Energy & Efficiency
HVAC Replacement Cost Calculator
This HVAC replacement calculator estimates equipment, labor, ductwork, and project totals for common residential heating and cooling systems.
Free planning tool
Estimated Project Range
Low$11,817
Average$14,411
High$17,005
Cost per home sq ft$8
Cost Breakdown
Equipment$9,272
Labor$4,473
Ductwork$0
Permits and other$666
What affects this estimate
- A load calculation is needed for real equipment sizing.
- Rebates, duct condition, and electrical work can meaningfully affect bids.
Assumptions You Can Adjust
- System sizing is simplified and should not replace a Manual J load calculation.
- Ductwork allowance is a planning placeholder, not a design quote.
- This calculator provides a general estimate for planning purposes only. Actual costs may vary based on your location, labor rates, material choices, permits, contractor pricing, and project complexity. This is not professional construction, financial, or legal advice.
What Can Make the Cost Higher
- Equipment size, efficiency, duct condition, electrical work, and refrigerant line work can change the estimate.
- Mini-split projects depend heavily on the number of zones.
- Local rebates and incentives vary by utility and location.
How to Reduce Cost
- Get a load calculation instead of replacing with the same size automatically.
- Seal or repair ducts when replacing equipment.
- Compare rebates, warranties, and financing terms.
When to Call a Professional
- HVAC sizing, refrigerant work, combustion safety, and electrical changes require qualified professionals.
- Ask contractors to explain efficiency ratings and warranty coverage.
Common Mistakes to Avoid
- Oversizing equipment.
- Ignoring duct leakage or airflow problems.
- Comparing bids with different efficiency ratings or warranty terms.
Example Calculation
An 1,800 sq ft home with a high-efficiency heat pump and existing ductwork can be compared against a premium system or ductwork replacement.
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Important Disclaimer
This calculator provides a general estimate for planning purposes only. Actual costs may vary based on your location, labor rates, material choices, permits, contractor pricing, and project complexity. This is not professional construction, financial, or legal advice.