NAMI is a National Fenestration Rating Council (NFRC) licensed Inspection Agency (IA). The NFRC Certification Program offers fenestration (window and door) manufacturers a third party verified, nationally-recognized method for demonstrating product U Factor, Solar Heat Gain Coefficient (SHGC) and other energy performance characteristics. Products certified under this program must be tested and comply with the following test standards:  

NAMI is a National Fenestration Rating Council (NFRC) licensed Inspection Agency (IA). The NFRC Certification Program offers fenestration (window and door) manufacturers a third party verified, nationally-recognized method for demonstrating product U Factor, Solar Heat Gain Coefficient (SHGC) and other energy performance characteristics. Products certified under this program must be tested and comply with the following test standards:

  • NFRC 100, 200, 300, 400, & 500

To obtain specific information or energy performance ratings for various fenestration products, please visit the NFRC Certified Products Directory.

NAMI is proud to be the NFRC licensed Inspection Agency for the following manufacturers:

  • 2Fold Doors, LLC (Mullionz, LLC)
  • 3M
  • 1788126 Ontario, Inc. dba Door Way Corporation
  • 92976836 Quebec Inc. (Fenbec)
  • A Window Inc. dba American Window Systems
  • A.B.A. Fenestration Inc.
  • A.J. Manufacturing, Inc
  • Abritek Windows & Doors
  • ABS- American Building Supply
  • Acadia Windows and Doors
  • Access Windows and Doors, Inc.
  • ACME Duplex Windows and Doors dba Paramount Windows and Doors
  • Acurlite Structural Skylights, Inc.
  • AFPEC, Inc.
  • Air Master Awning, LLC
  • Airtite Products, LLC
  • All Seasons Door & Window, Inc.
  • All Seasons Window & Door Manufacturing, Inc.
  • Alpen HPP, Inc.
  • Alumalco Corporation (9514759 Canada Inc.)
  • Alumidec, Inc. (9115-3403 Quebec Inc)
  • Alumilex Canada, Inc.
  • Aluminart Architechural, Inc.
  • Aluminium Caruso & Fils Inc.
  • Alumix, LLC
  • American Construction Enterprises
  • American Openings, Inc.
  • Ameritech Millworks, LP
  • Anderson Windows
  • Anhui Weika Windows & Doors Company, Ltd.
  • Anig Window Manufacturing Limited
  • Apollo Building Products, Inc.
  • Architectural Inc. dba Amighini
  • Architectural Millwork
  • Arcon Portes et Fenetres
  • Arlene Stained Glass and Door Company, LP
  • Arm-R-Lite Door Manufacturing Company, Inc.
  • Armwood Windows and Doors
  • Assura Windows & Doors, LLC
  • Astra Fenestration Inc.
  • Atrium Companies, Inc.
  • Auroral Portes et Fenetres, Inc.
  • Barema European Windows and Doors
  • Basikwall, Inc.
  • Beijing Mylch Building Products Co., Ltd.
  • Belletetes, Inc.
  • BenBilt Building Systems
  • Berdick Manufacturing Manitoba, Ltd.
  • Berdick Manufacturing Pacific Ltd.
  • Bildau and Bussman North America GmbH
  • Bisam Cephe Yapi Sistemleri San. ve Tic A.S.
  • Blue Linx Corporation
  • BMC Corporation
  • BMC Millwork
  • Boise Cascade, LLC
  • Boone County Millwork
  • Boston Sash and Millwork, Inc.
  • Broad Building Supply
  • Brockway-Smith Company
  • Brouillette Portes et Fenetres, Inc.
  • Builders First Source, Inc.
  • Builder’s Hardware, Inc.
  • Cameron Ashley Building Products
  • Can-Save
  • Canada XF Ltd.
  • Canadian Vinyltek Window Corporation
  • Caoba Doors
  • Caron et Guay
  • Cayman Manufacturing Inc.
  • Century Curtain Wall USA Corporation
  • Chinook Windows
  • Clayton Windows
  • Climate Solutions Corporation
  • Clopay Building Products, Inc.
  • Club Rodeo Designs & Developments, LLC
  • Co.Me.P Infissi SRL
  • Coastal Industries, Inc.
  • Coastal Innovative Products dba Lanai Doors
  • Cobra Doors 2000 Ltd.
  • Codel Entry Systems, Inc.
  • Coeur D’Alene Window Company
  • Columbia Industries, Inc.
  • Columbia Manufacturing Co. LTD
  • Columbia Metal Products Co.
  • Comfort Line LTD.
  • Comfort View Products, LLC
  • Comfort Window Mfg.
  • Cossins Windows, Ltd.
  • CPI Daylighting
  • Crest Doors
  • Crystal Pacific Window & Door Systems, Inc.
  • Crystal Window & Door Systems, Ltd.
  • Crystalite, Inc.
  • C-Thru Sunrooms
  • Custom Design Company of Central Florida
  • Custom Fenestration Ltd.
  • Dalmen Windows and Doors
  • Dashwood Industries, Inc.
  • Dayside Industries, Ltd.
  • Del Windows & Doors
  • Diamond Windows & Doors
  • Dimensions Portes et Fenetres
  • Dionne Architectural
  • Doers Window Mfg.
  • Doorwin Construction Co, Ltd. (ShanDong Doorwin Construction Co., Ltd)
  • DreamLine Manufacturing, LLC
  • Dunbarton Corporation
  • Dusco Doors, LTD (Stanley Black & Decker Corporation)
  • DV Aluminium and PVC
  • DW Distribution
  • Dyke Industries, Inc.
  • Dyke Industries, Inc. – Atlanta
  • Eastman Chemical Company
  • EL & EL Wood Products, Inc.
  • ENERGI Fenestration Solutions
  • EnergyWall Window & Door
  • Enerlux Windows Z& Doors, LLC (E3 Holdings, LLC)
  • Entreprises Doco, Inc.
  • Entryguard Doors, Inc.
  • Erickson International, LLC
  • Escon Corporation
  • Euroline Windows, Inc.
  • Extreme Window & Entrance Systems
  • FCI Windows
  • Fene-Tech, Inc.
  • Fenergic
  • Fenetre Polyco, Inc.
  • Fenetres AGM (2015), Inc.
  • Fenetres Concept
  • Fenetres Contemporaines
  • Fenetres Gaspesiennes Inc.
  • Fenetres Jalmo
  • Fenetres Lajeunesse, Inc.
  • Fenetres Magistral Windows, Inc.
  • Fenetres Metric, Inc.
  • Fenetres St-Paul
  • Fenetres Summum
  • Fenomax
  • Fenplast Inc.
  • Fibertec Window & Door Mfg.
  • Finesstra Frames Next, Inc.
  • Fiset et Marcotte Inc.
  • Fleetwood Windows and Doors, Inc.
  • Ford Lumber & Millwork Company, Inc.
  • Form-Tech
  • Forte Crafts, Inc. dba Glass Design Corporation
  • Forum Supply, LLC
  • Foshan NF Windows & Doors System Co., LTD
  • Four Seasons Solar Products, LLC
  • Futura Portes & Fenetres
  • G.I.T. Doors & Windows
  • G.R. Theriault LTD.
  • Gerard Milette Portes et Fenetres
  • Giguere Portes et Fenetres, Inc.
  • Gilkey Window Company
  • Gilles Girard et Fils, Inc.
  • Glass America Window Manufacturing, Inc.
  • Glasscraft Door Co.
  • Global Window Solutions, Inc.
  • Great Day Improvements LLC dba Stanek Windows
  • Great Lakes Window, Inc.
  • Groupe Atlanta, Inc.
  • Group Wilton Panorama
  • Guangzhou Alufront Aluminium Company, Ltd.
  • Guida Inc. dba Guardian Entry Systems
  • H. Varin et Fils
  • Harris Door and Millwork, LLC
  • Harvey Building Products, Inc.
  • Heartland Window Manufacturing
  • Hebei Orient Sundar Windows Co., Ltd.
  • Heister House Millworks, Inc.
  • Heritage Portes et Fenetres, Inc.
  • HM Group USA dba BAW Group, Inc.
  • Hope’s Windows, Inc.
  • Housing Products I, LLC
  • Husky Portes et Fenetres, Inc.
  • Huttig Building Products
  • Ideal Window Manufacturing
  • IDP, Inc.
  • Innotech Windows & Doors, Inc.
  • Innovation Windows, LLC
  • Intus Windows
  • Iron Lion Entries, LLC
  • Isothermic
  • ITZ Doors LLC (Xiamen Fortune Iron Ware)
  • J & M Glass Company, Inc.
  • J.E.H. Windows & Doors, Ltd.
  • Jantek Industries, LLC
  • JELD-WEN, Inc.
  • Jiangyin Zhuomei Windows & Doors Company, Ltd.
  • Jim’s Prehung Doors, Ltd.
  • JM Building Supply
  • Kalwall Corporation
  • Kansas City Millwork
  • Kehl Window Systems, Inc.
  • Keller Minimal Windows by Aluk SA
  • Kensington HPP, Inc.
  • Kento, LTD.
  • Kimal Lumber Co.
  • KP Building Products Limited
  • Kramer Window Company
  • Kudzu Millwork, Inc.
  • La Cantina Doors
  • LAS Enterprises
  • Latulippe Portes & Fenetres Corporation
  • LaValley Building Supply
  • Lawson Industries, Inc.
  • Leadwin Doors, Ltd.
  • Leonardo SRL
  • LePage Millwork
  • Les Ateliers Jean Cyr, Inc.
  • Les Chassis Nigadoo
  • Les Entreprises AM St. Tite Inc.
  • Les Fenetres Cote
  • Les Fenetres CPL, Inc.
  • Les Fenetres Elite, Inc.
  • Les Fenetres Enerco, Inc.
  • Les Fenetres Quebecoises
  • Les Industries Melymax, Inc.
  • Les Investissements J.E.T.
  • Les Portes A.R.D., Inc.
  • Les Portes Alain Bourassa, Inc.
  • Les Portes Decko, Inc.
  • Les Portes et Chassis Eddy Boulet, Inc.
  • Les Portes Et Fenetres BM, Inc.
  • Lorendo, Inc.
  • Lowe’s Companies
  • Lumbermen’s, Inc.
  • LuxView, LLC
  • Luxvue Ltd. dba TRU Architectural
  • M.R.J. Wood Products, Inc.
  • Magic Window
  • Main Door Corporation
  • Manic Aluminum, Ltee.
  • Manning Building Supplies
  • Mariotti Building Products, LLC
  • Maritime Door & Window Ltd.
  • Martin Portes et Fenetres/ J. Martin Inc.
  • Martindale Window and Door
  • Masonite International
  • Mastercraft by Midwest Mfg.
  • MasterGrain
  • Mathews Brothers Company
  • MDL Door Systems
  • Menuiserie Basque Et Fils
  • Menuiserie Bolduc Inc.
  • Menuiserie Desmeules, Inc.
  • Menuiserie Lionel Cormier Ltee
  • Mercury Excelum, Inc.
  • Merrill Millwork, Inc.
  • Mid Am Building Supply
  • Milliken Millwork, Inc.
  • Millsource Inc. dba Woodgrain Distribution
  • Millwork Sales
  • Mirage Windows, Inc.
  • Modena Design, Inc.
  • Moehl Millwork, Inc.
  • Monarch Materials Group, Inc.
  • Mondo Manufacturing, Inc.
  • Moss Supply Company
  • MP Windows, Inc. (Hotel Windows)
  • MQ Windows
  • Multi-Fenetres (2001)
  • NANA Wall Systems, Inc.
  • Nanaks Industries, Ltd.
  • Natural Light Energy Systems
  • NewSouth Window Solutions
  • Nordik Windows, Inc.
  • Nan Ya Plastics Corp./Neuma Doors
  • NVR Building Products
  • NZP Fenestration
  • Ocean Doors and Windows, Inc.
  • Optimum Window Manufacturing Corporation
  • Origin USA, Inc.
  • Ouellet Portes et Fenetres, Inc.
  • P. E. Perusse Et Fils, Inc.
  • P. F. Expert 2001
  • Pacifica Vinyl Windows
  • PALMA Door Systems, Inc.
  • Palmer-Donavin Manufacturing Company
  • Panoramah America
  • Paradis Portes d’acier Inc.
  • Parksite Corporation
  • Pella Corporation
  • PF Concordia Windows & Doors, Inc.
  • Pioneer Window and Door Manufacturing, LTD.
  • Piva Group SPA
  • Plastpro, Inc.
  • Ply Gem Canada (Gienow Canada, Inc.)
  • Ply Gem Window Group
  • Plyco Corp. dba Modern Door Corp.
  • Polair 3 Portes et Fenetres
  • Polaris Technologies
  • Portatec
  • Porte et Fenetre Imperial, Inc.
  • Portes d’Acier Alumican, Inc.
  • Portes et Fenetres Ebi-Tech, Inc.
  • Portes et Fenetres Fusion
  • Portes et Fenetres JM Ferron Enr.
  • Portes et Fenetres L.G.C. Inc.
  • Portes et Fenetres Nouvel Horizon Inc.
  • Portes et Fenetres Novoprestige, Inc.
  • Portes et Fenetres President Inc.
  • Portes et Fenetres Taiga
  • Portes et Fenetres Vallee, Inc.
  • Portes Metalliques Jacob, Inc.
  • PrĂ©cision Portes D’Acier
  • Preville Vision Confort
  • Prime Window Systems
  • Produits de Fenestration Artik, Inc.
  • PuertanaTek America
  • PVC Regional
  • Quaker Window Products
  • Qualiglass Windows and Doors, Ltd.
  • Quantum Door Company, Ltd.
  • Raining Threes, LLC
  • Reeb Millwork Corporation
  • REFLEC, Inc.
  • Regency Plus, Inc.
  • Renaissance Windows & Doors, Inc.
  • Residential Building Supply
  • Retro Teck Window Mfg.
  • Richmond Building Supplies Co. LTD.
  • Riviera Bronze Manufacturing
  • Rocco Building Supplies LLC
  • Rogue Valley Door
  • Royal Aluminum Company Inc.
  • Rusco Manufacturing, Inc.
  • SC Lipoplast SRL (3 Euro Windows LTD.)
  • Scheel Windows
  • Serramenti Brombal SRL
  • Shanghai Superhouse Building Material Co., Ltd.
  • Shanghai YY Windows Co., Ltd.
  • Shuster’s Building Components, Inc.
  • Shwinco Architectural Products, LLC.
  • SI Windows and Doors Inc.
  • Simonton Windows (A Ply Gem Company)
  • Simpson Door Company
  • Sisteec, Inc. (Ply Gem)
  • Sky-Frame, Inc. AG (R&G Metallbau AG)
  • Solar Innovations
  • Southeastern Door Company (Jupiter Glass Specialties)
  • Southern Glass Works, Ltd.
  • Southern Shade Window and Door, Inc.
  • Southfield Windows & Doors, Inc.
  • Southwood Doors, LLC
  • Stage Windows, Inc.
  • Starlink Building Supply, Inc.
  • State Metals Group, Inc.
  • Stier Supply Company
  • Strassburger Supplies Ltd.
  • Sunflex Wall Systems, LP
  • Sunrise Windows & Doors, LLC
  • Sunset Windows and Doors, LLC
  • Supreme Skylights, Inc.
  • SW & D, LLC (Pinky’s Iron Doors Corporation)
  • TAM Industries, Inc.
  • Tanner Windows & Doors LLC
  • Tantalus Doors, Ltd.
  • Target Windows and Doors, Inc.
  • Taylor Entrance Systems
  • TCR Glass Dba Peak Windows
  • Texas Window Glass, LLC
  • The Door Store of America, Inc.
  • The Folding Sliding Door Company, Ltd. (FSD Works)
  • The Home Door, Inc.
  • The Window Factory, LTD
  • Therma-Tru Corporation
  • Thermax Aluminum Products Corporation
  • Thermos Vizion, Inc. (8771839 Canada Inc.)
  • TILTCO Div. of Windoworld Industries
  • Touchette Portes & Fenetres, Inc.
  • Trimco Millwork
  • Trimlite, LLC
  • Trinity Glass Internationals
  • Trust Window Corporation
  • Tucker Door & Trim Corporation – Monroe
  • Ultima Fenestration, Inc.
  • Ultimate Windows, Inc.
  • Universal Building Supply, Inc.
  • Vaillancourt Inc.
  • Versatile Fenestration, Inc.
  • Vezina et Fils
  • Vinyl Sash of Flint, Inc.
  • Vinylmax LLC
  • Vistamark Enterprises, LLC
  • ViWinTech Window & Door, Inc.
  • VK ECO Glass, LLC
  • Wausau Supply Company Corporation
  • West Window Corporation
  • Westcoast Prehung Doors, Ltd.
  • Wholesale Building Materials
  • Wincore Window Company, LLC
  • Window Tech Systems, Inc.
  • WU KONG (S) PTE., LTD.
  • Yantai Feilong Construction Curtain Wall & Door & Window
  • Yoder Window and Siding, LTD
  • YKK AP America, Inc.
  • Zarsky Lumber Company
  • Zhangzhou Bewindows Co., Ltd.