I highly recommend Eddie with Purrfect Pet Doors! He gave me ALL the information up front, over the phone, no "hidden charges". The first time Eddie came out to install our door we had to reschedule due to the place I wanted the pet door required a custom size. Not only did Eddie recommend the special size instead of trying to sell me something he had that day, but he did not charge for the visit. When the custom doggie door came in, he was on time, fast and cleaned up after his visit. He explained how to clean the door and how best to train my dog to use it. Hale pet doors are expensive but after buying cheaper brands and then having the flaps not stay closed it is definitely worth the investment.