Bolivia, NC
5 miles northwest
271 people, under a tenth of Boiling Spring Lakes' population
Attic insulation in BoliviaAttic Insulation in Boiling Spring Lakes, NC
Blown-in attic insulation for Boiling Spring Lakes, NC, in Brunswick County, plus removal and air sealing.
About Boiling Spring Lakes and Its Homes
Boiling Spring Lakes was incorporated on April 7, 1961, and is named for a natural spring and the more than 50 lakes inside the city, the largest covering 275 acres. Going by the Census figures shown on this page, most of its homes went up from 1970 on.
Boiling Spring Lakes, in Brunswick County, grew from 5,899 people in 2020 to 6,875 in 2025 (Census Bureau estimates), on 24.1 square miles. That makes Boiling Spring Lakes the fourth-largest town in Brunswick County.
Boiling Spring Lakes has about 3,300 housing units, 3 percent of Brunswick County's; 82 percent of the city's households own their home.
Boiling Spring Lakes at a Glance
- County: Brunswick County
- Population: 6,875 (2025), 5,899 (2020), up 16.5%
- Land area: 24.1 square miles (285 people each)
- Housing units: about 3,300 (±284)
- Median year built: 1998 (±3); Brunswick County: 2002
- Owner-occupied: 82% (±3); Brunswick County: 85%
- Detached houses: 76% (±8); Brunswick County: 69%
- Attached houses: under 4%
- Apartments: 4% (±4)
- Mobile homes: 18% (±9)
- Climate zone: 3 on both maps
- ENERGY STAR target for Boiling Spring Lakes attics: R-49 from bare, R-38 over 3 to 4 inches (R-value guide)
Census Bureau estimates for Boiling Spring Lakes, 2020 to 2024 (± margin of error).
Boiling Spring Lakes Homes and Their Attics
Building Out a 1960s Lake Development
The county survey lists Boiling Spring Lakes among the inland communities developers laid out in the 1960s. It also found that builders across the county took up the ranch house after the war. A ranch's low-pitched roof comes down close to the attic floor at the outer walls, so the edges are cramped and easy to skimp. ENERGY STAR warns that the outer edges are where a layer can run thinnest. In a ranch, we fit baffles at the eaves first, so outside air still enters through the soffit vents, then blow insulation out to the edge.
Attic Insulation in Boiling Spring Lakes
If the joists show above the insulation in a Boiling Spring Lakes attic, ENERGY STAR says to add more insulation.
From 1990 to 2009, about 55 percent of Boiling Spring Lakes homes were built to codes below ENERGY STAR's target; check their eaves, where ENERGY STAR says insulation is often thinnest.
The Local Climate
Boiling Spring Lakes' center sits about 50 feet above sea level, 4 miles from NOAA's Southport 5 N station, the best match for Boiling Spring Lakes. The station's 1991 to 2020 normals average about 2,200 heating and 2,230 cooling degree days a year, so Boiling Spring Lakes 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 76 percent of Boiling Spring Lakes housing units are detached single-family houses, about 18 percent mobile homes.
Built from 1970 to 1989, about 25 percent of Boiling Spring Lakes homes may hold settled fiberglass; check its depth against the joists.
About 15 percent of Boiling Spring Lakes' housing units predate 1980; nearly all predate the state's 1978 insulation rule too.
Homes by Year Built
- Before 1940: under 1%
- 1940s: under 1%
- 1950s: under 2%, about 35 units
- 1960s: under 2%, about 30 units
- 1970s: 15% (±7), about 490 units
- 1980s: 11% (±5), about 370 units
- 1990s: 26% (±7), about 870 units
- 2000s: 28% (±7), about 920 units
- 2010s: 9% (±4), about 310 units
- 2020 or later: 8% (±3), about 270 units
Air Sealing and Duct Sealing in Boiling Spring Lakes
In Boiling Spring Lakes, about 89 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: 89% (±6), about 2,600 households; Brunswick County: 87%
- Piped gas: under 5%, about 60 households
- Bottled or tank gas: 7% (±4), about 210 households
Power, Gas and Rebates
Duke Energy Progress serves most of Boiling Spring Lakes, Brunswick Electric its edges; your bill says which. For gas, Boiling Spring Lakes is in the Brunswick County franchise of Piedmont Natural Gas, whose mains may not reach every street in Boiling Spring Lakes. Duke's free House Call fits many Boiling Spring Lakes homes: about 89 percent heat with electricity.
Rebate to check in Boiling Spring Lakes: Smart $aver Insulate and Seal (Duke Energy; Insulation Pros is an approved trade ally). Before a job in Boiling Spring Lakes, check its current terms; the Brunswick County page lists every program.
Attic Insulation Removal in Boiling Spring Lakes
In a Boiling Spring Lakes attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Boiling Spring Lakes attic is sanitized and deodorized; dry, clean insulation stays.
Also Serving Near Boiling Spring Lakes
Nearest to Boiling Spring Lakes first.
St. James, NC
7 miles south
Median home built 2011 (Boiling Spring Lakes: 1998)
Attic insulation in St. JamesSouthport, NC
9 miles southeast
Median home built 2003 (Boiling Spring Lakes: 1998); Power from its own town system (Boiling Spring Lakes: Duke Energy Progress)
Attic insulation in SouthportOak Island, NC
9 miles south
Median home built 1997 (Boiling Spring Lakes: 1998)
Attic insulation in Oak IslandCaswell Beach, NC
10 miles south
Median home built 1998, as in Boiling Spring Lakes; 381 people, under a tenth of Boiling Spring Lakes' population
Attic insulation in Caswell Beach
Boiling Spring Lakes Insulation FAQs
Florence's center crossed Brunswick County in 2018. What does that mean for my Boiling Spring Lakes attic?
Check the roof boards and insulation for water. The storm came close: a station at a school in the city logged a pressure of 962.4 millibars, lower than at the Wilmington airport. The Weather Service also reported that Sanford Dam, built in 1961, breached on September 15. Wind brought trees down across the county. Where a falling limb or lost shingles opened the roof, that hole is closed first. Any insulation soaked through below it then comes out by vacuum, and new goes in.
Is anything in Boiling Spring Lakes on a historic register?
No. The state's register roster shows no property inside the city. The 2010 county survey did record the Boiling Spring Lake dam among the sites it studied, but a survey entry is not a listing. The county had no preservation commission on the state's 2023 roll. So no historic rules shape the work. What matters is the house itself: its roof, its wiring and how its attic was framed.
Does attic insulation in Boiling Spring Lakes need a permit?
Boiling Spring Lakes City Hall can say whether Brunswick County Permits & Development, the city itself or another office handles permits in Boiling Spring Lakes; ask before work starts.
Helpful Guides
- Brunswick County is warm and humid by the state energy code: attic condensation and mold
- Power from Duke Energy Progress: high summer electric bills and home energy audits
- Hot summers at NOAA's Southport 5 N station: radiant barriers
Sources
Census Bureau figures for Boiling Spring Lakes, NOAA normals for the Southport 5 N station, Duke Energy Progress (October 2026). Compiled by Insulation Pros. How the town pages are made.
Sources for the Boiling Spring Lakes notes and questions (read October 20, 2026):
- About Us and History, City of Boiling Spring Lakes
- Year Structure Built (table B25034), Boiling Spring Lakes city, American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau via Census Reporter
- Comprehensive Historical/Architectural Site Survey of Brunswick County, North Carolina (Landmark Preservation Associates, September 2010), NC HPO
- Post-World War II and Modern Architecture in Raleigh, North Carolina, 1945-1965, National Register multiple property documentation form (NC HPO)
- Adding Attic Insulation, ENERGY STAR do-it-yourself guide
- About Attic Ventilation, ENERGY STAR do-it-yourself guide
- Hurricane Florence, September 14, 2018, event summary, National Weather Service Wilmington
- Attic Insulation Project, ENERGY STAR
- NC Listings in 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)
Boiling Spring Lakes, NC
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Insulation Pros is an insulation contractor serving North Carolina, Boiling Spring Lakes and the rest of Brunswick County included.
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Send the square footage of your Boiling Spring Lakes attic, or call (336) 870-3893.