How to Improve EPC Rating in 9 Easy Steps (2024)

Updated 20th December 2023

Every home’s energy efficiency is measured with an Energy Performance Certificate (EPC) rating. It’s how potential buyers, landlords and tenants know how green a property is – and how much it could cost to run.

Many homeowners are surprised at how a small number of changes can make all the difference in how energy efficient their home is.

In this detailed post, we’ll look at eight easy steps you can take to improve the EPC rating of your property before selling or renting it out.

How can a good EPC rating benefit me?

EPC ratings range from A (most efficient) to G (least efficient), with each coming with recommendations on how it can be improved.

Whether you’re a landlord or a seller, having a good EPC rating is essential. Not only can it make your property more attractive to potential buyers or tenants, helping you get the best price possible, but it can help you save money on your energy bills and help you contribute to the fight against global climate change.

New rules to be introduced in 2025

Currently, Minimum Energy Efficiency Standards (MEES) regulations stop landlords from renting a property if it has an EPC rating of below E.

This means that the property is deemed to be inefficient and will cost far more to run in terms of energy bills when compared to a higher-rated property.

However, new EPC regulations being introduced in 2025 state that all newly rented properties must have an EPC rating of C or above. This of course could have a massive impact if your property does not meet that standard.


8 top tips to improve the EPC rating of your home

1) Get loft insulation

Given that properties without loft insulation tend to lose around 25% of their heat through the roof alone, installing loft insulation is a great way to improve your EPC rating.

Renewable wood fibre or fibreglass are two of the most common fabrics used to insulate properties, with the latter better for properties with higher ceilings.

If you don’t already have it, we recommend installing loft insulation of at least 270mm thick to ensure that as much heat as possible is retained.

What’s better, some properties may be eligible for free loft insulation through the Great British Insulation Scheme (formally ECO+) or ECO4 Scheme.

2) Invest in wall insulation

Another easy way of improving your property’s EPC rating is by investing in wall insulation.

In fact, more heat is lost through uninsulated walls (35%) than through the property’s roof!

Internal wall insulation is a popular choice for many homeowners, with cavity wall insulation being the most effective.

Installation of this measure is relatively cheap, averaging around £370 to £500 for your average home. However, much like loft insulation, many UK homes may be eligible for free wall insulation through the ECO scheme and should contact a member of our team to learn more.

how to improve epc rating

3) Upgrade to LED light bulbs

By replacing old incandescent light bulbs with new, energy-efficient light-emitting diodes (LED) light bulbs, you can make a real difference in how efficient your home is.

Not only are LED lights more energy efficient (using up to 90% less electricity than traditional ones) but they also last much longer – meaning that you won’t have to replace them as often.

Better yet, this is a quick and cheap fix that’ll actually help you save money in the long run!

On average, an LED bulb will last upwards of 60,000 hours before needing replacement – over 50 times longer than an incandescent bulb.

4) Install double glazing

A typical household loses 10% of its heat through its windows, with double glazing helping to reduce this figure significantly.

In addition to improving your property’s EPC rating, double-glazed windows can also help you save money on your energy bills as it prevents the heat from escaping the house – keeping you warmer for longer.

Because double-glazed windows act as a barrier between the inside and outside air, they can help make your home warm during winter and cool during summer.

Not only that, but the improved soundproofing of double-glazed windows will help ensure you have a peaceful night’s sleep too!

It’s estimated that installing double glazing can help you save up to £100-£300 per year on heating bills. Any home with double-glazing looking to further reduce heat loss may benefit from triple-glazing too.

5) Ensure that ventilation and draught-proofing are in place

While keeping your home airtight may be a good way of losing heat and hence reducing energy bills, it’s also important to ensure that ventilation is in place too.

This is because, without proper ventilation, moisture can build up – leading to issues like condensation and mould.

Ensuring that draught-proofing measures are taken is also important. This could include using draught strips on window and door frames, as well as investing in a chimney balloon to fill the gap between your chimney and the outside air – both of which will help keep heat trapped in the house.

6) Install a smart meter (or any other heating controls)

A great way to truly gain control over how much energy you use (and how much money you spend on it) is by installing a smart meter.

Smart meters are devices that measure how much energy your household is using in real-time, allowing you to keep track of how much electricity and gas you’re consuming – helping you find ways to save money and reduce your carbon footprint.

Not only that but the data collected by smart meters can also be used to inform how you use energy more efficiently – helping you reach a higher EPC rating in no time!

7) Upgrade your boiler to a more efficient model

Calling this an easy fix might be a bit of a stretch – but hear us out!

Efficient heating systems are at the heart of an excellent EPC rating, and for good reason.

Did you know, a G-rated boiler loses at least 30% of its energy? Not only will this massively affect your property’s EPC rating, but it will cost you a fortune in wasted energy too.

By replacing your current boiler with a higher efficiency model (A-rated or above), you can reduce the amount of energy you use, and help to improve how efficient your property is overall.

Better yet, most new boilers will come with an extended warranty, meaning that you won’t have to worry about potential repairs for several years.

Although installing a new boiler may set you back by at least £1,000, it’s an investment that will soon pay for itself in energy savings and improved EPC ratings.

Plus, replacing an old boiler may make you eligible for a government grant to help cover some of the cost – how good is that?

8) Install renewable energy sources such as solar panels or air-source heat pumps

Much like the last point, installing solar panels or air-source heat pumps may not be the easiest measure but it can produce great results.

Solar panels convert energy from the sun into electricity – saving you money on your energy bills while helping to increase how efficient your property is!

Air-source heat pumps employ an underground loop of pipes that absorb the heat from the ground and use it to warm water for your home – again, reducing how much energy you use.

Both of these renewable energy options are highly efficient and cost-effective, and they come with generous government incentives too!

Through the ECO4 and Great British Insulation Schemes, hundreds and thousands of UK households could benefit from these energy-efficient upgrades. So, if you’re looking to improve your property’s EPC rating – while reducing how much you spend on energy bills – then it might be worth considering one of these solutions.

9) Get Floor Insulation

Insulating the ground floor of your home, whether it’s a house, bungalow, or ground-floor apartment, is an effective strategy for reducing heating costs and enhancing your Energy Performance Certificate (EPC) rating.

By adding insulation beneath the floorboards, you could potentially save approximately £110 annually in a typical property, and even up to £180 in a detached house. For an immediate solution, consider sealing the spaces between the floors and skirting boards on your own to minimize draughts. This can be easily done with a tube of sealant from any home improvement store.

Improve Your EPC Rating with So Eco

Thank you for reading our post on how to improve your EPC rating.

At So Eco, we offer a range of services that can help you reach your desired EPC rating. From energy-efficient renewable energy sources to insulation, our team of experts have got you covered!

We understand how daunting it can be to transform how efficient your property is – but don’t worry, we’re here to help.

Visit our contact page to find out how to get in touch with a member of our team today or alternatively use our quick and easy eligibility checker to see if you could be eligible.

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