Attic Insulation in Hope Mills, NC

Blown-in attic insulation for Hope Mills, NC, in Cumberland County, plus removal and air sealing.

About Hope Mills and Its Homes

Hope Mills grew around cotton mills on Little Rockfish Creek, the first finished in 1839, and became a town in 1891. Its historic district, listed in 1985, takes in story-and-a-half houses from the 1830s and a village of mill duplexes beside Mill Number Four, which opened in 1904.

Hope Mills, in Cumberland County, grew from 17,838 people in 2020 to 18,324 in 2025 (Census Bureau estimates), on 8.84 square miles. That makes Hope Mills the second-largest town in Cumberland County.

Hope Mills has about 6,900 housing units, 5 percent of Cumberland County's; 66 percent of the town's households own their home.

Hope Mills Town Hall, a low brick building with a white columned entrance behind a wide lawn
Hope Mills Town Hall in Hope Mills, North Carolina Photo: Dincher, public domain, via Wikimedia Commons

Hope Mills at a Glance

  • County: Cumberland County
  • Population: 18,324 (2025), 17,838 (2020), up 2.7%
  • Land area: 8.84 square miles (2,073 people each)
  • Housing units: about 6,900 (±345)
  • Median year built: 1995 (±2); Cumberland County: 1988
  • Owner-occupied: 66% (±3); Cumberland County: 55%
  • Detached houses: 76% (±2); Cumberland County: 65%
  • Attached houses: 3% (±1)
  • Apartments: 20% (±3)
  • Mobile homes: 2% (±1)
  • Climate zone: 3 on both maps
  • ENERGY STAR target for Hope Mills attics: R-49 from bare, R-38 over 3 to 4 inches (R-value guide)

Census Bureau estimates for Hope Mills, 2020 to 2024 (± margin of error).

Hope Mills Homes and Their Attics

T-Shaped Duplexes Beside Mill Number Four

On Railroad, Middle and Ellison Streets the mill company built a row of one-story duplexes around 1919. The 1985 nomination describes each as T-shaped, with four rooms per side and the kitchen in the back wing, under a triple-A roof with trim in the front gable. Indoor plumbing came only in the early 1950s, shortly before the company sold the whole cluster to individual owners in 1954. A T-shaped roof makes an attic with two legs, one over the front rooms and one over the wing. Both need an even layer with no thin patches. ENERGY STAR also puts plumbing and wiring holes on its list of leaks to close first, so the spots where later pipes and vent stacks pass through the ceiling get sealed.

Attic Insulation in Hope Mills

Some 13 percent of Hope Mills' homes predate 1970; if your joists show above the insulation, ENERGY STAR says to add more insulation.

From 1990 to 2009, 47 percent of Hope Mills homes were built to codes below ENERGY STAR's target; check their eaves, where ENERGY STAR says insulation is often thinnest.

The Local Climate

Hope Mills' center sits about 110 feet above sea level, 8 miles from NOAA's Fayetteville PWC station, the best match for Hope Mills. The station's 1991 to 2020 normals average about 2,970 heating and 1,890 cooling degree days a year, so at Hope Mills' station, heating needs outweigh cooling.

Homes by Age: What It Means for the Attic

Some 76 percent of Hope Mills housing units are detached single-family houses.

Built from 1970 to 1989, 26 percent of Hope Mills homes may hold settled fiberglass; check its depth against the joists.

About 27 percent of Hope Mills' housing units predate 1980; nearly all predate the state's 1978 insulation rule too.

Homes by Year Built

  • Before 1940: 2% (±1), about 135 units
  • 1940s: 1% (±1), about 95 units
  • 1950s: 3% (±1), about 190 units
  • 1960s: 6% (±2), about 440 units
  • 1970s: 15% (±2), about 1,000 units
  • 1980s: 11% (±2), about 750 units
  • 1990s: 25% (±3), about 1,690 units
  • 2000s: 22% (±3), about 1,540 units
  • 2010s: 12% (±2), about 840 units
  • 2020 or later: 2% (±1), about 170 units

Air Sealing and Duct Sealing in Hope Mills

In Hope Mills, 90 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: 90% (±2), about 5,900 households; Cumberland County: 77%
  • Piped gas: 4% (±1), about 250 households
  • Bottled or tank gas: 5% (±2), about 350 households

Power, Gas and Rebates

Power in and around Hope Mills comes from Duke Energy Progress, Fayetteville Public Works Commission (PWC) and Lumbee River EMC; your bill says which. For gas, Hope Mills is in the Cumberland County franchise of Piedmont Natural Gas, and 4 percent of the town's homes heat with piped gas. Duke's free House Call fits many Hope Mills homes: 90 percent heat with electricity.

Rebate to check if Duke Energy Progress serves your Hope Mills home: Smart $aver Insulate and Seal (Duke Energy; Insulation Pros is an approved trade ally). Before a job in Hope Mills, check its current terms; the Cumberland County page lists every program.

Attic Insulation Removal in Hope Mills

In a Hope Mills attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Hope Mills attic is sanitized and deodorized; dry, clean insulation stays.

Also Serving Near Hope Mills

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Hope Mills Insulation FAQs

Did the mill company insulate the old Hope Mills mill houses?

Nothing obliged it to. The duplexes near Mill Number Four date from about 1919. North Carolina waited until 1978 to make insulation a condition for moving into a newly started house. The nomination says nothing about insulation, and the mill sold the houses in 1954, so we measure what is there. Both legs of the T get measured on their own, because the wing over the kitchen can differ from the front.

My house is inside the Hope Mills Historic District. Does that limit attic work?

The listing itself does not. The district joined the National Register in 1985, and the state preservation office is clear that listing alone does not bind an owner spending private funds. Hope Mills does have a Historic Preservation Commission, though. If your house has been designated a local landmark or sits in a local district, its exterior changes go through that commission. The insulation stays out of sight indoors. Any new vents on the roof are a question for the town first.

The bonus room above our Hope Mills garage is never comfortable. Why?

Because it has outdoors, or an unheated garage, on almost every side. The housing figures show that most of the town was built in 1970 or later, well after the mill era, and a room over a garage is a newer-house problem. The Building America guide on garage ceilings calls for sealing that floor against air from below, then insulating it with the batts or fill pressed up tight to the subfloor. The short walls and little side attics around the room get the same care. We also insulate garages themselves.

Does attic insulation in Hope Mills need a permit?

Hope Mills Town Hall can say whether Cumberland County Building Inspections & Permitting, the town itself or another office handles permits in Hope Mills; ask before work starts.

Serving Hope Mills, NC

Insulation Pros is an insulation contractor serving North Carolina, Hope Mills and the rest of Cumberland County included.

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Send the square footage of your Hope Mills attic, or call (336) 870-3893.

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Areas We Serve

We serve homes across North Carolina. These are the largest towns we work in.

Alamance County

Buncombe County

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Cumberland County

Durham County

Forsyth County

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(336) 870-3893 Text us Mon–Fri 8am – 5pmSat By appointmentSun Closed 257-4 Grove Ct, Thomasville, NC 27360
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