Make sure the windows are water tested (by yourself) before they are installed because the company will only put some caulk on them after they are installed. I am told, THAT is company policy. My window leaked because of their POOR quality control and the seal was installed badly and not detected until it rained after installation. They SAY they can't catch all the flaws and the ONLY policy they have to correct the leaking window is to put calk where the leak is (not correct the problem where they improperly installed the seal). Just don't expect after market help if there is a problem with Ply Gem windows!
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