Holden Beach, NC
6 miles southeast
Median home built 1992 (Shallotte: 2004); 916 people, about a sixth of Shallotte's population
Attic insulation in Holden BeachAttic Insulation in Shallotte, NC
Blown-in attic insulation for Shallotte, NC, in Brunswick County, plus removal and air sealing.
About Shallotte and Its Homes
Shallotte grew at the head of sloop navigation on its river, where a bridge crossed as early as 1807, kept a post office from 1837 and was incorporated in 1899. The 2010 county survey found only a few houses left in town from those early years.
Shallotte, in Brunswick County, grew from 4,167 people in 2020 to 5,335 in 2025 (Census Bureau estimates), on 9.24 square miles.
Shallotte has about 2,400 housing units, 2 percent of Brunswick County's; about 64 percent of the town's households own their home.
Shallotte at a Glance
- County: Brunswick County
- Population: 5,335 (2025), 4,167 (2020), up 28.0%
- Land area: 9.24 square miles (577 people each)
- Housing units: about 2,400 (±299)
- Median year built: 2004 (±2); Brunswick County: 2002
- Owner-occupied: 64% (±12); Brunswick County: 85%
- Detached houses: 64% (±10); Brunswick County: 69%
- Attached houses: under 10%
- Apartments: 25% (±10)
- Mobile homes: 7% (±6)
- Climate zone: 3 on both maps
- ENERGY STAR target for Shallotte attics: R-49 from bare, R-38 over 3 to 4 inches (R-value guide)
Census Bureau estimates for Shallotte, 2020 to 2024 (± margin of error).
Shallotte Homes and Their Attics
Early Houses Near the River Bridge
In 1890 a Southport paper put about a hundred people within a mile of the Shallotte bridge, along with stores, saw and grist mills, turpentine stills and a cotton gin. Of the town's houses from its early years, the survey found one plausibly dated 1892 and another from before the Civil War. It blames hurricanes and the humid climate for the loss of early wood buildings across the county. If an old house here has a brick chimney rising through the ceiling, we seal the opening beside it with sheet aluminum and high-temperature caulk. Then a metal dam goes around the masonry so no insulation touches it.
Late Bungalows and Mid-Century Cape Cods
Craftsman bungalows came late to Brunswick County, the 2010 survey found, and a well-kept example in downtown Shallotte went up in 1940 for one of the town's main merchants. At mid-century the Cape Cod form of Colonial Revival grew popular in the county's rural areas. In a Cape Cod with rooms upstairs, those rooms are tucked under the roof slope, walled off from narrow side attics by short knee walls. A building-problems manual from Iowa's health department flags the triangle of space behind such a wall as a common leak. We seal and insulate those side attics as well as the space overhead.
Attic Insulation in Shallotte
If the joists show above the insulation in a Shallotte attic, ENERGY STAR says to add more insulation.
From 1990 to 2009, about 50 percent of Shallotte homes were built to codes below ENERGY STAR's target; check their eaves, where ENERGY STAR says insulation is often thinnest.
The Local Climate
Shallotte's center sits about 20 feet above sea level, 3 miles from NOAA's Shallotte Ag station, the best match for Shallotte. The station's 1991 to 2020 normals average about 2,430 heating and 1,860 cooling degree days a year, so Shallotte attics work in both seasons.
The state energy code marks Brunswick County warm and humid.
Homes by Age: What It Means for the Attic
About 64 percent of Shallotte housing units are detached single-family houses.
In 2010 or later, about 25 percent of Shallotte homes went up; check their air sealing as well as the depth.
About 25 percent of Shallotte units sit in buildings of two or more homes, where the attic is often shared.
Homes by Year Built
- Before 1940: under 1%
- 1940s: under 1%, about 10 units
- 1950s: under 1%, about 10 units
- 1960s: under 2%, about 15 units
- 1970s: 6% (±6), about 150 units
- 1980s: 13% (±5), about 310 units
- 1990s: 12% (±7), about 275 units
- 2000s: 40% (±10), about 950 units
- 2010s: 24% (±6), about 570 units
- 2020 or later: 3% (±2), about 75 units
Air Sealing and Duct Sealing in Shallotte
In Shallotte, 93 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: 93% (±5), about 1,990 households; Brunswick County: 87%
- Bottled or tank gas: 3% (±3), about 70 households
- Wood: under 5%, about 40 households
Power, Gas and Rebates
Power in and around Shallotte comes from Duke Energy Progress and Brunswick Electric; your bill says which. For gas, Shallotte is in the Brunswick County franchise of Piedmont Natural Gas, whose mains may not reach every street in Shallotte. Duke's free House Call fits many Shallotte homes: 93 percent heat with electricity.
Rebate to check if Duke Energy Progress serves your Shallotte home: Smart $aver Insulate and Seal (Duke Energy; Insulation Pros is an approved trade ally). Before a job in Shallotte, check its current terms; the Brunswick County page lists every program.
Attic Insulation Removal in Shallotte
In a Shallotte attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Shallotte attic is sanitized and deodorized; dry, clean insulation stays.
Also Serving Near Shallotte
Nearest to Shallotte first.
Ocean Isle Beach, NC
8 miles southwest
Median home built 1996 (Shallotte: 2004); 940 people, about a sixth of Shallotte's population
Attic insulation in Ocean Isle BeachVarnamtown, NC
9 miles east
Median home built 1990 (Shallotte: 2004); 525 people, about a tenth of Shallotte's population
Attic insulation in VarnamtownSunset Beach, NC
9 miles southwest
Median home built 2000 (Shallotte: 2004)
Attic insulation in Sunset BeachCalabash, NC
12 miles southwest
Median home built 1995 (Shallotte: 2004); Its NOAA station logs about 240 more heating degree days than Shallotte's
Attic insulation in Calabash
Shallotte Insulation FAQs
Is my old Shallotte house on a historic list of any kind?
Probably not. Nothing in Shallotte is on the National Register. The 2010 county survey did put a few properties in town forward for the state's Study List, which only signals that a place may be eligible and promises no listing. Even a full listing, the Historic Preservation Office explains, would not limit what you do to your own house with your own funds. Brunswick County also had no local preservation commission on the 2023 state roll, so attic work here is your own call.
Who checks the old wiring before insulation goes into an early Shallotte house?
An electrician does, ahead of us. Houses wired before about 1930 can have knob-and-tube, and some early Shallotte houses could have it yet. ENERGY STAR calls it a fire hazard wherever it is in contact with insulation and says to have it corrected first. If any of it is still live, that part of the attic stays clear. Once the wiring is sorted out, we seal and insulate the rest.
Does attic insulation in Shallotte need a permit?
Shallotte Town Hall can say whether Brunswick County Permits & Development, the town itself or another office handles permits in Shallotte; ask before work starts.
Helpful Guides
- Brunswick County is warm and humid by the state energy code: attic condensation and mold and attic ventilation
- Median home built 2004: bonus rooms over garages
Sources
Census Bureau figures for Shallotte, NOAA normals for the Shallotte Ag station (October 2026). Compiled by Insulation Pros. How the town pages are made.
Sources for the Shallotte notes and questions (read October 20, 2026):
- Shallotte, in The North Carolina Gazetteer (William S. Powell, 2nd ed., UNC Press 2010), NCpedia
- Comprehensive Historical/Architectural Site Survey of Brunswick County, North Carolina (Landmark Preservation Associates, September 2010), NC HPO
- Furnace Flues Require Special Sealing Techniques, ENERGY STAR do-it-yourself guide
- Building Construction Problem Areas, weatherization training text, Iowa Department of Health and Human Services
- Attic Air Sealing Project, ENERGY STAR
- NC Listings in the National Register of Historic Places, NC State Historic Preservation Office
- What Is 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)
- Attic Insulation Project, ENERGY STAR
Shallotte, NC
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Insulation Pros is an insulation contractor serving North Carolina, Shallotte and the rest of Brunswick County included.
Reach us
Send the square footage of your Shallotte attic, or call (336) 870-3893.