How to Improve Your Home’s EPC Rating: A Complete Guide

The EPC, also known as an Energy Performance Certificate, is a significant document for households. It measures the energy efficiency of the house. There is a rating scale to check the performance. The scale ranges from A to G, where A indicates the most efficient energy use, while G indicates the least efficient. EPC helps you gain insights into your property's energy usage and running costs. 

EPC ratings are not mere numbers; they have a direct effect on monthly energy bills and also add value to the property. Thus, it is important for every homeowner, landlord, and buyer. It is a legal requirement in the UK for landlords to achieve a minimum EPC rating before renting out a property. This requirement underscores the importance of EPC rating, indicating that energy efficiency is a key consideration. 

A good EPC rating is not only helpful in staying compliant with legal regulations, but it also results in a warmer, more comfortable, and cost-effective house. There are multiple ways to increase your score, including switching to LED lights, installing renewable energy systems, and upgrading insulation. 

What Do You Know About EPC Ratings? 

An Energy Performance Certificate is designed to inform you about the energy efficiency of your home and the cost required to heat it. As the scale ranges from A to G, A indicates that the property is most energy-efficient and has a low running cost, while G means that the house is least energy-efficient. EPC is also used to obtain recommendations on what improvements can be made to increase the rating, beyond simply measuring the current rating. 

The following are some of the factors that affect the EPC score:

• Insulation around the house - floor and wall insulation, and the quality of the loft.
• Heating systems - how efficient the boiler is, its type, and the number of heating appliances.
• Doors and windows - glaze on doors and windows, whether it's single, double, or triple.

EPC ratings play a significant role in the UK’s legal framework. According to the Minimum Energy Efficiency Standards (MEES), properties with an EPC rating below E do not qualify for rent unless there is an exemption due to a specific reason. It demonstrates the importance of the EPC rating, even when renting out your property. It will undoubtedly give your property a boost in the rental market. 

EPC boosting is beneficial. Some of its benefits are given below:

• Energy bills are lower as heat loss is reduced.
• The property's value is enhanced, which helps attract the attention of buyers and tenants.
• The carbon footprint is smaller, which helps to maintain a greener environment.

Understanding these ratings helps take steps towards cost-effective improvements, leading to long-term benefits such as lower energy bills. 

Important Ways That Can Improve EPC Score

There are multiple ways to improve the EPC rating. It can be a daunting process, but even minor tweaks can help in the improvement. Some practical ways that can help to increase the EPC rating are given as follows:

• Improvement of Insulation 

The easiest way to increase your EPC score is to improve the insulation. When insulation is poor, then there is more heat loss, which indicates that the heating system is working more, thus increase in energy bill. Types of insulation are:

1. Roof and Loft Insulation: Uninsulated roofs account for approximately 25% of heat loss. The recommended insulation depth is 270 mm, which significantly reduces heat loss. It can cost you around £400–£600 if you have an average-sized home. 
2. Insulation of Walls: Wall insulation is another method that can help you improve your EPC score. If your house has wall cavities, it is best to fill them with insulation, as the reduced bill will cover the cost for you. The energy efficiency will be increased, thus low energy costs. 
3. Insulation of Floor: It is beneficial in older homes with timber floors, as it helps keep the rooms warm and also prevents drafts. 

These measures will contribute to improving the EPC rating as well, and you will get a warmer and cozier home. The energy bill cost will be reduced, also helping you in the long run. 

• Upgrade of Heating System

Another option is to upgrade your heating system. Having a boiler older than a decade can also contribute to a low EPC rating. Upgrade it to a modern A-rated boiler to improve the efficiency. Modern boilers consume less heat, resulting in improved performance and reduced energy wastage. 

Another important factor is to add thermostats and heating controls, which allow users to set a specific temperature and schedule it accordingly. In this way, energy is only used when required. You can also install zoned heating systems. These systems enable you to control various areas of your house, allowing you to set the heating system according to your specific requirements. All of these factors improve your EPC rating as well as overall energy management. 

• Switching to LED Lights

Switching to LED lights may seem like a small change, but it makes a huge difference. It is one of the cheapest ways to improve your EPC rating and also the simplest one. Replace older halogen bulbs with LED lights. They use significantly less energy and also last longer, which means you don't need to replace them frequently, and your energy costs are reduced. 

Though small, lighting upgrades can make a surprisingly big difference. Replacing traditional halogen bulbs with LED lights is one of the simplest and cheapest ways to improve your EPC. LEDs use up to 90% less energy and last much longer, meaning you’ll save on both energy bills and replacement costs. It is a quick and simple way to boost your ECP rating.

• Upgrade to Double or Triple Glazing Windows

Another area where energy gets lost is windows. Therefore, it is advisable to replace single-glazed windows with double- or triple-glazed windows. It helps to prevent draughts and also improves heat retention. It also reduces noise pollution, condensation and improves energy efficiency. 

If there is no option to replace the windows, then one must opt for secondary-glazed windows. It is the best alternative that can help reduce energy costs. In this method, an additional panel is installed inside the window to provide insulation, while the exterior remains unchanged. It is a large investment that, in return, provides long-term benefits. It will increase your EPC score. 

Common Mistakes to Avoid When Trying to Improve Your EPC

There are some common mistakes that one can make when unaware. The following are some pitfalls that can waste your money and time:

• Main Focus on Aesthetics – the stylish and aesthetically pleasing decor is not worth it for your EPC score. The only factors that can improve the EPC rating include insulation, lighting, and a good heating system. 
• DIY Solutions - trying to DIY for heating systems and insulation only leads to failures. They do not contribute to achieving the desired energy savings and can be detrimental to your property. Always consult professionals before these major upgrades. 

Not obtaining a new EPC after making improvements means your rating will not be improved unless you obtain a new EPC certificate. You will need to obtain a new one, even if you are selling your property, so that buyers are aware of your improved EPC rating. 

Conclusion

EPC rating is a legal requirement. In addition to legal requirements, it also benefits you by reducing energy bills, increasing property value, and providing a comfortable in-house environment. You can easily improve your EPC score by making small changes, such as installing insulation and draught-proofing. But if you want to invest long-term, then you can opt to upgrade your boilers. A of these changes will be beneficial for you in the long run and contribute to a greener environment. 

It is better to consult a professional energy assessor who can guide you more effectively in improving your EPC score according to your house's specific needs. All your efforts will be valuable for your future, and you will have the opportunity to live in a comfortable home.

FAQs 

What is the cost of obtaining an EPC certificate?

The cost of an EPC certificate varies, fluctuating depending on various factors, including the size and location of the property. The range usually lies within £60–£120 in the UK. It is a time fee that is paid to the government-recognized assessor.

How long does an EPC last?

The EPC rating certificate is valid for 10 years from the date of issuance. However, if you have made some improvements to reduce energy costs, you can then purchase a new one to see how much you have improved.

Can landlords rent a property with a low EPC?

It is not legally permitted to rent out properties with an EPC rating of less than E, according to the Minimum Energy Efficiency Standards (MEES), which are regulated in the UK, unless an exemption applies.

What’s the fastest way to improve an EPC score?

Some of the fastest and easiest ways to improve EPC rating include insulation, switching to ED flights, and draught-proofing.

Do solar panels guarantee a higher EPC rating?

Solar panels do affect the EPC score, but this depends on the amount of energy generated and the level of usage in your home. If the amount of energy generated and your usage match, then it will positively impact your EPC score.