"I want to personally thank you for your excellent service you provided us when we had a problem with our deck (Last Deck). I was extremely surprised that you replaced the whole deck. At the least, I had expected to have it repainted.
I will take every opportunity to promote your company and your products to anybody I know who might be thinking about installing your products. Your service is above and beyond and as a previous business owner; I know this is what it takes to succeed in business; once again a BIG thank-you to you and your staff."