CertainTeed. Leading in value since 1904.

As a pioneer in the industry, CertainTeed has been building a strong brand presence in vinyl windows and patio doors for over 25 years. In 2006, CertainTeed was recognized as a leading brand in vinyl windows by JD Power and Associates and has been one of the most recognized brands by builders and contractors nationwide for the last five years.

CertainTeed has long stood for innovation and value in the building materials industry – today producing roofing, vinyl and fiber-cement siding, fiberglass insulation, pipe, fence, deck and railing though facilities nationwide. CertainTeed strives to be the preferred choice for innovative building products and systems.

In 2008, MI Windows and Doors partnered with CertainTeed to manufacture, market and distribute the CertainTeed brand for windows and patio doors in the eastern United States and eastern Canada. The CertainTeed brand has proven to be a strong, trusted and well respected name creating opportunities for MI’s customers, team members and supply partners.