Air Source Heat Pump Servicing and Installation

What is an air source heat pump?

An air source heat pump (ASHP) offers an alternative way of keeping your home toasty by generating the warmth itself. And in these days of soaring energy bills, heat source pump installation could help you to make a significant saving. They’re low carbon, and could be particularly cost-efficient if you’re replacing an outdated or costly system. Additionally, ASHP installation is less disruptive than fitting a ground source heat pump.

Browse our Heat Pump Services on the Carter Renewables website.

The benefits of having an air source heat pump

A benefit is that the noise of modern ASHPs is greatly reduced compared with older models, thanks to new government regulations, although this will vary from one model and manufacturer to another. (Midea units, for example, are particularly quiet.) Equally, you may want to consider noise pollution as a potential factor when siting your ASHP.

How does an ASHP work?

These solutions absorb heat from the outside to deliver warmth and piping-hot water to your home. They can extract heat even if air temperatures plunge to below 15°C.
The pumps run on electricity, but they extract renewable heat from the environment, and so heat output outweighs electricity input – and you have an energy-efficient way of keeping your home cosy.


You’ll need to run your pump for longer than conventional systems to keep the temperature in your home consistently comfortable. So it’s vital that your home is always properly insulated.

An air pump heating system works a bit like a fridge – but in reverse – to bring warmth to your property.


The air pump heating system process:

Outside air is blown over a network of tubes filled with a refrigerant. These warm up, converting the refrigerant from a liquid into a gas.

This gas passes through a compressor, which increases the pressure. Compression also adds more heat – similar to the way the air hose warms up when you top up the air pressure in your tyres.

The compressed, hot gases pass into a heat exchanger, surrounded by cool air or water. The refrigerant transfers its heat to this cool air or water, warming it.


This is circulated around your home to provide heating and hot water. Meanwhile, the refrigerant condenses back into a cool liquid and the cycle starts up all over again.

What types of air source pumps are there?

There are two main types of air source heat pump – air-to-water and air-to-heat.

ASHP installation

You also don’t need planning permission for ASHP installation, although you should check with your provider that the energy supply to your property can handle the additional pressure of a domestic air source heat pump.

How much does an air source heat pump installation cost?

Typically, fitting one of these models will set you back between £4,000 and £8,000, although this will also vary according to the particular brand, and heat output. It includes the cost of ASHP installation.
Talk to us about the most efficient air source heat pump for your needs.

Many air source heat pumps qualify for payment through the Renewable Heat Incentive, a government scheme which offers payments to homeowners who generate their own heat.

Do you offer air source heat pump servicing?

Yes, we provide regular servicing for your air pump heating system, as well as installation for Mitsubishi Ecodan and Midea pumps, plus our staff are well qualified to do this, having completed rigorous training in energy efficiency, ASHP and water regulation.

Air source heat pump and solar panels

Air source heat pumps are powered by electricity, so you can minimise your heating costs by running your air source heat pump with solar panels.
If you’re looking for a cost-effective way to power your air source heat pump renewable energy is the way to go. We appreciate that, especially now, our customers are looking for the most efficient way to run air source heat pump systems.

Domestic and industrial air source heat pump servicing and installation in Reading.

Electrical installation services in Berkshire, Oxfordshire, Surrey and Hampshire.

Contact us for an air source heat pump quote today, whether you’re after a domestic or industrial air source heat pump.

Frequently Asked Air Source Heat Pump Questions

How much electricity does an air source heat pump use?

Depending on the size of the unit and the time of year, an air source heat pump can use anywhere from 545 to 7,500 watts of electricity on average. The majority of air source heat pumps use 230 volts and between 4 and 20 amps.

In order to estimate how much energy heat pumps use at various times of the year, particularly in the months when they are cooling rather than heating a home, they are given two independent ratings.

Do air source heat pumps work in winter in the UK?

Even when it’s below freezing outdoors, air source heat pumps can still operate in some instances.
The efficiency of air source heat pumps, however, often decreases when the temperature drops since it takes more energy to warm the air.
This is due to the fact that these machines must continuously absorb enough heat to heat the refrigerant, a liquid with a very low boiling point, until it transforms into a gas.

How long do air source heat pumps last?

Air source heat pumps generally last between 15 to 20 years. Regular maintenance, timely repairs and adherence to manufacturer guidelines can help extend the longevity of your air source heat pump installation, ensuring efficient performance over time.