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Unitherm UK Ltd

MCS Certified BUS Registered
C1, Sanderling Court Osprey Road, Sowton Industrial Estate, EXETER, Devon, EX2 7PJ
Air Source specialistBUS grant eligible4 reviewsServes 1 regions

4.8

4 Google reviews

1–2 days

Typical install time

£7,500

BUS grant amount

About Unitherm UK Ltd

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.

System typesAir Source
BUS grant handledYes

Coverage area

Map coming soon

Based in Devon, EX2 7PJ

Areas served:

South West

Reviews

4.8

4 Google reviews

Based on verified Google reviews

m

mickey baker

a year ago

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. 👍🏻

F

Frank McCluskey

3 years ago

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.

P

Peter Thorpe

4 years ago

Immediate response to my enquiry raised through LG. Looking forward to working with these guys.

I

Ian Clements

2 years ago

Frequently asked questions

How do I know you’re properly qualified and certified to install heat pumps?

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).

Can you tell me if a heat pump is actually suitable for my home?

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.

What type and size of heat pump will you recommend for my property, and why?

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.

What will the full installation cost be, and what’s included in your quote?

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.

Can you help me access government grants like the Boiler Upgrade Scheme?

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.

How much disruption should I expect during installation, and how long does it take?

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.

Will I need to replace my radiators or upgrade anything else in my home?

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.

How noisy is the outdoor unit and where will it be installed?

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.

What warranties, servicing and aftercare do you provide?

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.

What running costs and savings can I realistically expect compared to my current boiler?

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.

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Verified credentials
NAPIT Registered
BUS Registered
Quick facts
Regions covered1 areas

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

Check your eligibility

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