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Can I use a revolving credit facility to fund EPC improvements and energy efficiency upgrades?

22nd May 2026

By Simon Carr

Can I use a revolving credit facility to fund EPC improvements and energy efficiency upgrades?

UK landlords face constant pressure to maintain, upgrade, and future-proof their rental portfolios. Under current UK regulations, domestic private rented properties must meet specific energy standards. Improving your property’s Energy Performance Certificate (EPC) rating is no longer just about lowering utility bills for tenants; it is increasingly a legal requirement for renting out homes. Funding these essential energy efficiency upgrades can be a significant financial challenge, especially when dealing with multiple properties. If you do not want to tie up your personal savings or disrupt your existing long-term mortgages, a secured revolving credit facility could be the ideal financial tool to help you reach your goals.

Understanding the Buy-to-Let Revolving Credit Facility

A Buy-to-Let (BTL) revolving credit facility is a secured commercial product designed specifically for property investors. It is crucial to understand that this is not an unsecured business loan, credit card, or generic business revolving credit. Instead, it is a secured facility that is registered as a second charge against your existing residential buy-to-let property. This second charge sits comfortably behind your existing first-charge mortgage, meaning you do not have to refinance your primary mortgage to access capital.

This facility works like a property overdraft. Once set up, you are granted a credit limit based on the equity in your property. You can draw down funds, use them for your property projects, repay the balance when cash flow allows, and then draw down again without having to reapply. The primary benefit is that interest is only charged on the drawn amounts, not the full facility limit. This makes it highly cost-effective for ongoing works. Once arranged, funds can typically be drawn in 24 to 48 hours, providing rapid access to cash when you need it most.

How to Use Revolving Credit for Staged EPC Improvements

Energy efficiency upgrades rarely happen all at once. An effective plan to improve an EPC rating might involve several distinct phases over many months. For instance, you might begin with loft insulation and double glazing in the spring, wait a few months, and then install a modern heat pump or solar panels in the autumn.

A secured revolving credit facility aligns perfectly with this phased approach. Instead of borrowing a large lump sum and paying interest on the whole amount from day one, you draw down only what you need for each specific stage.

For example, you could draw down £8,000 to cover the initial costs of insulating the loft and upgrading the windows. Once the work is complete, you can repay that balance using rental income or other funds. Later in the year, when you are ready to replace an old boiler with an energy-efficient system, you can draw another £12,000 from the same facility without any new paperwork or application fees.

You can read more about current domestic energy standards on the GOV.UK guidance on Minimum Energy Efficiency Standards to see what upgrades your properties might require to stay compliant.

Comparing Revolving Credit to Bridging Finance and Remortgaging

When seeking capital to fund green upgrades, landlords typically consider two primary alternatives: bridging finance and remortgaging. It is helpful to understand how these compare to a secured revolving credit facility.

Bridging loans are short-term secured loans designed to bridge a temporary financial gap. In the UK, bridging loans can be open or closed. A closed bridging loan has a fixed repayment date and a clear exit strategy, while an open bridging loan has no set repayment date but must typically be repaid within 12 to 18 months. Unlike standard mortgages, monthly payments are not typical for bridging loans; instead, interest is usually rolled up and paid in full at the end of the term. While bridging can be fast, it is often expensive and is less suited to multi-phase, long-term renovation projects where you want to draw and repay money repeatedly.

Remortgaging is another common route to release equity. However, if you secured a highly competitive, low-interest fixed rate on your first mortgage a few years ago, remortgaging now would force you to refinance your entire debt at today’s higher rates. Additionally, remortgaging often triggers expensive early repayment charges and involves weeks of administrative delays.

A BTL revolving credit facility sits behind your existing mortgage as a second charge. It keeps your low first-charge rate intact while giving you the speed and flexibility of bridging without the need to refinance the entire property.

Important Risks and Compliance

As with any borrowing secured against your portfolio, your property may be at risk if repayments are not made. If you do not keep up with repayments on your revolving credit facility, it can lead to serious consequences. These consequences may include legal action, the repossession of your investment property, increased interest rates, and additional charges that can harm your investment business. Always ensure you have a clear plan for repaying any funds you draw down.

The Application Process and Credit Checks

To set up a secured revolving credit facility, lenders will assess your BTL property’s equity, your rental income, and your credit history. Before you begin the application process, it is helpful to check your credit file to ensure all your information is accurate.

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People also asked

Can I use a revolving credit facility for multiple properties in my portfolio?

Yes, you can secure the facility against one high-equity buy-to-let property and use the drawn funds to upgrade multiple different properties across your entire portfolio.

Is a revolving credit facility secured or unsecured?

It is a secured financial product, registered as a second charge against residential buy-to-let property, and is not an unsecured business loan or credit card.

Do I pay interest on the money I do not use?

No, you only pay interest on the specific amounts you draw down, making it highly cost-effective for staged property improvements.

How fast can I access funds once the facility is set up?

Once your revolving credit facility is fully established, you can typically draw down funds into your account within 24 to 48 hours of making a request.

Can I use this facility to pay for EPC improvements during a void period?

Yes, because the funds are flexible, you can draw from the facility to cover refurbishment costs and energy efficiency upgrades during void periods when no tenants are occupying the property.

Securing Your Facility with Promise Money

Funding energy efficiency upgrades is vital for preserving the value and compliance of your rental properties. A BTL revolving credit facility offers the flexibility, speed, and cost-efficiency that traditional financing options often struggle to match.

Promise Money is an FCA-authorised broker (Ref: 681423), not a direct lender. We work to find the right secured facilities for UK landlords and property investors. To discuss your options, speak to our expert team today on 01902 585020 or visit our hub at promisemoney.co.uk/landlord-revolving-credit-100 to find out how we can help you keep your portfolio compliant and efficient.

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    More than 50% of borrowers receive offers better than our representative examples. The %APR rate you will be offered is dependent on your personal circumstances.
    Mortgages and Remortgages secured on land
    Borrow £270,000 over 300 months at 7.1% APRC representative at a fixed rate of 4.79% for 60 months at £1,539.39 per month and thereafter 240 instalments of £2050.55 at 8.49% or the lender’s current variable rate at the time. The total charge for credit is £317807.66 which includes £2,500 advice / processing fees and £125 application fee. Total repayable £587,807.66
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