Free Calculator · Updated May 2026

HVAC Replacement Cost Calculator

Estimate the cost to replace a home HVAC system. Pick the system size that matches your home, then adjust type and efficiency for an instant range.

Estimated HVAC replacement cost

$6,000 – $12,000

An estimate for planning only — not a quote. Pricing varies by brand, region, and install complexity; get bids from local HVAC pros.

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FAQ

How do I know what system size I need?

As a rough guide, about one ton of cooling covers 500–600 square feet, so a 2,000 sq ft home often needs a 3–4 ton system. A contractor performs a load calculation (Manual J) for the exact size — bigger isn't better.

Why is there such a wide range?

Equipment tier, efficiency rating (SEER), whether you replace the furnace too, ductwork condition, and local labor all move the price. The estimate reflects that spread; a site visit narrows it.

For pros

HVAC shop quoting installs? JobStack drafts itemized estimates, books the job, and chases the invoice for you.

See JobStack for HVAC

Estimates are for planning only and are not a quote. Installed costs by tonnage from PickHVAC, Angi, HomeAdvisor, and Modernize (2025–2026). See the full HVAC replacement cost guide, or browse all cost calculators.