Vinybilt stands behind their lifetime warranty!
These windows were originally installed 20 years ago, when I noticed the windows were fogged this winter I got them on my to-do list to have them replaced in the spring. I called the company that originally installed them, they had changed hands and were of no help. I contacted Vinybilt and spoke with Maris who quickly found my me in their system. A couple of photos and measurements were sent to her and she ordered the windows to be replaced. In a couple of weeks they were ready and the installer came to replace them. The installer was respectful of my home and cleaned up after themselves.
Great communication from Maris, I didn't need to chase anyone down to get this done.