As a GC I deal with a lot of trades, Colum has been one of the nicest, honest and hard working individuals I have ever worked with. We got 14 feet of external Waterproofing done in the summer by Act Fast. I liked that they parged the wall with a type S cement before applying the tar. The other companies who gave us a quote were going to skip this stage. I am very pleased with the end result and would totally recommend these guys!