MacLennan LSE were employed by Amery Construction to work with themselves, Grace Products and Wembley Stadium engineers to resolve waterproofing problems around the whole of the stadium.

The basement in Wilton was filling up with water so quickly that water from the basement springs was flooding out through the door and into the road in front of the house.

Maclennan-LSE installed a Cavity drainage system which channelled the water from the points of ingress into two sumps with powerful NP400 pumps individually piped to the outside for maximum performance.   

The client was refurbishing this very large country house. The cellars flooded to 600mm deep every year. The Maclennan-LSE qualified surveyor proposed the use of the Maclennan-LSE Cavity Membrane system and drainage to sumps and pumps.