This section has been further divided by time zone for their manufacturing facilities as most of the companies in this category are regional players. The ones remaining on this page are most likely national players.
Eastern Time Zone Manufacturing
Central Time Zone Manufacturing
Mountain and Pacific Time Zone

Atrium Door & Window Company
Atrium is the largest manufacturer of residential vinyl and aluminum windows and patio doors in North America. Its Silent Guard™ line of sound abatement products provides STC ratings up to 48 and its SafeHarbor® impact windows and doors are designed to exceed coastal hurricane test protocols. Atrium’s products are available nationally through industry leading distributors and builders.

Kolbe & Kolbe Millwork Co.
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One of the nation's leading manufacturers of premium windows and doors. After 60 years, our products are known for superior quality, custom craftsmanship, attention to detail, as well as innovative and unique designs. The extensive product line includes extruded aluminum clad, roll-formed aluminum clad, wood and vinyl windows and doors, as well as fiberglass doors. Available in a wide array of sizes and styles, with many options to choose from.

Milgard Windows
For over 40 years Milgard extrudes our own vinyl components for best quality and consistency - Voted 6 years - Best Quality in Nation by Builder Magazine. Milgard meets/exceeds criteria for structural integrity and reliable performance established by American Architectural Manufacturers Association (AAMA). Built for a lifetime, choose from our full line of vinyl, aluminum, woodclad & fiberglass windows & doors.

Pella Corporation
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Encompass by Pella™ vinyl windows and patio doors are an option for many multi-family and other nonresidential projects - either new construction or renovation. They're available in a wide variety of sizes, styles and frame types and provide superior energy efficiency at competitive prices. Best of all they are backed by Pella.

Wasco Products
Bring the sun indoors with our stylish glass door systems. Like the entire Wasco line, our top quality rolling and swinging glass doors are made for easy installation and long-lasting use. Heavy-walled, multi-chamber vinyl extrusion system and heavy galvanized steel reinforcements. Available with a choice of glazing, security locks, frame colors and other options.
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See also: Fiberglass Windows

Atrium Door & Window Company
Atrium is the largest manufacturer of residential vinyl and aluminum windows and patio doors in North America. Its Silent Guard™ line of sound abatement products provides STC ratings up to 48 and its SafeHarbor® impact windows and doors are designed to exceed coastal hurricane test protocols. Atrium’s products are available nationally through industry leading distributors and builders.

Kolbe & Kolbe Millwork Co.
![]()
One of the nation's leading manufacturers of premium windows and doors. After 60 years, our products are known for superior quality, custom craftsmanship, attention to detail, as well as innovative and unique designs. The extensive product line includes extruded aluminum clad, roll-formed aluminum clad, wood and vinyl windows and doors, as well as fiberglass doors. Available in a wide array of sizes and styles, with many options to choose from.

Milgard Windows
For over 40 years Milgard extrudes our own vinyl components for best quality and consistency - Voted 6 years - Best Quality in Nation by Builder Magazine. Milgard meets/exceeds criteria for structural integrity and reliable performance established by American Architectural Manufacturers Association (AAMA). Built for a lifetime, choose from our full line of vinyl, aluminum, woodclad & fiberglass windows & doors.

Pella Corporation
![]()
Encompass by Pella™ vinyl windows and patio doors are an option for many multi-family and other nonresidential projects - either new construction or renovation. They're available in a wide variety of sizes, styles and frame types and provide superior energy efficiency at competitive prices. Best of all they are backed by Pella.

Wasco Products
Bring the sun indoors with our stylish glass door systems. Like the entire Wasco line, our top quality rolling and swinging glass doors are made for easy installation and long-lasting use. Heavy-walled, multi-chamber vinyl extrusion system and heavy galvanized steel reinforcements. Available with a choice of glazing, security locks, frame colors and other options.