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.
Simply enter your postcode to 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 for a free 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 (whether you're paying with finance) and have you sign your contract to secure the order.
Why choose EDF for your air source heat pump?
The 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.
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
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.
How does the home survey and design process work?
You're pleased with your heat pump quote and you've 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 send documents for your approval.
How is an air source heat pump installed?
Day 1: Site prep and installation start
The installers usually arrive early to go over the design walk you through the process. They’ll put down coverings, unpack and check all the equipment, and once the system has been drained, they’ll get started with the installation.
Day 2: Pipework and electrical connections setup
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.
Day 3: Radiator upgrades and system switchover
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 removes your boiler and switches everything over.
Day 4/5: System testing and setup
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.
"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
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
Do you need planning permission to install a heat pump?
In most cases, you don’t need planning permission to install a heat pump, especially if it’s a typical air source model. 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. EDF Heat Pumps will also be here to help with any questions you may have around planning permissions.
Are there regulations around heat pump installations?
Yes, and regulations can vary depending on where you're located. Generally, you’ll need to make sure the installation complies with local building codes, energy efficiency standards, and sometimes zoning laws. For example, while heat pumps can now be installed as close as 1m to a property boundary, it's still required that they be installed by a certified professional, with all of our installers being Gas Safe registered and holding a BPEC Level 3 certification. However, EDF Heat Pump will take care of the whole process, so you can relax and leave the technical details to the experts.
Does the heat pump need to be a certain distance away from neighbours?
There’s no universal rule for the exact distance, but it’s definitely a good idea to install the heat pump far enough from your neighbors to avoid any noise issues. Most heat pumps can make some noise when they’re running, typically around 50-60 decibels, which is about the level of normal conversation or a dishwasher. If you're concerned about the noise, there are some ways to reduce it, like choosing a quieter model or placing the unit in a less noisy part of your garden.
Are heat pumps expensive to install?
The upfront cost of installing a heat pump can be higher compared to traditional heating systems, but it’s important to think about the long term benefits. Heat pumps are highly efficient; they can be 300% more efficient than a traditional gas boiler, which can save your energy bills over time. Plus, with air source heat pump grants available in many areas, the installation costs can be more manageable.
If you’re not quite ready to fully switch to a heat pump, no worries. Take your time to explore all your heating options and find the perfect fit for your home and budget.
What's the average cost of an air source heat pump installation?
After the government grant, the cost of air source heat pumps can vary between £4,100(2) and over £10,000 depending on several factors, such as;
- how powerful the unit is
- the brand
- government grants
- installation costs
(£4,100 price assumes reuse of a suitable existing hot water cylinder. Homes requiring a new cylinder will have an additional cost).
We understand that switching to a heat pump from a traditional heating system can feel overwhelming. That's why we back our heat pumps with a promise: if it doesn’t perform as promised, we’ll give you your money back. T&Cs apply. Plus, you could always take advantage of flexible heat pump payment plans from EDF Heat Pumps to spread the cost.
You can also get more from your heat pump by joining one of our air source heat pump tariffs!
Can a heat pump be installed in flats?
Yes, heat pumps can be installed in flats(1)! The process might differ a bit from houses, but it's absolutely possible. The key things to consider are having enough space for the outdoor unit for air flow and whether your building allows external modifications. It’s always best to check with your building management and a professional installer to make sure everything is in place.
Can a heat pump be installed in a garage?
Yes, heat pumps can be installed in garages, but there are some important points to keep in mind! While the indoor unit, such as the cylinder and controls, can be installed in areas like a garage, airing cupboard, or even a basement, the outdoor unit always needs to be placed outside. This is because the outdoor unit draws in air from outside to convert it into energy. Just like with flats, checking local rules and consulting a professional installer can help make the process smoother.
Can you install a heat pump in a terraced house?
Absolutely, heat pumps are a fantastic choice for terraced houses. The installation might need a few adjustments based on the space available for the outdoor unit, and it’s important to make sure it's not too close to a neighbor’s wall. If you're interested in learning more about how heat pumps can work for your home, check out our air source heat pump guide.
Can I install a heat pump myself?
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 BUS 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.
How long does it take to install a heat pump?
Heat pump installations usually take 4 or 5 days, depending on the type of heat pump you choose to install. In some cases, a solid base or drainage may be needed before the heat pump can be installed. But don’t worry, we’ll have everything discussed and tailored to your home during the design process, so you’ll know exactly what to expect.
How do I choose the right heat pump installer?
Choosing the right installer is the most important decision to make when getting a heat pump, as it's crucial for getting the design and installation done correctly. Here are three things to look out for:
- Accreditations: choose an installer who is accredited by reputable organisations such as the Microgeneration Certification scheme (MCS). This accreditation ensures 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 in installing air source heat pumps for a range of different homes. Ask your potential installer lots of questions, any experienced and competent installer will be able to answer them with ease.
- Reviews: read customer reviews, ask for references and check the installer's portfolio. Feedback from other customers can give you a valuable insight into the installer's professionalism and customer service.
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.
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.
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.
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.