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Claim this listingDempsey Heating Limited
4.4
61 Google reviews
1–2 days
Typical install time
£7,500
BUS grant amount
About Dempsey Heating Limited
Dempsey Heating Limited is an MCS certified air source installer based in Norfolk. They are registered with the Boiler Upgrade Scheme, meaning they can help you claim up to £7,500 towards your installation.
Coverage area
Based in Norfolk, NR21 8NL
Areas served:
Reviews
4.4
61 Google reviews
Based on verified Google reviews
David Smallridge
We had an emergency last week when our hot water tank sprung a leak. Rob and his team responded promptly to identify the issue. The required component was ordered and fitted within a matter of hours of it arriving at their depot. A BIG thankyou to the team.
Stephanie
I had a new valve and two air vents in my heating system replaced in the summer at a cost of £575. I asked for a quote for a new bathroom radiator as my elderly one had stopped working properly after being drained during the work. I got no response and gave in. When the heating came on again in the winter I found that the system was not working properly when both the heating and hot water were on together, which resembled the original fault. I wrote three emails and phoned before I got a response. I was told it was a new fault, not connected with their work. They said that they would send a quote for this new job and for the bathroom radiator. No quote was ever sent and there was no response to communication.
Bentley
These guys (& gals) are truly fantastic. I had a fault on my underfloor heating system and Rob (initially) then Kevin (predominantly) gave me advice and a plan to sort the problem. Kevin advised it was probably an electrical issue, which they couldn't do but an electrician would solve. Looking at the pictures I sent him, Kevin also advised he could spot a problem with my electric valves and what to do about it. All this advice freely given with friendly manners. God bless 'em!
christine white
We have used Dempseys on several occasions they are professional, proficient, reliable and reasonably priced. They have gone out of their way to help us with issues we had with our heating system, we would certainly recommend them .
James Beck
Excellent service, the lady that did the job was, quick , efficient and tidy, couldn’t ask for more, will definitely use again, thank you
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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.
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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