The door and all components installed in less than one hour. The quality is of a very high standard, so are the fittings that one can purchase with the door. With the aluminum adaptor, my security screen and glass sliding doors close perfectly and lock securely. We have one very happy puppy. That is not the best part, the most amazing is the service. From the minute your order is placed, you know exactly where the order is. When my Aluminum adaptor arrived, it was damaged in transit and I did not accept delivery. Within 10 minutes of me not accepting delivery, I had an email from Animalistic, apologizing for the incident and confirming that they had already shipped a replacement. Not only that, it was shipped by express post and I got it the very next day... AMAZING This is THE BEST company I have EVERY dealt with. Highly recommended all round.