Install an Air Source Heat Pump for as little as £3k

If you’re thinking about switching to a heat pump, one of the first questions you’ll likely ask is: how much does it cost? And it’s a fair question, because while heat pumps offer long-term savings, getting started is a bigger upfront investment than simply replacing a gas boiler.

But the good news is: it’s more affordable than many people think. Especially when you break it down and understand your options.

Here’s what you need to know.

How Much Does It Cost to Install a Heat Pump In Your Home? 

If your home is already reasonably efficient, and your current radiators, pipework, and hot water tank are suitable, you may be able to install a heat pump without upgrading the rest of your heating system.

A typical air source heat pump-only installation costs between £7,000 and £10,000, and includes:

• The heat pump unit
  
  
• Outdoor and indoor components (e.g. pumps, valves, controls.)
  
  
• A heat pump-compatible hot water cylinder.
  
  
• Smart controls or weather compensating controls
  
  
• Full system design and professional commissioning.
  
  
• MCS certification (which is essential for claiming government grants).
  
  

If you’re in Scotland, you can apply for up to £7,500 through the Home Energy Scotland Grant, or £9,000 if you qualify for the rural uplift. This could bring your total cost to as little as £1,000–£3,000, depending on your grant eligibility.

How Much Does It Cost To Upgrade Your Home Heating System Too?

For many homes, especially those with older radiators, pipework, or a combi boiler, it’s worth upgrading the rest of the heating system at the same time to maximise performance and savings.

Here’s what might be included in a full heating system upgrade:

• Larger or more efficient radiators
• A new, well-insulated hot water tank
• Pipework upgrades (if needed)
• Smart zoning and controls
• Buffer tank or thermal store (in larger or more complex homes)

This type of project can range from £12,000 to £18,000, depending on the size and complexity of your home. Again, the Home Energy Scotland grant covers up to £7,500–£9,000, meaning many customers pay £5,000–£9,000 for a fully modernised, low-carbon heating system.

Why You Don't Need To Do It All At Once

At Renewable Heat, we understand that every home is different, and every homeowner is on their own journey. That’s why we don’t just drop in a heat pump and disappear.

We take a phased approach that fits your home, your budget, and your lifestyle. We can start by installing a heat pump that works with your existing radiators and run it at slightly higher temperatures, helping you start saving money and cutting carbon immediately.

Then, when the time is right, we can help you:

Upgrade your heating system for even greater efficiency

• Add solar panels to generate your own electricity
• Install a battery to store energy and become less reliant on the grid
• Access the best tariffs for low-cost, off-peak energy

Optimise your system with smart controls and ongoing performance monitoring.

What Makes Us Different

We're not just another heat pump installer. Here's what sets us apart:

• We design your whole system for comfort, performance, and long-term savings.
  
  
• We’re independent, so we only recommend the right heat pump for your home, not what we have in stock or are contracted to.
  
  
• We don’t believe in “fit and forget”, we support you at every stage of your renewable journey.
  
  
• We help you plan upgrades over time to suit your budget and lifestyle.
  
  
• We offer solar and battery integration when you're ready to go even further.
  
  
• We provide ongoing servicing and maintenance so your system keeps working exactly as it should.

Ready to start?

Whether you’re just starting out or looking to fully future-proof your home, we’ll help you take the first step with confidence.

Get in touch at sales@renewableheat.com. Or call us on 0330 022 0480 to speak with one of our team.