Enter a realistic size
Use the measurement or task count that most closely matches the work contractors will price.
Home systems cost planner
HVAC Replacement Cost Calculator
Estimate central heating and cooling equipment replacement. Adjust the project, market, finish, and complexity to build a useful early budget.
Planning dataUpdated July 2026US national ranges
01
Describe the project
Use approximate measurements for early planning. You can print a revised estimate later.
What this estimate assumes
- Duct replacement and electrical service upgrades may be separate.
- Final sizing should use a professional load calculation.
Planning guide
Understand the range before you request quotes.
Set an early central HVAC replacement budget before obtaining equipment sizing, efficiency, and installation proposals.
Example project1,800 home sq ftDefault calculator starting point
Base unit range$4.2–$9.5Before market, finish, complexity, and contingency
Example planning range$8,316–$18,810US average, standard finish, typical complexity, 10% contingency
How to use the calculator
Turn a rough idea into a quote-ready starting point.
This is a planning tool, not a contractor bid. Use the range to define scope, compare like-for-like proposals, and identify the questions that could materially change the final price.
Adjust the project conditions
Choose the local cost level, finish, complexity, and contingency that reflect your actual plan.
Compare complete scopes
Enter contractor quotes and check whether each proposal includes the same materials, labor, permits, and cleanup.
What the planning range includes
- Typical central heating and cooling equipment
- Standard replacement installation labor
- Basic controls and commissioning
- Permit allowance and planning contingency
What can move the price
- Home size, climate, and load requirements
- Efficiency rating and equipment type
- Duct condition and accessibility
- Electrical, drain, and ventilation changes
Items that often sit outside the first estimate
- Whole-duct replacement
- Electrical service upgrades
- Asbestos or difficult equipment removal
Common questions
HVAC Replacement cost calculator FAQ
How accurate is this estimate?
It is an early planning range based on project size and broad US cost factors. Actual quotes depend on local labor, exact specifications, access, existing conditions, permits, and contractor availability.
Why is the range wide?
The low and high values intentionally cover meaningful differences in finish quality, complexity, market pricing, and hidden scope. Narrow it by defining materials and included work before requesting bids.
How should I compare contractor quotes?
Compare written scope, quantities, product allowances, demolition, cleanup, permits, schedule, warranty, payment terms, and change-order rules—not only the total price.
Continue planning
Related home-project calculators
Learn before requesting quotes
Cost guides for hvac replacement
HVAC Replacement Cost Guide: Budget, Labor and Materials
Understand typical hvac replacement cost drivers, included work, hidden expenses and how to build a realistic early budget.
HVAC Replacement Cost per Square Foot
Understand why HVAC replacement cost per square foot varies with load, climate, efficiency, ducts, electrical work and equipment type.
Repair vs Replace an HVAC System
Compare HVAC repair and replacement using system age, repair cost, efficiency, refrigerant, comfort and reliability.
Hidden HVAC Replacement Costs
Budget for duct repair, electrical upgrades, permits, condensate work, equipment access and other HVAC replacement extras.