We have nothing but terrible service and poor quality windows. Over the last 21 years I have contacted the company no less than 20 times to fix problems with the windows. The latest problem the wood under the cladding is rotten, their responce was we can't help you stay away from Pella windows
Reviewer is in unhappy mood. Please immediately contact the author of this review to discuss bad quality of pella windows. Pella needs to read this review and look into the issue (if any) according to poster's claims.
Other people also mentioned pella windows in their reviews. You may find this information helpful for further shopping at Pella.