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MI Windows and Doors is a prominent American manufacturer specializing in a wide range of high-quality, energy-efficient windows and patio doors. They cater to both new construction and replacement markets, offering products primarily in vinyl and aluminum. Known for their commitment to quality, innovation, and customer satisfaction, MI serves residential homeowners, builders, and remodelers across the United States. The company emphasizes precision manufacturing and offers a variety of styles and features to meet diverse architectural and performance needs. MI Windows and Doors is a subsidiary of PGT Innovations.
Serves as the primary corporate office, overseeing strategic operations, product development, national sales, marketing, and administrative functions for MI Windows and Doors.
The Gratz facility is a significant manufacturing site in addition to housing corporate offices, embodying the company's core business of window and door production. It likely features advanced manufacturing lines and R&D capabilities.
The work culture at MI Windows and Doors headquarters likely emphasizes collaboration, quality craftsmanship, continuous improvement, and a customer-centric approach, blending corporate professionalism with manufacturing floor efficiency.
The Gratz headquarters is central to MI's identity and operational control, having been its home base for many years, driving its growth and reputation in the fenestration industry.
MI Windows and Doors primarily operates within the United States. Its manufacturing facilities and distribution networks are strategically located across the country to serve various regional markets effectively. While its core business is domestic, as part of PGT Innovations, it benefits from the broader operational insights of a larger entity which may have some international material sourcing or partnerships.
650 West Market Street
Gratz
PA
USA
Address: 7770 E Fenster Dr, Prescott Valley, AZ 86315
Supports sales, distribution, and manufacturing for the Southwest and West Coast markets, ensuring timely delivery and regionally-adapted product offerings.
Address: 1200 Lakeside Pkwy, Flower Mound, TX 75028
Acts as a strategic hub for efficient logistics, customer service, and manufacturing catering to the robust housing market in Texas and surrounding states.
Address: 800 Industrial Park Dr, Millen, GA 30442
Enhances MI's ability to serve the Southeast market with locally manufactured products, optimizing supply chain and customer response times.
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As of April 2025, MI Windows and Doors' leadership includes:
MI Windows and Doors has been backed by several prominent investors over the years, including:
Key executive roles at MI Windows and Doors are often integrated with its parent company, PGT Innovations. Significant changes at PGT Innovations would impact MI. The most notable recent event is the pending acquisition of PGT Innovations by Masonite, which will likely lead to leadership integrations post-closing.
Discover the tools MI Windows and Doors uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
MI Windows and Doors, like many corporations, likely uses standardized email formats. The most common formats for companies of this nature are [firstinitial][lastname]@domain.com or [firstname].[lastname]@domain.com.
flast@miwindows.com (e.g., jdoe@miwindows.com) or first.last@miwindows.com (e.g. jane.doe@miwindows.com)
Format
jsmith@miwindows.com
Example
80%
Success rate
PGT Innovations IR • January 16, 2024
PGT Innovations, Inc. (NYSE: PGTI), the parent company of MI Windows and Doors, announced it has entered into a definitive agreement to be acquired by Masonite International Corporation (NYSE: DOOR) in a transaction valued at approximately $3 billion. The combination is expected to create a leading door and window solutions company....more
PGT Innovations IR • November 2, 2023
PGT Innovations announced its financial results for the third quarter of 2023, highlighting performance across its brands, including MI Windows and Doors. The report detailed net sales and discussed market conditions affecting the window and door industry....more
Window + Door Magazine • May 4, 2023
PGT Innovations named Bob Keller as President of its Southeast Business Unit, which includes brands like CGI Windows & Doors and PGT Custom Windows & Doors, impacting the broader strategic direction that also encompasses MI Windows and Doors' regional operations....more
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