Andrew Lusher★★★★★
28 July 2026From the initial enquiry, to the communication throughout my journey, it was very much appreciated. Clear, concise and transparent.
Uk Alternative Energy Ltd.
Get Up To £9,000 Off Your Heat Pump
Check your postcode in 60 seconds. Get a fixed price. We handle the grant paperwork.
Enter your postcode
Installed right, rated highly
4.8★
Average Rating
Feefo verified
418+
Verified Reviews
Feefo Gold Trusted Service
£9,000
Maximum Grant
Three steps to your heat pump
Check your postcode
Get an instant estimate and see your grant amount in 60 seconds.
Get your price
We design the system around your home and confirm your total — grant already subtracted.
We handle everything
Installation by a certified Heat Geek engineer. We apply for the grant on your behalf — you never touch the paperwork.
How much is the grant worth?
The Boiler Upgrade Scheme gives UK homeowners a grant toward heat pump installation. The amount depends on what you're replacing.
Replacing gas
Up to £7,500 off your installation. The most common switch — and the grant covers a significant portion of the cost.
Replacing oil or LPG
Up to £9,000 off your installation. Oil and LPG households get the highest grant because the carbon savings are greatest.
Get a free, personalised estimate in seconds
What you'll actually pay
Typical system cost £12,100. The grant is subtracted before you pay — no upfront cost, no repayment.
Prices shown are average costs after BUS grant. Your actual price depends on your property and system design
REPLACING GAS
From £4,600
after £7,500 BUS grant
- Vaillant aroTHERM heat pump
- Full system design by Heat Geek
- Installation by certified engineer
- Performance guaranteed in writing
- Grant paperwork handled for you
REPLACING OIL OR LPG
From £3,100
after £9,000 BUS grant
- Vaillant aroTHERM heat pump
- Full system design by Heat Geek
- Installation by certified engineer
- Performance guaranteed in writing
- Grant paperwork handled for you
The Heat Geek Guarantee
Your performance, guaranteed in writing
We guarantee the performance of your system in writing, monitor it after installation, and fix it free if it underperforms. No one else in the UK does that.
Heat Geek Reviews
Every review is left by a verified Heat Geek customer following their installation, collected by Feefo, an independent company. Visit our reviews page for more.
Heat Geek Customer★★★★★
28 July 2026Very easy to work with. There are good videos on YouTube which are very helpful, we were impressed with the approach of Heat Geek they have taken an innovative approach with their system. All communications were quickly responded to and made the process very simple and easy.
Uk Alternative Energy Ltd.
John Ramm★★★★★
28 July 2026Great service. Attentive and considerate
Lgs Plumbing And Heating Ltd
Ashley Crocker★★★★★
26 July 2026Very good service, would definitely recommend.
Oakfield Plumbing And Heating Ltd
Heat Geek Customer★★★★★
26 July 2026Working with Heat Geek was a good experience. Their management of the project was carried out efficiently, and I feel reassured that they will provide any follow up (should it be required).
Safesure Plumbing And Heating Ltd
John Anthony★★★★★
25 July 2026As mentioned in the overall review the service has been excellent from start to finish. Taking the time to explain everything and the sticking to the schedule while working alongside a kitchen refit refit. I couldn’t have asked for a better team to do the install. Gary and Harry know there stuff, are very professional as well as being very personable individuals.
The Heat Pump Guy
Heat Geek Customer★★★★★
25 July 2026Very helpful
Heatswap Limited
Stephen Minter★★★★★
24 July 2026Communication was excellent and informative at every step of the process Their knowledge is extensive and we felt in very safe hands
Renew Heat
Heat Geek Customer★★★★★
24 July 2026Good response to queries but very heavy use of AI which sometimes was a bit annoying m
Puraheat Plumbing & Heating Engineers Ltd
Sarah Waddington★★★★★
23 July 2026They kept in touch throughout the process.
Ecospec Ltd
Matteo Cangialosi★★★★★
23 July 2026Excellent service, made clear and kept me well informed during every step of the way. No hidden fees and price respected from beginning to end
Bromley Energy
Morgan Jones★★★★★
22 July 2026Heat Geek were excellent - could have asked for better service.
I Heat And Plumb
FAQs
What is the Boiler Upgrade Scheme?
A UK government grant that gives homeowners up to £7,500 (gas) or £9,000 (oil/LPG) off the cost of a heat pump installation. It's not a loan — there's nothing to repay.
Do I need to apply for the grant myself?
No. Heat Geek applies on your behalf as part of the installation process. You never touch the paperwork.
What does the installation cost after the grant?
Typical systems start from around £4,600 (replacing gas) or £3,100 (replacing oil/LPG) after the grant is applied.
What is the Heat Geek Guarantee?
We guarantee your system's performance in writing, monitor it digitally after installation, and fix it free if it underperforms.
How much do heat pumps cost in the UK in 2026?
In 2026, a typical air source heat pump installation in the UK costs between £3,000 and £20,000 after the Boiler Upgrade Scheme grant, which can be up to £9,000 if you’re on oil or LPG. Final costs depend on property size, insulation levels, emitter upgrades and system design quality. At Heat Geek our average install price is £3,000 (after the grant). That's the same as swapping out your gas boiler.
Because every home is different, the only way to get accurate numbers is through a properly modelled design. Heat Geek’s paid Design Consultation provides a full heat loss calculation, system specification and guaranteed performance estimate tailored to your property.
What about Daikin, Mitsubishi, or Samsung?
Reputable manufacturers, but we specialise in Vaillant. Deep expertise in one platform means better designs, better installations, and better outcomes than trying to be generalists.
How quiet is the aroTHERM?
From 29 dB — roughly a whisper. Well within UK planning noise limits, even close to neighbouring properties.