Dear Mr. Hefner,
This letter is to thank you for the excellent service I’ve always received from your company. I am very satisfied with the quality of your work which is first class.
Every time you have made repairs at my home, you’ve left everything clean and in good order, which I appreciated very much.
Thank you again for your help, I certainly will call you should I need plumbing work done and I have recommended you to friends and family members.