How a heat pump actually works
An air source heat pump doesn't burn anything. It extracts heat from outside air — even in freezing weather — and moves it into your home. For every 1 kWh of electricity it uses, it delivers 2.5–4 kWh of heat. A gas boiler tops out at around 90% efficiency; a heat pump runs at 250–400%. That efficiency gap is where the savings come from, especially for homes currently on oil, LPG or electric heating.
The grant does the heavy lifting
The UK Government's Boiler Upgrade Scheme knocks £7,500 off an air source heat pump installation — and £9,000 if your home is currently heated by oil or LPG. The grant doesn't need repaying, and as your MCS certified installer we apply for it on your behalf: you only ever see the after-grant price. Combined with asolar and battery system powering it with your own generation, running costs fall further still.
Sized from a real heat loss survey
The single biggest factor in whether a heat pump delights or disappoints is sizing. We carry out a full room-by-room heat loss calculation before quoting — insulation, glazing, radiator sizes, hot water demand — and design the system around the results. No guesswork, no "one size fits all", and honest advice if your home needs insulation work first.
Hardware we install
We fit heat pumps from Vaillant, Worcester Bosch andIdeal Heating — quiet, proven units with strong UK support networks and long warranties. Installation typically takes 2–3 days including the hot water cylinder, and every system is commissioned and MCS certified for the grant.
See what your home qualifies for
Free heat loss survey and a fixed after-grant price. No pushy salespeople — just engineers.
Get a free quote todayHeat pump FAQs
How much is the heat pump grant worth?
The Boiler Upgrade Scheme (BUS) gives £7,500 towards an air source heat pump — rising to £9,000 for homes currently heated by oil or LPG. It doesn't need repaying, and we apply on your behalf.
Do heat pumps work in cold weather?
Yes — modern units extract heat from outside air at temperatures as low as -20°C, and heat pumps are standard in Norway and Sweden. Efficiency drops as it gets colder, which is why correct sizing from a heat loss survey matters.
Will a heat pump work with my radiators?
Often, yes. Heat pumps run at lower flow temperatures than boilers, so some homes need a few radiators upsized. Our heat loss survey identifies exactly which, before you commit to anything.
How much does a heat pump cost to run?
A heat pump delivers 2.5–4 units of heat per unit of electricity (250–400% efficiency versus ~90% for a gas boiler). Running costs depend on your tariff — on heat pump tariffs, most well-installed systems cost the same as or less than gas, and far less than oil or LPG.
How long does installation take?
A typical air source heat pump installation takes 2–3 days, including the hot water cylinder and any radiator changes identified in the survey.
Related guides: The complete ASHP guide for UK homeowners