Worked extremely hard to locate the leak

Dear Mark I write to express my satifaction regarding the conduct of both you and your staff during my recent water leak episode. Both of your technicians, Lee and Bernie, worked extremely hard to locate the leak after arriving promptly at the agreed time. They were courteous and supportive during what was a trying time for both Jenny and myself. I was particularly appreciative of their efforts when I learned of the extremely early starts they have to make to reach us here in Cornwall. May I express my appreciation of your understanding and confidence-boosting manner when I spoke to you on the phone. The whole episode was conducted with skill and professionalism and I wholeheartedly commend LDS as a company of the highest calibre. Please convey my sentiments to Lee and Bernie, and I wish you all a happy and prosperous New Year.