Ken in M.
Really good warranty
I installed my sliding patio doors in 2017 and through MY mistake in giving them the wrong information, it looked like they were not under warranty, even though it turns out in the end they were under the 10 year warranty. My doors have built-in blinds between the glass panes. The problem was that the mechanism to raise the blinds was failing. At first they diagnosed the problem and said I needed a part that counting tax and shipping was $50. The part was a 3 inch piece of plastic which I could have printed on my 3D printer for $0.15. It also was not the solution to my problem. Once I figured out that I was actually under warranty, and proved with a video link that the mechanism was failing, they were happy to to send me a new door for free. They also issued a full refund on the $50 part. Their customer service people are really friendly, and they really stand behind their warranty, but after 10 years, expect to pay an absurd amount for repair parts. If it wasn't for the $50 price tag on a 3 inch piece of plastic, I would have given them 5*s.