Comment: In 2018 Mount Pleasant windows replied all my old Anderson windows with Quantum top of the line windows.
I conducted an ultrasound test on old windows and new.
The results around the windows and threw the glass was staggering.
A significant reduction from an average of 47 decibels to 7 decibels was immediately present even within the large bay windows (three in total)
Two minor repairs were immediately addressed and service is impeccable.
One small permanent window (picture in between two casements) has cracked but an entire glass replacement is on order, instead of simply replacing one pane they replace entire glass to ensure durability long term. Yes its a significant investment but I am comfortable with some 30 windows in place in 3 to 5 years easily returned in savings here on the mountain.
Thank you
To the entire Mount Pleasant window team.