Beyond government grants, your mortgage could be a powerful tool in funding your home's transition to a greener, more energy-efficient future. Many leading UK lenders are now offering "green mortgages" and attractive cashback schemes designed to incentivise eco-friendly home improvements, including the installation of heat pumps. These incentives can come in various forms, such as lower interest rates, direct cashback payments, or even interest-free additional borrowing options.
The driving force behind these offerings is clear: to reduce carbon emissions from the housing stock, lower energy bills for homeowners, and potentially increase your property's value by enhancing its energy performance. Many of these schemes are intrinsically linked to your property's Energy Performance Certificate (EPC) rating, often requiring an A or B rating, or mandating specific energy-efficient improvements to qualify.2 This growing emphasis on EPC ratings signifies the increasing importance of property energy efficiency as a financial asset, potentially driving a broader trend where homes with higher EPC ratings command better financial terms and valuations.
At James Hargreaves, we're here to help you navigate this exciting landscape. Below, we've compiled a comprehensive overview of key UK mortgage lenders and their green home improvement incentives, specifically highlighting those relevant to heat pump installations.
UK Mortgage Lenders Offering Heat Pump Incentives (Overview)
Lender
Scheme Name
Incentive Type
Max Heat Pump Incentive
Key Eligibility Note
Barclays
Greener Home Reward
Cashback
£2,000
Existing residential mortgage with Barclays; MCS/TrustMark installer required.
Halifax
Green Living Reward
Cashback
£2,000
Halifax current account required; residential mortgage customer.
Lloyds Bank
Eco Home Reward
Cashback
£2,000
Club Lloyds current account required; residential mortgage customer.
Virgin Money
Green Reward / Retrofit Boost
Cashback
£250
Existing mortgage; requires minimum £2,500 additional borrowing for improvements.
Nationwide
0% Interest Green Add. Borrowing
0% Additional Borrowing
£5,000 - £20,000
Existing Nationwide mortgage; 100% of loan for eligible improvements.
Santander
Greener Homes Scheme
Cashback
£1,000
Existing mortgage/current account; min £5k additional loan; must use trusted partner.
HSBC
Energy Efficient Homes Cashback
Cashback / Lower Rate
Up to £1,500
For A/B EPC properties (purchase/remortgage); no direct improvement cashback.
NatWest
Green Mortgages
Lower Interest Rate
N/A
For A/B EPC properties (purchase/remortgage); additional borrowing for improvements.
Coventry Building Society
Green Additional Borrowing
Additional Borrowing
Up to £25,000
Existing mortgage (6+ months); 50% of loan for energy efficiency.
Detailed Lender-Specific Schemes
The varying eligibility criteria and application processes across different lenders highlight the importance of understanding each scheme's specifics. This detailed breakdown aims to simplify your decision-making process.
Barclays: Greener Home Reward
Incentive: Barclays offers a "Greener Home Reward" providing up to £2,000 cashback specifically for heat pump installations. They also provide lower interest rates for new-build homes with an A or B EPC rating.
Eligibility: You must hold an eligible residential mortgage with Barclays, have a Direct Debit for mortgage payments, be up to date on payments, not be in breach of mortgage conditions, and not have claimed the reward previously. The cost of the eligible work, excluding any third-party contributions like government grants, must be equal to or exceed the reward value. Only one reward is available per residential property. You don't need to borrow more money from Barclays to be eligible.
Application Process: Home improvements must be completed by a TrustMark-registered or MCS-certified installer. You should submit the claim form online within three months from the invoice or payment date. If approved, proof of work and payment documents must be submitted within one month. The reward is typically paid within four weeks of claim approval.
Other Eligible Improvements: The scheme also covers insulation (£500-£1,000), doors and windows (£500), and solar energy installations (£1,000).
Halifax: Green Living Reward
Incentive: Halifax's "Green Living Reward" scheme offers up to £2,000 cashback for heat pump installations.1 Other incentives include £1,000 cashback for solar panels or a battery, and £500 for other energy-efficient home improvements. Additionally, Halifax provides £250 cashback for purchasing or remortgaging a property with an A or B EPC rating.
Eligibility: A Halifax current account is required at the point of claim. The eligible home improvement must be completed within one year of completing a Halifax mortgage, further advance, or product transfer. The offer is exclusively for residential customers. Only one cashback amount is available per mortgage product.
Application Process: You must upload your invoice to their "Green Living journey" platform and submit your claim. A free Energy Performance Certificate (EPC) is offered after a successful claim. While you can use your own installers, Halifax partners (e.g., Octopus Energy, Effective Home) may offer additional discounts.
Lloyds Bank: Eco Home Reward
Incentive: The "Eco Home Reward" from Lloyds Bank provides up to £2,000 cashback for heat pump installations. It also offers £1,000 for solar panels or a battery, and £500 for other upgrades. For properties with an A or B EPC rating, a £250 cashback is available upon purchase or remortgage.
Eligibility: Applicants must have received a mortgage illustration as part of their full mortgage application process after July 31, 2024. The eligible improvement must be completed within one year of mortgage completion, additional borrowing, or a new deal. This offer is for residential customers only and requires a Club Lloyds current account at the time of claim.
Application Process: The final invoice must be uploaded to the "Eco Home Reward" platform to submit a claim. A free EPC is provided after a successful claim. Partners like Effective Home are MCS accredited and may offer discounts. You are advised to check eligibility before commencing any work.
Virgin Money: Green Reward / Retrofit Boost
Incentive: Virgin Money offers a £250 cashback through its "Green Reward" scheme when customers spend at least £2,500 on qualifying green home improvements, including heat pumps. They also provide lower interest rates for new-build properties with an A or B EPC rating.
Eligibility: This scheme is available to existing Virgin Money residential or buy-to-let mortgage customers. Crucially, customers must apply for additional borrowing on their existing mortgage to fund the improvements, with a minimum spend of £2,500 on eligible green upgrades.
Application Process: Customers must apply for additional borrowing by May 31, 2025, register their planned improvements online by June 30, 2025, and claim their cashback by December 31, 2025, by emailing proof of completed work (e.g., receipt or invoice). Extensions to the claim period are possible if improvements are delayed.
Nationwide: 0% Interest Green Additional Borrowing Mortgage
Incentive: Nationwide offers a unique 0% interest Green Additional Borrowing mortgage, allowing existing members to borrow between £5,000 and £20,000 at 0% interest for the first 2 or 5 years. They also provide £250-£500 cashback for properties with an A or B EPC rating.
Eligibility: Applicants must be existing Nationwide mortgage members who have made at least one monthly payment. A critical condition is that 100% of the additional borrowing must be used for eligible energy-efficient home improvements, including air source heat pumps. The combined mortgage and additional borrowing must not exceed 90% Loan-to-Value (LTV).
Application Process: Applications are made by contacting Nationwide mortgage advisers by phone or video call. There are no product fees associated with this mortgage. After the 0% interest period concludes, any outstanding amount will revert to Nationwide's variable Standard Mortgage Rate (SMR), or customers may switch to another rate. Only one Green Additional Borrowing mortgage is permitted per property.
Santander: Greener Homes Scheme
Incentive: Santander's "Greener Homes Scheme" offers £1,000 cashback for energy-efficient home improvements, including heat pumps. They also provide lower interest rates for properties with an A or B EPC rating.
Eligibility: Applicants must be existing Santander mortgage or personal current account customers. A minimum additional loan of £5,000 on an existing mortgage or a personal loan from Santander is required to cover the work. The improvements must be completed through one of Santander's trusted partners, and the work must be finished by September 30, 2025.
Application Process: You should obtain quotes from Santander's trusted partners (e.g., Octopus Energy, ScottishPower, Fusion8, MakeMyHouseGreen). After knowing the cost, you can apply for the additional loan. Cashback is paid within 10 business days of the supplier confirming the work is complete. Only one cashback payment is available per household.
HSBC: Energy Efficient Homes Cashback Mortgage
Incentive: HSBC offers up to £750 cashback for customers purchasing or remortgaging a home with an A or B EPC rating. Cashback amounts can vary significantly based on Loan-to-Value (LTV) and fixed term, potentially reaching up to £1,500 for a 95% LTV 5-year fixed mortgage.
Eligibility: The property must have an in-date EPC or Predicted Energy Assessment (PEA) with an A or B rating. This scheme is available for first-time buyers, home movers, or those remortgaging to HSBC.
Application Process: Applicants can begin by applying for an Agreement in Principle. It is important to note that this scheme primarily incentivises the existing energy efficiency of a property rather than providing direct cashback for new improvements like heat pump installations.
NatWest: Green Mortgages
Incentive: NatWest's Green Mortgages offer lower interest rates on 2-year or 5-year fixed-rate mortgages for properties with an A or B EPC rating. For additional borrowing, at least half of the loan must be spent on green home improvements, which include heat pumps.
Eligibility: The scheme is available for purchasing or remortgaging a home with a valid A or B EPC. A maximum LTV of 85% applies.
Application Process: Homeowners can use NatWest's "Agreement in Principle" tool to get a personalised indication of borrowing capacity and compare rates. NatWest also provides a comprehensive heat pump guide to assist customers.
Coventry Building Society: Green Additional Borrowing
Incentive: Coventry Building Society offers Green Additional Borrowing, allowing customers to borrow up to £25,000. This product is offered on a fixed rate with no product fee.
Eligibility: Applicants must have an existing residential or Buy-to-Let mortgage with Coventry Building Society for at least six months, having made six consecutive monthly payments. At least 50% of the borrowed amount must be spent on energy efficiency improvements, including heating and energy installations.
Application Process: Homeowners are advised to obtain at least three quotes for the work. Applications for the further advance are made by phone, and the quotes (on headed paper, detailing labour and materials) are required for approval. The society recommends using TrustMark Registered Businesses for the work.
The prevalence of EPC A/B ratings as a qualification criterion for many green mortgages highlights the growing importance of property energy efficiency as a financial asset. This trend could drive a broader shift in the housing market, where homes with higher EPC ratings command better financial terms and potentially higher valuations.
Information is correct as of July 1st 2025, but schemes can change or be withdrawn by lenders or the government at any time. Homeowners should always verify the latest terms directly with providers.
At James Hargreaves, we're here to help you navigate these opportunities. From assessing your eligibility for grants to guiding you through the best heat pump solutions for your home, we're your trusted partner in making a greener, more affordable future a reality.
Infographic: Funding Your UK Home Heat Pump
Unlock Thousands for Your Green Home
Discover how UK homeowners can now access substantial grants and bank rewards to fund a new, energy-efficient heat pump.
Potential Total Savings
£9,500
By combining government grants and bank offers.
The Foundation: Government Grants
The UK government provides a significant head start for homeowners in England & Wales with the Boiler Upgrade Scheme (BUS).
Boiler Upgrade Scheme Grant (ASHP/GSHP)
£7,500
A direct, upfront reduction on the cost of your heat pump installation, applied for by your installer.
Plus! Benefit from the **0% VAT cut** on energy-saving materials!
How to Get Your Grant: 4 Key Steps
1
Check Eligibility
Ensure your property in England or Wales qualifies. **Self-builds are eligible!**
2
Find an MCS Certified Installer
This is mandatory for grant eligibility. They are your gateway to the funding.
3
Get a Quote
The installer will confirm the system and costs.
4
Installer Applies for You
The £7,500 grant is deducted directly from your invoice.
Regional Note: Scotland offers grants & loans via Home Energy Scotland. Northern Ireland has RHI & other upgrade schemes. Schemes vary by nation.
Boost Your Savings with Bank Incentives
Major UK banks are now rewarding their mortgage customers for making green home improvements, including heat pump installations.
The chart above compares the maximum potential rewards offered by major UK lenders for heat pump installations. These come in various forms, from direct cashback to 0% interest on additional borrowing, significantly lowering the overall cost for eligible homeowners.
*Nationwide's offer is 0% interest on borrowing, not direct cashback. All offers are subject to specific eligibility criteria, terms, and conditions from each lender. Cashback is typically paid **after** work completion and verification.
The Power of Stacking Incentives
The real magic happens when you combine the government grant with your bank's offer. This dual approach makes green heating more affordable than ever.
BUS Grant
£7,500
+
Bank Cashback
£2,000
(e.g., Barclays/Halifax/Lloyds)
=
Total Savings
£9,500
This example shows how combining the maximum cashback from several major banks with the BUS grant can slash nearly £10,000 off the initial cost, dramatically reducing the financial barrier for homeowners to adopt cleaner, more efficient heating.
Are You Eligible? Key Checks
✓
Homeowner Status
You must own your property. The BUS grant is mainly for existing homes in England & Wales.
✓
Mortgage & Bank Account
Most bank schemes require you to have an existing mortgage or current account with them.
✓
EPC Rating
While not always needed for the BUS, a valid Energy Performance Certificate (EPC) is often key for green mortgage deals.
The Installer's Critical Role
🛠️
MCS/TrustMark Certified Pro
Your chosen installer must be MCS or TrustMark certified. This is non-negotiable for the BUS grant and many bank rewards. It's your guarantee of quality and your key to unlocking funding.
The Market is Heating Up
The push for greener homes is accelerating, with rising homeowner demand and government investment creating a clear trend towards sustainable heating.
Increase in BUS Applications
88%
Year-on-year increase in grant applications (March), showing a massive surge in homeowner interest.
What's Next?
The government is consulting on expanding the BUS to include new technologies like **air-to-air heat pumps** and exploring new ownership models like **leasing** to spread the cost. This signals a long-term commitment to making heat pumps the standard for UK homes.
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