I did not have a good experience here. I went in ...

I did not have a good experience here. I went in seeking to get quieter windows for our bedroom, which is near a highway. The gentleman I talked to was very nice, but he was not very helpful.

According to him, my best bet was to install two new windows at a price tag of $5,000 -- and then he said I might also need to add more drywall after that (interestingly, his mother worked in drywall). This is insane.

We ended up purchasing two acoustic-grade Indow Window inserts (elsewhere) for a total of $700 which absolutely blocked all noise from those windows. (It's not the best solution because the windows don't open, but the sound performance is utterly amazing.) But the gentleman I talked to never mentioned the existence of such a product.

He could have also mentioned the idea of just replacing the glass in the (Pella) windows, which would have run about $1,500, but he did not. Going from standard dual-pane glass (which we have now), to a dual-pane window with one of the panes laminated, with thicker glass, with differing thicknesses between the two panes, and with the largest air gap between the panes (in that order of importance) would reduce the sound transmission by at least 10 dB, which is, perceptually, half.

He was ready to let us pay $5,000 to fully replace two small windows (...stucco styrofoam framing on the outside added complexity) when there were far better options. Now that I've fully researched this topic, I'm very disappointed in the advice and options he gave.