I called Michael Lock as he was recommended to me. I needed some help with installing a dog door. He installed it in an hour. Unfortunately to no fault of his it was the wrong door. My little white dog was not a fan. So we had to get him back to cut the door some more and install a new dog door. It took a couple weeks to get him back out but he came out the following day after his phone call. He caulked the door as well to fill in a gap from the first cut. I would recommend his business.