How much does an hvac replacement cost?
What it costs to replace an HVAC system in 2026 — furnace, AC, or heat pump — and what changes the price.
A typical hvac replacement runs $6,000–$13,000, or about Installed, per system. The national average is around $9,000. Your final price depends most on the size of the project, the materials you choose, and local labor rates.
Replacing a heating and cooling system is a major but infrequent expense. A full HVAC replacement typically costs $6,000–$13,000, averaging around $9,000. Unit efficiency, system type, and ductwork condition move the number most.
Cost breakdown
What drives the cost
Higher SEER2 / AFUE ratings cost more upfront but cut energy bills. Sizing must match the home.
Leaky or undersized ducts may need repair or replacement, adding to the project.
Heat pumps, dual-fuel, and zoned systems cost more than a straight AC-plus-furnace swap.
Local labor rates and climate-driven sizing affect both equipment and install cost.
Cost by region
Common mistakes to avoid
A too-big unit short-cycles, wastes energy, and wears out faster. Insist on a load calculation.
A new unit on leaky ducts underperforms. Have ducts inspected before you buy.
Install quality matters more than brand. A cheap install undermines even a premium unit.
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Frequently asked questions
A full replacement typically runs $6,000–$13,000, averaging about $9,000. All-electric heat pump systems can run higher.
Furnaces last 15–20 years, ACs 12–17, and heat pumps 12–15. Replace before an old unit fails in peak season.
In many climates yes — heat pumps heat and cool efficiently and may qualify for rebates or tax credits that offset the price.
A straightforward swap takes about 1 day; adding ductwork or converting system types can take 2–3 days.
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