HVAC Replacement Cost Calculator
Enter your home size, system type, and efficiency rating to get an instant cost estimate — no sign-up required.
Estimate Your Cost
Estimates based on national averages — actual quotes may vary.
Typical home: 1,000–3,000 sq ft
15–20 yrs lifespan
Meets minimum efficiency requirements
System Type Comparison
| System | Typical Cost | Lifespan | Best For |
|---|---|---|---|
Central Air + Furnace | $4,000–$8,000 | 15–20 yrs | Most common, heats and cools entire home |
Mini-Split System | $3,000–$7,000 | 20–25 yrs | No ductwork needed, zone control, very efficient |
Heat Pump | $5,000–$10,000 | 15–20 yrs | Heats and cools, highly efficient in mild climates |
Window Units | $300–$1,500 | 8–12 yrs | Low upfront cost, easy to install, room-by-room |
What Affects Your Final Cost
Home size
Larger homes need higher-capacity units. Every 500 sq ft adds roughly 0.5 tons of capacity needed.
System type
Central systems cost more than window units but serve the whole home. Mini-splits are mid-range with zone control.
SEER efficiency rating
Higher SEER units cost 20–65% more upfront but reduce monthly utility bills by 15–30%.
Ductwork condition
Leaky or old ducts reduce efficiency. Duct sealing or replacement adds $1,000–$5,000 to the project.
Brand and warranty
Premium brands (Trane, Carrier, Lennox) cost more but often include longer warranties and better reliability.
Local labor rates
HVAC labor varies 30–50% by region. Urban markets and areas with high demand run significantly higher.
Frequently Asked Questions
Pro Tip
Replace your HVAC in spring or fall when demand is low. Contractors are less busy and you may negotiate a better price — plus you won't be without heat or AC during extreme weather.
Money-Saving Tips
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