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To caulk or not to caulk new vinyl windows?

We just got new vinyl replacement windows installed. Our contractor, who has done tons of great work for us over the years, told us not to caulk these windows between the window and the extension jam. Is this correct? All of our older windows are caulked, but he said no, let the window expand and contract at will. Opinions?

Public Comments

1. LOL!.... you said caulk

   I would do what the guy said