How much does a heat pump cost?

To give you a detailed breakdown of your heat pump costs, we just need a few simple details from you. Using this information along with your home’s Energy Performance Certificate (EPC), energy usage, and other smart data sources, we calculate a fixed price tailored to your home. Looking for the quickest way to find out how much a heat pump will cost to buy and install?

Enter your postcode & get a no-strings estimate in minutes!

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How do we keep your heat pump cost lower than most?

⭐️ We’re one of the UK’s biggest heat pump installers, and a bit obsessed with making heat pumps more affordable. We’ve pumped £50 million into cutting costs (even building our own!). Plus, we throw in extras like planning help, EPCs, asbestos checks, and aftercare.

⭐️ Our typical heat pump installation costs around £4,460 with the BUS grant, helping customers save around £380 a year on energy.

⭐️ Heat pumps pair perfectly with smart tariffs like Cosy Octopus, so this one-time cost can unlock hundreds of pounds in savings every year. And going forward, replacing your heat pump will be as easy as replacing your boiler. Plus, heat pumps last up to 20 years, while gas boilers only last up to 15 years.

What's included in the heat pump costs?

There are three main heat pump costs to keep in mind: installation, running, and servicing.

  1. Heat pump installation costs: how much does a heat pump cost to buy and install after applying the £7,500 government heat pump grant.
  2. Heat pump running costs and savings: how much will you save on your energy bill once you’re committed to a heat pump.
  3. Heat pump service costs: how much to expect for heat pump servicing costs and maintenance.

From the moment you start your quote to the heat pump survey at your home, we make sure everything’s clear and accurate. If anything changes, we’ll update your heat pump quote, with full control from your part. Now let’s break down what’s actually included in your heat pump costs.

  • An air source heat pump: Octopus Cosy or Daikin, depending on what’s the best fit for your home.
  • Installation & configuration by our expert team.
  • A compatible hot water cylinder.
  • Any radiators necessary for your system and design.
  • Plumbing, pipework & electrical bits needed to meet the Octopus design standard.
  • All delivery and labour required to complete the install.
  • 8-year product warranty with a Cosy heat pump, or 5-years for other brands.
  • £7,500 Boiler Upgrade Scheme grant (we apply for this grant on your behalf).
  • Free asbestos testing
  • Free Energy Performance Certificate (EPC) application if required (you will need an up-to-date EPC to claim the BUS grant.
  • 2-year warranty on all other parts.
  • 5-year warranty on labour & workmanship.
  • A dedicated team to support with everything, from quote to installation and beyond.
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Are heat pumps worth the investment?

If you’re looking to figure out whether a heat pump is worth the up-front cost, look no further. In this video, our heat pump pro, Ben, gives the low-down on the benefits of switching and all the heat pump costs involved in a typical installation as of Sept 13 2024. For latest figures, check out this blog.

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Looking to spread the costs for your heat pump?

There are a range of grants and financing options to make heat pump costs more affordable for UK homeowners. Here's a summary of what's available:

  • Boiler Upgrade Scheme (BUS): a grant for people in England and Wales to get up to £7,500 off a low carbon heating system. We take care of the entire heat pump grant application for you. The £7,500 grant is automatically applied to your quote, so you don’t have to lift a finger.
  • Energy Company Obligation (ECO) Scheme: eligible households may receive free or discounted home energy upgrades, including heat pumps, insulation, and solar panels. Eligibility is based on factors like income, benefits received, and property type.

  • Flexible financing with Novuna. if you're interested in paying monthly for your heat pump, we can connect you with Novuna, who can arrange loans between 5 and 10 years. All loans are subject to status and affordability.

  • £2000 cashback scheme: you could claim up to £2,000 cashback from your bank when you install a heat pump through Octopus Energy

You can find out more about heat pump costs in the cost, grants and savings section of our FAQ.

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Knowledge is Power

What is a heat pump?
Air source heat pump versus boiler illustration
How much can you save with a heat pump?
Octopus air source heat pump
Frequently asked questions

Published on 18th June 2025 by:

image of Becky Boulton

Becky Boulton

Green Hero

Hey I'm Constantine, welcome to Octopus Energy!

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