Save money on your heating costs
Insulating your solid walls could cut your heating costs considerably, and make your home more comfortable.
If your home was built before the 1920s, its external walls are most probably solid walls rather than cavity walls.
Cavity walls are made of two layers with a small gap or ‘cavity’ between them, solid walls have no gap so they cannot be filled with cavity wall insulation.
The answer for solid walls to insulate them from either side of the wall, either on the inside or the outside.
Solid wall insulating does cost more than cavity wall insulation but will save you a lot more money.