Improving the energy efficiency of your property

If your property has achieved a low energy efficiency rating during an inspection you should look at the ways in which this can be improved. It can save you money in the long term and it’s better for the environment.


An energy performance certificate (EPC) will give you a breakdown for each area of your property, with a star rating and a recommendation on how you can improve each one. In addition to this you will see the estimated cost of remedying the issues and the potential savings which you can expect to make within the first three years. EPCs are carried out by qualified energy assessors, and can be obtained from


An EPC looks at the energy used for hot water, heating and lighting a property and the ways in which the energy could be reduced, or waste avoided through measures such as insulation and draught proofing.

low energy efficiency rating


Here are some of the ways in which your EPC rating can be improved:


Loft Insulation

The current recommended depth of loft insulation is 270mm, with many properties having less than this, replacing your current loft insulation could be a quick and easy way to reduce your energy usage, preventing heat escaping through the roof.


Cavity Wall Insulation

Homes built after 1920 typically have a cavity wall, these may not be insulated, or done so poorly, especially if your home is over 10 years old. By filling the cavity between the walls heat escaping through the walls is prevented and could save you over £100 per year.


Double Glazing

Heat easily escapes through doors and windows so in order to prevent this you should ensure your windows are, as a minimum double glazed. Replace any single glazed windows with double glazing and if your windows are over 25 years old you may find that they could be replaced by more energy efficient glazing.


Condensing Boilers

The majority of gas boilers which were installed after 2005 are condensing boilers which are significantly more energy efficient at recovering heat from the burning gas. As a result these can save you money approximately £300 per year (according to British Gas) and of course, energy.



With lighting accounting for 7% a typical energy bill and light bulbs being a hassle free change to make yourself this can be one of the easiest ways to reduce your energy costs and improve your EPC rating. Change all of your light bulbs to energy efficient light bulbs, saving around £40 during the lifetime of the bulb.


It is worth noting that the Green Deal finance initiative is in place for anyone looking to improve the energy efficiency of their home. Measures which can be funded by this initiative will be noted within your EPC report.


Although this does not specifically improve the EPC rating of your property there are ways in which you can reduce the environmental impact of your property as a whole and reduce your running costs. One of the most effective ways of doing this is by upgrading your current electrical appliances to ones which have a higher energy efficiency rating. Investing in an energy usage monitor, so you can actively see the energy you are using which may lead you to make more conscious decisions regarding the energy you use, with small changes each day working towards making a large reduction in your overall energy usage.