Heat Pumps
Are Heat Pumps Worth It in the UK in 2026?
The honest answer — including real running costs, the £7,500 BUS grant, and who should switch now.
Heat pumps are everywhere in the news right now — but are they actually worth it for UK homeowners? The honest answer is: it depends on what you’re replacing. Here’s everything you need to know before making a decision.
Quick summary: Heat pumps are a clear win if you’re on oil, LPG or electric heating. For gas homes the financial case is less clear right now — but the £7,500 BUS grant and 2035 deadline make switching increasingly compelling.
What Is a Heat Pump?
A heat pump is a heating system that moves heat from the outside air (or ground) into your home rather than burning fuel to generate it. Because it moves heat rather than creates it, a good heat pump delivers 3 units of heat for every 1 unit of electricity it uses — a ratio known as the Coefficient of Performance (COP).
The two main types for UK homes are:
Air Source (ASHP)
Extracts heat from outdoor air. Most popular, easiest to install. Typical real-world COP of 3.2 in UK conditions.
Ground Source (GSHP)
Extracts heat from the ground via buried pipes. More efficient (COP ~4.0) but higher install cost and requires garden space.
The Honest Answer: It Depends What You’re Replacing
This is where most heat pump articles let you down — they give a one-size-fits-all answer. The reality is more nuanced.
Replacing a gas boiler
Gas is cheap in the UK at around 6p/kWh. Even with a COP of 3.2, a heat pump using electricity at 27p/kWh costs roughly the same to run as a gas boiler in most homes. You won’t save much on bills in the short term.
But that’s not the whole story. The real reasons to switch from gas in 2026 are:
- →The 2035 deadline — new gas boiler installations are expected to be banned from 2035. Getting ahead of the curve means choosing on your terms, not being forced into it.
- →The £7,500 BUS grant — the Boiler Upgrade Scheme gives you £7,500 off the cost of an air source heat pump, making install costs comparable to a new gas boiler. From 21 July 2026 this rises to £9,000 for oil and LPG homes.
- →Add solar and the maths change completely — a 4kWp solar system combined with a heat pump can cut running costs significantly as you’re heating your home with free daytime electricity.
- →Carbon footprint — heat pumps produce around 3 times less CO2 than gas boilers even on today’s UK electricity grid, and that gap widens every year.
Replacing an oil or LPG boiler
This is where heat pumps make the most financial sense right now. Oil costs around 8p/kWh and LPG around 12p/kWh — the heat pump’s efficiency advantage translates directly into real bill savings, often £300–£800 per year depending on your current usage.
Combined with the BUS grant rising to £9,000 for oil and LPG homes from July 2026, the financial case is compelling.
Replacing electric storage heaters
The clearest win of all. Storage heaters have a COP of 1.0 — one unit of electricity in, one unit of heat out. A heat pump with a COP of 3.2 gives you more than three times the heat for the same electricity spend. Annual savings of £500–£1,500 are realistic for homes currently on electric heating.
What Does a Heat Pump Cost in 2026?
| Type | Before Grant | BUS Grant | Net Cost |
|---|---|---|---|
| Air source (ASHP) | £8,000–£15,000 | £7,500 | £500–£7,500 |
| Ground source (GSHP) | £15,000–£25,000 | £7,500 | £7,500–£17,500 |
The grant is applied by your installer and deducted from your quote — you never see the money, it just reduces what you pay. The BUS scheme runs until April 2028.
Does My Home Need to Be Well Insulated First?
Yes, ideally. Heat pumps work best in well-insulated homes because they deliver heat at lower temperatures over longer periods, rather than the short intense bursts of a gas boiler.
That said, many installers now successfully fit heat pumps in homes with average insulation by slightly oversizing the system. A good MCS-certified installer will carry out a full heat loss calculation before recommending a system size.
If your home needs insulation work, doing that first — or at the same time — will improve your heat pump’s efficiency and reduce running costs. Read our guide to home insulation →
Are Heat Pumps Noisy?
Modern air source heat pumps are quiet. Most run at around 40–50 decibels at one metre — roughly the volume of a quiet conversation or a refrigerator hum. Permitted development rules mean you don’t need planning permission in most cases, provided the unit is at least one metre from the property boundary.
So Are Heat Pumps Worth It? The Verdict
✅ Worth it now if you’re on…
- →Oil or LPG heating — clear financial win
- →Electric storage heaters — save 3x on heating
- →Gas + solar panels — combination is compelling
- →Gas and want to future-proof before 2035
⚠️ Think carefully if you’re on…
- →Gas with a recently serviced boiler and no solar plans
- →Poor insulation with no plans to improve it
The honest truth is that heat pumps are not quite at the tipping point for gas homes on bills alone in 2026 — but with the BUS grant, rising gas prices and the 2035 deadline approaching, waiting gets more expensive every year.
See the numbers for your own home
Our free calculator gives you an honest comparison of heat pump vs your current heating — including the BUS grant and a solar combination scenario.
Ready to get quotes?
Getting quotes costs nothing and there’s no obligation. Our network of MCS-certified installers covers the whole of the UK.
Last updated: June 2026. BUS grant figures correct as of publication. Grant amounts subject to change — always verify current figures at gov.uk before making a decision. Running cost estimates based on Nesta heat pump field trial COP data, Ofgem Q2 2026 price cap rates.