ASHPs extract heat from outdoor air, even at temperatures as low as -15°C, and use it to warm your home and hot water. They are 3 to 4x more efficient than traditional boilers, delivering 3 to 4 units of heat for every 1 unit of electricity used.
A fan draws outside air over an evaporator containing refrigerant, which absorbs the heat energy.
A compressor increases the temperature of the refrigerant to a usable level for heating.
The hot refrigerant passes through a heat exchanger, warming water for your radiators, underfloor heating, and taps.
3 to 4x more efficient than gas boilers, delivering more heat for every unit of energy used.
Up to £7,500 available through the Boiler Upgrade Scheme to reduce your upfront cost.
Far lower carbon than gas or oil heating today, and falling every year as the grid gets cleaner.
Effective even at -15°C outdoor temperatures, keeping you warm through the coldest winters.
We assess your property to determine the right heat pump system for your home.
We design your system and apply for the Boiler Upgrade Scheme grant on your behalf.
Our engineers install your heat pump to the highest standards.
Full system handover with every certificate, the grant paperwork, and the manufacturer’s warranty on the unit registered in your name.
A heat pump in the wrong house disappoints. These are the checks that decide it, and we do them at the free survey.
A room by room calculation, not a rule of thumb. Loft and wall insulation first if the numbers say so; a heat pump sized to a leaky house costs more to run than it should.
Heat pumps run cooler, so some radiators grow and microbore pipework may need attention. We list exactly which, with the quote.
Room for a hot water cylinder indoors, and a spot outside for the unit with clear airflow, away from bedroom windows.
Your electricity supply and the Boiler Upgrade Scheme rules, which require the property to be in England or Wales with a valid EPC. We handle the application.
The same heat loss method and the same engineers, whether it is your house or a landlord’s heating upgrade programme.
A free survey with a room by room heat loss calculation, then an honest recommendation: heat pump, first time central heating or a boiler, and what funding applies.
Heat pumps sit within the whole house retrofit programmes we deliver, with PAS 2035 assessment and coordination done by our own people.
An ASHP absorbs heat from outside air and transfers it into your home via a heat pump unit. It works like a fridge in reverse, extracting warmth from the air even in cold temperatures and using it to heat your radiators, underfloor heating, and hot water.
Installed costs for a typical house are usually in the region of £8,000 to £14,000 before the grant, depending on the size of the unit, whether a new hot water cylinder is needed and how many radiators change. The £7,500 grant comes off that. We provide a full breakdown during your free home survey.
Yes, modern ASHPs work efficiently down to -15°C. They are widely used in Scandinavian countries with much harsher winters than the UK, so they are more than capable of keeping your home warm year round.
Usually not required as ASHPs fall under permitted development rights. However, we always recommend checking with your local authority, especially for listed buildings or properties in conservation areas. We can advise you during the survey.
An annual service is recommended, similar to a boiler service. Filters should be cleaned regularly, and the outdoor unit should be kept clear of debris and leaves. Overall maintenance is minimal compared to traditional heating systems.
Some usually do. A heat pump runs the water cooler than a boiler, so radiators need more surface area to give the same heat. The heat loss survey sizes each room and tells you which radiators stay and which change, before you commit.
The outdoor unit hums at a level similar to a modern fridge from a metre or two away. We position it away from bedrooms and neighbours and check it against the permitted development noise limit as part of the design.
A heat pump heats a hot water cylinder rather than giving water on demand like a combi boiler, so most installs include a new cylinder. We check there is space for one at the survey.
Yes. Heating upgrades are the core of the whole house retrofit programmes we deliver, with PAS 2035 assessment and coordination done in house. See the Aspire Housing case study or our sub contracting page.
Funding changes often, so ask us for the current position. As of September 2026 the Boiler Upgrade Scheme gives £7,500 towards an air source heat pump, the Warm Homes: Local Grant runs through councils for eligible lower income households, and social landlords have the Warm Homes: Social Housing Fund. We will tell you honestly whether you are likely to qualify.
Homeowners get a free heat loss survey and an honest recommendation, with the grant applied for. Housing providers and contractors get heating upgrades surveyed and coordinated under PAS 2035.
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