Floor Insulation

Floor insulation can help you save on your energy bills and reduce your CO2 emissions. The ground floor accounts for around 10% of heat loss of the average home.

Floor insulation, different options for different floors:

Except if they are above an unheated space (i.e. a garage) your upstairs rooms would not need to be insulated.

1. Floorboard insulation for suspended floors

Floor insulation under the floorboards of your ground floor can save you about £60 each year. If you can’t access the floorboards from underneath from a cellar or a basement, these will need to be lifted. Once this is done, the insulating material, such as mineral wool is laid between the joists. If you are good at DIY, you can do it yourself, you will find the materials in a large DIY store. If not, use a professional installer.

2. Skirting board insulation

To reduce the heat loss from your ground floor you can seal the gaps between floors and skirting boards. Fill the gaps with a tube of sealant. It is a cheap and easy solution and sealant is cheap and available in most DIY stores.

3. Solid floor insulation

A new home is likely to have a solid concrete ground floor. Solid floors lose less heat than suspended floors. It is worth insulating solid floors if they need to be replaced. A rigid insulation can be laid on the solid floor and the floor covering will sit on top of it. Please note that this method raises the floor level so electrical sockets may need to be refitted and doors may need to be trimmed.

How much can I save with floor insulation?

Insulating your floor can be a very cost effective energy saving measure, especially if you can do it yourself!

The savings with a concrete floor insulation is about the same as a timber floor insulation. Its costs however will depended on the amount of work needed.

How do I find a professional for my floor insulation?

Depending on the type of insulation that is needed for your floor you may need to get help from a professional. To find a trusted professional visit the National Insulation Association website.

Do I need to comply with building regulations?

Yes you will need to comply with the relevant Building Regulations if you add extra insulation to your floors. It is your responsibility to comply if you decide to do the work yourself. Contact your local Building Control Office before starting work yourself.  If you are using a professional, your installer will arrange this for you.

How can I finance floor insulation?

You can finance floor insulation through the new government energy efficient home improvement scheme, the Green Deal (click here to learn more and see if you are eligible) . You pay back this investment through savings on your energy bills. Another subsidy called ECO (click here) might also be available too.


Energy Saving Trust

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