top of page

External Wall Insulation

In a badly insulated home as much as 35% of heat can be lost through the walls.

External wall insulation, however, can reduce this energy loss, saving approximately £475 per three-bedroomed semi-detached property, per year, in energy bills. 

Just think what you could do with an extra £475 per year!

So what exactly is external wall insulation?

This is the process of attaching insulation material to the outside of your existing property. 

This insulation material can be expanded polystyrene, mineral wool, polyurethane or phenolic foam. Then a cement-based reinforcement is applied, followed by a specialist textured render for the top layer. 

The render finishes include silicone thin coat, scraped lightweight render, brick slips and pebble dashing. The render can also be tinted to a shade of your choice to ensure the finished product is aesthetically pleasing.

The benefits of external wall insulation extends to more than saving money on energy bills.

The material itself is breathable and therefore reduces condensation on internal walls. It can also help prevent some types of damp and mould from forming. 

Not only does it protect the superstructure of the building against the elements but it reduces drafts, heat loss and can reduce external noise by filling in any cracks and gaps in the walls.

Additionally, the external appearance of your home is vastly improved, which will increase curb appeal and could potentially add value to your property.  

And the good news is unless you live in a conservation area or a listed building it shouldn’t be necessary to obtain planning permission to apply external wall insulation. 

So if your home has solid rather than cavity walls it is a candidate for external wall insulation as there is nowhere other than the internal or external walls for insulation to be applied. 


bottom of page