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How to improve your house's EPC

4 June, 2024

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Whether you are selling or letting a property, it is important for you to have a valid Energy Performance Certificate (EPC). It helps potential buyers and tenants predict their future energy spending. The scale goes from A (very efficient) to G (inefficient), and it lasts for 10 years. An EPC also highlights cost-effective ways to achieve a better rating and information on what your score could be if you made the recommended improvements.

Take a look below for some general improvements you could make to boost your rating and reduce your annual bills.


The easiest and cheapest measure you can take to improve your EPC rating is replacing inefficient lighting with LED bulbs. LED lights use 75% less electricity than incandescent bulbs and they typically last up to 25 times longer. 


Single-pane windows result in significant heat loss. Upgrading to double or triple-glazed windows, if possible, can help control the temperature in the rooms, reduce heat transfer and even improve insulation.


As heat rises, poor loft insulation results in a significant heat loss. Improving it will help retain more warmth in the colder months. Current building regulations recommend the insulation be at least 270mm thick. Don't forget to address any issues with wall insulation too- such as upgrading your cavity wall or solid wall. Insulating your ground floor is another great way to keep your property warm in winter.


If your boiler is getting old, it’s probably not operating at its full potential. Replacing an inefficient boiler with a newer, more energy-efficient model, can help reduce your annual bills and boost your EPC rating.

Smart Meter & Heating Controls 

Install a smart meter and heating controls to better monitor and manage energy use in your home. You can change your settings whenever you want from wherever you are, via your smartphone.

Renewable Energy

Explore renewable energy options, like solar panels or ground source heat pumps, for example. Even though this is an expensive investment, the long term benefits include significantly reducing your home's energy usage, decreasing your annual bills and limiting your impact on the environment. Ans also boosting your EPC rating.

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