Nick W called ahead to announce when he would arrive. Upon arrival, Nick quickly started diagnosing a problem with our hot water not working in one of our showers. The problem was unusual because all other faucets did not have this problem. Nick took the time to consult with experts regarding our tankless water heater, which ended up NOT being the problem. Nick continued to troubleshoot the issue and discovered that the problem was the Kohler cartridge on the shower control malfunctioning. Nick went over my options thoroughly. Nick replaced the cartridge and replaced the caulk around the hardware. Nick went above and beyond recognizing that I was a veteran and offered me a veterans discount! Great job Nick!!!!