Installer Directory
author

Written-by

Janet Richardson

reviewd-by

Reviewed-by

Richard Burdett

calendar

Updated on

Jan 13, 2026

Read Time : 19 Minutes

How much does an Air Source Heat Pump Cost to Install, Run and Maintain UK?

The UK government is on a big drive to push heat pump technologies. Successive UK policy proposals have discussed reducing reliance on fossil-fuel boilers over time. So, now is not only a good time to ask if a heat pump is right for you, it may also be one of the last chances to take advantage of a generous financial subsidy to make the switch.

Air source heat pumps or ground source heat pumps are a great way to heat your home, and they could be the ideal thing for you. As with all new and greener forms of energy, they can come with a high initial outlay but there are grants that make heat pumps more affordable. It’s important to know what you can expect to spend to have a heat pump installed, but also what is costs to run and maintain the system. 

The costs of heat pump systems can vary significantly between system capacity, manufacturer, and type. This guide will cover all the financial considerations for Air Source Heat Pumps and Ground Source Heat Pump systems.  

COMPARE PRICES FROM LOCAL INSTALLERS

Compare prices from local companies fast & free

Enter your postcode to compare quotes from leading professionals. We promise to keep your information Safe & Secure. Privacy Policy

How much does a Heat Pump Cost in the UK?

Initially, you're probably wondering how they can save you money since heat pumps require electricity to operate which is often around four to five times more expensive per kWh than gas under the price cap (though it varies by region and tariff).

We've all heard that heat pumps are efficient but what does this mean? A simple calculation could be, if you have a system efficiency of 3, in order to generate 9,000kWh of heat, you will require 3,000 units (kWh) of electricity a year, which will cost about £790 if electricity is ~27.7p/kWh (Jan–Mar 2026).

Unfortunately though, it isn't quite that easy because heat pumps are unique in the way they heat a property. Heat pumps are generally designed to operate at a low temperature, to create an ambient heat that warms the house through like a thermal store, and to be on most of the time. So, the simple cost-per-unit figures don't really apply. 

Things to consider that could affect the costs of installing a heat pump. 

  • The type of heat pump you’re planning to install
  • How much research you put in and how shrewd your negotiating skills are
  • Potential grants and incentives
  • Whether you need to upgrade your central heating system
  • Whether you need to install or replace your hot water cylinder
  • If you want your domestic hot water (DHW) on a separate system
  • The size of your home
  • Any insulation improvements needed
  • The brand you want to go with
  • The cost of electricity

It's worth mentioning at this point that although heat pumps are designed to create an ambient temperature, a heat pump will be able to heat your property up to 18-20 degrees Celsius throughout the year, providing it is installed correctly and the property is insulated to a sufficient level. A qualified heating engineer will need to visit your property and perform a heat/loss survey to ascertain its suitability. You can search our directory of approved installers by clicking on this link

In some cases your central heating system will need adjusting. Single radiators or small doubles may need to be changed out in the main living areas and the pipework may need to be upgraded (microbore can reduce flow rates and may limit performance - your survey will confirm whether it needs changing, unless you are choosing a high-temperature design). Wet underfloor heating is optimal but not essential.  

Let’s consider the two most common heat pump variants, air-source, and ground source. 

Air Source Heat Pump Prices, Installed

In the UK, air-sourced heat pump systems are the most common type of installation, and the number is on the rise. Because they don’t need the same preparation, space, or permissions as ground-based systems the prices are better. As a VERY rough guide, you can expect to pay somewhere between £9,000, to £16,000, before grants, depending on how complex the installation is.  This variable equates to stuff like access, scaffolding, the size of your property, whether you’re using existing pipework, changes to the existing central heating system and even how hi-tech your fans and pumps are. You may even need to install a full new central heating system if for example, your property is heated by electric storage heaters. 

While there aren’t ‘high street’ brands in the heat pump world, there are various options for pumps. It all depends on how quiet, unobtrusive, or efficient you want the guts of the system to be. Obviously, high-efficiency, near silent pumps will set you back more than anything off the shelf. Other factors like the size of your property will also matter. More rooms mean more pipework, and radiators, plus more powerful pumps, compressors and the like and more stuff means more cash. 

You will also need to consider your domestic hot water supply. Is your current cylinder or tank compatible with the heat pump or does it need to be changed out? Heat pumps can't always provide domestic hot water exactly when you need it so considering immersion heater as a backup/top-up for domestic hot water (DHW) may be the best option.

Air source heat pumps for the average three or four-bedroom house.

  • Low estimate £7,000 - £9,000
  • Mid estimate £9,000 - £13,000
  • High estimate £13,000 - £16,000

If you want a super quiet Samsung heat pump or something similar, then you can add a few hundred pounds to the overall price. As a rule, when considering our guide, you can assume the following:

  • The low estimate has little to zero additional features.
  • The mid-price estimate has a few potential upgrades.
  • The high estimate includes all the bells and whistles.  

If you do need to add these, expect to pay the following:

  • Adding more radiators £2,000 - £4,000
  • Replacing all the existing pipes and reboring the holes £2,000+

How much do high-temp air source heat pumps cost?

Once again, the actual price will vary depending on the size and location of your home. How much research you do, and your negotiation skills will also play a part in the price. While there may still be grants and subsidies in your area for such an installation you may find those opportunities are harder to find. Still an average UK household will pay between £9,000 and £18,000 for a high-temperature air source heat pump installation. 

As above, it’s worth considering some home improvements to make the most from your system. The same options apply, and the prices will be the same. That said, using a high-temperature air pump system will likely mean there’s less need to install insulation.

How long will an Installation take?

Like an air source heat pump, installing a high-temperature heat pump system can take between two to three days. And don’t forget, while the installation takes place you’ll be without heat and hot water. 

Ground Source Heat Pump Prices, Installed

While not as common as air-source heat pumps, ground-source or geothermal heat pumps are the UK’s second most widely deployed heat pump. The real reason they’re not number one is the extra cost. Ground-source heat pumps require the same infrastructure as their air-source cousins and a whole other underground array. It’s this subterranean network and the effort it takes to lay it that means geothermal systems cost upwards of £20,000. Some larger systems can cost significantly more than that price too. 

Now, the good news is a bit of research can really help you negotiate a decent price and help you find some financial assistance. So, the second two factors are somewhat related. We have dedicated pages to help you find grants and funding for all manner of renewable energy projects including Heat pumps so be sure to check them out. Plus, we cover a lot of this below. 

On the bright side, let’s look at the savings you can expect from your new system. Now, at first glance you won’t see a vast difference in the costs of a heat pump versus a traditional gas boiler. However, if you can remove the need for your gas standing order and better yet, run your heat pump from your own solar power then the savings start to rocket. Removing the gas standing order alone will save you roughly £120–£150 a year for gas standing charges (typical price-cap averages).

A large part of the initial costs for a Ground Source Heat Pump can be the groundworks. As renewable heating engineers are specialist professionals, it can sometimes save money to hire a groundworks company separately, under the direction of your selected installation company. In the case of bore hole-based systems, get a few quotes. Bore holes usually cost around £4,000–£6,000 per hole, and you may need one to three of them depending on system design and ground conditions, so that's a big part of the upfront costs.

GSHPs are widely considered the most efficient heating systems out there, the running costs are generally lower than most other domestic heating options, and for larger homes or businesses, GSHPs can be the best overall solution.

Ground source heat pump for the average three to four-bedroom house:

Horizontal matrix

  • Low estimate £18,000 - £20,000 
  • Mid estimate £20,000 - £25,000
  • High estimate £25,000 - £35,000

Borehole solution

  • Low estimate £20,000 - £25,000 
  • Mid estimate £25,000 - £30,000
  • High estimate £30,000 - £40,000

How long will an Installation take?

Ground source heat pump systems are quite the undertaking. Unlike the other systems they involve a lengthy process. This can take anywhere from two to four weeks depending on access and the size of the installation. As most of the time involves laying the groundwork, the amount of time you’ll be without heating may be shorter than the other installations. 

As with the other systems, it’s worth considering some home improvements to make the most from your system. In particular, insulation is a good investment since ground-source heat pumps work better in well-insulated homes. 

You can always give us a call on 01392 693 900 to discuss your requirements in more detail. 

How much do Heat Pumps cost to run?

Air-source heat pumps cost around the same to run as a conventional mains gas boiler. Although an ASHP system is very efficient, they usually run at 300% efficiency, mains gas is typically around four to five times cheaper per kWh under the price cap, though this varies by tariff and region. A modern gas boiler is likely to be approx. the same cost to run per annum as an air-source heat pump but if you're replacing an old inefficient gas boiler than the annual running costs could be significant.

Also, if you have solar panels, one generates electricity and the other one uses it. Not the perfect marriage as you need the heating in the winter when the days are shorter and darker but solar panels will still help lower your heating bills when making the switch to an ASHP. 

The table below gives you a rough idea of the amount of money you could save by installing an air or ground source heat pump. There's a huge number of variables involved, which makes providing an accurate projection of costs and savings difficult.
For exp. A ground-source heat pump is often a much better choice for a large property that spends a lot on LPG or oil. If you're spending £3,000 PA on oil then the annual savings of a GSHP can be much more significant. 

System type System cost ** Energy source being replaced Annual approx. running costs Annual saving *** Break-even point
Air-source £6,500 Oil £1,400 £600 10.8 years
Air-source £6,500 LPG £1,400 £800 8.1 years
Ground source £17,500 Oil £1,050 £950 18.4 years
Ground source £17,500 Liquid gas LPG £1,050 £1,150 15.2 years

*  These figures assume that a property has loft and wall cavity insulation and double glazed windows. They assume that the property has two floors, around 90 square meters of floor area, and, in the case of ground source heat pumps, around 180 square meters of available outside space for the installation of tubing.

** These figures assumed that the property received the Boiler Upgrade Scheme which is £7,500 off the initial cost (England and Wales). We assume that the average cost of installing an air-source heat pump is £14,000 and the average cost of a GSHP was £25,000. The initial upfront cost of an ASHP for a standard residential property in the UK can be between £2,000 and £10,000 after receiving the BUS. 

*** We assumed that the running costs of an air-source heat pump and ground-source heat pump in the UK are typically £1,000–£1,400 PA. The running costs can vary between approx. £650 to £1,500, based on a 3–4 bedroom residential property.

Thermal Battery or Hot Water Cylinder Costs

Unlike traditional central heating, air-source heat pumps don’t provide instant hot water. If you feel this is a deal-breaker you may want to invest in some thermal storage. A hot water cylinder is the cheapest option and should set you back around £700. Meanwhile, complete thermal storage units come in anywhere between £2,000 to £3,000+.

Your current hot water cylinder may be compatible and it's worth noting that most heat pump quotes will include a domestic hot water solution or hot water cylinder. 

Insulation Costs

It’s a no-brainer that insulated houses are easier and cheaper to heat. Heat pumps are not combustion boilers, they are designed to operate at a lower temperature to create an ambient warmth that heats your house through and keeps it warm. Due to this the property has to have a certain level of energy efficiency.

To start with, you will generally need the property to have double glazing or some pretty good secondary glazing. Prices for double glazing vary dramatically so make sure you shop around.

Secondly, ensure your loft is well insulated. This is the cheapest and most effective measure you can take to improve the energy efficiency of your home anyway and is well worth doing. Loft insulation can cost as little as £400–£500, depending on the size of the property and access.

Insulating walls can be a bit trickier. If there's a cavity then get a good insulation company in to quote. Alternatively, if you are worried about dampness, book in a chartered surveyor to provide an unbiased appraisal. Internal or external wall insulation is an option if there are no cavity walls, both effective options but it does get a bit complicated. We have a whole section on insulation here.  

If you need additional insulation, you can add the following costs: 

  • Wall cavity insulation £1,200 - £1,800.
  • Upgraded floor insulation £2,500 - £4,000.
  • Roof insulation (by roll) £1,500 - £2,500.

In order to receive the government's Boiler Upgrade Scheme you will need an Energy Performance Certificate (EPC). These are usually only carried out when you're thinking of selling your house and cost around £80–£120. You can find an EPC assessor by searching online. An EPC will tell you what energy efficiency measures you can take to improve your home. Prior to May 8th 2024, in order to receive the BUS you had to have no advisories for cavity insulation or loft insulation. This meant that if your external walls were of a cavity construction, you would need to have it filled (unless you can prove it isn't beneficial) and if there was less than 200mm loft insulation, it will have to be topped up. Current building regs for loft insulation recommend 300mm.

Although the government still advises that properties should be appropriately insulated, as of May 8th 2024, homeowners NO LONGER need to install cavity wall or loft insulation to be eligible for the Boiler Upgrade scheme (BUS) grant. 

Heat Pump Grants and Funding Schemes for England and Wales

The UK government, like most UN countries, has pledged to achieve NET ZERO carbon emissions by 2050. In their quest, the government has spotted the potential heat pumps offer to reduce national emissions. The upshot of this is a huge nationwide drive to promote heat pump technology. To get the ball rolling, they’ve introduced sweeping incentives, subsidies, and grants across both the domestic and commercial sectors. Here, we’ll focus on the schemes aimed at the domestic market.  

Boiler Upgrade Scheme (BUS)

Eligible households in England and Wales can now apply for grants of £7,500 to replace an existing electric, mains gas, LPG or oil boiler for a heat pump system or a biomass boiler. 

The BUS grant is limited to one per property and householders can claim either £7,500 for an air source heat pump, £7,500 for a ground source heat pump (this includes water source heat pumps or heat pumps that share a ground loop), or £5,000 for a biomass boiler. 

  • Air source heat pump - £7,500
  • Ground source heat pump (including water source) - £7,500
  • Biomass boiler systems - £5,000

Only true heat pump systems are eligible for grants. So, be careful if you choose a hybrid heat pump system that also has a gas boiler as it won’t count. 

Other criteria include minimum efficiency standards and there’s a cap on systems with a capacity over 45kWth. You’ll also need a current Energy Performance Certificate (EPC), however, on May 8th 2024 the Government dropped the required criteria for insulation. Before to this date, a property would need to have 200mm+ loft insulation and if the external walls were a cavity, the cavity would need to be insulated. If you would like to know more about these changes, click here.    

BUS is available for both domestic and non-domestic properties, but there are some exclusions. Social housing properties don’t count and neither do new builds (Unless it's a self build). There are also some restrictions on properties receiving other energy support. For example, properties that benefited from the Government’s Energy Comiment Obligation ECO funding. 

In Scotland, there is a similar grant system called Warmer Homes Scotland. There are also additional funds of up to £9,000 total available for those living in particularly rural areas. Scottish residents can also apply for interest-free loans to cover the entire cost of an installation. The cap on these loans is £15,000. 

Click here to read our full guide to the Boiler Upgrade Scheme (BUS) for heat pumps. 

ECO4 

*The ECO4 Scheme will be closing to new applicants from March 31st 2026.
Now in its fourth iteration, the Government’s Energy Commitment Obligation (ECO4) provides assistance for low-income families and those in living in homes with poor energy efficiency. To qualify for the program, you’ll need to earn under £31,000 a year and be in receipt of one of the following benefits. 

  • Income-based Job Seekers Allowance
  • Working Tax Credit
  • Child Tax Credit
  • Pension Credit Savings Credit
  • Child Benefit 
  • Universal Credit
  • Housing Benefit
  • Income-related Employment and Support Allowance
  • Income Support
  • Pension Credit Guarantee Credit

In addition to the above criteria, you’ll need to live in a house with an EPC rating of E (sometimes D) or lower. 
If you qualify, the Government will instruct an energy provider to upgrade your heating system. This can include installing a new heat pump system. Unlike other schemes there is no cash payout, the authorities deal directly with the energy provider.   

HUG2

The Home Upgrade Grant is a local authority-provided scheme to help households with poor energy efficiency, low incomes, or inaccessible locations.  The funding comes from central government, but it’s up to your local council how to implement it.  Because the cash is distributed on an ad hoc basis there are no clear rules about how much is available, but as a guide it’s not uncommon for households to pick up anything from £10000 to £25000 depending on the project. As the Home Upgrade Grant is squarely aimed at energy efficiency there’s a good chance they’ll cover the installation of a heat pump.   

Heat Pump Grants and Funding Schemes for Scotland

Warmer Homes Scotland Programme

Scotland’s main grant for warm homes is the Warmer Homes Scotland programme, a government funded scheme managed by Warmworks Scotland and accessible via Home Energy Scotland. The programme is designed to help people who are struggling to pay their bills and to make their homes warmer by offering them significant financial support worth £10,000+ for energy-saving home improvements. If you are eligible, the programme aims to change the way you use energy to help lower your bills as well as provide grants for home improvements such as insulation, draught-proofing, heating, and renewables (heat pumps). The improvements offered will depend on a survey of the property. Assessors will visit your home to conduct a survey that will identify which improvements are recommended and if they can be funded.

How to Apply

You can either call Home Energy Scotland on 0808 808 2282, visit their website or use their online self-assessment tool to see if you're likely to be eligible. Completing the Warmer Homes Scotland self-assessment form does not guarantee that your application will be successful. All applications are subject to meeting the programme’s eligibility criteria and the availability of Scottish Government funding.

One of Home Energy Scotland’s friendly advisors can guide you through the process to check if you’re likely to be eligible. If it looks like you are, they will make an appointment for a Warmworks assessor to visit your home to do a survey. The assessor will check each room including any loft spaces to determine what energy saving improvements are right for you. Any work that you are eligible for is carried out by approved installers and funding is directly managed. If you choose to have the work undertaken between speaking to Home Energy Scotland and Warmworks carrying out an assessment of your property, your eligibility for the grant may be affected. You cannot get funding for work that's already completed. It’s also important to know that all home improvements funded by Warmer Homes Scotland must be delivered by Warmworks-approved installers. Warmworks will also keep in regular contact with you about your application and its progress.

Who is Eligible?

  • You must be a homeowner or a private sector tenant (not a council or housing association tenant).
  • You must live in Scotland, and the property must be your main home.
  • Your home must have a poor energy rating (EPC) usually D, E, F or G. Warmworks will assess this.
  • Your total household income must be £36,000 a year or less or you receive a means-tested benefit.
  • You must have lived in the property for at least 6 months unless you have a terminal illness form such as SR1/DS1500/BASRiS
  • Your home must have a floor area which is 230m2 or less (typically up to five bedrooms).
  • Your home must meet the tolerable living standard set out in the Housing (Scotland) Act 2006 or, where the home does not meet the tolerable living standard, this will not impact the effectiveness of the recommended improvements for installation under the programme.
  • Your home must be fit for upgrades. Warmworks will check this at the survey stage.
  • Your property must be fit to live in and meet Scotland’s tolerable standard.
  • Eligible households must include either a person who is aged over 75 with no central heating, a person who has a DS1500 or BASRiS certificate completed by a medical professional, or a person who receives at least one of the passport benefits (see below) at any level or rate at which the benefit is paid.

These criteria may change from time to time.

Passport Benefits

  • Adult Disability Payment
  • Armed Forces Independence Payment
  • Attendance Allowance
  • Carer’s Allowance
  • Carer Support Payment
  • Constant Attendance Allowance
  • Council Tax Reduction (excluding 25% discount eg students or single persons)
  • Scottish Child Payment
  • Child Disability Payment
  • Child Tax Credit
  • Disability Living Allowance
  • Scottish Adult Disability Living Allowance
  • Housing Benefit
  • Income Support
  • Income-based Jobseeker’s Allowance (JSA)
  • Income-related Employment and Support Allowance (ESA)
  • Industrial Injuries Disablement Benefits
  • Pension Age Disability Payment
  • Pension Credit - Guarantee. You will not be eligible if you receive only Pension Credit - Savings
  • Personal Independence Payment (PIP)
  • Severe Disablement Allowance
  • Universal Credit
  • War Pensions Mobility Supplement
  • Working Tax Credit

The passport benefits listed above may change from time to time.

Further criteria if you rent privately

  • If you’re a private sector tenant, Warmworks will need your landlord's permission before any energy-saving home improvements can be installed.
  • If the landlord is legally required to repair or provide an upgrade under the Repairing Standard, that particular measure cannot be funded by the scheme though you may still qualify for other improvements. Home Energy Scotland can guide you on this.

Potential improvements available

There are more than forty potential measures available including:

  • Wall insulation
  • Loft insulation
  • Draught-proofing
  • Central heating (including electric storage heater, new gas boiler, or air source heat pump)
  • Boiler upgrade
  • Ground source heat pumps
  • Renewable and micro-renewable heating system

Although in most cases the Scottish government will meet all the costs for your improvements, there are some rare cases, when you may need to pay for some of the costs. If so, you can apply for an interest-free loan to help you meet the costs. The loan is managed by Energy Saving Trust for the Scottish Government, is subject to a credit check, and includes an administration fee. Warmworks will let you know if you need to contribute to the costs.

Home Energy Scotland Grant and Loan Scheme

The Home Energy Scotland Grant and Loan Scheme can provide homeowners in Scotland with a grant, an interest free loan or a combination of them both to install clean heating systems and energy efficiency measures.

The scheme offers grants and loans for heating systems such as heat pumps and heat network connections. Grant funding of up to £7,500 is available with an additional £7,500 of funding available as an optional interest free loan. It also offers grant funding for energy efficiency measures such as insulation. Grant funding is available up to 75% of the combined cost of measures up to a maximum grant of £7,500. The rest of the funding requested can be taken up as an optional interest-free loan up to the maximum funding limit per improvement.

An uplift of £1,500 is available for rural and island homes to both the heating and energy efficiency grants which means that rural households can claim up to £18,000 in grant funding.

Eligibility Criteria

  • Your home must be an existing property in Scotland, and you must be the homeowner. The property must be the home you live in, so your only or primary residence.
  • You do not need to be in receipt of any benefits to qualify for the Home Energy Scotland Grant and Loan Scheme.
  • Only heat pumps that provide 100% of heating and hot water requirements are eligible for funding.
  • Hybrid heat pumps are not eligible for funding.
  • The grant/loan does not support non-automated, non-pellet stoves or room heaters. If installing a renewables system, you must use both a Microgeneration Certification Scheme (MCS) installer, and a MCS or Solar-Keymark certified product, except for micro-hydro systems which will be assessed on a case-by-case basis. It is recommended that you seek advice from SEPA and use an installer recommended by the British Hydro Association that is also a member of the Renewables Energy Consumer Code (RECC) or equivalent.

Potential Measures available

Some of these measures are only eligible for either loans or grants while some are eligible for both.

  • Air/ground/water to water source heat pumps
  • Heat network connection
  • Solar thermal
  • Hybrid solar PV / water heating
  • Wood fuelled (biomass) boilers (and eligible stoves)
  • Wind turbine
  • Hydro turbine

Primary improvements available for energy efficiency

Some of these improvements are only eligible for either loans or grants while some are eligible for both.

  • Solid wall insulation (external and internal)
  • Flat roof or room-in-roof insulation
  • Loft, cavity and underfloor insulation
  • Insulated doors
  • High heat retention storage heaters
  • Warm air units
  • Double glazing, triple glazing, secondary glazing

Secondary improvements available for energy efficiency

  • Cylinder thermostat, draught proofing, wastewater heat recovery system, hot water tank jacket
  • Heating controls

Further Criteria

Double, triple, or secondary glazing is only available for improving single glazing and cannot be used to replace or improve existing double, triple, or secondary glazing.

If double or triple glazing is recommended but the applicant can only afford secondary glazing, Home Energy Scotland will accept an application for secondary glazing, but the applicant must provide a cover letter with their application explaining this.

Secondary improvements are only eligible if combined with an application for a primary improvement or renewable technology.

How to apply

You apply by contacting Home Energy Scotland via phone, contact form or WhatsApp. They are open to enquiries on 0808 808 2282 from Monday to Friday 8am to 8pm and Saturday 9am to 5pm. An adviser from Home Energy Scotland will be in touch with you to ask questions about you and your home and to discuss what support you are eligible for. The adviser will then send you a link to a personalised application form for you to fill in.

Funding is allocated on a first-come, first-served basis and is subject to availability. Funding is reserved for householders once they have received a written funding offer not when they apply to the scheme.  The Scottish Government reserves the right to change the terms and conditions of the scheme, including the eligible improvements, as required. Schemes are subject to the availability of budget.

Home Energy Scotland aims to process applications within ten working days of receiving a fully complete application. They may have to delay funding offers if any of the supporting documentation is missing or incomplete, or where they need to ask for clarification.  They will send you up to three reminders to supply missing or incomplete information. If they do not receive a response to these reminders, the application will expire.

Work must not begin until the householder has received a written funding offer from Home Energy Scotland.

If the householder’s application is successful, they must get a post-installation Energy Performance Certificate (EPC) and submit it with your claim for funding to confirm the work has been completed. Payments are made within 10 working days of receiving a fully complete claim plus an additional 3-5 working days for the BACS transfer.

Funding agreements are valid for nine months.

Private Rented Sector Landlord Loan

The Home Energy Scotland Grant and Loan Scheme is not available to private landlords.

However, landlords can apply for the Private Sector Landlord Loan (PRSL), a Scottish government scheme for registering landlords to improve their rental properties' energy efficiency with measures like insulation, new heating systems (heat pumps, electric storage heaters), and renewables. The aim is for private properties to meet new standards and for energy bills to be reduced. Loans of up to £250,000 are available, often interest free or at low interest rates (e.g., 3.5% or 5% APR) for larger portfolios (over 5 properties). Up to a £15,000 loan is allowed per property for energy efficiency, with higher caps for larger portfolios (up to £250,000 total). The scheme is administered by Home Energy Scotland who can provide advice and support. Measures often need to be installed by TrustMark or MCS-certified installers.

Eligibility criteria

  • The scheme is open to registered private landlords for domestic properties listed on the Scottish Landlord Register.

Potential Measures Available

  • Insulation: Solid wall, loft, floor, room-in-roof, flat roof, and insulated doors.
  • Heating: Warm air units, high heat retention electric storage heaters, heat pumps, biomass boilers.
  • Renewables: Solar PV, solar water heating, energy storage systems, micro-hydro.
  • Other: Connecting to district heating, gas connections.

How to apply

Landlords can apply through Home Energy Scotland to get an interest-free loan (or low-interest loan) to cover the costs of upgrades, helping them meet future energy performance targets and making their properties more attractive and affordable.

Energy Efficient Scotland: Area Based Schemes (EES: ABS)

These schemes are Scottish government-funded, local council-led programmes created to tackle fuel poverty and improve the energy efficiency of homes.

These initiatives focus on areas with high levels of fuel poverty to deliver energy efficiency improvements, primarily insulation, at scale. To deliver these projects local councils frequently partner with organisations such as Changeworks, which acts as the largest delivery agent for EES: ABS. Other partners include Scarf.

Potential measures available

The schemes largely target hard-to-treat properties.

  • Solid wall insulation, cavity wall insulation
  • Loft insulation
  • Room-in-roof insulation,
  • Air source heat pumps
  • Solar panels
  • Battery storage

Eligibility Criteria

  • You cannot usually apply for these schemes.
  • Households are identified and contacted directly (pre-notified) based on data analysis, including Energy Performance Certificate (EPC) ratings, the Scottish Index of Multiple Deprivation (SIMD), and fuel poverty statistics. If selected, homeowners may be eligible for grants or heavily discounted improvements, often with additional funding available through Home Energy Scotland for those in extreme fuel poverty.

Finance Options for Heat Pumps in the UK

A factor to consider when pricing your system is the cost of any credit payments you’ll need to make.  Obviously, if you have the money, you can ignore credit and any subsequent costs. Sure, you may find some suppliers offering interest-free payments. Even with this option though, you may lose some capital to inflation. 

There are several companies offering finance for heat pump systems in the United Kingdom. Finance, in the form of loans and leasing agreements, is available for domestic, commercial, and industrial installations, in both the private and public sectors. Finance for renewable energy technologies allows customers to avoid large upfront costs and make payments out of the income earned from Feed-in tariffs (now referred to as Smart Export Guarantee (SEG)), as well as energy bill savings. Finance may be offered on a range of bases, each offering varying levels of financial risk and reward, as well as varying interest rates.

Typically, the finance company will provide the renewable energy technology and the cost of installation in return for payments spread over a period of time. Depending on the type of agreement, the client may either come to own the technology at the end of the period, it may be sold by the company with the proceeds being split between client and company, or the company could retain it. The arrangements offered by finance companies will vary, however, and each company will offer different advice.

It is therefore advisable to obtain quotes and agreement terms from a range of companies, based on a client's energy needs and financial situation. Caution should also be taken when calculating one’s ability to make repayments, as the returns offered by some renewable technologies depend in large part on the weather. 

How much do Air Source and Ground Source Heat Pumps cost to run?

Before we start let’s consider that a traditional gas boiler operates at a 90/95% efficiency. However, an air source heat pump system can operate at around 300% efficiency (COP ~3) compared with around 90% for a modern gas boiler. If this sounds confusing, this is because despite being three times more efficient than traditional mains gas boilers, the savings from using a heat pump system, can be modest rather than dramatic since gas is typically around four to five times cheaper per unit than electricity under the price cap.

Air source heat pumps in the UK typically have a coefficient of performance (COP) of around 3, meaning they produce 3 kWh of heat per kWh of electricity used. At around £0.27 per kWh (price-cap ballpark early 2026, varies by region/tariff), this equates to ~£0.09 per kWh of heat produced. This said, the COP wont always be 3, this is because the efficiency of the heat pump will drop when the outside temperature drops. Most modern heat pumps will actually perform at COP of around ~2 or higher in cold weather depending on model and system design, but performance varies and can drop further in harsher conditions.

Therefore, annual running costs for ASHPs generally range from around £900 to £1,920.

What about ground source heat pumps?

With air source systems offering up to 300% - 400% more efficiency than fossil fuel boilers what can ground source systems do? Ground source heat pumps often operate at efficiencies equivalent to a COP of around 4. Making them four times as efficient. However, it may surprise you to know that even at those levels of efficiency, you might not see much of a return on investment if you're replacing a modern efficient gas boiler.

That said, if you're replacing an old inefficient gas boiler, an electric boiler, oil boiler or an LPG boiler then the savings on your energy bills can be high. 

Ground source heat pumps usually have a COP of 3.5 to 4.5 throughout the year due to the temperature of the ground not varying as much as the temperature of the air in winter. So they produce 4 kWh of heat per kWh of electricity, costing ~£0.06–£0.08 per kWh of heat depending on your unit rate.

Annual running costs for GSHPs are typically £720 to £1,440 but in both cases, this will depend on the property's heat demand.

Maintenance Costs?

Heat pumps will typically come with a warranty that lasts three or five years. The workmanship warranties for heat pumps, however, can last for up to ten years through things like the QANW (Quality Assured National Warranties). Extensions are sometimes available, but terms and costs vary. The system will require regularly scheduled maintenance. An annual check by you, followed by a detailed check by a professional installer every three to five years tends to be more than enough. The installer should leave you with written details noting any maintenance checks that you should expect to undertake at any given point to ensure that everything is running smoothly and correctly.

You should always talk to your supplier for the exact maintenance requirements before you decide to commit to the purchase. It is very likely that you will be asked to carry out a yearly check on things like the air inlet grill and evaporator – just to make sure they are free of leaves and debris. You will also have to remove any plants that have started growing there.

Your installer may take steps to advise you about checking the central heating pressure gauge in your home from time to time. If this is the case, you should be shown how to do this, so make sure you ensure your installer follows through. This is to prevent the heat pump from freezing in the winter weather by using anti-freeze. The levels of anti-freeze concentration are something that the installer will take the time to check when he comes to your home to service your pump. If your heat pump has external refrigeration pipes (very uncommon), they will require an annual service from a refrigeration engineer.

So, will Heat Pumps save you money?

If you are replacing a modern gas boiler there can be a modest or marginal reduction in your annual heating bill by using a heat pump. This will depend on how you use your heating, the central heating system you have, the capacity of the heat pump you install and some other factors. However, if you can remove gas altogether, you can also save another approx. £120 - £150 from your annual gas standing order. If you're switching from an oil, LPG or electric boiler, the savings can be significant. Remember though, it’s not all about cash, you're future proofing. With the government talking about the end of gas boilers and potential carbon taxes, a heat pump can put value on your property and protect you from incoming legislation.

It’s nice to save some money and heat pumps create an ambient heat which is more comfortable and arguably healthier for you, but where heat pumps really excel is in the reduction of emissions. Heat pumps produce zero emissions at point of use and that’s a saving everyone can get behind. But why do they cost the same if heat pumps are more efficient? The reason is simple. Gas costs less per unit than the equivalent unit of electricity.

If you’ve done the maths, you’ll have worked out the difference equates to about four to five times the cost. Of course, there’s an obvious workaround and this is where heat pumps really start to make sense. Imagine for a second you could power your heat pump with electricity you generate yourself. Although it's not the perfect marriage, obviously you need the heating in the winter when the days are shorter and darker, but solar panels will help towards the running costs of a heat pump. To find out more about solar installation check out our guides here.

If you're replacing an electric boiler, oil boiler or LPG boiler then the return on investment for an ASHP or GSHP becomes much more attractive. The tech will often largely pay for itself over time. 

Contact us or one of our approved installers for further information or quotation. 

Figures and examples in this article are provided for illustrative purposes only and should not be treated as guaranteed savings or performance outcomes.

 

Find a local installer

Welcome to the biggest directory of UK renewable energy companies

image

Related Articles

The Warm Homes Plan was initially outlined and funded in 2025 policy documents but was formally...

Heat pumps are becoming increasingly popular in the UK although they are still not as widely ad...

This article is intended for UK homeowners and building professionals researching high-temperat...

To understand heat pumps we need to know a little about the laws of thermodynamics. Don’t worry...

Heat pumps are becoming increasingly popular as a way to heat, and in some cases cool our homes...

What is Ground Source Heating? Ground source heating is one of the best options available wh...

What are Air Source Heat Pumps? Air source heat pumps work because of a phenomenon called he...

Air source heat pumps can be a fantastic way to generate heat for your home but there are some...

If you have found yourself interested in investing in a heat pump for your home or business, th...

The installation of both air-source and ground-source heat pumps require careful planning, prof...

Compared to other forms of heating, a ground source heat pump (GSHP) or geothermal heat pump re...

This article is out of date and is here purely for historical reference. Please click this link...

Find a local installer

Welcome to the biggest directory of UK renewable energy companies

Or

COMPARE PRICES FROM LOCAL INSTALLERS

Compare prices from local companies fast & free

Enter your postcode to compare quotes from leading professionals. We promise to keep your information Safe & Secure.

Privacy Policy
Contact
Contact Us

We keep your information Safe & Secure. Privacy Policy

What technology are you looking to install?
What do you require?
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
logo
Before you go... Can we help you with anything?

Leave your details and we'll contact you to discuss your requirements

We keep your information Safe & Secure. Privacy Policy

x
logo

quick and free price comparison for solar or heat pumps

We keep your information Safe & Secure. Privacy Policy