Sorry, Charlie. Even a window as great as the Insignia could fall short of its potential if not installed correctly. That’s why we don’t take any chances with your installation — we only put your windows in the hands of a certified Apex Master Installer. Our Masters have a minimum of seven years’ of experience, factory certification on Insignia, are OSHA, AAMA, and EPA Lead certified, and have also passed an Apex Customer Care program.