HVAC System Cost Calculator
Estimate replacement and installation cost for your home in seconds.
Calculate your HVAC cost
Your estimated HVAC cost
Cost by home size for your system
Same system type and efficiency, priced at the mid estimate. Your home size is highlighted.
How HVAC system costs work
This free HVAC system cost calculator estimates replacement and installation prices for homeowners planning a new heating and cooling system. It runs entirely in your browser, needs no sign-up, and uses 2024 to 2025 United States average prices. According to the US Energy Information Administration, space heating and air conditioning accounted for 51 percent of household energy use in 2015, so choosing the right system size and efficiency matters for both comfort and bills.
How much does it cost to replace an HVAC system?
A typical full HVAC replacement in the United States costs between $5,000 and $12,500, depending on home size, system type and efficiency rating. A 2,000 square foot home with a central air conditioner and furnace usually lands near $10,400 at mid-range efficiency. Ductwork repairs, permits and old unit removal can add to the final bill.
What size HVAC system does my home need?
Most installers use a rough rule of one ton of cooling for every 500 square feet of living space, so a 2,000 square foot home usually needs a 4 ton system. Ceiling height, insulation, window area and local climate all shift the real number. A professional load calculation, known as a Manual J, gives the exact size before you buy.
Is a higher SEER rating worth paying more for?
A higher SEER rating means the system uses less electricity for the same cooling, so it pays back over time in hot climates or in homes that run the air conditioner all summer. In mild climates the savings are smaller and a SEER 16 unit is often the best value. Compare the extra install cost with the running cost saving.
How much does it cost to run an HVAC system each year?
Running costs depend on system size, local electricity prices and how many hours the system runs. This calculator estimates yearly electricity use at 1,200 kilowatt hours per ton, priced at 17 cents per kilowatt hour, then adjusts for efficiency. A 4 ton SEER 16 system comes to roughly $714 a year, before heating fuel costs.
Should I choose central air, a heat pump or a ductless mini-split?
Central air with a furnace suits homes that already have ductwork and cold winters. A heat pump heats and cools in one unit and works well in mild to moderate climates. A ductless mini-split suits homes without ducts, room additions and zoned cooling. Your climate, ductwork and heating needs should decide the choice.
What assumptions does this calculator use?
The calculator uses one ton of cooling per 500 square feet, rounded up to the nearest half ton. Base prices are $2,400 per ton for central air, $3,200 for a heat pump and $2,800 for a ductless system, plus $400 for each SEER point above 14. Labour is 40 percent of the total.
Frequently asked questions
How accurate is this HVAC cost calculator?
It gives a planning estimate based on national averages, not a quote. Real prices vary by region, brand, ductwork condition and installer. Use the range as a budget guide, then get at least three local quotes before you commit.
Does the estimate include ductwork?
No. The estimate covers the equipment and standard installation labour only. New ductwork, duct repairs, electrical upgrades and permits are usually charged separately and can add a large amount to the job.
What does SEER mean?
SEER stands for Seasonal Energy Efficiency Ratio. It measures how much cooling a system delivers for each unit of electricity over a whole season. A higher SEER number means a more efficient system and lower running costs.
How long does an HVAC system last?
Most systems last 15 to 20 years with regular maintenance. Furnaces often last a little longer than air conditioners. A system that needs frequent repairs, or one over 15 years old with rising bills, is usually worth replacing.
Can I install an HVAC system myself?
Installing a full system yourself is not recommended. The work involves refrigerant handling, electrical wiring and gas lines, and most areas require a licensed installer and a permit. A poor install can also void the equipment warranty.
How often should I change the air filter?
Check the filter every month and replace it every one to three months, depending on the filter type and how much dust or pet hair is in the home. A clogged filter makes the system work harder and raises running costs.
Does this calculator store or send my data?
No. The calculator runs entirely in your browser. Nothing you type is uploaded, stored or shared.
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