Attic Insulation in Cape Carteret, NC
Blown-in attic insulation for Cape Carteret, NC, in Carteret County, plus removal and air sealing.
About Cape Carteret and Its Homes
Cape Carteret, on the north shore of Bogue Sound in western Carteret County, was incorporated in 1959 and absorbed the neighboring Town of Bayshore Park in 1963. It is a young town, and its housing figures show that only a small share of homes here are older than 1970.
Cape Carteret, in Carteret County, grew from 2,228 people in 2020 to 2,273 in 2025 (Census Bureau estimates), on 2.52 square miles. That makes Cape Carteret the fifth-largest town in Carteret County.
Cape Carteret has about 1,310 housing units, 3 percent of Carteret County's.
Cape Carteret at a Glance
- County: Carteret County
- Population: 2,273 (2025), 2,228 (2020), up 2.0%
- Land area: 2.52 square miles (902 people each)
- Housing units: about 1,310 (±192)
- Detached houses: 95% (±6); Carteret County: 61%
- Mobile homes: 5% (±3)
- Climate zone: 3 on both maps
- ENERGY STAR target for Cape Carteret attics: R-49 from bare, R-38 over 3 to 4 inches (R-value guide)
Census Bureau estimates for Cape Carteret, 2020 to 2024 (± margin of error).
Attic Insulation in Cape Carteret
Some 11 percent of Cape Carteret's homes predate 1970; if your joists show above the insulation, ENERGY STAR says to add more insulation.
The Local Climate
Cape Carteret's center sits about 20 feet above sea level, 12 miles from NOAA's Newport/Morehead City Weather Office station, the best match for Cape Carteret. The station's 1991 to 2020 normals average about 2,780 heating and 1,710 cooling degree days a year, so at Cape Carteret's station, heating needs outweigh cooling.
Readings change over short distances around Cape Carteret: NOAA's Hofmann Forest station, 17 miles away, averages about 3,120 heating degree days. The state energy code marks Carteret County warm and humid.
Homes by Age: What It Means for the Attic
Some 95 percent of Cape Carteret housing units are detached single-family houses.
From 1990 to 2009, 32 percent of Cape Carteret homes were built to codes below ENERGY STAR's target; check their eaves, where ENERGY STAR says insulation is often thinnest. In 2010 or later, about 20 percent of Cape Carteret homes went up; check their air sealing as well as the depth.
About 25 percent of Cape Carteret's housing units predate 1980; nearly all predate the state's 1978 insulation rule too.
Homes by Year Built
- Before 1940: under 2%
- 1940s: under 1%
- 1950s: 1% (±1)
- 1960s: 10% (±4), about 125 units
- 1970s: 14% (±5), about 185 units
- 1980s: 22% (±13), about 290 units
- 1990s: 9% (±3), about 115 units
- 2000s: 24% (±5), about 310 units
- 2010s: 19% (±6), about 255 units
- 2020 or later: 1% (±1), about 15 units
Air Sealing and Duct Sealing in Cape Carteret
In Cape Carteret, 94 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: 94% (±6), about 1,080 households; Carteret County: 87%
- Piped gas: 3% (±3), about 35 households
- Bottled or tank gas: under 2%, about 10 households
Power, Gas and Rebates
Power in and around Cape Carteret comes from Duke Energy Progress and Carteret-Craven Electric Cooperative; your bill says which. For gas, Cape Carteret is in the Carteret County franchise of Piedmont Natural Gas, whose mains may not reach every street in Cape Carteret. Duke's free House Call fits many Cape Carteret homes: 94 percent heat with electricity.
Rebate to check if Duke Energy Progress serves your Cape Carteret home: Smart $aver Insulate and Seal (Duke Energy; Insulation Pros is an approved trade ally). Before a job in Cape Carteret, check its current terms; the Carteret County page lists every program.
Attic Insulation Removal in Cape Carteret
In a Cape Carteret attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Cape Carteret attic is sanitized and deodorized; dry, clean insulation stays.
Also Serving Near Cape Carteret
Nearest to Cape Carteret first.
Bogue, NC
2 miles east
706 people, about a third of Cape Carteret's population
Attic insulation in BoguePeletier, NC
2 miles north
803 people, about a third of Cape Carteret's population
Attic insulation in PeletierSwansboro, NC
4 miles west
Its NOAA station logs about 290 fewer heating degree days than Cape Carteret's
Attic insulation in Swansboro
Cape Carteret Insulation FAQs
Is any part of Cape Carteret a historic district?
No. The state's register of historic places lists nothing in the town, and the 2012 architectural survey of Carteret County, which recorded more than 600 historic buildings, describes none here. That fits a town chartered in 1959. Without a designation, attic insulation and air sealing need no preservation review. What counts is how your house was framed, wired and vented.
What is the boxed-in space above my kitchen cabinets, and does it leak?
It is a dropped soffit, and it can leak a lot. The framed box over the cabinets can be open to the attic on top, and ENERGY STAR counts these soffits among the big holes worth plugging first. From the attic, the insulation over the soffit is pulled back and the open top is covered and sealed. Then the insulation goes back over it before any new layer is added.
Is it safe to bury the can lights in my Cape Carteret ceiling under insulation?
Only if they are rated IC, which ENERGY STAR spells out as insulated ceiling. Insulation touching an unrated can light is a fire hazard, so it stays at least 3 inches away and never goes over the top. We look at each fixture from the attic before anything is blown in. Where a can lacks the rating, the gap stays open around it, or an electrician swaps in a rated fixture first.
Does attic insulation in Cape Carteret need a permit?
Cape Carteret Town Hall can say whether Carteret County Planning & Development, the town itself or another office handles permits in Cape Carteret; ask before work starts.
Helpful Guides
- Carteret County is warm and humid by the state energy code: attic condensation and mold and attic ventilation
Sources
Census Bureau figures for Cape Carteret, NOAA normals for the Newport/Morehead City Weather Office station (October 2026). Compiled by Insulation Pros. How the town pages are made.
Sources for the Cape Carteret introduction and questions (read October 20, 2026):
- Cape Carteret, in The North Carolina Gazetteer (William S. Powell, 2nd ed., UNC Press 2010), NCpedia
- Session Law 1963-929 (Senate Bill 611), an act to consolidate the Town of Bayshore Park and the Town of Cape Carteret, North Carolina General Assembly
- Session Law 1979-399 (House Bill 734), an act to restate the boundaries of the Town of Cape Carteret, North Carolina General Assembly
- Year Structure Built (table B25034), Cape Carteret town, American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau via Census Reporter
- NC Listings in the National Register of Historic Places, NC State Historic Preservation Office
- A Comprehensive Architectural Survey of Carteret County, Final Report (M. Ruth Little, Longleaf Historic Resources, 2012), NC HPO
- Sealing Air Leaks in the Attic, ENERGY STAR do-it-yourself guide
- Attic Air Sealing Project, ENERGY STAR
- Attic Insulation Project, ENERGY STAR
Cape Carteret, NC
Open in Google Maps (opens in a new tab)Serving Cape Carteret, NC
Insulation Pros is an insulation contractor serving North Carolina, Cape Carteret and the rest of Carteret County included.
Reach us
Send the square footage of your Cape Carteret attic, or call (336) 870-3893.