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Claim this listing4.8
4 Google reviews
1–2 days
Typical install time
£7,500
BUS grant amount
Unitherm UK Ltd is an MCS certified air source installer based in Devon. They are registered with the Boiler Upgrade Scheme, meaning they can help you claim up to £7,500 towards your installation.
Based in Devon, EX2 7PJ
Areas served:
4.8
4 Google reviews
Based on verified Google reviews
mickey baker
Absolutely first class company for ordering LG Heat Pump replacement parts. Their Technical help is exceptional! Better than LG technical themselves! Spoke with Alistair from Unitherm Technical with a particularly tricky problem our company was having with an older LG heatpump, I found his knowledge second to none & he advised very well how to get the unit up & running, highly commend Alistair. Thanks man. 👍🏻
Frank McCluskey
I was at the NEC in late March 2022, I was talking to one of their employees about my problem with Underfloor Heating installed by Builders in London. The verbal advice given was backed up by an email from Gina, subsequently the Builders installed separate controls for Underfloor Heating & Central Heating. Without this email the Builders would not have installed separate controls. I very appreciate Gina's expert advice & precious time afforded me.
Peter Thorpe
Immediate response to my enquiry raised through LG. Looking forward to working with these guys.
Ian Clements
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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