Design
Manual J loads, selected capacity, indoor/outdoor match, and duct findings.
HVAC replacement cost calculator
Compare the major variables that move an installed HVAC price. The calculator intentionally returns a range because access, permits, sizing, electrical work, and contractor scope cannot be priced from a browser.
Planning calculator
Adjust the five project variables below. The result is a broad installed-cost planning band—not a contractor quote.
Range: 800–4,000 sq. ft. of conditioned space.
All-electric heating and cooling with standard air handler.
Duct work can add roughly $1,500–$12,000 depending on access and scope.
Read the result
The starting ranges represent common equipment-and-installation projects, then change with broad size, efficiency, market, and duct assumptions. They are not tied to a brand, contractor, financing program, or live local price database.
A bid can sit outside the range for difficult access, cranes, structural work, service upgrades, zoning controls, asbestos remediation, unusual permits, or a major redesign.
Next action
Manual J loads, selected capacity, indoor/outdoor match, and duct findings.
Permits, electrical work, drains, controls, disposal, testing, and exclusions.
Equipment, labor, and workmanship warranties plus total financing cost.
Read the full HVAC replacement cost guide or inspect the formula, factors, and worked example.