How Much Does an Air Source Heat Pump Cost in 2026?
Quick Answer
Most domestic air source heat pump installations cost between £9,500 and £16,000 before any government grant, although every property is different. The final cost depends on the size of your home, heat loss, radiator requirements, hot water cylinder, electrical work and the complexity of the installation.
If you’re eligible for the Boiler Upgrade Scheme, the government grant can significantly reduce the amount you pay.
Find Out What an Air Source Heat Pump Would Cost for Your Home
Free 20-minute phone or video consultation
Speak directly to one of our technical specialists. No obligation, no sales pressure – just honest advice tailored to your home.
★★★★★ Rated 4.8 on Google
MCS Certified
Trusted across Northumberland & the North East
Government Grant Advice
Professional System Design
Contents
💷 Costs
Average Heat Pump Costs
Running Costs
Government Grants
Frequently Asked Questions
🏡 Installation
Typical Installation Costs
What Affects Price?
Example Installations
Related Guides
Average Air Source Heat Pump Installation Costs in 2026
These prices are representative of professionally designed MCS-certified installations. Every property is different, so your final quotation will depend on your home’s heat loss, existing heating system, radiator requirements, hot water demand and the complexity of the installation.
| Property Type | Typical Installed Cost | Grant Available | Estimated Customer Cost* |
|---|---|---|---|
| 2 Bedroom Home | £9,500 – £11,000 | ✔ | From £2,500 |
| 3 Bedroom Home | £10,500 – £13,000 | ✔ | From £3,500 |
| 4 Bedroom Home | £12,500 – £15,500 | ✔ | From £5,500 |
| Larger Properties | £15,000+ | ✔ | Property dependant |
💡 Good to Know
The government grant is deducted from the installation cost rather than being paid to the homeowner.
Eligible households therefore pay the reduced balance shown on their quotation.
Why Do Heat Pump Installation Costs Vary?
Although average installation costs provide a useful guide, no two homes are exactly the same. A professionally designed heat pump system is tailored to the property rather than chosen from a standard price list. Below are the main factors that influence the final installation cost.
🏠 Property Size
Larger homes generally require larger heat pumps, more pipework and additional labour, all of which increase installation costs.
🌡 Heat Loss
The better insulated your home, the lower the heating demand. Properties with high heat loss may require larger heat pumps or additional insulation improvements.
🔥 Existing Radiators
Many homes can retain most of their existing radiators, while others benefit from selective upgrades to improve efficiency at lower flow temperatures.
🚿 Hot Water Cylinder
Most air source heat pump installations include a purpose-designed hot water cylinder to maximise performance and hot water availability.
⚡ Electrical Upgrades
Some installations require additional electrical work, including dedicated circuits, isolators or consumer unit upgrades.
🛠 Installation Complexity
Long pipe runs, difficult access, listed buildings or extensive groundworks can all influence installation time and overall cost.
What Should a Professional Heat Pump Installation Include?
These prices are representative of professionally designed MCS-certified installations. Every property is different, so your final quotation will depend on your home’s heat loss, existing heating system, radiator requirements, hot water demand and the complexity of the installation.
| What’s Included in a Professional Heat Pump Installation | Included |
|---|---|
| Room-by-room heat loss calculation | ✔ |
| Heat pump sizing | ✔ |
| Room-by-room emitter assessment | ✔ |
| Electrical requirements reviewed | ✔ |
| System commissioning & optimisation | ✔ |
| MCS certification paperwork | ✔ |
| Homeowner handover & system guidance | ✔ |
Why Every Quote Is Different
Every home has different heating requirements, insulation levels and existing heating systems. That’s why two properties that look similar from the outside can require different heat pump sizes, radiator upgrades or installation work. The prices shown above are intended as a guide only. The most accurate way to understand your installation cost is through a professional technical consultation and system design.
What Happens During an Enerus Consultation?
✓ We discuss your current heating system.
✓ We explain how the Boiler Upgrade Scheme applies.
✓ We assess whether your existing radiators may be suitable.
✓ We answer your technical questions.
✓ We explain likely installation costs.
✓ There’s no obligation to proceed.
Questions to Ask Any Installer
✓ Will you carry out a room-by-room heat loss calculation?
✓ Will you check whether my existing radiators are suitable?
✓ Is all electrical work included within the quotation?
✓ Will you provide MCS certification?
✓ Will you commission and optimise the system?
✓ Will you explain how to operate the controls?
How Much Does an Air Source Heat Pump Cost After the Boiler Upgrade Scheme?
💷 How the Boiler Upgrade Scheme Works
The Boiler Upgrade Scheme (BUS) provides an upfront government grant towards the installation of an eligible air source heat pump.
Unlike many grants, you don’t receive the money yourself. Instead, the grant is claimed by your MCS-certified installer and deducted directly from your final installation invoice. This means you simply pay the remaining balance.
✅ Who Is Eligible?
Most homeowners in England and Wales replacing a fossil fuel heating system may be eligible for the Boiler Upgrade Scheme, provided:
✓ You own the property
✓ The installation is completed by an MCS-certified installer
✓ Your home meets the scheme requirements
✓ The existing heating system is being replaced with an eligible heat pump
Our team can confirm your eligibility during your free consultation.
🧾 Is the Grant Deducted From the Invoice?
Yes.
The government grant is applied before you pay your final balance.
| Installation Price | Government Grant | Customer Pays |
|---|---|---|
| £11,500 | -£7,500 | £4,000 |
| £13,000 | -£7,500 | £5,500 |
| £15,000 | -£7,500 | £7,500 |
You never need to claim the grant yourself – we manage the entire process.
🏡 Typical Customer Contributions
Although every home is different, many homeowners pay approximately:
| Property | Typical Customer Cost* |
|---|---|
| 2 Bedroom | £2,500 |
| 3 Bedroom | £3,500 |
| 4 Bedroom | £5,500 |
| Larger Homes | Property dependant |
❓ Common Misconceptions
“The heat pump is completely free.”
Not usually.
The grant significantly reduces the installation cost, but most homes still require a customer contribution.
“I receive the grant money.”
No.
The grant is paid directly to your installer and deducted from your invoice.
“Every installer charges the same.”
No.
Installation prices vary because every property requires a bespoke design. Heat loss calculations, radiator upgrades, electrical work and system design all influence the final quotation.
“The cheapest quote is always the best value.”
Not necessarily.
A professionally designed system includes room-by-room heat loss calculations, correct heat pump sizing, commissioning and optimisation—all of which affect long-term performance and running costs.
“Will my radiators need replacing?”
Not always.
Many homes can retain some or even most of their existing radiators. During your heat loss survey we’ll assess each room and only recommend upgrades where they’re genuinely required for efficient low-temperature heating.