Advice on fiberglass windows
I'm looking to replace the windows in my 60s-era townhouse with fiberglass ones and was wondering if there are some brands other than Marvin, Inline, and Pella that I should consider.
Also, how big a difference would it make to use casements in place of sliders in terms of energy use. In the price quote I've gotten for Marvin Integrity windows, the cost of the casements are about $420 more than the sliders for each window, which seems like a pretty wide gap.
Thanks in advance for your help!