HVAC System Replacement Cost in Richardson, Texas
Expect to pay $10,600 to $23,100 for full HVAC system replacement in Richardson, TX. Most homeowners end up near $17,500, depending on the equipment tier and how much of the old setup can be reused.
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Richardson Weather and HVAC Load
Richardson 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 Richardson. That balance is a big reason heat pumps and dual-fuel systems sell well in Texas. On average, Richardson 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 |
Richardson Housing Stock
The median Richardson home dates to 1985, according to the Census ACS. That makes the typical house about 41 years old. Plenty of houses from this period still run original 1990s or early-2000s equipment, which is past its expected service life. Richardson has roughly 23,000 owner-occupied homes, or 50.8% of households. The median home value is $405,600, and median household income is $96,257. We use both figures to adjust labor and pricing for this page.
Between 2020 and 2025, NOAA's Storm Events Database logged 44 hail days and 30 days with damaging thunderstorm winds in Dallas County. The largest hail reported was 4 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. Dallas County also had 4 tornado days in that period.
When Replacement Makes Sense
- Both units keep needing repairs
- Some rooms are uncomfortable, and the energy bills are high
- Both the heating and cooling equipment are 15 years old or more
What Moves the Price
- Efficiency ratings: SEER2, AFUE and HSPF2
- Permits and electrical work
- Duct repair or replacement
- Furnace plus AC, or heat pump plus air handler
- Thermostat and zoning upgrades
- Equipment sized to the house and climate
We raised the national figures about 25% for Richardson using local income, home values and the equipment size this climate needs. Real bids can still come in outside the range, so collect three written quotes.
What the Quote Should Cover
- Startup, testing and warranty registration
- Duct connections and sealing
- Removing the old equipment
- A load calculation and system design
- New, matched heating and cooling equipment
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). Plan on a mechanical permit for most replacements in Richardson; the contractor normally pulls it. Before you sign, ask each bidder for their 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
- Get one quote for a heat pump system and one for a furnace plus AC.
- Ask for a duct leakage test. Leaky ducts can lose 20 to 30% of what the system puts out.
- Make every bidder quote the same efficiency ratings, or the prices won't compare.
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HVAC System Replacement Questions from Richardson Homeowners
How much is full HVAC system replacement in Richardson?
Plan on $10,600 to $23,100, with most jobs near $17,500. Equipment efficiency, house size and the condition of the ducts and wiring decide where your quote falls.
When is the best time to schedule full HVAC system replacement in Richardson?
In spring or fall. Those are the slow months between heating and cooling season in Richardson.
How often should an HVAC system be replaced?
Most systems get replaced every 15 to 20 years. AC units and heat pumps usually wear out before gas furnaces do.
Can I replace only the AC and keep my furnace?
Yes, as long as the indoor coil and blower work with the new AC. A mismatched system loses efficiency and can void the warranty.
HVAC System Replacement Near Richardson
- Plano $11,200 to $24,300
- Garland $9,200 to $20,000
- Allen $11,700 to $25,400
- League City $11,600 to $25,200
- The Woodlands $13,000 to $28,200
- Odessa $8,700 to $19,000
- New Braunfels $10,000 to $21,700
- College Station $9,300 to $20,200
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, Dallas County. Prices are our estimates, not contractor quotes. Updated 2026.