As an Authorized Installer for MI Windows and Doors, we are proud to present our customers with a brand that designs and fabricates windows and doors with precision and integrity. MI Windows and Doors has state-of–the-art facilities, one-of-a kind quality management program, and robust in-house test walls to ensure they meet and often exceed industry standards. The engineering team conducts relentless testing which goes beyond what is required for AAMA (American Architectural Manufacturers Association) and NFRC (National Fenestration Rating Council).