Around half of all the heat lost from a typical solid-walled home escapes through the walls. Insulating these walls will keep the warmth inside for longer and greatly reduce your heating bills.

Solid wall insulation may be suitable for homes made from brick, stone or concrete construction, and works by adding a layer of thermal material to the existing inside wall. This will reduce the size of your rooms a bit, though you may find if a cold wall is made warmer you actually increase the amount of usable space in a room.

Internal solid wall insulation is particularly appropriate where you need to maintain the external appearance of the building (e.g. in a heritage context).