UK Free Air Conditioning Scheme Explained: How to Get a Heat Pump Installed at No Cost

As temperatures continue to rise across the UK, many households are searching for affordable ways to keep their homes cool during extreme summer weather. With heatwaves becoming more frequent and temperatures reaching as high as 35C in some areas, installing air conditioning may seem like an expensive but necessary solution.

However, thousands of homeowners could be eligible for a Government-backed scheme that helps cover the cost of installing a cooling system completely free of charge.

The UK’s Boiler Upgrade Scheme (BUS), which forms part of the wider Warm Homes programme, has been expanded to include air-to-air heat pumps. These systems work like air conditioning units during hot weather while also providing heating during colder months.

Despite the potential benefits, the scheme remains largely unknown. Energy experts have suggested that many eligible households are missing out, with only a small number of applications made since air-to-air heat pumps were added to the scheme.

Here is everything you need to know about the free aircon alternative, including what you can receive, who qualifies, and how to apply.

What exactly is the free aircon scheme?

The scheme does not provide traditional standalone air conditioning units. Instead, eligible households can receive financial support towards installing an air-to-air heat pump.

These modern systems are designed to provide both cooling and heating. During summer, they remove warm air from inside your home and transfer it outside, creating a cooler indoor environment similar to a conventional air conditioning system.

In winter, the process works in reverse. The system collects heat from the outside air, even in colder temperatures, and transfers it indoors to warm your home.

This means homeowners can benefit from one energy-efficient system that works throughout the year instead of buying separate cooling and heating equipment.

Under the Boiler Upgrade Scheme, households may be able to receive a grant of up to £2,500 towards the installation cost of an air-to-air heat pump.

The typical cost of these systems varies depending on the size of the property. A single-room installation may cost around £1,900, while a larger three-bedroom home could require an installation costing approximately £3,700.

The Government support can significantly reduce the upfront cost for eligible homeowners.

Why are air-to-air heat pumps becoming popular?

Traditional air conditioning units are often only used during warmer months, meaning they sit unused for much of the year. Air-to-air heat pumps offer a more flexible alternative because they provide cooling in summer and heating in winter.

Energy experts say these systems can help households reduce reliance on older heating methods while improving comfort during extreme temperatures.

The Government has described heat pumps as offering consumers “the best of both worlds” because they can help manage changing weather conditions throughout the year.

As energy costs remain a concern for many families, systems that provide efficient heating and cooling could become increasingly attractive.

Who can apply for the grant?

The Boiler Upgrade Scheme is open to homeowners across England and Wales, but not every property will qualify.

To receive funding, the new heat pump generally needs to replace an existing fossil fuel heating system or a standard electric heating system.

There is no household income limit for applying, meaning eligibility is not based on salary or earnings. However, there are certain property restrictions.

You may not qualify if:

• Your property is a new build that does not meet the scheme requirements

• You live in social housing

• You have already received certain Government funding or financial support for a heat pump or biomass boiler

• Your property does not meet the technical requirements set by the scheme

Because rules can change, homeowners should check the latest eligibility requirements before making plans.

How do you apply for the free aircon grant?

The application process is completed through an approved installer rather than directly by the homeowner.

The first step is to contact an MCS certified installer. MCS certification confirms that installers meet recognised industry standards for renewable energy installations.

Your installer will assess your property, discuss your heating needs, and confirm whether an air-to-air heat pump is suitable.

They will then provide information about installation costs and explain how much financial support you may receive.

If you decide to continue, the installer will submit the grant application through Ofgem on your behalf.

If approved, the grant amount, which can be up to £2,500, is deducted from the total installation cost. This reduces the amount you need to pay.

Why are so few people claiming the support?

Although the scheme has funding available for a large number of households, awareness remains relatively low.

Energy analysts have suggested that many homeowners do not realise that air-to-air heat pumps can qualify for Government support.

Some people may also assume that grants are only available for traditional heating upgrades, without knowing that these systems can provide cooling during hot weather.

With summer temperatures increasing, experts believe more households could benefit if they understand how the scheme works.

Things to consider before applying

While a free or discounted cooling system sounds appealing, homeowners should consider a few factors before making a decision.

First, check whether your property is suitable. The size, insulation, and layout of your home can affect how effective a heat pump will be.

Second, compare quotes from approved installers. Installation costs can vary depending on the complexity of the work.

Finally, remember that the grant only covers part of the cost in many cases. You should understand the remaining amount you may need to pay before agreeing to installation.

Final thoughts

The UK’s air-to-air heat pump grant could provide a valuable solution for homeowners looking for a way to stay comfortable during increasingly hot summers while also improving winter heating efficiency.

With funding available and thousands of households potentially eligible, the scheme could help families avoid paying the full cost of installing a cooling system.

If you think you may qualify, speaking with an approved installer is the best first step. They can confirm whether your property meets the requirements and guide you through the application process.

Source: Information adapted from reports published on 10 July 2026 regarding the UK Boiler Upgrade Scheme, Ofgem guidance, and Government energy efficiency announcements.

Disclaimer: This article is for general information purposes only and does not constitute financial, legal, or energy advice. Eligibility rules, grant amounts, and scheme requirements may change. Always check the latest official Government guidance or speak with a certified installer before making decisions.