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:

  • 3M
  • 9203-8959 Quebec, Inc.
  • 92976836 Quebec Inc. (Fenbec)
  • 9388-0169 QC, Inc. (Fenetres NF)
  • 9418-5311 Quebec, Inc. (Qualum International)
  • A Window Inc. dba American Window Systems
  • A.B.A. Fenestration Inc.
  • A.J. Manufacturing, Inc
  • A-Apollo Windows & Doors, Ltd.
  • ABI Windows, LLC
  • ABS- American Building Supply
  • Acadia Windows and Doors
  • Access Windows and Doors, Inc.
  • Accurate Door and Hardware Company
  • ACME Duplex Windows and Doors dba Paramount Windows and Doors
  • Acurlite Structural Skylights, Inc.
  • Aeroframe (USA), Inc.
  • AFPEC, Inc.
  • Air Master Awning, LLC
  • Airtite Products, LLC
  • All Seasons Door & Window, Inc.
  • All Seasons Window & Door Manufacturing, Inc.
  • Alpen HPP, Inc.
  • Altitude Windows
  • Alumalco Corporation (9514759 Canada Inc.)
  • Alumidec, Inc. (9115-3403 Quebec Inc)
  • Aluminart Architechural, Inc.
  • Aluminium Caruso & Fils Inc.
  • Alumix, LLC
  • American Construction Enterprises
  • American Openings, Inc.
  • American Window Manufacturing, LLC
  • Ameritech Millworks, LP
  • Anderson Windows
  • Anhui Hotian Doors & Windows Company, Ltd.
  • Anhui Weika Windows & Doors Company, Ltd.
  • Anig Window Manufacturing Limited
  • APEX Building Technology, Inc.
  • 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
  • Artistic Doors & Windows Manufacturing, LLC.
  • Assura Windows & Doors, LLC
  • Astra Fenestration Inc.
  • Atrium Companies, Inc.
  • Aurora Window Systems, Inc.
  • Auroral Portes et Fenetres, Inc.
  • AWG Windows and Doors, LTD.
  • AWILUX Polska Sp. Z.o.o Sp.k.
  • Basikwall, Inc.
  • Beijing North Tech Windows Co. Ltd.
  • 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
  • Blvd Windows & Doors Ltd.
  • BMC Corporation
  • BMC Millwork
  • Boise Cascade, LLC
  • Boone County Millwork
  • Boston Sash and Millwork, Inc.
  • Broad Building Supply
  • Broadview Window and Door, Ltd.
  • 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
  • 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.
  • 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
  • Danpal North America
  • Dashwood Industries, Inc.
  • Dayside Industries, Ltd.
  • Del Windows & Doors
  • Diamond Windows & Doors
  • Dimensions Portes et Fenetres
  • Dionne Architectural
  • Door Way Canada
  • 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
  • Elegant View Windows
  • ENERGI Fenestration Solutions
  • EnergyWall Window & Door
  • Enerlux Windows Z& Doors, LLC (E3 Holdings, LLC)
  • Entryguard Doors, Inc.
  • Eoss System Doors & Windows (Shandong) Co., Ltd.
  • Erickson International, LLC
  • Escon Corporation
  • Eurocraft Industries, Inc.
  • Euroline LLC dba SkyHouse European Windows and Doors
  • Euroline Windows, Inc.
  • Extreme Window & Entrance Systems
  • Fabricant Fenetres Ecoverte
  • FASEC (Hangzhou) Window Wall Co., Ltd.
  • FCI Windows
  • Fene-Tech, Inc.
  • Fenergic
  • Fenetre Polyco, Inc.
  • Fenetres Concept
  • Fenetres Contemporaines
  • Fenetres Gaspesiennes Inc.
  • Fenetres KD Windows (9373 8847 Quebec, Inc)
  • Fenetres Lajeunesse, Inc.
  • Fenetres Magistral Windows, Inc.
  • Fenomax (Gestion Poudrier Inc.)
  • Fenplast Inc.
  • Fibertec Window & Door Mfg.
  • Finesstra Frames Next, Inc.
  • Fiset et Marcotte Inc.
  • Fleetwood Aluminum Products, LLC
  • Form-Tech
  • Forte Crafts, Inc. dba Glass Design Corporation
  • Forum Supply, LLC
  • Foshan Aluguard Window & Door Company, Ltd.
  • Foshan City Zhangmenren Building Materials Company, Ltd
  • Foshan NF Windows & Doors System Co., LTD
  • Foshan Puertana Building Materials, Co. Ltd.
  • Foshan Wei Bo Window & Door Co. Ltd.
  • Foshan Xiaoluban Door & Window Co., Ltd.
  • Foshan YT Aluminum Co., Ltd.
  • Four Seasons Solar Products, LLC
  • Foxworth Galbraith (US LBM LLC)
  • Frank by Ostaco, Inc.
  • Fujian Dengzhen Industrial Co., Ltd
  • 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.
  • Great Lakes Window, Inc.
  • Group Wilton Panorama
  • Guangdong Golden Building Materials Co., Ltd.
  • Guangzhou Alufront Aluminium Company, Ltd.
  • Guangzhou Topbright Building Materials Co., Ltd.
  • Guangzhou Xiya Building Material Co., Ltd.
  • Guida Inc. dba Guardian Entry Systems
  • Harris Door and Millwork, LLC
  • Harvey Building Products, Inc.
  • Heartland Window Manufacturing
  • Heister House Millworks, Inc.
  • Heritage Portes et Fenetres, Inc.
  • Hi-Tech Energy Windows, Ltd.
  • Hihaus Company, Ltd.
  • HM Group USA dba BAW Group, Inc.
  • Hope’s Windows, Inc.
  • Housing Products I, LLC
  • Hull Millwork, LLC
  • Husky Portes et Fenetres, Inc.
  • Huttig Building Products
  • Ideal Window Manufacturing
  • IDP, Inc.
  • Inkster Park Millwork, Ltd.
  • Innotech Windows & Doors, Inc.
  • Intex DoorWin, Ltd.
  • 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.
  • JELD-WEN, Inc.
  • Jim’s Prehung Doors, Ltd.
  • JM Building Supply
  • JOCRI Windows and Doors Mfg, Ltd.
  • Kalwall Corporation
  • Kehl Window Systems, Inc.
  • Keller Minimal Windows by Aluk SA
  • Kensington HPP, Inc.
  • Kento, LTD.
  • Kimal Lumber Co.
  • Kimsun Group Co., Ltd.
  • Kingspan Light & Air Fenestration, Inc.
  • Kleidco Yapi Sistemleri San. Ve TIC. A.S.
  • Kova Products, Inc.
  • KP Building Products Limited
  • Kramer Window Company
  • Kudzu Millwork, Inc.
  • Kulu Windows & Doors, Ltd.
  • La Cantina Doors
  • LAS Enterprises
  • Latulippe Portes & Fenetres Corporation
  • LaValley Building Supply
  • Lawson Industries, Inc.
  • Leonardo SRL
  • LePage Millwork
  • Les Chassis Nigadoo
  • Les Fenetres Elite, Inc.
  • Les Fenetres Enerco, Inc.
  • Les Fenetres Quebecoises
  • Les Industries Melymax, Inc.
  • 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.
  • 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
  • Master Ironworks
  • Master Windows Systems, Inc.
  • 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.
  • Metrie EL & EL, LLC
  • Milliken Millwork, Inc.
  • Millsource Inc. dba Woodgrain Distribution
  • Millwork Sales
  • Mirage Windows, Inc.
  • Modena Window Design, LLC
  • Monarch Materials Group, Inc.
  • Moss Supply Company
  • MP Windows, Inc. (Hotel Windows)
  • MQ Windows
  • Multi Side Mill Supply, LLC
  • Multi-Fenetres (2001)
  • NANA Wall Systems, Inc.
  • Nanaks Industries, Ltd.
  • Natural Light Energy Systems
  • NewSouth Window Solutions
  • NORC Windows & Doors, Inc.
  • Nordik Windows, Inc.
  • Nan Ya Plastics Corp./Neuma Doors
  • North Home Windows (Northome Comfort Windows, Inc.)
  • NVR Building Products
  • NZP Fenestration
  • Ocean Doors and Windows, Inc.
  • Optimum Window Manufacturing Corporation
  • Origin USA, Inc.
  • Ozone Windows, Inc.
  • P. E. Perusse Et Fils, Inc.
  • Pacifica Vinyl Windows
  • PALMA Door Systems, Inc.
  • Palmer-Donavin Manufacturing Company
  • Panes Window Manufacturing, Inc.
  • Panoramah America
  • Paradis Portes d’acier Inc.
  • Parksite Corporation
  • Pella Corporation
  • PF Concordia W + D, 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
  • Porte et Fenetre Imperial, Inc.
  • Portes d’Acier Alumican, Inc.
  • Portes et Fenetres Abritek, Inc.
  • Portes et Fenetres Ebi-Tech, Inc.
  • Portes et Fenetres Fusion
  • Portes et Fenetres JM Ferron Enr.
  • Portes et Fenetres Nouvel Horizon Inc.
  • Portes et Fenetres President Inc.
  • Portes et Fenetres Taiga
  • Portes Metalliques Jacob, Inc.
  • PrĂ©cision Portes D’Acier
  • Prime Window Systems
  • Produits de Fenestration Artik, Inc.
  • PuertanaTek America
  • PVC Aluminium, Inc.
  • PVC Regional (15449936 Canada Inc.)
  • Quaker Window Products
  • Quantum Door Company, Ltd.
  • Queen’s Doors, Inc.
  • 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
  • Shandong Huada Window Door & Curtain Wall Co., Ltd.
  • Shandong Lvdun Doors and Windows Co., Ltd.
  • Shandong Super Window House Company, Ltd.
  • Shanghai Mylch Windows & Doors Mfg Co., Ltd.
  • 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)
  • Silvester Glass & Aluminum Products Ltd.
  • Simpson Door Company
  • 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.
  • Sunrise Windows & Doors, LLC
  • Sunrise Windows, Ltd.
  • Sunset Windows and Doors, LLC
  • Supreme Windows and Doors (2005) Ltd.
  • 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
  • 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.)
  • 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.
  • Ventanas JM
  • Ventanas Totales, S.A.
  • Versatile Fenestration, Inc.
  • Vezina et Fils
  • View Scapes, LLC
  • VIG Windows (Shandong) Co., Ltd
  • Vinyl Sash of Flint, Inc.
  • Vinylmax LLC
  • Vision Door & Millwork, LLC
  • Vistamark Enterprises, LLC
  • ViWinTech Window & Door, Inc.
  • VK ECO Glass, LLC
  • W.E.H. Supply Inc.
  • Warren Windows & Doors (Guandong) Co., Ltd.
  • Wausau Supply Company Corporation
  • West Window Corporation
  • Westcoast Prehung Doors, Ltd.
  • Wholesale Building Materials
  • Willamette Windows Corporation
  • Wilson Lumber Company
  • Wincore Window Company, LLC
  • Window Tech Systems, Inc.
  • Yantai Feilong Green Building Materials Technology Co., Ltd.
  • Yanyi International Trade Company, Ltd.
  • Yesler Towers, LLC (He Syu Aluminum Company, Ltd.)
  • YKK AP America, Inc.
  • Zarsky Lumber Company
  • Zephyr Windows, Inc.
  • Zhangjiangang Minetal Imp. & Exp. Co., Ltd.