This extremely effective system utilises an ‘egg box’ style design, cavity drainage membrane. The membrane allows any water penetrating through the fabric of the building, to flow in a controlled manner behind the final wall covering, into concealed irrigation channels and thereafter into a sump. The water is then pumped into standard drainage exits.

This is an area of work where we are very proud and confident in our achievements and we therefore offer a 10 year guarantee.

In addition to our extensive experience, our confidence is based on the fact that we are authorised and recommended by Triton Ltd., the premier Cavity Drain Membrane waterproofing system manufacturer in Britain.

It is further demonstrated by our continued employment for this type of work, with construction giants such as Northwest Holst and Mansell.

And finally, just in case there is any lingering doubt to our waterproofing capabilities, we were chosen from a hugely competitive field to undertake the sensitive and complex task of waterproofing beautiful Kensington Palace, Princess Diana’s old home in London. To find out more about how we controlled the heavy water flow in the basement.

Cavity Membrane

This extremely effective system utilises an ‘egg box’ style design.
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Concrete Repair

We have processes to prevent damp or water penetrating walls.
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Dry & Wet Rot

Wet Rot can usually be dealt with by removing the source of dampness.
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Epoxy Resin

One of our fail-safe techniques is the use of Epoxy Resin Repair.
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Rising Damp

This is an aspect of home ownership that affects millions of properties in the UK.
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Tam Injections

Harrison Waterproofing are authorised TAM injection repair specialists.
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With a CDM system any moisture is allowed to pass through the masonry.
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We are able select the most appropriate treatment where Woodworm is found.
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