FROM PELLA TO JELD-WEN!  These 13 year old aluminum clad Pella windows had a terrible condensation problem and were causing the wood sashes to mold and rot (photos below).  The homeowner wanted solid vinyl replacement windows that would not be susceptible to this problem, so I priced Jeld-Wen’s premium line of replacement windows.  They carry a limited lifetime warranty and feature Energy Star Rating, contoured metal lifts and locks, thicker sash frames, and high-quality full perimeter weatherstrip.  In this case, we upgraded to a Desert Sand color (not just surface paint, but rather solid vinyl color) to closely match the khaki siding.  Looks great, and there will be no problem with a rotting sash or frame!  Problem solved.  Let me know if I can hook you up with some replacement windows; it can be surprisingly affordable.  419-212-3200