What Does a Heat Pump Actually Cost in 2026?
A fully installed air source heat pump in the UK costs £10,000–£14,000 in 2026, including the unit, labour, pipework, and commissioning (Energy Saving Trust). After the £7,500 Boiler Upgrade Scheme (BUS) Grant — subject to eligibility — your out-of-pocket cost falls to £2,500–£6,500, putting a heat pump in the same ballpark as a premium gas boiler replacement.
The good news is that heat pump prices have come down considerably over the past few years, and with the government’s Boiler Upgrade Scheme (BUS) Grant offering £7,500 towards installation, the numbers are more attractive than ever.
Breakdown of Heat Pump Costs
Understanding where the money goes helps you make sense of quotes and compare like for like.
The heat pump unit: £4,000–£7,000
The unit itself accounts for roughly half the total cost. Prices vary depending on the brand, output capacity, and efficiency rating. A typical 8–12 kW air source heat pump suitable for an average three-bedroom semi-detached house sits in the middle of this range.
Installation and labour: £3,000–£5,000
Installation is a skilled job that involves mounting the outdoor unit, connecting refrigerant lines, integrating with your existing heating distribution system, and commissioning the controls. An experienced installer working under MCS certification like Electromatic M&E Ltd will typically complete the work in two to three days.
Additional works: £500–£3,000
Some properties need extra work before a heat pump can perform at its best. This might include:
- Upgrading a few radiators to larger, low-temperature models
- Installing a hot water cylinder (if you currently have a combi boiler)
- Minor pipework modifications
- Upgrading the electrical supply to accommodate the heat pump
Not every home needs all of these, which is why the range is wide. A proper home survey will clarify exactly what your property requires.
The BUS Grant: Bringing Costs Down to Earth
The Boiler Upgrade Scheme provides a £7,500 voucher for air source heat pump installations in England and Wales, subject to eligibility criteria set by Ofgem. The grant is applied directly at the point of installation, meaning you never have to pay the full price and wait for a rebate.
To qualify, your property must have an EPC (Energy Performance Certificate), you must own the property, and the installation must be carried out by an MCS-certified company. At Electromatic M&E Ltd, we handle the entire BUS Grant application on your behalf — so there is no paperwork headache for you.
Related reading: BUS Grant 2026: How to Get £7,500 for Your Heat Pump
Running Costs: Heat Pump vs Gas Boiler
Installation cost is only half the picture. What really matters over the long term is how much your energy bills change.
How heat pumps save money on running costs
A modern air source heat pump has a Coefficient of Performance (COP) of between 3.0 and 4.0. That means for every 1 kWh of electricity it consumes, it produces 3 to 4 kWh of heat. A gas boiler, by contrast, converts roughly 0.92 kWh of heat from every 1 kWh of gas (at 92% efficiency).
Using typical 2026 energy prices (Ofgem, April 2026 price cap):
| Fuel | Unit price | Efficiency | Cost per kWh of heat |
|---|---|---|---|
| Gas | 7.4p/kWh | 92% | 8.0p |
| Electricity (heat pump, COP 3.5) | 24.5p/kWh | 350% | 7.0p |
For an average UK household using around 12,000 kWh of heat per year, that works out to approximately:
- Gas boiler: £978 per year
- Heat pump: £840 per year
That is a typical saving of roughly £138 per year on heating alone (Energy Saving Trust). When you add in the elimination of an annual gas safety certificate and the longer lifespan of a heat pump (20–25 years vs 12–15 for a gas boiler), the financial case strengthens further.
Related reading: Air Source Heat Pump vs Gas Boiler: Running Costs Compared
Factors That Affect Your Heat Pump Cost
No two installations are the same. Here are the main variables that push the price up or down:
Property size and heat demand
A larger home with higher heat loss requires a bigger heat pump. A one-bedroom flat might need a 5 kW unit, while a four-bedroom detached house could require 12 kW or more.
Insulation levels
A well-insulated home needs a smaller, cheaper heat pump and costs less to run. If your property has poor insulation, it is worth addressing that before or alongside a heat pump installation.
Existing heating system
Properties with underfloor heating are ideally suited to heat pumps and may need minimal modifications. Homes with small, older radiators may need a few upgraded to work efficiently at lower flow temperatures.
Hot water requirements
If you currently have a combi boiler and no hot water cylinder, you will need a cylinder installed — typically adding £500–£1,000 to the project.
Location and access
Installation costs can vary by region. At Electromatic M&E Ltd, based in Sunbury-on-Thames, we serve customers across Greater London, Surrey, and Middlesex, keeping travel costs reasonable and response times quick.
ROI and Payback Period
Let us work through a realistic example:
- Total installed cost: £12,000
- BUS Grant (subject to eligibility): -£7,500
- Your cost: £4,500
- Annual running cost saving vs gas: £138
- Avoided gas boiler replacement (every 12–15 years): £3,000–£4,000
- Reduced maintenance costs: £100/year
Taking the running cost savings and reduced maintenance together, you are saving approximately £238 per year. That gives a simple payback period on running costs alone.
However, the real payback comes when you factor in the avoided cost of replacing a gas boiler. If your current boiler is nearing end of life, the net additional cost of choosing a heat pump over a new boiler (after the BUS Grant) is just £1,000–£2,500 — which can pay back in as little as 4 to 10 years.
And if you combine your heat pump with solar panels, you can generate free electricity to run it during the day, shortening that payback period considerably.
Related reading: Solar Panels and Heat Pumps: The Perfect Combination
Is a Heat Pump Worth It in 2026?
For most UK homeowners, the answer is yes — especially with the BUS Grant reducing upfront costs so dramatically. You get lower carbon emissions, reduced energy bills, a longer-lasting heating system, and protection against future gas price rises.
The key is getting the right system designed and installed correctly for your specific property. A poorly sized or badly installed heat pump will underperform and cost more to run. That is why choosing an installer operating under MCS certification with real experience matters.
Find out if your home qualifies by reading our guide on whether your home is suitable for a heat pump.
How Electromatic Can Help
Electromatic M&E Ltd offers free home surveys across London and Surrey (TW, KT, SW postcodes). We handle BUS Grant applications, install ASHP and solar PV from a single contractor, and deliver within 2–4 weeks of survey confirmation. All work is carried out under MCS certification via our accredited umbrella partner.
Call us: 07718 059 284 | Email: admin@electromatic.uk
Frequently Asked Questions
How much does a heat pump cost in the UK in 2026?
A fully installed air source heat pump costs £10,000–£14,000 in 2026 (Energy Saving Trust). After the £7,500 BUS Grant (subject to eligibility), most homeowners pay £2,500–£6,500 out of pocket. The exact cost depends on your property size, insulation levels, and whether any additional work such as radiator upgrades or a new hot water cylinder is needed.
Does the BUS Grant cover the full cost of a heat pump?
No. The BUS Grant provides £7,500 towards the cost of an air source heat pump installation, subject to eligibility criteria set by Ofgem. For a typical installation costing £10,000–£14,000, you would still contribute £2,500–£6,500 of your own funds. The grant is applied as a discount at the point of installation — you never pay the full amount and wait for a rebate.
Are heat pumps cheaper to run than gas boilers?
At current 2026 energy prices (Ofgem: electricity 24.5p/kWh, gas 7.4p/kWh), a heat pump with a COP of 3.5 costs approximately 7.0p per kWh of useful heat, compared to 8.0p for a gas boiler. This represents a typical saving of £100–£300 per year on heating, based on Energy Saving Trust data. Savings increase significantly with a smart electricity tariff or solar panels.
Do I need planning permission for a heat pump?
Most air source heat pumps fall under permitted development rights, meaning no planning permission is needed. There are exceptions for listed buildings, conservation areas, and units installed on the front elevation of a property. Read our full guide: Do I Need Planning Permission for a Heat Pump?
How long does heat pump installation take?
A standard air source heat pump installation takes two to three days. This includes mounting the outdoor unit, installing the indoor controls and hot water cylinder, connecting to the heating system, and commissioning everything. Electromatic typically delivers within 2–4 weeks of the initial survey.
The information in this article is for general guidance only and does not constitute financial, legal, or technical advice. Energy savings estimates are based on typical UK household data from the Energy Saving Trust and Ofgem (April 2026 price cap). Actual savings depend on your property type, insulation levels, energy usage patterns, and electricity tariff. The Boiler Upgrade Scheme (BUS) grant of £7,500 is subject to eligibility criteria set by Ofgem — not all properties qualify. Electromatic M&E Ltd operates under MCS certification via an accredited umbrella partner. All installations comply with Building Regulations Part L and MCS standards. E&OE.
Written by Electromatic M&E Ltd — ASHP & Solar installer, London & Surrey (electromatic.uk)
Last updated: April 2026 | Electromatic M&E Ltd, Company No. 13837345
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