We had several weather delays and schedule conflicts but Mark was very accommodating and moved our installation to a time that worked for us. Brandon, our job foreman, was outstanding – professional, courteous and friendly. The entire replacement took a little longer than anticipated but was due to extremely cold weather. At final inspection there were small flaws noticed on 12 of the double hung bottom slider and Mark immediately ordered replacements at no additional charge to us. I would recommend this company to anyone considering replacement windows.