I just renovated/built a new recording studio in my home, which has a lot of window space so I needed windows (one piece as well as sliders) that REALLY prevented sound from coming in and lot of sound from going out. I'm very pleased to say Encore's windows perform surprisingly well! Mike Montecalvo was very pleasant to deal with....very patient and great at explaining the various options for soundproof windows. His crew did the installation very professionally. They took their time and explained their methods very well.
Although the windows took a while to manufacture, to be fair they were created for quite a unique application, and the results are great.
I would definitely recommend this company to anyone who's interested in getting windows to cut down on outside noise.
Gary.