HVAC System Replacement Cost in Longview, Texas
Expect to pay $8,600 to $18,700 for full HVAC system replacement in Longview, TX. Most homeowners end up near $14,200, depending on the equipment tier and how much of the old setup can be reused.
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Longview Weather and HVAC Load
In a normal year, Longview racks up 2,120 heating and 2,750 cooling degree days (NOAA 1991-2020 normals). Neither season dominates in Longview. That balance is a big reason heat pumps and dual-fuel systems sell well in Texas. A normal year brings 38 nights at or below freezing and 111 days over 90°F. 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 | 2,120 |
|---|---|
| Cooling degree days / year | 2,750 |
| Nights at or below 32°F | 38 |
| Days above 90°F | 111 |
| Average low / high | 55.4°F / 77.9°F |
Longview Housing Stock
Census figures put the median build year in Longview at 1978, so a typical house here has about 48 years on it. A lot of these homes are on their second or third system by now. The ductwork is usually original, and leaky joints are common. Longview has roughly 17,000 owner-occupied homes, or 53.4% of households. The median home value is $182,700, and median household income is $62,488. We use both figures to adjust labor and pricing for this page.
Between 2020 and 2025, NOAA's Storm Events Database logged 9 hail days and 22 days with damaging thunderstorm winds in Gregg County. The largest hail reported was 2.75 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. Gregg County also had 2 tornado days in that period.
When Replacement Makes Sense
- Both units keep needing repairs
- Both the heating and cooling equipment are 15 years old or more
- Some rooms are uncomfortable, and the energy bills are high
What Moves the Price
- Thermostat and zoning upgrades
- Efficiency ratings: SEER2, AFUE and HSPF2
- Furnace plus AC, or heat pump plus air handler
- Permits and electrical work
- Duct repair or replacement
- Equipment sized to the house and climate
We kept the national figures close to unchanged for Longview 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
- Removing the old equipment
- New, matched heating and cooling equipment
- Duct connections and sealing
- A load calculation and system design
- Startup, testing and warranty registration
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). Equipment replacements in Longview generally need a mechanical permit, and a reputable contractor will pull it for you. Ask for their Texas license or registration number and a certificate of insurance with the quote. 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
- 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.
- Get one quote for a heat pump system and one for a furnace plus AC.
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HVAC System Replacement Questions from Longview Homeowners
How much is full HVAC system replacement in Longview?
Plan on $8,600 to $18,700, with most jobs near $14,200. 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 Longview?
In spring or fall. Those are the slow months between heating and cooling season in Longview.
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 Longview
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Longview; NOAA Storm Events Database 2020-2025, Gregg County. Prices are our estimates, not contractor quotes. Updated 2026.