Lake Park, NC
2 miles south
Median home built 1997 (Hemby Bridge: 1975); 3,609 people, about twice Hemby Bridge's population
Attic insulation in Lake ParkAttic Insulation in Hemby Bridge, NC
Blown-in attic insulation for Hemby Bridge, NC, 2 miles from Lake Park, plus removal and air sealing.
About Hemby Bridge and Its Homes
Hemby Bridge, in Union County, became a town in 1998, once people in the area approved the General Assembly's charter at that fall's general election. Its boundary follows Crooked Creek in places and was drawn to take in whole streets of homes already standing.
Hemby Bridge, in Union County, grew from 1,616 people in 2020 to 1,764 in 2025 (Census Bureau estimates), on 2.29 square miles.
Hemby Bridge has about 790 housing units, 1 percent of Union County's; about 85 percent of the town's households own their home.
Hemby Bridge at a Glance
- County: Union County
- Population: 1,764 (2025), 1,616 (2020), up 9.2%
- Land area: 2.29 square miles (770 people each)
- Housing units: about 790 (±162)
- Median year built: 1975 (±3); Union County: 2000
- Owner-occupied: 85% (±6); Union County: 82%
- Detached houses: 94% (±5); Union County: 86%
- Attached houses: under 7%
- Mobile homes: 2% (±2)
- Climate zone: 3 on both maps
- ENERGY STAR target for Hemby Bridge attics: R-49 from bare, R-38 over 3 to 4 inches (R-value guide)
Census Bureau estimates for Hemby Bridge, 2020 to 2024 (± margin of error).
Hemby Bridge Homes and Their Attics
Houses That Came Before the Town
Because the charter took in neighborhoods that were already built, the town's 1998 date says nothing about the age of any one house. The housing figures on this page count fewer than half of the town's homes as older than 1970. An attic that has had decades of house air seeping up through it can show it: gray or black streaking across the top of old insulation. ENERGY STAR reads that staining as a trail left by moving air. We seal the leak underneath. The streaked insulation itself is normally fine to keep.
Attic Insulation in Hemby Bridge
About 35 percent of Hemby Bridge's homes predate 1970; if your joists show above the insulation, ENERGY STAR says to add more insulation.
Built from 1970 to 1989, about 35 percent of Hemby Bridge homes may hold settled fiberglass; check its depth against the joists.
The Local Climate
Hemby Bridge's center sits about 640 feet above sea level, 7 miles from NOAA's Monroe Airport station, the best match for Hemby Bridge. The station's 1991 to 2020 normals average about 3,060 heating and 1,710 cooling degree days a year, so at Hemby Bridge's station, heating needs outweigh cooling.
Homes by Age: What It Means for the Attic
Some 94 percent of Hemby Bridge housing units are detached single-family houses.
Built from 1940 to 1969, about 35 percent of Hemby Bridge homes often have little insulation.
About 65 percent of Hemby Bridge's housing units predate 1980; nearly all predate the state's 1978 insulation rule too.
Homes by Year Built
- Before 1940: under 7%, about 20 units
- 1940s: under 18%, about 65 units
- 1950s: under 2%
- 1960s: 25% (±6), about 200 units
- 1970s: 26% (±9), about 205 units
- 1980s: 9% (±6), about 75 units
- 1990s: 13% (±5), about 100 units
- 2000s: 10% (±5), about 75 units
- 2010s: 6% (±4), about 45 units
- 2020 or later: under 2%
Air Sealing and Duct Sealing in Hemby Bridge
In Hemby Bridge, about 70 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: 70% (±7), about 540 households; Union County: 45%
- Piped gas: 18% (±4), about 135 households
- Bottled or tank gas: under 20%, about 75 households
Power, Gas and Rebates
Power in and around Hemby Bridge comes from Duke Energy Carolinas and Union Power Cooperative; your bill says which. For gas, Hemby Bridge is in the Union County franchise of Piedmont Natural Gas, and 18 percent of the town's homes heat with piped gas. Duke's free House Call fits many Hemby Bridge homes: about 70 percent heat with electricity.
Rebate to check if Duke Energy Carolinas serves your Hemby Bridge home: Smart $aver Insulate and Seal (Duke Energy; Insulation Pros is an approved trade ally). Before a job in Hemby Bridge, check its current terms; the Union County page lists every program.
Attic Insulation Removal in Hemby Bridge
In a Hemby Bridge attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Hemby Bridge attic is sanitized and deodorized; dry, clean insulation stays.
Also Serving Near Hemby Bridge
Nearest to Hemby Bridge first.
Stallings, NC
2 miles west
Median home built 2002 (Hemby Bridge: 1975); 17,760 people, about 10 times Hemby Bridge's population
Attic insulation in StallingsIndian Trail, NC
3 miles southwest
Median home built 2004 (Hemby Bridge: 1975); 44,303 people, about 25 times Hemby Bridge's population
Attic insulation in Indian TrailMatthews, NC
5 miles west
Median home built 1994 (Hemby Bridge: 1975); 32,769 people, about 19 times Hemby Bridge's population
Attic insulation in MatthewsMint Hill, NC
5 miles north
Median home built 1992 (Hemby Bridge: 1975); 29,476 people, about 17 times Hemby Bridge's population
Attic insulation in Mint Hill
Hemby Bridge Insulation FAQs
Is anything in Hemby Bridge on a historic register?
Nothing the state has recorded. The State Historic Preservation Office's lists show no National Register property in the town or close by. Union County's three local commissions on the office's 2023 roster belong to Monroe, Waxhaw and the county government, with none for this town. Unless you know your house carries a county landmark designation, historic review does not enter into attic work here.
We heat our Hemby Bridge house with a gas furnace. Does sealing the attic affect it?
It can, so plan for a check. ENERGY STAR notes that tightening a house can, in some cases, make a naturally venting gas or oil appliance draw its exhaust back indoors. Its advice is to have those appliances tested for proper drafting before and after the sealing. The furnace flue that rises through the attic gets its own treatment too: aluminum flashing and heat-resistant caulk at the ceiling, never foam, with a metal dam holding insulation back.
Does attic insulation in Hemby Bridge need a permit?
Hemby Bridge Town Hall can say whether Union County Development Services, the town itself or another office handles permits in Hemby Bridge; ask before work starts.
Sources
Census Bureau figures for Hemby Bridge, NOAA normals for the Monroe Airport station (October 2026). Compiled by Insulation Pros. How the town pages are made.
Sources for the Hemby Bridge notes and questions (read October 20, 2026):
- Session Law 1998-143 (Senate Bill 1514), An Act to Incorporate the Town of Hemby Bridge, North Carolina General Assembly
- Year Structure Built (table B25034), Hemby Bridge town, American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau via Census Reporter
- Attic Air Sealing 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)
- Furnace Flues Require Special Sealing Techniques, ENERGY STAR do-it-yourself guide
Hemby Bridge, NC
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Insulation Pros is an insulation contractor serving North Carolina, Hemby Bridge and the rest of Union County included.
Reach us
Send the square footage of your Hemby Bridge attic, or call (336) 870-3893.