Renewal By Andersen sprouted out of Andersen Corporation, a 100-year-old company that touts itself as the largest window and door manufacturer in the country. And beyond its thoroughly trained technicians, dependable warranties, and commitment to the environment, this fact might be its biggest benefit to customers—being owned by a window manufacturer means that the company has virtually endless flexibility to create windows and doors that exactly match its customers' wishes. The window-replacement process begins with an in-home consultation to acquaint homeowners with their options and measure the areas that need replacing. Once a plan is in place, teams of technicians with years of experience under their belts carefully place and seal each custom-made window to ensure cold air can't invade and the sounds of nightly karaoke practice can't escape. Homeowners then rest assured that their new panes will keep them cozy for years to come, thanks to a powerful limited warranty.