Instant heat pump price estimate
Pick your property size for an instant ballpark — the typical installed cost of an air source heat pump with the £7,500 government grant already taken off. It's an estimate; a free survey gives you the exact price.
Your instant estimate
Estimated system size: 7–8 kW. The grant applies to air-to-water heat pumps replacing a gas, oil or LPG system in England & Wales (subject to eligibility).
Estimate only — your exact price comes from a free survey. Finance is a representative example (7.9% APR over 10 years) — see our finance page for the full terms.
These figures are an illustration based on UK 2025-26 installed-cost data (Nesta, Energy Saving Trust and industry cost guides) banded by property size, with the £7,500 grant deducted. They are not a quote. The real price depends on your heat-loss, how many radiators need changing, the cylinder, and electrical and siting work — which is exactly why we survey first, for free.
Price to install, and cost to run
This page estimates what a heat pump costs to install (after the grant). To see what it would cost to run compared with your current boiler, try our running-cost calculator — it uses today's live energy prices.
Want a precise, address-specific figure straight away? As a Heat Geek partner you can also get an instant Heat Geek estimate, or simply book a free survey with us and we'll design the system properly for your home.
Get your exact price — free survey
We'll carry out a room-by-room heat-loss survey, design a Vaillant aroTHERM system for your home, and handle the £7,500 grant for you.