I live in a detached house and when we moved in the neighbours drive was too high and covered our damp course. We had the necessary chemical treatment and some years later we had cavity wall installation. I have noticed that there are damp patches all the way along the wall and I can see dark lines illustrating the brickwork behind that plaster on one of my chimney breasts. Are you able to give me a solution - I cannot find my guarantee for the damp remedy and the cavity wall installation haven't replied. thank you

ASK OUR TEAM OF EXPERTS FOR ADVICE

Q. I live in a detached house and when we moved in the neighbours drive was too high and covered our damp course. We had the necessary chemical treatment and some years later we had cavity wall installation. I have noticed that there are damp patches all the way along the wall and I can see dark lines illustrating the brickwork behind that plaster on one of my chimney breasts. Are you able to give me a solution - I cannot find my guarantee for the damp remedy and the cavity wall installation haven't replied. thank you

To solve the problem, you’ll need to hack off old plaster on the internal wall to 1.0m high and apply a water proof tanking system called pore-stop to the brick work. The area will then need to be plastered with a drywall salt retardant additive. If you would like us to help further and come out to do a free survey, we would be happy to do so.

« Back