The Pella salesman claims that his replacement windows are better than the Pella replacement windows that are sold at the big box stores. Is that true?
I've done my best to ask the windows people at the big box probing questions. Maybe I haven't found enough questions to ask.
So far, I've only found two differences:
Pella Pella: he says the frames have foam insulation added at the factory. The big box window sales person says they can do that too, for $15 extra per window.
Pella Pella: he says that when they do the installation, they bring a small machine to put foam insulation into the wall around the edges. The big box window installer says he uses the fiberglass kind and stuffs it in around the edges because the foam is too messy, and he says the results are the same.
Do either of those matter? Also, what other differences are there? What other questions should I ask? I'm not looking to make my 1940's house a model of energy efficiency. I just want to be more comfortable. Money is a concern for me at this time.
The Pella Pella estimate is about double the big box Pella estimate.