Can You Borrow More on Your Mortgage to Make Your Home Energy Efficient?

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With energy bills still a big concern for many households, improving the energy efficiency of your home is becoming a priority for homeowners across the UK.

The good news is that some mortgage lenders are now offering “green additional borrowing” options, allowing homeowners to borrow money at very low or even 0% interest, for a fixed period to make energy-saving improvements to their property.

At Oak Mortgages, we’re seeing more clients ask how they can upgrade their homes to reduce bills while keeping borrowing costs manageable.

Here’s how these schemes can work.

What Is Green Additional Borrowing?

Green additional borrowing allows homeowners to borrow extra money on their mortgage specifically to fund energy-efficient improvements.

This could include upgrades such as:

  • New double or triple glazed windows

  • Loft or wall insulation

  • Smart heating systems or smart thermostats

  • Solar panels

  • Heat pumps

  • Energy efficient doors

  • Improved ventilation systems

The aim is simple: help homeowners reduce energy consumption and improve EPC ratings.

How Much Can You Borrow?

Some lenders currently allow homeowners to borrow:

  • £5,000 up to £20,000

  • Often without product fees

  • Sometimes at very low or even 0% interest for an initial period

The borrowing is usually available up to around 90% loan to value, depending on the lender and the customer’s circumstances.

Because the funding is tied to energy improvements, it can sometimes offer better terms than standard additional borrowing.

Do You Have to Wait Before Borrowing More?

Traditionally, if you take out a mortgage and later want to borrow more, lenders may require you to wait around six months before applying for additional borrowing.

However, some green borrowing products allow homeowners to apply much sooner, sometimes after their first mortgage payment has been made, subject to affordability checks.

This can be particularly helpful for buyers who:

  • Have just purchased a property

  • Know improvements are needed straight away

  • Want to complete energy upgrades quickly

Why Energy Efficiency Matters

Improving your home’s energy efficiency doesn’t just help the environment, it can also:

✔ Reduce monthly energy bills
✔ Improve comfort and heating efficiency
✔ Increase your home’s value
✔ Improve EPC ratings
✔ Make your property more attractive to future buyers

With upcoming government discussions around EPC requirements and sustainability, many homeowners are starting to future-proof their properties now.

Can Everyone Access Green Mortgage Borrowing?

Not always.

As with any mortgage borrowing, lenders will still assess:

  • Income and affordability

  • Credit history

  • Current mortgage balance

  • Property value

  • Loan-to-value limits

Different lenders also have different criteria about what improvements qualify.

That’s why speaking to a broker can be helpful, as we can look across the market to see what options may be available.

Thinking About Making Your Home More Energy Efficient?

If you’re planning improvements such as new windows, insulation, solar panels or heating upgrades, there may be mortgage options that help you fund those changes in a cost-effective way.

At Oak Mortgages, we help homeowners explore their options and understand whether additional borrowing could work for their situation.

Sometimes the right solution might be:

  • Additional borrowing

  • A further advance

  • A remortgage

  • A specialist green mortgage product

Every situation is different, which is why advice matters.

Speak to Oak Mortgages

If you’re thinking about improving the energy efficiency of your home and want to understand the borrowing options available, our team is here to help.

YOUR HOME MAY BE REPOSSESSED IF YOU DO NOT KEEP UP REPAYMENTS ON YOUR MORTGAGE.

Clever Mortgages is now part of Oak Mortgages Limited.

Don’t worry, you’ll still be looked after by the same friendly, experienced team you know and trust. We’re here to guide you every step of the way on your mortgage journey.

👉 Discover more about us at www.oakmortgages.co.uk or see what our happy clients are saying on Google Reviews.

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sunday ifenkwe
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They were very very professional and always willing and ready to respond to all my queries, guided me through this process simlessly. I am happy I used their services. I will also like to give a special appreciation to Vicki Redley she was very great and an amazing individual as she guided me all through the process.
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Ifenkwe Grace
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Well so far the experience with you guys has been pretty great
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Hannah Vivian
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Recently had Abby as our broker, who was super friendly and made the process smooth and easy. Thank you
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Stephen Dowding
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My experience of Oak Mortgages has been unfailingly amazing. Abby is WONDERFUL at her job: super-kind, expert and patient and a huge credit to the company.
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G S
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From the very first contact through (what was a complex and hugely frustrating conveyancing process), to the day of completion, Oak Mortgages were the shining light that got us through. Sarah and her team were brilliant. They were responsive, caring, empathetic, knowledgeable, professional, and human at each and every stage. We are so grateful that we used Sarah and Oak Mortgages and highly recommend them to anyone wanting to guarantee that authentic, trustworthy approach from professionals who care. A top class act - 5 ⭐️⭐️⭐️⭐️⭐️
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DOBO and the Foodies
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Awesome service, helped me at every step on a journey I never thought at 50 I could make! Sarah is amazing available whenever I needed her highly recommend
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Caoimhe Clarke
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Thank you to Abby and the admin team at Oak Mortgages who have been fantastic in helping me secure a remortgage on my property. From my first phone call to Abby I was filled with confidence and the experience with the team was brilliant, especially when other companies involved were not so brilliant the Oak Mortgage team pulled out all the stops to make sure completion happened. I would highly recommend this company and will use their services in the future. Thank you again.
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Lisa Zuccotti
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Excellent company to deal with , very efficient and caring ensured all our needs where met . Highly recommended.
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Reece Baird
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claire.geraghty Amazing lady, helped me all the way to the finish line! Highly recommend!
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Excellent service and advice throughout the whole process making for a very straightforward experience with special thanks to Abby and Ashleigh.
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