I installed my dumbwaiter in 2007. It was a new build situation. I found the unit easy to install. Don’t be intimidated as the staff at Powerlift Dumbwaiters, Inc. are very helpful answering questions and offering suggestions during the build out (Especially Larry!). They have been helpful with a few maintenance questions over the years. When you call a person, not a computer, says hello. Our unit is still working very well, just as on the 1st day. It is very well built and I imagine it will work fine for the life of the house. We use it almost daily. When I give a review sometimes, I ponder how many stars to give. This was an easy one. No question they deserve 5 stars!
-- Thomas W