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128 Google reviews
1–2 days
Typical install time
£7,500
BUS grant amount
Geothermique Limited is an MCS certified air source installer based in Buckinghamshire. They are registered with the Boiler Upgrade Scheme, meaning they can help you claim up to £7,500 towards your installation.
Based in Buckinghamshire, MK18 1TF
Areas served:
5.0
128 Google reviews
Based on verified Google reviews
Tomekai T'g
We recently had our boiler changed into a combi, and received outstanding service from start to finish. The initial consultation was very informative, with multiple options tailored to our specific needs. Rob, the technician who installed the boiler, was excellent. He completed the work smoothly and respectfully, taking great care of our home. Once finished, he made sure we fully understood how to use and maintain the new boiler. During the period between the consultation and installation, Glow kindly lent us electric heaters free of charge so we wouldn’t be left without heating. Fantastic service all around - highly recommended.
Scott Nixon
Just had the boiler changed to a combi boiler after 26 years of using the old water tank system and these gentlemen did it professionally and without causing any worries for me. They took the water tank out and put a radiator in and showed us how to use the new Hive system, and were near and tidy while being on time over the three days. Thank you so much Glow!
Sharon Bonsell
Dan came round and gave a quote for my new boiler install and the price was better than any other company. This was promptly booked in and they could do this before the cold weather really hit. Rob arrived on the date we arranged and installed my boiler. Very pleasant and explained what would be happening each day as this was a relocation along with new system. He worked efficiently, cleared up after himself along with being very pleasant and helpful. The day after they called to check if any concrrns. Would 100 %recommend this company. Great work and a lovely warm home.
Stanislav Musin
⭐⭐⭐⭐⭐ Amazing service from Danny! He was extremely professional, friendly, and reliable from start to finish. The job was done quickly and to a very high standard. 10/10 service – I wouldn’t hesitate to recommend Danny to anyone looking for a great plumber!
Andy Joyner
We had a recent boiler installation. All work was done as promised, the install is great, Glow are easy to deal with, friendly, very tidy and reasonably priced. Highly recommended
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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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