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95 Google reviews
1–2 days
Typical install time
£7,500
BUS grant amount
Heat in London is an MCS certified air source installer based in Greater London. They are registered with the Boiler Upgrade Scheme, meaning they can help you claim up to £7,500 towards your installation.
Based in Greater London, CR09LD
Areas served:
5.0
95 Google reviews
Based on verified Google reviews
Andy Campbell
I found Louis Smith, and Heat in London to be genuine, hard working and skilled heating engineers. They were very competitively priced, did what they said and made an excellent job of converting my old system to a new Combi boiler and relocating it to a more suitable location. Easy to communicate with, explained what they were doing and listened to what the customer wanted. Prompt and tidy and took care of the property they are working in. I will definitely use them again.
Andrew Buckley
Louis and his team came to our rescue when our underfloor heating system failed to work properly. Kept us informed every step of the way and always happy to answer our questions. Would definitely recommend and use his services in the future
Laura Peters
Louis and his team of plumbers were amazing, I was left in the lurch by my builder and Louis came to my rescue, re-doing all the bad plumbing work the contractor had left in his wake. I now have a lovely warm house. Cannot recommend Louis and the boy’s enough, they were hard working, polite and clean. Will definitely use Heat in London for all my future plumbing needs.
Debbie Smith
I had a radiator fitted today by heat in London. Lewis and rob carried out a first class job. Both were punctual, professional, polite and friendly. They left my room clean and tidy before they left. I’m so pleased with my new radiator. Thanks guys. Real service with a smile. Highly recommend this company.
Joanne Durkin
Had a disaster this evening, sprung a leak under the sink upstairs, water coming through the ceiling. Phoned Louis at Heat in London, sent him photos & video of issue. He advised what to do & I was able to fix the problem my self. I wouldn't hesitate to use Heat in London again if I needed work done. This is the 4th time I've used their service, Louis is friendly, professional prompt and extremely helpful and I would whole heartedly recommend them.
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We are MCS‑certified and registered with an approved consumer protection/competent person scheme, which is essential for quality assurance and to access grants like the Boiler Upgrade Scheme (BUS).
We carry out a detailed home assessment, including property type, insulation levels, existing heating system and available outdoor space, to confirm whether a heat pump is a good fit.
We design the system using a heat‑loss calculation for your home, then match the correct kW size and model (for example, air‑source vs ground‑source) so it runs efficiently and reliably.
Our fixed quote clearly lists the heat pump, cylinder, controls, labour, scaffolding (if needed), electrical work and any radiator or pipework upgrades, so you know exactly what you’re paying for.
Yes, as an MCS installer we can confirm your eligibility, apply for the BUS grant (worth up to £7,500) on your behalf and deduct it directly from your quote.
A typical air‑source heat pump installation takes around 2–5 days, and we’ll agree locations for the indoor and outdoor units, manage any planning considerations and keep you informed each day.
After the heat‑loss survey, we’ll advise if any radiators, pipework, electrics or hot‑water cylinder need upgrading so the system can run efficiently at lower flow temperatures.
Modern heat pumps are designed to be quiet and must meet UK noise regulations; we’ll position the unit to minimise any impact on you and your neighbours and comply with local planning rules.
You’ll get manufacturer warranties on the heat pump plus our workmanship guarantee, and we offer ongoing servicing and support to keep your system performing at its best.
We’ll estimate your likely annual running costs and potential savings based on your current fuel type, insulation level and tariffs, using real‑world performance data rather than lab figures.
Boiler Upgrade Scheme
Up to £7,500
off your heat pump installation
This installer handles the full BUS grant application — deducted directly from your quote. No upfront payment needed for the grant amount.
Scheme open until 2028 — limited funding available
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