Attic Insulation in Randolph County, NC

Randolph County and Its Homes

Randolph County grew 4 percent from 2020 to 2025, to 149,516 people by the Census Bureau's estimate, in about 62,900 housing units.

Its nine incorporated towns each have a page here: Asheboro, Archdale, Trinity, Randleman, Liberty, Ramseur, Franklinville, Staley and Seagrove. About 40 percent of Randolph County's housing units are inside town limits, the rest in unincorporated areas.

Pale stone municipal building with flags on North Church Street in Asheboro — The Asheboro municipal building in Asheboro, North Carolina Photo: Nyttend, public domain, via Wikimedia Commons

Randolph County at a Glance

Population: 149,516 (2025), 144,401 (2020)
Housing units: about 62,900
Median year built: 1985 (North Carolina: 1991)
Built before 1980: 41% (statewide: 34%)
Detached houses: 68%
Mobile homes: 18%
Owner-occupied: 73%
Heated with electricity: 71% (statewide: 65%)
Climate zone: 3 on both maps
Towns with pages here: 9

Census Bureau estimates for Randolph County (housing: 2020 to 2024).

Towns in Randolph County

Asheboro
27,990 people · median home 1981 · Duke Energy
Archdale
12,254 people · median home 1986 · Duke Energy
Trinity
7,274 people · median home 1979 · Duke Energy
Randleman
4,767 people · Duke Energy
Liberty
2,739 people · median home 1982 · Duke Energy
Ramseur
1,806 people · median home 1973 · Duke Energy
Franklinville
1,256 people · Duke Energy
Staley
405 people · Duke Energy
Seagrove
248 people · Duke Energy
Thomasville
Davidson County town · about 530 residents in Randolph County

What We Do in Randolph County

Attic Insulation in Randolph County
Some 41 percent of Randolph County housing units predate 1980; joists showing above their insulation mean more blown-in fiberglass is due, R-49 from bare.
Attic Insulation Removal in Randolph County
Wet, moldy or animal-soiled insulation comes out of Randolph County attics, and a mouse-soiled Randolph County attic is sanitized and deodorized; in the 18 percent of homes built before 1960, vermiculite is ruled out first.
Air Sealing in Randolph County
Some 71 percent of Randolph County homes heat with electricity, often through attic ducts; their joints and the ceiling's gaps are sealed first.

Homes in Randolph County

Half of Randolph County's 62,900 housing units were built before 1985: 27 percent before 1970, 41 percent before 1980 (nearly all before the state's 1978 insulation rule) and 9 percent in 2010 or later. The largest share went up in the 1990s, under codes that asked for less than ENERGY STAR now suggests; ENERGY STAR notes insulation is often thinnest at the eaves. Among Randolph County towns, the median home is oldest in Ramseur (1973) and newest in Archdale (1986).

Randolph County by type: 68 percent detached houses, 11 percent in buildings of two or more homes and 18 percent mobile homes. In Randolph County, 71 percent of homes heat with electricity, 14 percent with piped gas, 7 percent with tank gas and 4 percent with oil or kerosene.

Randolph County Homes by Year Built

Before 1940: about 3,380 units, 5% (±1)
1940s: about 1,990 units, 3% (±1)
1950s: about 5,920 units, 9% (±1)
1960s: about 5,640 units, 9% (±1)
1970s: about 9,070 units, 14% (±1)
1980s: about 10,590 units, 17% (±1)
1990s: about 11,150 units, 18% (±1)
2000s: about 9,760 units, 16% (±1)
2010s: about 4,530 units, 7% (±1)
2020 or later: about 880 units, 1% (±1)

Climate Across Randolph County

NOAA 1991 to 2020 normals for Randolph County towns, by station: Siler City 2 N station (Liberty, Ramseur, Franklinville and Staley): about 3,500 heating and 1,500 cooling degree days; Asheboro 2 W station (Asheboro and Seagrove): about 3,540 heating and 1,390 cooling degree days; High Point station (Archdale and Trinity): about 3,120 heating and 1,710 cooling degree days; Randleman station (Randleman): about 3,710 heating and 1,430 cooling degree days.

Power and Gas in Randolph County

The card lists Randolph County's town and countryside utilities by the territory maps; a power bill confirms the one at an address. The territory map does not split Duke Energy's two North Carolina companies in Randolph County; their programs are the same, and the power bill names the one at an address.

Piedmont Natural Gas holds the Randolph County gas franchise (NC Utilities Commission map), and 14 percent of Randolph County homes heat with piped gas.

Who Supplies Power in Randolph County

Duke Energy: Asheboro, Archdale, Trinity, Randleman, Liberty, Ramseur, Franklinville, Staley and Seagrove
Randolph EMC: homes near Asheboro, Liberty, Ramseur, Franklinville, Staley and Seagrove
EnergyUnited: other parts of Randolph County

Energy Programs for Randolph County Homes

Check each program's current terms for a Randolph County home; some pay only through the utility's contractor network. Insulation Pros is an approved Duke Energy trade ally for Duke's rebate.

Programs for Randolph County

Smart $aver Insulate and Seal (Duke Energy rebate; Asheboro, Archdale, Trinity, Randleman and more).
Home Energy House Call (Duke Energy home assessment; Asheboro, Archdale, Trinity, Randleman and more).
Home energy analysis (Randolph EMC; near Asheboro, near Liberty, near Ramseur, near Franklinville and more): a free home energy analysis for members.
Income-qualified Weatherization (Duke Energy income-qualified; Asheboro, Archdale, Trinity, Randleman and more).
Energy Saver North Carolina (statewide income-qualified; any Randolph County address).
Weatherization Assistance Program (statewide income-qualified; any Randolph County address).
Piedmont Natural Gas lists rebates for high-efficiency gas furnaces, and none for insulation or air sealing (program page).

Get Your Free Estimate

or call (336) 870-3893

Randolph County Insulation FAQs

Do you serve all of Randolph County?

Yes: Asheboro, Archdale, Trinity, Randleman, Liberty, Ramseur, Franklinville, Staley and one more town, the parts of Thomasville inside Randolph County, and every unincorporated Randolph County address.

Which utilities offer insulation rebates in Randolph County?

Duke Energy's Smart $aver Insulate and Seal (Asheboro, Archdale, Trinity, Randleman and more).

Does attic insulation in Randolph County need a permit?

Ask Randolph County Building Inspections before work starts. For an address in Asheboro, Archdale, Trinity or another Randolph County town, the town or city hall can tell you whether Randolph County's office handles its permits.