HVAC Replacement Cost Calculator

Estimate a complete-system replacement — cooling plus heating — from your home size, system type, and efficiency tier. For full context, read the HVAC replacement cost guide.

Home size

System type

Efficiency tier

Local labor costs

Ducts likely need repairs/modification

Low

$6,600

Typical

$10,600

High

$14,500

Reuses existing ductwork in serviceable condition; full duct replacement is a separate project. Editorial estimate, not a quote. Model hvac-cost-v1.0.

Assumptions behind this model

Complete-system base ranges reflect installed equipment + labor + code items + permit midpoints as of August 2026.
Efficiency tiers: standard ≈ code-minimum single-stage (−12%), premium ≈ variable-speed top-tier (+22%).
Home-size factors approximate tonnage steps; a Manual J load calculation governs real sizing.
High-cost metros +30% on the whole project; below-average areas −15%.
Duct repairs add $500–$2,500 when selected; full duct replacement ($3,500–$12,000) is excluded.

Model hvac-cost-v1.0 · Reviewed 2026-08-24 · See our methodology.