New builds
Heat pumps for new builds
Many new builds already come with a heat pump — and the grant rules are different for new homes. Here's the honest picture.
Heat pumps for: Detached Semi-detached Terraced Cottage Victorian New build Bungalow Flat
New builds are a special case. Increasingly, new homes are built with a heat pump already fitted, because building regulations are moving that way. And the grant position is different: standard new builds generally aren't eligible for the Boiler Upgrade Scheme, because the grant exists to replace an existing fossil-fuel system.
What this means for you
- If your new build already has a heat pump: great — you have an efficient, low-carbon system from day one. This page's value is understanding running costs and maintenance, covered in our cost guide and basics guide.
- If your new build has a gas boiler and you're considering switching: check the grant position carefully, as new builds are treated differently. More on new-build grants.
- Self-builds can differ from developer new builds — worth confirming directly with an MCS installer.
Typical size and cost
| Typical system size | Before grant | After £7,500 grant |
|---|---|---|
| 4–9 kW | £9,000–£16,500 | see note* |
| *Standard new builds generally aren't eligible for the £7,500 grant, so the post-grant column doesn't apply. See new-build grants. | ||
Get a tailored figure with the cost calculator, or read the full cost guide.
Common questions
Do new builds come with heat pumps?
Increasingly yes. Building regulations are steadily moving new homes toward low-carbon heating, so many new builds are fitted with a heat pump as standard.
Are new builds eligible for the heat pump grant?
Generally no. The Boiler Upgrade Scheme replaces existing fossil-fuel heating, and new builds are expected to have low-carbon heating already. See our new-build grants page.
My new build has a gas boiler — what are my options?
You can still consider a heat pump, but the grant position for new builds is different, so confirm eligibility directly. Self-builds may differ from developer homes.
Are heat pumps cheap to run in a new build?
Often yes — new builds tend to be well insulated, which means low heat loss, a smaller system and lower running costs.
See the cost for your home
The calculator sizes a system for your property type and applies the grant — an instant estimate, no contact details needed.