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.
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Meet the best independent installers in South London
From Croydon to Sutton, our Heat Geek Installers have South London covered. From Edwardian semis in Bromley to post-war housing in Croydon, we tailor systems to suit South London homes. Our team works with councils across South London to streamline planning. Our installers cover Bexley, Richmond, Kingston Upon Thames, Wandsworth, Southwark, Lambeth, Croydon, Bromley, Sutton, Lewisham, Greenwich, and Merton.
Michael at Walsh & Son Ltd
Michael is the director of Walsh & Son Ltd, a family-run company with deep experience in domestic and commercial heating. A recognised industry voice and founder of the #killakilowatt campaign, he champions best practice, environmental impact, and competence over certification.
Niman at NRG Heating & Plumbing
Niman runs NRG Heating and Plumbing Solutions, an independent company focused on energy-efficient systems. A Heat Geek Elite member and fully certified engineer, Niman designs systems around both boilers and heat pumps to maximise performance and reduce energy waste.
Richard at Lotus Energy
Richard is the founder of Lotus Energy, based in Guildford. With over 20 years in heating, he specialises in efficient system design using gas, heat pumps, and smart controls. A Heat Geek trained installer, Richard is dedicated to renewables and runs his business using fully electric vehicles.
Michael at Bromley Energy
Michael is a Heat Geek trained engineer at Thames Gas Heating Electrical Ltd. NVQ Level 3 qualified and certified in gas, F-Gas, and unvented systems, Michael combines technical expertise with a passion for comfort, energy efficiency, and creating safer, more sustainable living environments for clients.
Thomas at Asset Plumbing & Heating Ltd
Thomas runs Asset Plumbing and Heating, holding Level 3 Gas Engineering qualifications alongside expertise in unvented water systems and heat pump installation. With over 12 years in the industry, he prioritises high-efficiency, reliable systems designed and installed to a high standard, whether gas boiler or heat pump.
Terry at Lambert Heating & Renewables Ltd
Terry runs Lambert Heating & Renewables, a Surrey-based team of Heat Geek Elite trained professionals. The company focuses on maximum efficiency through careful design and installation, aiming for the best possible return on every customer's investment.
Your Trusted South London Heat Pump Experts
Looking for a reliable heat pump installer in South London? At Heat Geek, we connect homeowners across London with highly trained, trusted heat pump professionals. Whether you’re upgrading your old gas boiler, planning a renewable energy installation, or looking to lower your energy bills, our certified London-based installers deliver top-quality installs.
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
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FAQs
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.