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Forest Hills, NC
13 miles northeast
Power from Duke Energy (Franklin: Duke Energy Carolinas); Center about 170 feet higher than Franklin's
Attic insulation in Forest HillsInsulation Contractor Serving Franklin, NC
Blown-in attic insulation for Franklin, NC, in Macon County, plus removal and air sealing.
About Franklin and Its Homes
Franklin, the Macon County seat on the Little Tennessee River, had its town lots auctioned in 1820 and was incorporated in 1855. Its oldest houses began as log dwellings, and the county's early twentieth century bungalows, plain ones for the most part, were built mainly in town.
Franklin, in Macon County, grew from 4,172 people in 2020 to 4,403 in 2025 (Census Bureau estimates), on 4.94 square miles. No town in Macon County has more people than Franklin.
Franklin has about 2,500 housing units, 9 percent of Macon County's; about 58 percent of the town's households own their home.
Franklin at a Glance
- County: Macon County
- Population: 4,403 (2025), 4,172 (2020), up 5.5%
- Land area: 4.94 square miles (891 people each)
- Housing units: about 2,500 (±263)
- Median year built: 1981 (±3); Macon County: 1987
- Owner-occupied: 58% (±7); Macon County: 78%
- Detached houses: 65% (±5); Macon County: 76%
- Attached houses: 2% (±2)
- Apartments: 28% (±9)
- Mobile homes: 5% (±3)
- Climate zone: 4 on both maps
- ENERGY STAR target for Franklin attics: R-60 from bare, R-49 over 3 to 4 inches (R-value guide)
Census Bureau estimates for Franklin, 2020 to 2024 (± margin of error).
Franklin Homes and Their Attics
Big Brick Chimneys in the Older Attics
Franklin's National Register houses include a brick home from the 1870s that belonged to a town magistrate and contractor. Its nomination describes an unfinished full attic under exposed rafters, with two massive interior brick chimneys taking up much of the space. A chimney that climbs through the attic floor like that leaves an open ring at the ceiling where house air escapes. We cover that ring with sheet aluminum, sealed with a caulk rated for high heat. Foam never goes there. A sheet-metal collar then holds the new insulation back, since ENERGY STAR says building codes generally want masonry kept 2 inches clear.
Log Cores Wrapped in Later Frame Rooms
The county's architectural study says Franklin's first homes were pole log cabins, followed by sturdier hewn log houses. One survives inside a listed house off West Main Street, long known locally as the house at the foot of the hill. It began as a two-story log dwelling, was enlarged with frame rooms around 1820 to 1830, and gained one-story additions on the west and rear late in the nineteenth century. A house that grew this way may not have one simple attic. Each wing under its own roof can hold a separate space with its own depth of insulation, or none at all. We check every section and bring each to an even depth.
Attic Insulation in Franklin
About 30 percent of Franklin's homes predate 1970; if your joists show above the insulation, ENERGY STAR says to add more insulation.
Built from 1970 to 1989, about 45 percent of Franklin homes may hold settled fiberglass; check its depth against the joists.
The Local Climate
Franklin's center sits about 2,120 feet above sea level, under a mile from NOAA's Franklin station, the best match for Franklin. The station's 1991 to 2020 normals average about 4,130 heating and 900 cooling degree days a year, so at Franklin's station, heating needs outweigh cooling.
Homes by Age: What It Means for the Attic
Some 65 percent of Franklin housing units are detached single-family houses.
From 1990 to 2009, about 20 percent of Franklin homes were built to codes below ENERGY STAR's target; check their eaves, where ENERGY STAR says insulation is often thinnest.
About 45 percent of Franklin's housing units predate 1980; nearly all predate the state's 1978 insulation rule too. About 28 percent of Franklin units sit in buildings of two or more homes, where the attic is often shared.
Homes by Year Built
- Before 1940: 12% (±5), about 310 units
- 1940s: under 1%, about 15 units
- 1950s: 6% (±3), about 150 units
- 1960s: 10% (±4), about 245 units
- 1970s: 19% (±7), about 480 units
- 1980s: 27% (±8), about 690 units
- 1990s: 9% (±4), about 235 units
- 2000s: 11% (±6), about 265 units
- 2010s: 5% (±4), about 125 units
- 2020 or later: under 2%, about 15 units
Air Sealing and Duct Sealing in Franklin
In Franklin, about 76 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: 76% (±9), about 1,740 households; Macon County: 67%
- Piped gas: 13% (±5), about 295 households
- Bottled or tank gas: 6% (±5), about 140 households
- Oil or kerosene: 3% (±3), about 75 households
- Wood: 1% (±1), about 35 households
Power, Gas and Rebates
Duke Energy Carolinas supplies Franklin's electricity. For gas, Franklin is in the Macon County franchise of Toccoa Natural Gas, and 13 percent of the town's homes heat with piped gas. Duke's free House Call fits many Franklin homes: about 76 percent heat with electricity.
Rebate to check in Franklin: Smart $aver Insulate and Seal (Duke Energy; Insulation Pros is an approved trade ally). Before a job in Franklin, check its current terms; the Macon County page lists every program.
Attic Insulation Removal in Franklin
In a Franklin attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Franklin attic is sanitized and deodorized; dry, clean insulation stays.
Also Serving Near Franklin
Nearest to Franklin first.
Highlands, NC
14 miles southeast
Median home built 1981, as in Franklin; Power from its own town system (Franklin: Duke Energy Carolinas)
Attic insulation in HighlandsWebster, NC
15 miles northeast
387 people, under a tenth of Franklin's population
Attic insulation in WebsterDillsboro, NC
15 miles northeast
Its NOAA station logs about 210 more heating degree days than Franklin's; 217 people, under a tenth of Franklin's population
Attic insulation in Dillsboro
Franklin Insulation FAQs
Is my Franklin house in a historic district with rules for insulation work?
Not one with rules for the attic. The state's National Register list added the Downtown Franklin Historic District in 2026, and it also shows seven individual listings in town. The Cowee-West's Mill district lies outside the town. The state preservation office's commission roster, dated 2023, shows no commission anywhere in Macon County. National Register listing alone places no restriction on a private owner spending private money. Insulating and sealing an attic happen inside the house either way.
What needs a look before insulation goes into an old Franklin bungalow?
The wiring, first. The county study places most of Macon County's early bungalows in Franklin, built in the first half of the 1900s. Wiring put in before about 1930 can include knob-and-tube runs, and ENERGY STAR warns those can start a fire if insulation is packed against them. So an electrician looks first, and any run still live is left open. We also make sure bath and kitchen fans vent outdoors, not into the attic.
Are there rebates for attic insulation in Franklin?
Duke Energy's Smart $aver Insulate and Seal is the one to check: a rebate for attic insulation done together with air sealing, and a separate one for duct sealing, when the attic starts at R-19 or less; a contractor in Duke's Smart $aver network must do the work, and Insulation Pros is an approved Duke Energy trade ally. Check its current terms. The Macon County page lists every other program.
Could the old insulation in a Franklin attic be vermiculite?
It could: about 20 percent of Franklin's homes predate 1960. If a Franklin attic holds a pebble-like gray-brown or silver-gold fill, leave it undisturbed: the EPA says vermiculite may contain asbestos.
How do I choose an insulation company in Franklin?
Compare written estimates for your Franklin attic listing air sealing, any removal and the added depth; for Duke Energy's rebate the contractor must be in Duke's network, and Insulation Pros is an approved Duke Energy trade ally.
Does attic insulation in Franklin need a permit?
Franklin Town Hall can say whether Macon County Planning & Code Enforcement, the town itself or another office handles permits in Franklin; ask before work starts.
Helpful Guides
- Mountain winters: attic ventilation and attic stairs and hatches
- Power from Duke Energy Carolinas: high summer electric bills and home energy audits
Sources
Census Bureau figures for Franklin, NOAA normals for the Franklin station, Duke Energy Carolinas (October 2026). Compiled by Insulation Pros. How the town pages are made.
Sources for the Franklin notes and questions (read October 20, 2026):
- Franklin, in The North Carolina Gazetteer (William S. Powell, 2nd ed., UNC Press 2010), NCpedia
- Historic and Architectural Resources of Macon County, North Carolina, ca. AD 600-1945, National Register multiple property documentation form (NC HPO)
- Albert Swain Bryson House, National Register nomination (NC HPO)
- Jesse R. Siler House, National Register nomination (NC HPO)
- Furnace Flues Require Special Sealing Techniques, ENERGY STAR do-it-yourself guide
- Adding Attic Insulation, ENERGY STAR do-it-yourself guide
- 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)
- What Is the National Register of Historic Places?, NC State Historic Preservation Office
- Attic Insulation Project, ENERGY STAR
Franklin, NC
Open in Google Maps (opens in a new tab)Serving Franklin, NC
Insulation Pros is an insulation contractor serving North Carolina, Franklin and the rest of Macon County included.
Reach us
Send the square footage of your Franklin attic, or call (336) 870-3893.