Dallas County, Texas
Heating and AC repair in Duncanville, TX
Call and describe the problem, whether the furnace will not light, the heat pump is iced over or the air conditioner is blowing warm air, and you will be connected with an independent HVAC contractor serving Duncanville.
Your call is connected to an independent HVAC contractor, subject to availability in your area. HVAC Nation may receive compensation when your call is connected with a participating provider. Providers are independent businesses.
Duncanville at a glance
Heating and cooling climate
NOAA's 1991–2020 climate normals for the DALLAS REDBIRD AP, TX station show about 2,093 heating degree days and 2,835 cooling degree days in a typical year, with about 27 nights at or below freezing and 104 days reaching 90°F or more. Heating and cooling demand are roughly balanced, so the heating system and the air conditioner both work hard in their seasons.
How homes in Duncanville are heated
According to the Census Bureau's American Community Survey, 61% of occupied homes in Duncanville heat mainly with electricity and 38% with utility gas. With electric heat this common, heat pumps and electric furnaces are widespread, and a heat pump failure can take out both heating and cooling at once.
Housing age and HVAC systems
The median year built for housing in Duncanville is 1978, and about 58% of its 14,027 housing units were built before 1980. Homes from this era commonly have forced-air furnaces with ductwork, and many have had the original furnace and air conditioner replaced at least once.
Services most relevant in Duncanville
- Furnace Repair (2,093 heating degree days a year)
- Heat Pump Repair (61% of homes heat with electricity)
- AC Repair (about 104 days a year at 90°F or more)
- AC Replacement (median home built in 1978, many systems on their second or third AC)
- HVAC Repair (one call when you are not sure which part failed)
Owners, landlords and tenants
About 66% of occupied homes in Duncanville are owner-occupied and 34% are rented. Homeowners, landlords and property managers can call to be connected; tenants should contact their landlord or property manager about heating or cooling problems first.
Nearby places
Duncanville is in Dallas County. Places within about 30 miles include Dallas (13 mi), Fort Worth (27 mi), Arlington (13 mi), Plano (30 mi) and Irving (15 mi).
Other Texas locations
Burleson (26 mi), The Colony (31 mi), Fate (37 mi), Palestine (96 mi), Harker Heights (118 mi), Lockhart (197 mi), Fulshear (213 mi), Groves (257 mi), Bay City (259 mi), Portland (330 mi), Alice (345 mi), Eagle Pass (345 mi), Kingsville (359 mi), Pharr (454 mi)
Questions
Is HVAC Nation an HVAC company in Duncanville?
No. HVAC Nation is a referral service. Calls from Duncanville are connected to an independent HVAC contractor, subject to availability in Dallas County.
How do most homes in Duncanville heat?
Census survey data shows about 38% of homes heat mainly with utility gas, 61% with electricity, 1% with propane and 0% with fuel oil.
How cold and hot does it get around Duncanville?
NOAA normals for the DALLAS REDBIRD AP, TX station average about 27 nights a year at or below 32°F and 104 days at 90°F or above.
Is a permit needed to replace a furnace or air conditioner in Duncanville?
Many cities and counties require mechanical or electrical permits for equipment replacement. Check with the local building department for Duncanville or Dallas County, and ask the contractor.
What should I do if I smell gas?
Leave the home right away without using switches or phones inside, then call the gas utility emergency line or 911 from outside.
Sources: U.S. Census Bureau Vintage 2024 population estimates; American Community Survey 2020–2024 5-year (tables B25040 house heating fuel, B25034, B25035, B25003); 2024 Gazetteer; NOAA NCEI U.S. Climate Normals 1991–2020 (heating and cooling degree days, base 65°F).