 That pesky patio door. It used to slide open and shut with ease, but now it takes more effort to open and close. The seal's bad, and the latch is either too loose or too stiff. It's time to upgrade to a weather shield door. Hi, this is Tim Timlin with Kitchens and Windows Unlimited. Weather shield doors are the epitome of quality and innovation. They're energy efficient and carry a best-in-class warranty. And with an extensive selection of finishes and colors, it's easy to find one that fits your existing color scheme. When you close a weather shield door, you know you're closing the best.