Skip to content
HomeCostNest
US calculatorUses sq ft

HVAC Replacement Cost Calculator

Plan conventional HVAC replacement costs by installed system and selected project needs.

Market-specific data

Low, typical & high range

Assumptions shown below

Project measure

Project details

Refine the scope

Project options

Your planning estimate

US estimate · 2,000 sq ft

Typical project allowance

$8,000

Low$5,000

High$11,000

This range updates from the project details you enter. It is a planning estimate, not a contractor quote.

Typical cost breakdown

Base installed system
$8,000

Review the methodology below for included work, exclusions, assumptions, and source information.

Understand the range

Methodology, assumptions & sources

How this estimate is calculated

Installed system type establishes the base range. Equipment tier, ductwork, and thermostat are separate allowances; home size is a context cross-check only.

This is a planning estimate, not a contractor quote. Actual quotes vary by location, specification, site conditions, labour, and project requirements.

Included assumptions & exclusions
  • Final HVAC sizing should be based on a professional load calculation.
  • Equipment tier adjustments are HomeCostNest planning assumptions, not national averages.
  • Permits are not included and vary by jurisdiction.
Data sources & review information
  • Source reference

    HomeGuide 2026 HVAC

  • Source reference

    HomeGuide 2026 Ductwork

  • Source reference

    Angi 2026 HVAC and AC

  • Source reference

    ENERGY STAR

Source references provide benchmark context. HomeCostNest applies its own calculator structure, ranges, assumptions, and allowances; listing a source does not imply endorsement of HomeCostNest or verification of every calculated price.

No source URL is stored in this calculator's current data record; no link has been inferred or fabricated.

Review date:
September 19, 2026
Dataset:
1.0
Data record status:
Reviewed internally

Helpful guides

HVAC Replacement Cost Guide: AC, Furnace, Ductwork and System Costs

Plan central AC, heating equipment, complete systems, and ductwork with market-specific cost methodology.

Read planning guide

Heat Pump vs HVAC Replacement Cost: Comparing the Project Scope

Understand which market-specific calculator fits a heat-pump project or conventional HVAC replacement.

Read planning guide

Heat Pump Installation Cost Guide: What Affects the Price?

Understand the complete HomeCostNest heat pump cost-planning model.

Read planning guide

Home Addition Cost Guide: Cost per Square Foot, Rooms and Project Scope

Equal-size additions can have very different costs when rooms, services, structural work, site conditions, and tie-ins change.

Read planning guide

Build Up vs Build Out: Second-Story and Ground-Floor Addition Cost Comparison

Building up and building out move cost between existing-structure integration, new foundations, roof work, circulation, site use, and disruption.

Read planning guide

Furnace Replacement Cost Guide: Equipment, Efficiency and Installation

The shared calculator route contains two different projects: US forced-air furnace replacement and UK boiler replacement, each with separate cost drivers.

Read planning guide

Repair or Replace Your Furnace? Age, Efficiency, Warning Signs and Costs

Age, comfort problems, and unusual operation can trigger evaluation, but they do not remotely diagnose a furnace or boiler or dictate replacement.

Read planning guide

Central AC Replacement Cost Guide: System Size, Efficiency and Installation

A cooling-only replacement budget should account for matched equipment, distribution, controls, utilities, access, removal, approvals, and commissioning—not just the outdoor unit.

Read planning guide

Repair vs Replace an Air Conditioner: When Replacement Makes Financial Sense

Age, weak cooling, noise, and higher bills can justify evaluation, but none remotely diagnoses an air conditioner or dictates replacement.

Read planning guide

Mini-Split Installation Cost Guide: Zones, Equipment and Labor

Mini-split cost grows through a combination of indoor zones, outdoor equipment, capacity design, routing, electrical work, access, controls, and commissioning.

Read planning guide

Mini-Split vs Central Air Cost: Installation, Efficiency and Best Uses

The better cooling architecture depends on the building, existing distribution, room loads, zoning needs, project scope, and household use—not a universal ranking.

Read planning guide