Smaller home
2–3 bed · 5kW unit
Survey-led
Fixed written quote after survey
Modest semi or terrace with reasonable insulation. Standard 5kW outdoor unit, 200L cylinder, light radiator upgrades.
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Running Costs
Lower bills.
Lower carbon.
A modern air source heat pump delivers three to four units of heat for every unit of electricity it uses. For a well-suited home that means lower running costs than a gas boiler, year after year, and a much smaller carbon footprint.
Source: Energy Saving Trust
Whether a heat pump is right for you comes down to your home, not a sales pitch. We tell you straight before you spend anything.
Suitability · Quick Check
- ✓Space outside for the outdoor unit
- ✓Reasonable loft and cavity insulation
- ✓Room for a hot-water cylinder indoors
- ✓Radiators that can run at lower flow temperatures (we resize where needed)
- ✓A home you plan to stay in long enough to enjoy the savings
Not sure if your home's suitable? Call us — we'll tell you in 5 minutes, no survey needed.
How It Actually Works
No magic. Just physics.
Heat pumps don't *generate* heat — they *move* it. They take warmth out of the outside air and concentrate it indoors, the way a fridge does the opposite. The result is 3–4× more heat out than electricity in.
Capture
A fan draws outside air across a refrigerant coil — even at 0°C the air still holds usable heat. The refrigerant absorbs it and turns to vapour.
Compress
A compressor squeezes the vapour, raising its temperature dramatically. This is the only stage that uses meaningful electricity.
Transfer
The hot refrigerant passes through a heat exchanger, transferring heat into your central heating water and hot water cylinder.
Repeat
For every 1 kWh of electricity used, a modern heat pump delivers 3–4 kWh of heat. That's the whole reason it's greener than gas.
The Honest Bit
Not every home is right for one.
Most installers will sell a heat pump to anyone who'll buy one. We won't. Here's the rough qualifier — if you're a "no" on the right-hand side, we'll usually say so on the phone before booking a survey.
Real Numbers
What you'd save vs staying on gas.
Modelled on a typical 3-bed semi using 12,000 kWh/year of heat. Assumes current price cap, 3.5 SCOP heat pump, modest annual energy inflation. Your numbers depend on your home — we model yours properly at survey.
Indicative only. Actual savings depend on your home, insulation, electricity tariff and usage patterns. We can run a personalised model at survey.
From Survey to Sign-Off
Heat pump installation in five steps.
01
Free suitability call
We ask about your property, insulation, hot water demand and outdoor space. If a heat pump isn't right for you, we say so on the phone — no survey needed.
02
On-site heat-loss survey
Full heat-loss calculation, room-by-room. Existing radiator schedule reviewed and resized if needed. Outdoor unit position agreed with you. Detailed written quote within a week.
03
Design & schedule
We finalise the system design — unit size, cylinder and any radiator changes — order the equipment and agree your install dates. Nothing is booked in until you've approved the plan.
04
Installation
Most installs take 3–5 days. Outdoor unit, indoor controls, cylinder, radiator changes if needed, and full pipework. Floors and carpets protected throughout.
05
Commission & sign-off
System balanced, controls set, and a full handover walkthrough. Commissioning certificate and all documentation issued for your records and any future warranty claims.
Indicative Pricing · Survey-Led
Three property sizes. Real ranges.
Heat pump pricing varies too much by property to quote on a page. Every install is survey-led — we measure heat loss, size the unit, plan radiator changes and confirm a fixed price in writing before any work starts.
Most Common
Family home
3–4 bed · 8kW unit
Survey-led
Fixed written quote after survey
Typical 1980s+ family home. 8kW unit, 250L cylinder, 4–6 radiator upgrades for low-flow performance.
Larger property
4+ bed · 12kW unit
Survey-led
Fixed written quote after survey
Detached or extended property. 12kW unit, 300L cylinder, full radiator review. May include buffer tank.
All prices include VAT, full system design, install, commissioning and certificate. Excludes electrical supply upgrades or major insulation works if needed.
What Customers Say
Greener homes. Lower bills.
★★★★★
"Heat pump rescue"
We have nothing but praise for Adam & Danny — they did a great job sorting out our heat pump issues (which was fitted by another company). Just wish we had known of them when ours was fitted a couple of years previously. Nothing was a problem for them, they were very attentive with everything they did at our home. We cannot thank them enough — what a great couple of individuals and great company they are.
Eric Johnson
Verified Google Review · Heat Pump Fault Fix
★★★★★
"Job done in 48 hours"
Absolutely brilliant service from the team. I needed a job doing very last minute. The team responded immediately and booked me in straight away. From initial contact to job done was 48 hours. I couldn't recommend them more.
Tom Smith
Verified Google Review · Last-Minute Emergency Service
★★★★★
"Sorted in 2 minutes"
Absolutely brilliant service from Adam and Danny! They sorted my boiler out in literally 2 minutes. They were professional, friendly, and did an amazingly clean job with no mess left behind at all. Really impressed with how quick and efficient they were. Highly recommend them to anyone needing boiler work done!
Yalda Nowshirvani
Verified Google Review · Boiler Repair
★★★★★
"Put my mum at ease"
Well what can I say — absolutely brilliant service. I would highly recommend this company. They came and fitted a new boiler system for my 85-year-old mother-in-law who's agoraphobic. They're extremely lovely lads and really put her at ease — nothing was too much trouble. They arrived when they said they would (which is a bonus nowadays) and kept me informed throughout. It wasn't an easy job but their work was 100% and they left the place nice and tidy afterwards. I honestly can't rate this company high enough — 10/10 lads, thank you for all your hard work.
Alicia Gee
Verified Google Review · New Boiler System Installation
★★★★★
"Completed in a day"
Danny and his team from Eco Heat Surge replaced our faulty system heating boiler and the work was top class. Completed in a day and left everything clean and tidy afterwards. Wouldn't hesitate to recommend this company to anyone.
Margaret
Verified Google Review · System Boiler Replacement
★★★★★
"Diagnosed clearly"
Had problems with getting hot water for a few weeks and Danny came out straight away and diagnosed the problem, which required replacement of the heat exchange plate. They explained clearly what the issue was and what was needed to fix it. Part was ordered and replaced in a couple of days. All work was undertaken without any mess or disruption — I would use them again and recommend them without hesitation.
Paul Skelton
Verified Google Review · Heat Exchange Plate Repair
★★★★★
"Excellent work"
I had Danny and a team of gas engineers remove my back boiler and relocate a new combi boiler. Excellent work — polite, friendly, and tidy. Would recommend. Good service.
Stephen Vice
Verified Google Review · Back Boiler to Combi Conversion
★★★★★
"Rectified — no problem"
Had the lads come to lay a new gas pipe for a kitchen refurb along with relocating the pipework for 2 new radiators. Then recalled them to move the gas pipe slightly as my measurements were off — which they rectified, no problem. Very professional. Would highly recommend.
Lee Matthews
Verified Google Review · Gas Pipework & Radiator Relocation
★★★★★
"Polite and professional"
Brilliant service by Danny and Adam. So polite and professional! Highly recommended.
Deborah McShane
Verified Google Review · Heating Service
★★★★★
"Definitely recommend"
Eco Heat Surge team — fantastic. Thank you. Definitely the team for the job. So pleased with the work. Definitely recommend.
Shirley Boucher
Verified Google Review · Heating Work
Common Questions
What people ask us most.
Is my home suitable for an air source heat pump?
Most reasonably insulated homes with a little outdoor space and room for a hot water cylinder are a good fit. A draughty, uninsulated solid-wall property will run one, but the bills will disappoint, so we would usually suggest insulating first. We give you an honest answer on the phone before booking any survey.
How much does an air source heat pump cost?
Heat pump pricing is survey-led because it depends so much on your property, the unit size and any radiator changes. We carry out a full heat-loss survey, size the system, and give you a fixed written quote before any work starts. As a guide, a smaller home needs around a 5kW unit and a larger one up to 12kW.
Will a heat pump heat my home as well as a gas boiler?
Yes, when it is sized and designed properly. A heat pump runs at a lower flow temperature than a gas boiler, so it heats your home steadily rather than in short blasts. Some radiators may need upsizing to give out the same heat at that lower temperature, which we plan at survey.
Will I need to replace my radiators for a heat pump?
Not always, but some may need upsizing. Because a heat pump runs cooler than a boiler, each radiator has to be big enough to give out enough heat at that lower temperature. We measure every room at survey and only change the radiators that actually need it.
How much space does an air source heat pump need?
The outdoor unit needs roughly a metre of clear space around it for airflow, so a side return, garden corner or flat-roof spot usually works. Indoors you need room for a hot water cylinder, commonly in an airing cupboard, loft or garage.
Are air source heat pumps noisy?
A modern heat pump is quiet, roughly the level of a fridge humming, and quieter still from inside the house. We position the outdoor unit with both airflow and noise in mind, away from bedroom windows and your neighbours wherever we can.
How long does a heat pump installation take?
Most installs take three to five days, depending on the unit, the cylinder and any radiator changes. We protect floors and carpets throughout, fit the outdoor unit, indoor controls and cylinder, then balance, commission and hand over the system with its documentation.
Will my electricity bill go up with a heat pump?
Your electricity use rises, but your gas bill goes away, and because a heat pump delivers three to four units of heat for every unit of electricity, a well-matched system usually costs less to run overall. We can model your likely running costs at survey.