Attic Insulation in Cajah's Mountain, NC
Blown-in attic insulation for Cajah's Mountain, NC, 3 miles from Hudson, plus removal and air sealing.
About Cajah's Mountain and Its Homes
The name Cajah's Mountain is said to come from a man called Micajah. Chartered in 1983, subject to a vote of its residents, this southern Caldwell County town sits between Lenoir to the north, Hudson to the east and Gamewell to the west.
Cajah's Mountain, in Caldwell County, fell from 2,703 people in 2020 to 2,702 in 2025 (Census Bureau estimates), on 3.39 square miles.
Cajah's Mountain has about 920 housing units, 2 percent of Caldwell County's; about 75 percent of the town's households own their home.
Cajah's Mountain at a Glance
- County: Caldwell County
- Population: 2,702 (2025), 2,703 (2020), down 0.0%
- Land area: 3.39 square miles (797 people each)
- Housing units: about 920 (±158)
- Median year built: 1976 (±4); Caldwell County: 1980
- Owner-occupied: 75% (±7); Caldwell County: 74%
- Detached houses: 85% (±7); Caldwell County: 73%
- Apartments: 12% (±7)
- Mobile homes: under 4%
- Climate zone: 4 on both maps
- ENERGY STAR target for Cajah's Mountain attics: R-60 from bare, R-49 over 3 to 4 inches (R-value guide)
Census Bureau estimates for Cajah's Mountain, 2020 to 2024 (± margin of error).
Attic Insulation in Cajah's Mountain
About 35 percent of Cajah's Mountain's homes predate 1970; if your joists show above the insulation, ENERGY STAR says to add more insulation.
Built from 1970 to 1989, about 40 percent of Cajah's Mountain homes may hold settled fiberglass; check its depth against the joists.
The Local Climate
Cajah's Mountain's center sits about 1,320 feet above sea level, 6 miles from NOAA's Lenoir station, the best match for Cajah's Mountain. The station's 1991 to 2020 normals average about 3,850 heating and 1,290 cooling degree days a year, so at Cajah's Mountain's station, heating needs outweigh cooling.
Cajah's Mountain sits about 150 feet above the station, so expect slightly colder winters.
Homes by Age: What It Means for the Attic
About 85 percent of Cajah's Mountain housing units are detached single-family houses.
Built from 1940 to 1969, about 35 percent of Cajah's Mountain homes often have little insulation.
About 60 percent of Cajah's Mountain's housing units predate 1980; nearly all predate the state's 1978 insulation rule too.
Homes by Year Built
- Before 1940: under 1%
- 1940s: 3% (±2), about 25 units
- 1950s: 12% (±7), about 110 units
- 1960s: 21% (±8), about 195 units
- 1970s: 23% (±6), about 215 units
- 1980s: 18% (±7), about 170 units
- 1990s: 9% (±6), about 85 units
- 2000s: 12% (±5), about 115 units
- 2010s: under 2%
- 2020 or later: under 2%
Air Sealing and Duct Sealing in Cajah's Mountain
In Cajah's Mountain, about 69 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: 69% (±9), about 590 households; Caldwell County: 70%
- Piped gas: 17% (±7), about 145 households
- Bottled or tank gas: under 5%, about 20 households
- Oil or kerosene: 4% (±2), about 30 households
- Wood: under 5%, about 15 households
Power, Gas and Rebates
Duke Energy Carolinas supplies Cajah's Mountain's electricity. For gas, Cajah's Mountain is in the Caldwell County franchise of Piedmont Natural Gas, and about 17 percent of the town's homes heat with piped gas. Duke's free House Call fits many Cajah's Mountain homes: about 69 percent heat with electricity.
Rebate to check in Cajah's Mountain: Smart $aver Insulate and Seal (Duke Energy; Insulation Pros is an approved trade ally). Before a job in Cajah's Mountain, check its current terms; the Caldwell County page lists every program.
Attic Insulation Removal in Cajah's Mountain
In a Cajah's Mountain attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Cajah's Mountain attic is sanitized and deodorized; dry, clean insulation stays.
Also Serving Near Cajah's Mountain
Nearest to Cajah's Mountain first.
Gamewell, NC
4 miles west
Center about 250 feet lower than Cajah's Mountain's
Attic insulation in GamewellLenoir, NC
4 miles north
Median home built 1972 (Cajah's Mountain: 1976); 18,372 people, about 7 times Cajah's Mountain's population
Attic insulation in LenoirSawmills, NC
4 miles southeast
Median home built 1990 (Cajah's Mountain: 1976)
Attic insulation in SawmillsRutherford College, NC
7 miles south
Its NOAA station logs about 300 fewer heating degree days than Cajah's Mountain's; 1,220 people, about half of Cajah's Mountain's population
Attic insulation in Rutherford College
Cajah's Mountain Insulation FAQs
Helene damaged roofs across Caldwell County. Should I look at my attic insulation now?
Yes, if your roof took a hit or a ceiling stained. The National Weather Service at Greenville-Spartanburg reported on Helene in 2024 county by county. For Caldwell it wrote that wind damage came on top of the flooding, with several homes' roofs hurt by high gusts and trees and power lines down widely. To ENERGY STAR, wet insulation in an attic points straight to a leaking roof. The roof gets repaired before anything else, and soaked insulation is then vacuumed out and new insulation blown in.
Is Cajah's Mountain old enough to have historic houses that come with rules?
Not on the state's books. The town's charter only dates from 1983, and none of its properties is on the National Register list that the State Historic Preservation Office keeps. When that office last printed the roster of local preservation commissions, in 2023, Caldwell County had none. That leaves attic insulation and air sealing here free of any historic review.
Does attic insulation in Cajah's Mountain need a permit?
Cajah's Mountain Town Hall can say whether Caldwell County Building Permits & Inspections, the town itself or another office handles permits in Cajah's Mountain; 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 Cajah's Mountain, NOAA normals for the Lenoir station, Duke Energy Carolinas (October 2026). Compiled by Insulation Pros. How the town pages are made.
Sources for the Cajah's Mountain introduction and questions (read October 20, 2026):
- Cajahs Mountain, in The North Carolina Gazetteer (William S. Powell, 2nd ed., UNC Press 2010), NCpedia
- Session Law 1983-52 (Senate Bill 73), An Act to Incorporate the Town of Cajah Mountain, North Carolina General Assembly
- Overview, Town of Cajah's Mountain
- Post-Tropical Cyclone Helene impact narratives by county, National Weather Service Greenville-Spartanburg
- Attic Insulation Project, ENERGY STAR
- 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)
Cajah's Mountain, NC
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Insulation Pros is an insulation contractor serving North Carolina, Cajah's Mountain and the rest of Caldwell County included.
Reach us
Send the square footage of your Cajah's Mountain attic, or call (336) 870-3893.