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NFRC Members

NFRC - National Fenestration Rating CouncilThe National Fenestration Rating Council (NFRC) is now an instrumental and necessary resource when planning to purchase replacement windows for your residential or commercial renovation. It is the sole entity delivering the most precise ratings, and for this reason, it is the only instrument by which the Department of Energy division ENERGY STAR chooses which replacement window products are eligible for the Federal Energy Tax Credit.

There are two categories of possible relationships a company can have with the NFRC. The first is a certificate that the NFRC issues to say that the recipient has allowed the NFRC to test and rate the windows, doors, and skylights according to the guidelines of the NFRC. The second category is NFRC membership. This means that the company has signed up to become a member, paying dues as such, and can then have a say in how and when the ratings are determined. The most important criterium is that the company must be committed to manufacturing replacement windows and new construction windows of all shapes and sizes that are increasingly more energy efficient.

We thought a list of the members of the NFRC would be a decent resource to glance at when considering a purchase, maybe acting as a seal of integrity when a company is listed.

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ABC Windows Contractors

Arbitek Windows & Doors

Accent Windows

Accurate Dorwin

Alside Window Company (division of Associated Materials)

Amerimax Building Products

Amsco Windows

Andersen Corporation

Arcadia Windows

Atria Building Products


B&B Engineering Company

Bekaert Specialty Firms

Best Window & Door Company


C.W. Ohio

California Deluxe Windows

Canada Windows & Doors

Cascade Windows

Champion Windows

Coastal Industries

Comfort Line, Inc.

CP Films (a unit of Solutia)

CR Windows, Inc.

CrystaLite, Inc.

Custom Window Systems


Elite Solar Systems

Euro Tech Window Industries


Far North Windows


Fenomax (Gestion Poudrigr, Inc.)



Gibson Millwork

Gienow Windows & Doors

Gilwin Co.


Harmon Industries

Heartland Window Manufacturing

Home-Guard Windows

Hometime Window


Ideal Window

Interstate Building Materials


J & M Glass

J & S Windows Corp.


Jones Paint & Glass


K & C Industries

KDC Enterprises (Western Skylights)

Kinro, Inc.

Kolbe & Kolbe Millwork Co., Inc.


LbL Window

Lindal Building Products

Lindsay Window

Lockheed Window Corp.


Madico, Inc.

Malta Industries

Marvin Windows

Mercer Windows

Metal Window Corp.

MI Windows & Doors

Milgard Windows

Minntoka Windows

Monda Windows & Doors

Mulia, Inc.


National Vinyl Products

New Morning Windows

Newpro Windows

Novatech Industries


ODL, Inc.


Paradigm Window Solutions

Pella Windows

Pittsburgh-Corning Corp.

Polar Seal Window Corp.

Public Supply Co.


Ram Industries

Robert Bowden, Inc.

Royal Windows & Doors


Seal Craft

Serious Materials

Shwinco Industries

Simonton Windows

Solaris Windows

Southern Window Manufacturing

Southland Windows, Inc.

Southwall Technologies

Specialty Wholesale Supply

Sprouse Building Products, Inc.

Suburban Building Products

Sun-Tek Industries


Turkstra Industries Ltd.


United Window & Door Manufacturing, Inc.

Unlimited Inc.


Valley Glass


Ventana USA

Viceroy Homes Ltd.

Vinyl Design Corp.

Vinyl Window Technologies

Vinylite Windows

Vinylmax LLC


Vtech Industries


Walsh Building Products

Wausau Windows & Window Systems

Weather King Windows & Doors, Inc.

Western Window

Win-Dor, Inc.

WinDoor, Inc.

Window City Industries

Window Factory, The