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Claim this listing4.7
26 Google reviews
1–2 days
Typical install time
£7,500
BUS grant amount
Cruickshank Plumbing & Heating Limited 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, DA5 3BT
Areas served:
4.7
26 Google reviews
Based on verified Google reviews
Juleshoodlord
Originally Cruikshank’s came to service our old Baxi back boiler. John came, did a great job and provided great advice. He later fixed a blockage in our central heating pipework, fixed and upgraded our immersion heater so that it now works on a timer. Very professional, no fuss and very customer focused. Will use his services again.
Mike G
John is by far the best heating engineer we have ever worked with. Not only is he incredibly knowledgable, he’ll actually solve issues other people missed, so you’ll save money. He’s also a great guy, very responsive, and pleasure to deal with. Thank you, John!
Plumberoo Christopher Levick
Huge thanks to John for the rapid response and expert help with our commercial boiler issue. His professionalism, clear communication, and ability to quickly diagnose and resolve the problem were truly impressive. Outstanding service—we couldn’t recommend him highly enough!
Steve Bassi
I run a busy coffee shop in London and needed a new central heating boiler installed. I used AI to help find a reliable contractor, but found many advertised firms were not who they claimed to be—some had even been struck off. Cruikshanks stood out as a genuine, established company with proper accounts and a long trading history. I contacted them for a quote and John Cruikshank came personally. He arrived promptly, gave solid professional advice, and quoted a fair price. I accepted. John and his team turned up early on the day, worked efficiently, and completed the job with minimal disruption. The installation was excellent. John is a consummate professional and also a genuinely decent bloke. Highly recommended.
Kai Spiekermann
John installed a air-source heat pump for us, replacing an ageing gas boiler. We couldn't be more pleased. John started by carefully designing the requirements for this retro-fit project. Drawing on his extensive knowledge as a "heatgeek", but also on a healthy dose of common sense, John built us a system that is simple, reliable and extremely efficient. And he did all this with minimal disruption in our house. We now have comfortable, even heat throughout the house. And, most importantly, the system is so far about 450% efficient, which is an outstanding value for an air-source heat pump. This was achieved because John decided early on to aim for low flow temperature and open loop system. The project came in at the price quoted -- and cheaper than other quotes I had seen. I highly recommend asking John when you are considering upgrading your house with a heat pump.
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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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