I have the same problem with dry rot in my garage window. I touched base with Anderson on-line but was not very statisfied with their interest in my problem. They wanted me to give them the information on the window that displayed the etched A/W data. My windows were installed in my house back in late Sept. 1975, and there are no such etchings on the sash. Anderson said there has to be an etching.
Anderson didn't offer to send out a rep.,but did give me a name of an independent contractor to call.
Any suggestions on how I can get a rep. to visit my house? I live in Naperville Ill.