Derek H replaced our old Liftmaster garage door opener that got fried by a recent electrical storm. He had a Nice brand opener on his truck that was a perfect replacement. He thoroughly checked out the old unit before replacing it to make sure there wasn't some other electrical issue with our garage electrical circuit, GFI or main electrical panel circuit breaker. He worked very efficiently and had all the right tools for the changeout. Derek was friendly, professional and did not pressure me into making a decision I was not comfortable with. I have used Precision Garage Door Service out of Knoxville, TN before and always been satisfied with the quality of their service work. I highly recommend them. Gary Huss, Maryville, TN