HVAC System Replacement Cost in Cedar Park, Texas
Expect to pay $12,000 to $26,000 for full HVAC system replacement in Cedar Park, TX. Most homeowners end up near $19,700, depending on the equipment tier and how much of the old setup can be reused.
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Cedar Park Weather and HVAC Load
In a normal year, Cedar Park racks up 1,903 heating and 2,746 cooling degree days (NOAA 1991-2020 normals). Cooling carries most of the load, which is why compressors and condenser fan motors wear out faster here than in northern cities. On average, Cedar Park gets 27 freezing nights and 114 days above 90°F per year. For a 2,000 sq ft house, this climate points to a heating load somewhere near 35,000 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 | 1,903 |
|---|---|
| Cooling degree days / year | 2,746 |
| Nights at or below 32°F | 27 |
| Days above 90°F | 114 |
| Average low / high | 55.8°F / 78.7°F |
Cedar Park Housing Stock
Census figures put the median build year in Cedar Park at 2004, so a typical house here has about 22 years on it. Plenty of houses from this period still run original 1990s or early-2000s equipment, which is past its expected service life. Cedar Park has roughly 19,000 owner-occupied homes, or 67.3% of households. With a median household income of $123,972 and a median home value of $474,800, local labor rates come out above the national middle in our model.
NOAA storm reports for Williamson County show 29 hail days and 14 days with damaging thunderstorm winds over the six years from 2020 to 2025. 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. Williamson County also had 3 tornado days in that period.
When Replacement Makes Sense
- Both the heating and cooling equipment are 15 years old or more
- An old R-22 AC paired with an aging furnace
- Both units keep needing repairs
What Moves the Price
- Efficiency ratings: SEER2, AFUE and HSPF2
- Furnace plus AC, or heat pump plus air handler
- Equipment sized to the house and climate
- Permits and electrical work
- Thermostat and zoning upgrades
- Duct repair or replacement
For Cedar Park we raised the national figures about 41%, 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
- A load calculation and system design
- Removing the old equipment
- New, matched heating and cooling equipment
- Startup, testing and warranty registration
- Duct connections and sealing
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 Cedar Park. 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
- Get one quote for a heat pump system and one for a furnace plus AC.
- Make every bidder quote the same efficiency ratings, or the prices won't compare.
- Replacing both pieces at once usually costs less than two separate jobs a few years apart.
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HVAC System Replacement Questions from Cedar Park Homeowners
How much is full HVAC system replacement in Cedar Park?
Plan on $12,000 to $26,000, with most jobs near $19,700. 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 Cedar Park?
Between late fall and early spring. With 114 days over 90°F, Cedar Park contractors are booked solid all summer, and off-season jobs are easier to schedule and negotiate.
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.
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.
HVAC System Replacement Near Cedar Park
- Leander $12,500 to $27,100
- Round Rock $10,700 to $23,200
- Georgetown $10,600 to $23,000
- Missouri City $10,400 to $22,600
- San Marcos $8,800 to $19,200
- Flower Mound $13,000 to $28,400
- Harlingen $8,800 to $19,200
- Mansfield $11,300 to $24,700
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Austin Great Hills; NOAA Storm Events Database 2020-2025, Williamson County. Prices are our estimates, not contractor quotes. Updated 2026.