A shower on the second floor leaked down to the main floor. We thought it was a pipe or bathtub drain seal, but Simon quickly determined that it was a small crack in the acrylic tub that had been poorly fixed prior to us buying the house. He also noted that the spout and tap fixtures were not siliconed and the overflow valve was on upside down. He thoroughly checked the tap cartridge, found poor gaskets in the hand held shower head, fixed the overflow valve and siliconed everything that needed to be done. Simon was very knowledgeable, thorough and clearly explained what he was doing. An added bonus was that he was super personable! I have made sure to add his name to my address book so I know who to request next time!