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Cost guide • Updated August 2026

Heat Pump Replacement Cost

Replacing an existing heat pump can be simpler than converting a home from another heating system, but age, refrigerant changes, controls and indoor-equipment compatibility can turn a “swap” into a larger project.

Replacement cost planning range

A straightforward central replacement can start in the upper four figures and commonly reaches the low-to-mid five figures. Ductless multi-zone and premium cold-climate replacements can cost more.

Why a replacement is not always like-for-like

Modern systems may use different refrigerants, controls, communicating thermostats, indoor coils or air handlers. Reusing older components can compromise performance or may not be permitted by the manufacturer’s matched-system requirements.

When conversion economics matter

If the existing unit failed prematurely because of poor sizing, airflow or installation, simply installing the same nominal capacity may repeat the problem. Ask for load calculations, airflow verification and a written scope.

Frequently asked questions

How accurate are online heat pump cost estimates?

They are useful for budgeting but cannot account for a home’s measured heating load, duct condition, electrical service, installation access, equipment pairing and contractor pricing. Treat them as planning ranges, then compare written local quotes.

Should I choose a heat pump by square footage?

No. Square footage can help create a rough planning estimate, but equipment capacity should be selected from a recognized heating and cooling load calculation such as CSA F280.

Do rebates reduce the contractor quote upfront?

It depends on the programme. Some incentives are point-of-sale or contractor-administered, while others require applications or documentation. Confirm current programme rules before signing a contract.

Compare heat pump estimates for your home

Use our planning calculator first, then compare local installation quotes based on your home, heating system and location.

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