Attic Insulation in Grantsboro, NC
Blown-in attic insulation for Grantsboro, NC, 2 miles from Alliance, plus removal and air sealing.
About Grantsboro and Its Homes
Grantsboro, the crossroads of western Pamlico County on Highway 55, is named for William Grant, who came as a peddler around 1890 and opened a store. It was incorporated only in 1997, but people have made homes here since the early 1900s.
Grantsboro, in Pamlico County, grew from 696 people in 2020 to 728 in 2025 (Census Bureau estimates), on 3.85 square miles. That makes Grantsboro the fourth-largest town in Pamlico County.
Grantsboro has about 310 housing units, 4 percent of Pamlico County's; about 76 percent of the town's households own their home.
Grantsboro at a Glance
- County: Pamlico County
- Population: 728 (2025), 696 (2020), up 4.6%
- Land area: 3.85 square miles (189 people each)
- Housing units: about 310 (±75)
- Owner-occupied: 76% (±9); Pamlico County: 83%
- Mobile homes: 42% (±14)
- Climate zone: 3 on both maps
- ENERGY STAR target for Grantsboro attics: R-49 from bare, R-38 over 3 to 4 inches (R-value guide)
Census Bureau estimates for Grantsboro, 2020 to 2024 (± margin of error).
Attic Insulation in Grantsboro
About 30 percent of Grantsboro's homes predate 1970; if your joists show above the insulation, ENERGY STAR says to add more insulation.
From 1990 to 2009, about 35 percent of Grantsboro homes were built to codes below ENERGY STAR's target; check their eaves, where ENERGY STAR says insulation is often thinnest.
The Local Climate
Grantsboro's center sits about 40 feet above sea level, 2 miles from NOAA's Bayboro 3 SW station, the best match for Grantsboro. The station's 1991 to 2020 normals average about 2,820 heating and 1,700 cooling degree days a year, so at Grantsboro's station, heating needs outweigh cooling.
Readings change over short distances around Grantsboro: NOAA's Reelsboro station, 4 miles away, averages about 2,490 heating degree days.
Homes by Age: What It Means for the Attic
With about 310 housing units in Grantsboro, read the figures as rough proportions.
Built from 1970 to 1989, about 30 percent of Grantsboro homes may hold settled fiberglass; check its depth against the joists.
About 40 percent of Grantsboro's housing units predate 1980; nearly all predate the state's 1978 insulation rule too.
Homes by Year Built
- Before 1940: 2% (±2)
- 1940s: 9% (±7), about 25 units
- 1950s: under 6%
- 1960s: 16% (±8), about 50 units
- 1970s: 11% (±7), about 35 units
- 1980s: 18% (±9), about 55 units
- 1990s: 20% (±10), about 65 units
- 2000s: 15% (±9), about 45 units
- 2010s: 6% (±6), about 20 units
- 2020 or later: under 5%
Air Sealing and Duct Sealing in Grantsboro
In Grantsboro, 85 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: 85% (±3), about 220 households; Pamlico County: 78%
- Piped gas: 5% (±4), about 10 households
- Bottled or tank gas: 8% (±7), about 20 households
- Wood: under 4%
Power, Gas and Rebates
Duke Energy Progress serves most of Grantsboro, Tideland EMC its edges; your bill says which. For gas, Grantsboro is in the Pamlico County franchise of Piedmont Natural Gas, whose mains may not reach every street in Grantsboro. Duke's free House Call fits many Grantsboro homes: 85 percent heat with electricity.
Rebate to check in Grantsboro: Smart $aver Insulate and Seal (Duke Energy; Insulation Pros is an approved trade ally). Before a job in Grantsboro, check its current terms; the Pamlico County page lists every program.
Attic Insulation Removal in Grantsboro
In a Grantsboro attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Grantsboro attic is sanitized and deodorized; dry, clean insulation stays.
Also Serving Near Grantsboro
Nearest to Grantsboro first.
Stonewall, NC
6 miles east
209 people, about a third of Grantsboro's population
Attic insulation in StonewallBridgeton, NC
10 miles west
345 people, about half of Grantsboro's population
Attic insulation in Bridgeton
Grantsboro Insulation FAQs
Grantsboro only became a town in 1997. Does that mean my house is new?
Not necessarily. The incorporation date marks when the town government began, not when its houses went up. The town traces its growth as a place to live back to the early 1900s, and the railroad named its stop Grants. So a house here can be decades older than the town itself. We go by the house: how the roof is framed, how the attic is reached, and what insulation, wiring and vents are already up there.
What do gray patches in the attic insulation of a Grantsboro house tell me?
That house air has been leaking up through the ceiling. ENERGY STAR treats dirty insulation as evidence of air moving through it, and the dust it strains out leaves the stain. Grantsboro has been a place to live since the early 1900s, so its houses span many decades. Wiring runs, plumbing holes and attic hatches are all on ENERGY STAR's list of common leaks. We seal those gaps first. The stained insulation itself is still fine to keep.
Does attic insulation in Grantsboro need a permit?
Grantsboro Town Hall can say whether Pamlico County Inspections Department, the town itself or another office handles permits in Grantsboro; ask before work starts.
Helpful Guides
- Power from Duke Energy Progress: high summer electric bills and home energy audits
Sources
Census Bureau figures for Grantsboro, NOAA normals for the Bayboro 3 SW station, Duke Energy Progress (October 2026). Compiled by Insulation Pros. How the town pages are made.
Sources for the Grantsboro introduction and questions (read October 20, 2026):
Grantsboro, NC
Open in Google Maps (opens in a new tab)Serving Grantsboro, NC
Insulation Pros is an insulation contractor serving North Carolina, Grantsboro and the rest of Pamlico County included.
Reach us
Send the square footage of your Grantsboro attic, or call (336) 870-3893.