How much does HVAC replacement cost?

Updated March 25, 2026 · Expert-verified answer

Quick Answer

A full HVAC system replacement costs $5,000 to $12,000, including both heating and cooling units.

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Cost Breakdown

Service Low High Notes
Complete HVAC (standard) 5000 9000 80% furnace + 14 SEER AC
Complete HVAC (high-efficiency) 8000 15000 95%+ furnace + 18+ SEER AC
Heat pump system 4000 8000 Heating and cooling in one
Ductwork replacement 2000 5000 If existing ducts damaged

HVAC Replacement Cost

Replacing your entire HVAC system is a major investment most homeowners face every 15-20 years. Typical cost: $5,000-$12,000, with premium systems exceeding $15,000.

What's Included

Complete replacement includes outdoor condenser, indoor air handler or furnace, thermostat, and sometimes ductwork modifications. Labor is 30-40% of total cost.

Cost Factors

System size (tons), SEER/AFUE ratings, brand, and home accessibility all impact pricing.

Signs You Need Replacement

Frequent repairs, uneven temperatures, rising energy bills, and age over 15 years are clear indicators.

Choosing Right

Heat pumps offer heating and cooling in one unit for moderate climates. Traditional split systems work best in areas with extreme winters.

Related Questions

How often should HVAC be replaced?

Every 15-20 years. Regular maintenance extends lifespan but efficiency drops after 15 years.

Can I replace just the AC or furnace?

Yes, but replacing both ensures components are matched for optimal efficiency.

What SEER rating should I choose?

Minimum is 14-15 by region. 16-18 SEER offers a good balance of efficiency and cost.