We rennovated home 18 years ago and went with Pella windows. After all this time, they are all in excellent condition, save for one that rotted out due to faulty construction of the window. As the warranty was 10 years on the window, we didn't call the company. However, with over 20 windows in our home, we're still very impressed that all but one are in great condition. Although these windows are priced higher than your average brand, I feel the overall quality and workmanship are worth the extra money.