What’s a Waterproofing Company Cape Town and What Do We Do? In the construction field, waterproofing covers a property’s structure with membranes and coatings that protect all underneath structures from harm caused by water. Not only does water directly damage the building itself (especially wooden structures) and leads it to rot, but it also acts as a breeding ground for unwanted toxic molds. This can be a potential health risk for the occupants. That’s where a professional waterproofing company Cape Town comes in. Waterproof Lab will make sure that all of your waterproofing needs are met.