"We had Cover Glass windows put in twice, first in the upstairs Master Bedroom June 2015, then in the downstairs Family Room in November 2015. Both were handled professionally and with excellent results giving our home the Wow factor. They are very careful when prepping the site. They demo the existing windows and doors, measure, put the frame in, measure again, then order the glass and install. The measurements are very important and they treat it as such. Otherwise, the glass won't slide and move properly. I recommend them highly."