When installed correctly and with the right material, cavity wall insulation in a house which is in good condition externally will ensure your property remains safe, energy efficient and warm.

Unfortunately, cavity wall insulation can result in penetrating damp, condensation and mould if the following occurs:

• The cavity was not appropriately cleared prior to the insulation installation
• Your property’s location is within a high wind and rain exposure area causing penetrating damp
• Your property suffers from damage to external walls such as cracks within the render, pointing or brickwork.
• Your property’s structure is not appropriate for cavity insulation
• It has not been installed correctly
• The cavity is suffering from blockages as a result of building works
• The insulation is aging and suffering from slumping.

The damaged cavity wall insulation material is removed as unobtrusively and cleanly as possible.

Compressed air is blown into the cavity while an industrial vacuum collects the damaged insulation from the bottom of the wall through strategically removed bricks.

A boroscope is used to inspect the cavity throughout the process to ensure all damaged insulation has been completely removed.

The old insulation is then bagged up and removed, while all the brickwork is made good.

Damp problems are the main reason customers call us for cavity wall insulation removal.

It is usually caused by poorly maintained exterior brickwork, severe exposure to wind and rain, lack of protection from other buildings and trees, or a combination of the three.

This graphic from Which.co.uk shows the areas in the United Kingdom that are exposed to the wind and rain and potentially more at risk to their cavity wall insulation causing damp problems.

It has four different levels of exposure zones which indicate the approximate amount of wind driven rain which the building may be subject to.

WYGS Ltd can extract the following materials from your cavity walls at the prices shown.

These prices are excluding VAT @ 20%

• Bonded expanded polystyrene £16/m2
• Urea Formaldehyde Insulation £16/m2
• Rockwool Mineral Fibre      £14/m2
• Whitewool Glass Mineral Fibre      £14/m2
• Loose expanded polystyrene         £14/m2     

Add £12/m2 if you require the cleared cavity re- filled correctly with bonded expanded poly bead insulation.

Click on "Request Free Survey" and fill in a few details and we will contact you to arrange a survey.