Heat Pump Costs & Savings
What drives the cost of an air source heat pump, how much you could realistically save on running costs, and the grants and financing that can help.
- Last reviewed: July 2026
- Reading time: 6 minutes
Key takeaway
The upfront cost depends on your home and system size; a heat pump’s efficiency means lower running costs over time, and grants may reduce the price.
What affects the cost
There is no single price for a heat pump, because every home is different. The main factors are the size of heat pump your home needs, how much work is involved in fitting it, and whether your radiators or hot water setup need any changes to get the best from a lower-temperature system.
The main things that affect your price
- The size of heat pump your home needs
- Whether any radiators need upgrading
- How your hot water is stored and heated
- How complex the installation is
How much you could save
Because a heat pump is so efficient, many homes see lower heating costs compared with older, less efficient systems. The exact saving depends on the system you are replacing, your tariff and how you heat your home — but the benefit continues year after year, and grants may reduce the upfront cost.
- Lower running costs
- Efficient heating
- Grants may help
Grants & financing
You do not have to pay everything upfront. There are flexible ways to spread the cost, and you may qualify for government-backed support towards a heat pump. The easiest way to find out what applies to you is a quick, free eligibility check.
Not sure what you can get?
Answer a few simple questions and we will tell you what support and financing may be available for your home.
Frequently asked questions
How much does a heat pump cost?
Prices vary because every home is different. The size of the heat pump, any radiator upgrades and the complexity of the install all play a part. The only accurate way to know is a free, no-obligation quote based on your home.
Will it lower my bills?
A heat pump is very efficient, so homes replacing older, less efficient systems often see lower running costs. Your exact saving depends on the system you are replacing, your tariff and how you heat your home. A free assessment gives you a clearer picture.
Are there grants for heat pumps?
You may qualify for government-backed support towards the cost of a heat pump, depending on your circumstances and property. A quick eligibility check is the easiest way to see what applies to you.
Was this guide helpful?
Your feedback helps us improve our guides.
Last reviewed: July 2026 · Reviewed by: Warmr Heating Team