NFRC accredited Testing Laboratories conduct physical tests (U-factor, Air Leakage, SHGC, and VT) on window, door, skylight, TDD, and glazed wall systems in accordance with NFRC standards.

See the table below for the NFRC test methods each laboratory is accredited to perform.

Thermal Testing Laboratory
Building 28, CSIR Campus
Meiring Naude Drive
Brummeria, Pretoria 0184
South Africa
Telephone: 011-27 (82) 579-5164
Contact: Gerrit Genis

Quast Consulting and Testing, Inc.
1055 Indianhead Drive
Mosinee, Wisconsin 54455
Telephone: 715/693-8378
Facsimile: 715/693-0689
Contact: Brian Sasman

National Certified Testing Laboratories, Inc.
5 Leigh Drive
York, Pennsylvania 17402
Telephone: 717/846-1200
Facsimile: 717/767-4100
Contact: Steve Coble, Ray Lamb

NCTL-NW
3310 Hill Avenue
Everett, Washington 98201
Telephone: 425/259-6799
Facsimile: 425/259-4936
Contact: Ray Faust

Fenestration Testing Laboratory
8148 NW 74th Avenue
Medley, Florida 33166
Telephone: 305/885-3328
Facsimile: 305/885-3329
Contact: Jose Sanchez

Element Materials Technology
662 Cromwell Avenue
St. Paul, MN 55114
Telephone: 651/659-7353
Fax: 651/659-7348
Contact: Mathew Botz, Karl Wigert

Architectural Testing, Inc.
130 Derry Court
York, Pennsylvania 17402
Telephone: 717/764-7700
Facsimile: 717/764-4129
Contact: Michael Thoman, Shon Einsig, Michael Stremmel

Architectural Testing, Inc.
2524 East Jensen Avenue
Fresno, California 93706
Telephone: 559/233-8705
Facsimile: 559/233-8360
Contact: Leaton Kirk, Kenny White, Tyler Westering

Architectural Testing, Inc.
849 Western Avenue North
St. Paul, Minnesota 55117
Telephone: 651/636-3835
Facsimile: 651/636-3843
Contact: Daniel Johnson, Michael Resech

Architectural Testing, Inc.
22155 68th Avenue South
Kent, WA 98032
Phone: 253-395-5656
Fax: 253-395-5657
Contact: Brian Rasmussen

Air-Ins, Inc.
1320 Boul. Lionel-Boulet
Varennes, Quebec J3X 1P7
Telephone: 450/652-0838
Facsimile: 450/652-7588 |
Contact: Gilbert Riopel, Jean Miller

*Last Updated: 4/19/2013