Cavity Wall Insulation

 
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Reduce your heating bills and save energy. 

Typically, about 35% of all the heat loss in a poorly insulated home is escaping  through the walls.

A cavity wall is made up of two walls with a gap in between (the cavity).  The outer is made of brick and the inner of brick or concrete block. Houses built after the 1920's usually have cavity walls but often have no insulation as this was not included in new-builds until the 1990's.  Houses built before the 1920's are more likely to have solid walls with no cavity and are usually made of brick or stone.

A good way to check is to have a look at your external walls. A cavity wall will  usually have bricks in an even pattern laid horizontally, whereas a solid wall will have an uneven pattern with some  of the bricks showing the narrow side. Sometimes the bricks have been covered so another way to tell is by measuring the thickness of the wall, usually near a door or window.

If the brick wall is more than 260mm (C.9") thick it is probably a cavity wall, and if narrower probably a solid wall.

For an average sized property with easily accessible walls, our professionals can insulate your property in just 2 hours. Our registered installers will drill several small holes at 1m intervals approx. 22mm in size into the outside of your home. They will then blow the insulation material through the holes and into the cavity using specialist equipment. The materials used will be either mineral wood or polystyrene beads. Once the process is completed the installer will fill all the holes with a cement mortar so they are barely noticeable.

The process is non-invasive as nobody needs to enter your home, and it should not leave any mess.

This is not a job you can attempt yourself and should only be undertaken by a registered professional with specialist equipment.