Top 100 Manufacturers 2016


*Fortune Brands Home & Security

Product Lines: Therma-Tru fiberglass and steel entry doors, and fiberglass patio doors (; Fypon synthetic trim and millwork components (

*Marvin Windows and Doors

Product Lines: Wood, clad-wood and fiberglass windows and patio doors under the Marvin, Integrity and Infinity brand names.

*Masco Corp.

Product Lines: Wood, fiberglass, vinyl and aluminum windows and patio doors sold under the Milgard Windows & Doors brand name (

*Ply Gem

Product Lines: Vinyl windows; vinyl, vinyl-clad wood, wood, aluminum-clad wood and aluminum patio doors. Sold under the Ply Gem, Simonton Windows & Doors (, and Great Lakes Windows ( brand names. In Canada, Ply Gem’s subsidiary, Gienow Renovations (, manufactures vinyl, aluminum clad vinyl and aluminum clad wood windows and patio doors, as well as fiberglass and steel entry doors.

*Sales information not confirmed by company.