How Much Does HVAC Replacement Cost?
Full HVAC system replacement costs $7,000-$20,000. Compare furnace, AC, and heat pump prices with 2026 averages.
Replacing your entire HVAC system is a major investment that affects comfort and energy bills for the next 15-20 years. Here is what homeowners are paying in 2026.
Cost Breakdown
Central AC + Gas Furnace
Heat Pump System (ducted)
Ductless Mini-Split (whole home)
Full System + New Ductwork
What Affects the Cost?
System Type
Heat pumps cost more upfront but reduce energy bills 30-50%. Gas furnaces are cheaper to install in cold climates.
Home Size
A 2,500 sq ft home typically needs a 3-4 ton system. Undersized units run constantly; oversized units short-cycle.
SEER/HSPF Rating
Higher efficiency (16+ SEER) costs $1,000-$3,000 more upfront but saves $200-$500/year on energy bills.
Ductwork Condition
If existing ducts are damaged or undersized, replacing them adds $2,000-$5,000 to the project.
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Frequently Asked Questions
How long does HVAC replacement take?
A straightforward swap takes 1-2 days. If ductwork modifications are needed, expect 3-5 days.
Should I replace AC and furnace at the same time?
Yes. Matching components ensures proper sizing and peak efficiency. Mismatched systems lose 10-15% efficiency.
Are there rebates for new HVAC systems?
The Inflation Reduction Act offers up to $8,000 in heat pump rebates. Many utilities offer additional incentives for high-efficiency equipment.
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