Win-Dor is a vinyl window and door manufacturer serving Southern California homeowners, contractors, dealers, and home builders since 1991. They produce new construction windows, replacement windows, siding, French doors, and bifold doors. Unlike most other companies, they don’t offer many frame material options. They currently have four stars with 108 reviews on Yelp. Here’s a quote from one of their customers:
The Win-Dor warranty covers any defects in workmanship or materials that impair the product’s operation or performance. Their warranty lasts for ten years from the original install date. Homeowners must own and occupy the residence, and cannot be a rental vacation home. The warranty is transferrable to one subsequent owner if the original purchaser sells their home.