Marvin Window, Infinity, Double Hung / Poor window construction, leaks air and noise from the street, was supposed to cure both problems, it did neither. Don't buy Marvin.
We had one Marvin window insert replaced by a complete Marvin window. Double hung, 40" x 50", Infinity, STC/OITC, LOE 366 W/Argon, The noise from the street traffic is just as loud as before replacement. The gap between the double window's inner pane and the outer pane was less than the replaced insert. Supposed thicker outer glass does not help to reduce the noise. Would like to return the window. The installation by our local company was excellent, however the window is subpar and cost $1, 600. installed. How should I proceed to get refund for the window cost??