Installed cost
HVAC replacement cost calculator
Create a broad installed-cost range from home size, system type, efficiency, labor market, and duct scope.
Best before collecting bids
Open calculatorFree planning tools
HVAC calculators built for the quote—not the click
Start with a wide, transparent range. Then use contractor load calculations, written scope, and local bids to replace assumptions with real project numbers.
Choose your question
Three tools, three different decisions
Decision support
Repair or replace calculator
Weigh system age, repair price, repeat failures, warranty, comfort, and energy-use signals without relying on one slogan.
Best after receiving a diagnosis
Open calculatorDuctless planning
Mini-split cost calculator
Estimate a single- or multi-zone project using head style, access, equipment tier, and electrical scope.
Best while defining project scope
Open calculatorUse the range well
A calculator should sharpen your questions
- Build the first planning band. Use honest inputs and keep the full low-to-high range in your budget.
- Collect comparable scopes. Ask two or three licensed contractors to quote the same equipment functions, duct work, controls, permits, and warranty.
- Replace assumptions. Update your decision with a Manual J load calculation, electrical review, incentives you actually qualify for, and written financing terms.