Furnace Replacement Cost in Carrollton, Texas
Our 2026 estimate for furnace replacement in Carrollton, TX is $3,400 to $8,300. That puts Carrollton 7% above the national average, mainly because of higher incomes and home values, which push labor rates up.
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Carrollton Weather and HVAC Load
Carrollton logs 2,294 heating degree days and 2,612 cooling degree days in a normal year, based on the closest NOAA weather station. Neither season dominates in Carrollton. That balance is a big reason heat pumps and dual-fuel systems sell well in Texas. On average, Carrollton gets 35 freezing nights and 93 days above 90°F per year. Snowfall averages about 2 inches. For a 2,000 sq ft house, this climate points to a heating load somewhere near 40,000 BTU/h. Treat that as a starting number. A Manual J calculation will move it up or down based on insulation and windows.
| Heating degree days / year | 2,294 |
|---|---|
| Cooling degree days / year | 2,612 |
| Nights at or below 32°F | 35 |
| Days above 90°F | 93 |
| Average low / high | 55.8°F / 75.8°F |
Carrollton Housing Stock
Census figures put the median build year in Carrollton at 1988, so a typical house here has about 38 years on it. Plenty of houses from this period still run original 1990s or early-2000s equipment, which is past its expected service life. Owners live in 58.3% of occupied homes, roughly 30,000 households. The median home value is $353,600, and median household income is $99,115. We use both figures to adjust labor and pricing for this page.
Between 2020 and 2025, NOAA's Storm Events Database logged 53 hail days and 31 days with damaging thunderstorm winds in Denton County. The largest hail reported was 5.9 inches across. Hail flattens the thin aluminum fins on condenser coils and cuts airflow. After a big storm, take a look at the outdoor unit; homeowners insurance often covers the damage. Denton County also had 4 tornado days in that period.
When Replacement Makes Sense
- A tech found a cracked heat exchanger, or the CO detector has gone off
- The furnace is 15 to 20 years old or more
- Gas or electric bills keep climbing even though usage hasn't changed
- A repair quote runs past a third of the cost of a new unit
What Moves the Price
- BTU size, which should come from a Manual J load calculation
- Single-stage, two-stage or modulating gas valve
- New PVC venting if you move to a condensing model
- Condition of the existing ductwork and any changes it needs
- Permit and inspection fees, which the local building department sets
- AFUE rating: a basic 80% unit vs. a 96% condensing furnace
For Carrollton we raised the national figures about 7%, based on local income, home values and climate-based equipment sizing. Get at least three written quotes; real bids can land outside this range.
What the Quote Should Cover
- The permit and the manufacturer warranty registration
- Removing and hauling away the old furnace
- The new furnace, filter rack and thermostat wiring
- Gas line and vent connections
- Combustion and safety tests
Texas Permits, Efficiency Rules and Rebates
Texas is in the DOE's Southeast region, where new split central air conditioners need at least 14.3 SEER2 (13.8 SEER2 for systems of 45,000 BTU/h and up). Expect the contractor to pull a mechanical permit for a replacement job in Carrollton. If a bidder suggests skipping it, move on. Also ask for a Texas license or registration number and proof of insurance. The federal 25C tax credit ended for equipment installed after December 31, 2025, so incentives now come mostly from utilities and state programs. Check your electric and gas utility's rebate page before you pick equipment.
Before You Hire
- Replace it in early fall if you can. A no-heat emergency in January costs more and leaves you fewer choices.
- Make sure all three quotes are for the same AFUE and staging, or you can't compare them.
- Ask for the Manual J load calculation in writing. Oversized furnaces are the most common mistake we see.
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Furnace Replacement Questions from Carrollton Homeowners
How much is furnace replacement in Carrollton?
Plan on $3,400 to $8,300, with most jobs near $6,100. Equipment efficiency, house size and the condition of the ducts and wiring decide where your quote falls.
When is the best time to schedule furnace replacement in Carrollton?
In spring or fall. Those are the slow months between heating and cooling season in Carrollton.
How long does a furnace replacement take?
A straight swap is usually done in one day, somewhere between 4 and 10 hours. Moving to a condensing furnace with new PVC venting can add a few more.
Is a high-efficiency furnace worth it?
In cold climates, a 95%+ AFUE furnace usually earns back the price difference in lower gas bills. Where winters are mild, the payback can take a very long time.
Furnace Replacement Near Carrollton
- Lewisville $3,300 to $8,000
- Plano $3,700 to $8,900
- Irving $3,100 to $7,600
- Grapevine $3,800 to $9,100
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Richardson; NOAA Storm Events Database 2020-2025, Denton County. Prices are our estimates, not contractor quotes. Updated 2026.