic insulation in Mills RiverSaluda, NC
9 miles southeast
Power from Duke Energy Carolinas (Hendersonville: Duke Energy); 671 people, under a tenth of Hendersonville's population
Attic insulation in Saluda
Hendersonville Insulation FAQs
I live in Druid Hills. Does attic insulation need the city's approval?
Not the insulation itself. The city's map of locally designated historic districts includes Druid Hills, along with Hyman Heights and Main Street. In those districts the city requires a certificate of appropriateness before work on the exterior of a building. State law leaves interior arrangement outside the commission's authority, and blowing insulation into the attic happens inside the house. New roof vents or soffit vents would change the outside, so bring those ideas to the city's preservation staff first.
My Hendersonville house is in a National Register district. Does that add rules?
Not from the city. Hendersonville has several Register districts, among them Lenox Park, West Side and Cold Spring Park, and the city says it does not regulate its National Register districts. For its part, the State Historic Preservation Office says Register status by itself leaves you free to maintain or alter your house at your own expense. Only the locally designated districts carry the city's exterior review. If your street is in both kinds, as Druid Hills is, the local rules apply to outside changes.
Are there rebates for attic insulation in Hendersonville?
Duke Energy's Smart $aver Insulate and Seal is the one to check: a rebate for attic insulation done together with air sealing, and a separate one for duct sealing, when the attic starts at R-19 or less; a contractor in Duke's Smart $aver network must do the work, and Insulation Pros is an approved Duke Energy trade ally. Check its current terms. The Henderson County page lists every other program.
Could the old insulation in a Hendersonville attic be vermiculite?
It could: about 21 percent of Hendersonville's homes predate 1960. If a Hendersonville attic holds a pebble-like gray-brown or silver-gold fill, leave it undisturbed: the EPA says vermiculite may contain asbestos.
How do I choose an insulation company in Hendersonville?
Compare written estimates for your Hendersonville attic listing air sealing, any removal and the added depth; for Duke Energy's rebate the contractor must be in Duke's network, and Insulation Pros is an approved Duke Energy trade ally.
Does attic insulation in Hendersonville need a permit?
Hendersonville City Hall can say whether Henderson County Permits & Inspections, the city itself or another office handles permits in Hendersonville; ask before work starts.
Helpful Guides
- Mountain winters: attic stairs and hatches
- Power from Duke Energy: high summer electric bills and home energy audits
Sources
Census Bureau figures for Hendersonville, NOAA normals for the Hendersonville 1 NE station, Duke Energy (October 2026). Compiled by Insulation Pros. How the town pages are made.
Sources for the Hendersonville notes and questions (read October 20, 2026):
- Hendersonville, in The North Carolina Gazetteer (William S. Powell, 2nd ed., UNC Press 2010), NCpedia
- Historic and Architectural Properties in Hendersonville, NC, National Register multiple property documentation form (Hendersonville Survey, 1988), NC HPO
- Attic Insulation Project, ENERGY STAR
- Druid Hills Historic District, National Register nomination (NC HPO)
- Building Construction Problem Areas, Iowa Department of Health and Human Services weatherization training
- Attic Air Sealing Project, ENERGY STAR
- Hendersonville Historic Preservation, City of Hendersonville
- City of Hendersonville Local Designated Historic Districts (map, Planning Department, August 2009)
- N.C. Gen. Stat. 160D-947, Certificate of appropriateness required
- NC Listings in the National Register of Historic Places, NC State Historic Preservation Office
- What Is the National Register of Historic Places?, NC State Historic Preservation Office
Hendersonville, NC
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Insulation Pros is an insulation contractor serving North Carolina, Hendersonville and the rest of Henderson County included.
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Send the square footage of your Hendersonville attic, or call (336) 870-3893.