Heat Pump Installers in London: MCS Engineers, Costs & £7,500 Grant
180+ MCS-certified heat pump installers serve London and the surrounding Greater London. Find one near you, compare quotes, and claim the £7,500 Boiler Upgrade Scheme grant.
By Tom Ashworth, Regional Market Analyst · Last reviewed: May 2026
If you are considering a heat pump in London, you are joining tens of thousands of homeowners across the capital who have already made the switch from gas boilers to cleaner, more efficient heating. London's commitment to becoming a zero-carbon city by 2030 has driven significant investment in renewable heating, and the combination of the £7,500 Boiler Upgrade Scheme grant and 0% VAT makes 2026 one of the best years to install a heat pump in London.
Finding a reliable heat pump installer in London is straightforward, with over 180 MCS-certified companies operating across the city. Competition among London installers keeps prices competitive, though costs tend to run slightly higher than the national average due to London labour rates and the complexity of working with older, denser housing stock.
Whether you live in a Hackney flat, a Wimbledon semi, or a Richmond detached house, there is a heat pump solution that works for your property. London's mild urban microclimate actually helps air source heat pumps perform efficiently, as city temperatures rarely drop below minus 3 degrees even in the coldest winters.
Why London homeowners are switching
London homeowners face some of the highest gas bills in the country, driven by older boilers in draughty period homes. The Greater London Authority's push towards net zero by 2030 has accelerated demand, and the Ultra Low Emission Zone expansion means residents are increasingly conscious of air quality. Heat pumps produce zero direct emissions, making them a natural fit for a city tackling pollution on every front. With property values in London being the highest in the UK, investing in a heat pump also adds long-term value to your home's EPC rating.
London housing stock and installation
London's housing is famously diverse, but terraced houses dominate many boroughs, from the narrow Victorian workers' cottages of Brixton and Hackney to the grand Georgian terraces of Islington. Space for an outdoor unit can be tight, but modern compact ASHPs from manufacturers like Vaillant and Samsung fit comfortably in most rear gardens, side returns, or even flat rooftops. Purpose-built flats are also increasingly viable, with shared ground-loop systems being piloted in several London boroughs.
Heat pump costs in London (2026)
| System | Before grant | BUS grant | Net cost |
|---|---|---|---|
| Air source | £10,000 - £14,500 | - £7,500 | £2,500 - £7,000 |
| Ground source | £22,000 - £32,000 | - £7,500 | Varies (£12k–£23k) |
Source: regional MCS installer benchmarks, May 2026. Final prices subject to MCS heat loss survey.
Finding an MCS installer in London
Start with the official MCS Installer Search filtered to Greater London. Shortlist three companies that have completed at least 50 domestic heat pump installations and ask each for:
- Full MCS heat loss calculation (MCS 3005) for your property
- Proposed heat pump model, kW output, and noise rating (dB at 1m)
- Itemised quote: heat pump, cylinder, radiators, controls, labour, BUS grant deduction
- Manufacturer warranty length (Mitsubishi 5–7 yrs, Daikin 3–5 yrs, Vaillant 5 yrs typical)
- Public liability insurance certificate (minimum £2M)
- Three local references with addresses, ideally completed within the last 12 months
FAQ — Heat pumps in London
How do I find an MCS-certified heat pump installer in London?
London has 180+ MCS-certified heat pump installers covering Greater London. The official MCS Installer Search at mcscertified.com lets you filter by postcode and technology. Always cross-check the installer's MCS number on the live database before signing — certificates can lapse.
How much does a heat pump cost in London?
A fully installed air source heat pump in London typically costs £10,000 - £14,500 before the grant. Ground source systems cost £22,000 - £32,000. With the £7,500 Boiler Upgrade Scheme grant deducted by your installer, most London homeowners pay a net £2,500 - £7,000 for air source. Final price depends on heat loss survey, radiator upgrades, and hot water cylinder.
Is the £7,500 BUS grant available in London?
Yes. The Boiler Upgrade Scheme covers London (Greater London). Your MCS-certified installer claims the £7,500 grant on your behalf via the OFGEM portal and deducts it directly from your invoice. The scheme runs to 31 March 2028.
What heat pump brands are popular in London?
Mitsubishi Ecodan, Daikin Altherma, Vaillant aroTHERM Plus, and Samsung EHS are the most installed air source models across Greater London. Ground source installs in London most often use Nibe, Kensa or Vaillant. Your installer should justify the choice based on your property heat loss calculation, not on which brand they happen to stock.