External Wall Insulation

External Wall Insulation

If your home was built before 1920 or you live in a non-traditional construction house then External Wall Insulation can significantly improve the energy efficiency of your home.


Solid walls or non-traditional houses can lose twice as much heat as cavity-constuction properties.

On average you will save around £490 per year on energy bills and reduce your CO2 emmisions by 1.9t/year (Energy Saving Trust figures, November 2013) By insulating your solid walls it will not only keep the warmth in to save energy, but it can also help reduce condensation inside the house if this is a problem on your external walls.

How it works

External wall insulation involves fixing a layer of insulation material to the outside wall and then covering it with a special type of render.

You can chose from a variety of different colours and finishes, which can be smooth, textured, painted, tiled, panelled or pebble-dashed.


All Everwarm's External Wall Insulation installations come with the Solid Wall Insulation Guarantee Agency (SWIGA). The SWIGA Quality Assurance Framework and Guarantee for solid wall insulation provides additional peace of mind and access to technical expertise in the event of any defect arising in the design, workmanship or materials and is aligned to the Green Deal & Energy Company Obligation (ECO) requirements for a 25 Year guarantee.


Everwarm will always survey a house before we insulate it. The no obligation survey and quotation is free and we will maximise any available funding support to ensure that any charges are kept as low as possible. Typically, you'll need to contribute around 30% of the cost of External Wall Insulation.

Installation Time

The installation time for External Wall Insulation can vary as every house is different. On average an installation will take around 10 days.

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Everwarm are members of the National Insulation Association and have been approved to install under the Government’s Green Deal and ECO programmes.

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Find out more about Lakehouse at www.lakehouse.co.uk