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Air Source Heat Pump Installation in Somerset & Devon

Your Local Heat Pump Specialists - Taunton Based, Somerset & Devon Wide

Blackdown Heating Ltd installs air source heat pumps for homeowners and properties across Taunton, Somerset, and Devon. Whether you're replacing an ageing oil boiler in a rural Somerset farmhouse or looking to reduce your carbon footprint in a modern home, we'll design and install a system that suits your property and help you access the £7,500 government grant in the process.

We are RECC registered and work through manufacturer-approved installation schemes, meaning our customers can fully access the Boiler Upgrade Scheme (BUS) grant regardless of where we are in the MCS certification process. We handle all the paperwork, you just enjoy the new system. Call for a free site assessment and quote.

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A Blackdown Heating Ltd air source heat pump installation

£7,500 Heat Pump Grant: Boiler Upgrade Scheme

The Boiler Upgrade Scheme (BUS) is a government grant that pays £7,500 towards the cost of replacing a fossil fuel heating system, gas, oil, or LPG — with an air source heat pump. The grant is deducted directly from your installation quote, so you never handle the money yourself.

Here's what makes it straightforward with Blackdown Heating:

  • We assess your property and confirm eligibility before you commit to anything
  • We handle the grant application on your behalf through our manufacturer-approved scheme
  • The £7,500 is deducted from your invoice upfront — no waiting, no claiming back
  • There is also currently 0% VAT on heat pump installations, saving you a further 20% on the installation cost

The BUS grant is available to homeowners in England and Wales, is not means-tested, and runs until March 2028, but grant budgets are finite, so it's worth acting sooner rather than later.

A air source heat pump being repaired by Blackdown Heating Ltd

How Does an Air Source Heat Pump Work?

An air source heat pump extracts heat from the outside air and uses it to warm your home and provide hot water, even when temperatures drop well below freezing. The technology works on the same principle as a fridge, but in reverse: a refrigerant absorbs heat from the air outside, is compressed to raise its temperature, and that heat is then transferred to your heating and hot water system.

The efficiency of a heat pump is measured by its Coefficient of Performance (COP). A well-designed installation will typically achieve a COP of 3 to 4, meaning for every 1kW of electricity used, you generate 3 to 4kW of heat. That's significantly more efficient than a gas or oil boiler, which can never exceed 100% efficiency no matter how modern it is.

Importantly, a heat pump works best when the system is designed correctly for the property. Flow temperatures are lower than a conventional boiler — typically around 35–45°C, which means radiators may need to be upsized, or the system may be better suited to underfloor heating. We carry out a full heat loss calculation before specifying any system, so you get an installation that actually performs as promised.

  • Lower energy bills - reduces reliance on fossil fuels

  • Eco-friendly - slash your carbon emissions

  • Low maintenance - minimal servicing required

  • Government incentives - eligible funding available

  • Quiet operation - low noise, space saving

Diagram showing how air source heat pumps work

1. Outside air

Heat from the outside air is transferred to a refrigerant, which easily evaporates at low temperatures to capture and carry thermal energy.

2. Heat pump

The heat pump compresses the refrigerant, raising its temperature so the stored heat can be used to warm the water in your home or building.

3. Generated heat

The generated heat is then delivered to your radiators or used to warm the water in your hot water cylinder, keeping it ready for use whenever needed.

4. Heated water

The heated water is stored and then distributed to supply taps, showers, and other hot water needs throughout your building.

Our Installation Process

We manage the entire process from initial survey through to commissioning:

  • Free site assessment - we visit the property, assess insulation levels, existing heating system, hot water demand, and available outdoor space for the unit
  • Heat loss calculation - a room-by-room heat loss survey to correctly size the system
  • System design - specifying the right heat pump model, cylinder size, and any radiator upgrades needed
  • Grant application - we submit the Boiler Upgrade Scheme application through our manufacturer-approved scheme and manage it to completion
  • Installation - our engineers handle the full installation including the outdoor unit, pipework, cylinder, controls, and commissioning
  • Handover - we walk you through the controls and settings so you get the best performance and running costs from day one
  • Ongoing servicing - annual heat pump servicing to keep the system running efficiently and maintain any warranty
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A Blackdown Heating Ltd air source heat pump installation

Is My Home Suitable for a Heat Pump?

Heat pumps work well in a wide range of properties, but they perform best where the building is reasonably well insulated. This is particularly relevant across Somerset and Devon, where a large proportion of homes are older stone or solid-wall properties. We'll give you an honest assessment — if a heat pump isn't the right fit for your property right now, we'll tell you.

Heat pumps are not suitable for every property, and we won't try to sell you one that won't work properly. Our free site assessment gives you a clear picture before you make any decisions.

Generally speaking, heat pumps are well suited to:

  • Detached and semi-detached houses with adequate outdoor space for the unit
  • Rural properties currently on oil heating often the most compelling switch given oil price volatility
  • New builds and self-builds designed with lower flow temperature heating from the outset
  • Properties with underfloor heating the low flow temperatures of a heat pump are a perfect match
  • Older properties that have had loft and wall insulation improvements carried out
Map showing our service area across West Somerset and North Devon

Air Source Heat Pump Specialists Covering:

We're based in Taunton and carry out heat pump installations across a wide area including:

Taunton, Wellington, Bridgwater, Burnham-on-Sea, Chard, Ilminster, Crewkerne, Yeovil, Langport, Glastonbury, Street, Wells, Shepton Mallet, Frome, Minehead, Porlock, Wiveliscombe, South Molton, Barnstaple, Tiverton, Crediton, Exeter and surrounding villages and rural areas.

If you're not sure whether we cover your area, just give us a call, we're always happy to help.

Call us today: 07880 724 99807880 724 998

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FAQs

For most properties, yes — particularly those currently on oil heating. A well-designed installation typically achieves 300–400% efficiency, meaning you generate 3 to 4 units of heat for every unit of electricity used. Combined with the £7,500 Boiler Upgrade Scheme grant and 0% VAT on installation, the financial case is significantly stronger than it was even two or three years ago. The key is getting the system properly designed and correctly sized for your property — a heat pump that's undersized or installed without a proper heat loss survey will underperform. That's why we carry out a full assessment before specifying anything.

The Boiler Upgrade Scheme grant is installer-led, meaning we handle the application on your behalf — you don't need to deal with Ofgem or fill in any government forms. We apply through our manufacturer-approved installation scheme, the grant is approved, and the £7,500 is deducted directly from your installation invoice before you pay. You simply pay the net amount. To be eligible, you need to own the property, be based in England or Wales, have a valid EPC, and be replacing an existing fossil fuel heating system.

Yes, modern air source heat pumps are designed to operate efficiently even when outside temperatures drop to -15°C or below. The technology is widely used across Scandinavia, where winters are far harsher than anything we see in Somerset or Devon. Output does reduce slightly in very cold weather, which is one reason correct system sizing matters — a properly specified heat pump will have enough capacity to heat your home comfortably on the coldest days of the year.

Possibly — it depends on the size of your radiators relative to the heat loss of each room. Heat pumps work at lower flow temperatures than a gas or oil boiler, typically 35–45°C rather than 70–80°C. Existing radiators may need to be upsized in some rooms to compensate. We calculate this as part of our site assessment, so you'll know exactly what's needed before any work starts. Properties with underfloor heating are often ideal for heat pumps because underfloor systems already work at low flow temperatures.

A well-maintained air source heat pump should last 15–20 years, significantly longer than a typical gas or oil boiler. Annual servicing is recommended to maintain efficiency and protect the manufacturer's warranty. Some manufacturers offer extended warranty packages of up to 7 years on parts.

Every installation is different — costs depend on the size of the property, the heat pump model specified, whether any radiators need upgrading, and the hot water cylinder requirements. After the £7,500 BUS grant and 0% VAT, a typical installation for a 3–4 bedroom home can cost anywhere from £3,000 to £8,000 depending on the specification. We provide a detailed, fixed-price quote after our free site assessment so you know exactly what you're getting and what you'll pay.

Yes — we offer annual heat pump servicing to keep your system running at peak efficiency. Regular servicing also protects your warranty and helps catch any issues before they become costly. We service heat pumps we've installed as well as existing systems installed by others.

What our customers say

Interested in a Heat Pump? Start with a Free Assessment

The best way to find out whether a heat pump is right for your property is to have one of our engineers take a look. There's no obligation, no hard sell - just an honest assessment and a clear quote if it's a good fit. We cover Taunton, Somerset, and Devon.

Call 07880 724 998 or use the button below to get in touch.

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