Skip to main content

Air source heat pump installation guide

Thinking about installing an air source heat pump but not sure what’s involved, how long it takes, or what to expect?

From your first quote to installation day and beyond, this guide walks you through every step.

Or, you can simply enter your postcode and get started!

What happens during your consultation?

To make sure we give you an accurate quote and design a system that works for your home, we need to know about your current set up.

Once you've answered a few basic questions online, we'll contact you and complete a free, no obligation telephone consultation so we can discuss:

  • Your home’s current insulation and heating system (radiators, underfloor heating, etc.)
  • Desired temperature levels
  • Where we could install your heat pump and cylinder (if necessary)
  • What sort of heat pump system could be suitable for your property
  • Whether your radiators need upgrading

Then we'll give you a no-obligation quote and, once you've confirmed you’re ready to proceed, we’ll take a deposit of £850 (even if you're paying with finance) and have you sign your contract to secure the order.

Get a heat pump

Why choose EDF for your air source heat pump?

EDF logo

Our Heat Pump Promise

We only install heat pumps we’re confident will keep your home warm. But, if it doesn’t perform as promised, we’ll give you your money back.

Terms & Conditions apply

Which? Trusted Trader accreditation logo

Which? Trusted Trader

EDF Heat Pumps have met high standards for quality, reliability and customer service, so you can be confident you're choosing an installer that delivers on performance and value.

MCS certified solar panel and solar battery installers

MCS certified

MCS is the UK’s quality mark for heat pumps, setting the standards for installers and the products they use, highlighting quality, competency and compliance. Accreditation is required to access government grants.

Air source heat pump next to side of house

How does the home survey and design process work?

Once you have confirmed you are happy with your quote and placed your order, what happens next?

We'll book a provisional installation date and arrange a time for a member of our team to visit your home and take measurements, gather some details and take photos. We'll use these for our heat loss calculations so our team can design a bespoke system for you.

When we've finished our design, we'll check in with you to make sure you're happy and then we'll send some documents for you to approve.

Bear in mind
If you live in England or Wales, at this point we’ll apply for the Boiler Upgrade Scheme on your behalf, a government grant of £7,500, or £9,000 if you’re replacing an oil or LPG system.

Customers in Scotland will need to apply for the Home Energy Scotland Grant, which could be worth up to £7,500, or £9,000 for some properties in rural Scotland.

Learn more about heat pump grants

How is an air source heat pump installed?

Now, the exciting bit: your system is installed by one of our network of trusted local installers.

Heat pump installations usually take 4 or 5 days, depending on the type of heat pump you choose to install, but this is what a typical installation looks like:

The installers usually arrive early to go over the design and walk you through the process. They’ll put down coverings, unpack and check all of the equipment, and once the system has been drained, they’ll get started with the installation.

Once the units are in place, the installers get to work fitting the pipes and electrical connections. There may be a short power shutdown while the electrical work is carried out, but they’ll keep any disruption to a minimum.

If your plan includes radiator upgrades, these will be done to help improve efficiency. The team installs the heat pump system first to keep downtime to a minimum, then they will remove your boiler and switch everything over to your new heat pump.

The system is then commissioned, with everything checked, filled, and tested to make sure it’s running properly. The installers will set up the controls, walk you through how it all works, and help you get any relevant apps up and running.

We’ll then ask you to settle the remaining balance, which is due within 7 days of your installation date.

Where can a heat pump be installed?

Air source heat pumps are flexible and can be installed in a variety of homes, whether it’s a flat, an older house, or a terraced home.(1) Generally, you'll need about 2 meters by 1 meter (roughly 6.5 feet by 3 feet) of clear outdoor space to make sure the heat pump operates efficiently.

The external unit must always be placed outdoors as it draws in air to generate energy, but the indoor components, such as the cylinder and controls, can be placed in spaces like garages, airing cupboards, or even spare rooms and basements.

Installer showcasing a heat pump

"It's the best investment we've ever made "

"Being cold in this house is something we'd always had but we don't have that any more. It's cosy and warm all year round."

- Caroline, EDF Heat Pump customer

Start your heat pump journey

What happens after your heat pump installation?

Last of all, we’ll inspect and hand over your new heat pump, ready to start warming your home.

We'll register your system with MCS and issue your warranty documentation, guarantee, and completion certificates.

We recommend an annual service for your air source heat pump to keep it running smoothly and maintain its warranty.

Here’s what’s covered during servicing:

  • Cleaning filters
  • Checking water pressure
  • Inspecting the heat pump
  • Looking for leaks and checking safety devices

 If a manufacturer cylinder is installed this will also be part of the servicing, ensuring all safety features are checked.

Heat pump installation FAQs

We highly recommend leaving it to the professionals. An installer's role goes beyond just installing units; they design a heat pump system tailored to your home's needs and make sure it runs efficiently for years. They also know how to handle any unexpected issues during installation.

If you install the heat pump yourself, you will not receive the Boiler Upgrade Scheme (BUS) government grant. To receive the BUS grant the heat pump must be designed, supplied and installed by a MCS approved installer, such as EDF Heat Pumps.

Here are three things to look out for:

  • Accreditations: choose an installer who is accredited by the Microgeneration Certification scheme (MCS). This means that the installer has undergone installer training and adheres to industry standards.
  • Experience and expertise: look for installers with a proven track record and extensive experience installing air source heat pumps for a range of different homes.
  • Reviews: Feedback from other customers can give you valuable insight into the installer's professionalism and customer service.

In most cases, you don’t need planning permission to install a heat pump, especially if it’s a typical air source model that we install. However, if you live in a listed building or a conservation area, you'll likely need planning permission. We recommend reaching out to your local planning office for more guidance. We'll also be here to help with any questions you may have about planning permissions.

Yes, and regulations can vary depending on where you are. Generally, you’ll need to make sure the installation complies with local building codes, energy efficiency standards, and sometimes zoning laws.

For example, heat pumps can now be installed closer to a property boundary, as long as it meets the acoustic rules and won't be too noisy for your neighbours, and is installed by a certified professional, like EDF heat pumps. But don’t worry - you won’t need to get to grips with the regulations yourself as we’ll take care of everything for you.

When we do our home survey, we carry out a noise assessment to make sure the heat pump is suitable for its location and won't be too noisy. Rather than relying on just distance from the boundary, we take into account the position and orientation of the heat pump, nearby surfaces and the noise level at neighbouring properties.

More information can be found in the government's Review of Air Source Heat Pump Noise Emissions, Permitted Development Guidance and Regulations, but research shows that choosing a good location and proper installation are more important than a specific distance from a neighbour's boundary.

An air source heat pump in the snow

What is an air source heat pump?

Read our intro to heat pumps guide to learn about the pros and cons, the different types and how they work.

Learn about heat pumps

Man sitting inside cosy home with ashp unit outside

How much does an air source heat pump cost?

Learn about heat pump pricing and how much you could save with a more energy-efficient system.

Explore costs & savings

family outside by heat pump

Our air source heat pump tariffs

Save on energy bills and reduce your carbon footprint when you switch to our exclusive air source heat pump tariffs.

Find your tariff

EDF Heat Pumps is a Which? Trusted Trader, proud to offer a unique network of accredited local professionals known for quality, reliability and outstanding customer service. 

Get your heat pump