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
  • 4456765 Nova Scotia Limited
  • 9203-8959 Quebec, Inc.
  • 92976836 Quebec Inc. (Fenbec)
  • A Window Inc. dba American Window Systems
  • A.B.A. Fenestration Inc.
  • A.J. Manufacturing, Inc
  • A-Apollo Windows & Doors, Ltd.
  • Aarohi Corporation
  • ABI Windows, LLC
  • ABS- American Building Supply
  • Acadia Windows and Doors
  • Access Windows and Doors, Inc.
  • ACME Duplex Windows and Doors dba Paramount Windows and Doors
  • Active Doors & Moulding, Ltd.
  • Acurlite Structural Skylights, Inc.
  • Aeroframe (USA), Inc.
  • AFPEC, Inc.
  • AGL Glazing, Inc.
  • Airtite Products, LLC
  • All Seasons Door & Window, Inc.
  • All Seasons Window & Door Manufacturing, Inc.
  • Alpen HPP, Inc.
  • Altitude Windows
  • Alucorp SA DE CV (interalum)
  • Alumalco Corporation (9514759 Canada Inc.)
  • Alumidec, Inc. (9115-3403 Quebec Inc)
  • Aluminart Architechural, Inc.
  • Aluminium Caruso & Fils Inc.
  • Alumix, LLC
  • American Openings, Inc.
  • American Window Manufacturing, LLC
  • Ameritech Millworks, LP
  • AMTOP Windows Corporation
  • Anchor Home Products, Inc.
  • Anhui Guo Jian Door & Window Curtain Wall Engineering Co., Ltd.
  • Anhui Hotian Doors & Windows Company, Ltd.
  • Anig Window Manufacturing Limited
  • APEX Building Technology, Inc.
  • Apollo Building Products, Inc.
  • Architectural Millwork
  • 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.
  • 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.
  • Bigfoot Door, Inc.
  • 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
  • Boston Sash and Millwork, Inc.
  • Broad Building Supply
  • Brockway-Smith Company
  • Bucalu Aluminium Window & Door System Co. Ltd.
  • Builders First Source, Inc.
  • Builder’s Hardware, Inc.
  • Cameron Ashley Building Products
  • Can-Save
  • Canada XF Ltd.
  • Canadian Vinyltek Window Corporation
  • Caoba Doors
  • Cayman Manufacturing Inc.
  • Century Curtain Wall USA Corporation
  • Champion Glass, Inc.
  • Chinook Windows
  • Clarity Aluminum Windows & Doors, LLC
  • 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.
  • 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.
  • Danpal North America
  • Dashwood Industries, Inc.
  • Dayside Industries, Ltd.
  • Del Windows & Doors
  • Diamond Windows & Doors
  • Dionne Architectural
  • Door Way Canada
  • Dunbarton Corporation
  • Durable Window Industry Co., Ltd.
  • Dusco Doors, LTD (Stanley Black & Decker Corporation)
  • DV Aluminium and PVC
  • DW Distribution
  • Dyke Industries, Inc.
  • Dyke Industries, Inc. – Atlanta
  • Dyke Industries, Inc. – Indiana
  • 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
  • ESR Impact System, LLC
  • Eurocraft Industries, Inc.
  • Euroline LLC dba SkyHouse European Windows and Doors
  • Euroline Windows, Inc.
  • Fabricant Fenetres Ecoverte
  • FASEC (Hangzhou) Window Wall Co., Ltd.
  • Fene-Tech, Inc.
  • Fenetre Polyco, Inc.
  • 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.
  • Fleetwood Aluminum Products, LLC
  • Form-Tech
  • Forte Crafts, Inc. dba Glass Design Corporation
  • Forum Supply, LLC
  • Foshan Aluguard Window & Door Company, Ltd.
  • Foshan Beilu Doors and Windows Co. Ltd
  • Foshan Deezon Windows and Door Co., Ltd.
  • Foshan Desiesi Home Technology Co., Ltd.
  • Foshan DTOP Windows and Doors Co., Ltd.
  • Foshan Golden Door and Window Co., Ltd.
  • Foshan Hanlun Curtain Wall Door&Window Technology Co., Ltd.
  • Foshan NF Windows & Doors System Co., LTD
  • Foshan Puertana Building Materials, Co. Ltd.
  • Foshan REALGRES Building Materials Co., Ltd.
  • Foshan Sungye Doors & Windows Co. Ltd.
  • Foshan Wei Bo Window & Door Co. Ltd.
  • Foshan Xiaoluban Door & Window Co., Ltd.
  • Foshan Zhangmenren Building Materials Company, Ltd.
  • Four Seasons Solar Products, LLC
  • Frank by Ostaco, Inc.
  • Fujian Dengzhen Industrial Co., Ltd
  • G.I.T. Doors & Windows
  • Georgia Windows & Doors (Shenzhen) Limited
  • Giguere Portes et Fenetres, Inc.
  • Gilkey Window Company
  • Gilwin Windows Corporation
  • Glass America Window Manufacturing, Inc.
  • Glasscraft Door Co.
  • Great Lakes Window, Inc.
  • Greborn Global, LLC
  • Group Wilton Panorama
  • Guang Dong Color Master Building Products Co., Ltd
  • Guangdong Dejiyoupin Doors and Windows Co. Ltd.
  • Guangdong Eehe Doors & Windows Technology Company, Ltd.
  • Guangdong Golden Building Materials Co., Ltd.
  • Guangdong ODICK Intelligent Home Technology Co., Ltd
  • Guangdong Saluokai Home Furnisings Co. Ltd.
  • Guangdong Trango Home Technology Co., Ltd.
  • Guangdong Yuegangwan Building Materials Co. Ltd.
  • Guangzhou Alufront Aluminium Company, Ltd.
  • Guangzhou APRO Building Material Co., Ltd.
  • Guangzhou Topbright Building Materials Co., Ltd.
  • Guangzhou Xiya Building Material Co., Ltd.
  • Guida Inc. dba Guardian Entry Systems
  • Hangzhou Minglei Industry Co., Ltd.
  • Harbin Sayyas Windows Stock Co., Ltd.
  • Harris Door and Millwork, LLC
  • Harvey Building Products, Inc.
  • Heartland Window Manufacturing
  • Hebei Orient Sundar Windows Co., Ltd.
  • Hebei Penjoy Windows and Doors Company, Ltd.
  • Hebei Xinaosi Doors & Windows Co., Ltd.
  • Heister House Millworks, Inc.
  • Heritage Portes et Fenetres, Inc.
  • Hi-Tech Energy Windows, Ltd.
  • Hihaus Company, Ltd.
  • Hope’s Windows, Inc.
  • Housing Products I, LLC
  • Hull Millwork, LLC
  • Hunan Greensee Doors & Windows Curtain Wall Co., Ltd.
  • Husky Portes et Fenetres, Inc.
  • Huttig Building Products
  • Ideal Window Manufacturing
  • IDP, Inc.
  • Infinity Windows and Doors Corporation
  • Inkster Park Millwork, Ltd.
  • Innotech Windows & Doors, Inc.
  • Intus Windows
  • Iron Lion Entries, LLC
  • Isothermic
  • ITZ Doors LLC (Xiamen Fortune Iron Ware)
  • J & M Glass Company, Inc.
  • Jantek Industries, LLC
  • JELD-WEN, Inc.
  • Jiangsu Joulos Curtain Wall Construction Engineering Co., Ltd.
  • Jiangxi Fangda Tech Company, LTD
  • Jim’s Prehung Doors, Ltd.
  • JM Building Supply
  • JOCRI Windows and Doors Mfg, Ltd.
  • Joysland Door & Window (Shanghai) Co., Ltd.
  • Kalwall Corporation
  • Kamoska Company LLC
  • Kehl Window Systems, Inc.
  • Keller Minimal Windows by Aluk SA
  • Kensington HPP, Inc.
  • Kimal Lumber Co.
  • Kimsun Group Co., Ltd.
  • Kingspan Light & Air Fenestration, Inc.
  • Kingspan Light & Air Fenestration, Inc. (TX)
  • Kowasen Building Materials, Co., Ltd.
  • KP Building Products Limited
  • Kramer Window Company
  • KTB Group, LLC
  • Kulu Windows & Doors, Ltd.
  • La Cantina Doors
  • LAS Enterprises
  • Latulippe Portes & Fenetres Corporation
  • Lawson Industries, Inc.
  • Leonardo North America
  • LePage Millwork
  • Les Chassis Nigadoo
  • Les Fenetres Elite, Inc.
  • Les Fenetres Quebecoises
  • Les Industries Melymax, Inc.
  • Les Portes A.R.D., Inc.
  • Les Portes Decko, Inc.
  • Les Portes et Chassis Eddy Boulet, Inc.
  • Liangjia Building Materials (Guangdong) Co. Ltd
  • LIKI Window Systems (DG) Co., LTD.
  • Lippert Components, Inc.
  • Lorendo, Inc.
  • LuxView, LLC
  • Luxvue Ltd. dba TRU Architectural
  • M.R.J. Wood Products, Inc.
  • MAC Façade Group, 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
  • Maxima Profil Nord SRL
  • MDL Door Systems
  • 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)
  • 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.)
  • NuVu Window & Door, LLC
  • NVR Building Products
  • NVR Building Products, Inc. (FL)
  • NZP Fenestration
  • Ocean Doors and Windows, Inc.
  • Ongoing Further Group, LLC
  • Optimum Window Manufacturing Corp. dba Optimum Fire-Rated Windows & Doors
  • Origin USA, Inc.
  • Ozone Windows, Inc.
  • P. E. Perusse Et Fils, Inc.
  • Pacifica Vinyl Windows
  • PALMA Door Systems, Inc.
  • Palmer-Donavin Manufacturing Company
  • Panoramah America
  • Paradis Portes d’acier Inc.
  • Parksite Corporation
  • Pella Corporation
  • Physical Security, LLC
  • Piva Group SPA
  • Plastpro, Inc.
  • Ply Gem Canada (Gienow Canada, Inc.)
  • Ply Gem Window Group
  • Plyco Corp. dba Modern Door Corp.
  • Polaris Technologies
  • 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 Nouvel Horizon Inc.
  • Portes Metalliques Jacob, Inc.
  • Précision Portes D’Acier
  • Prime Window Systems
  • Produits de Fenestration Artik, Inc.
  • PuertanaTek America
  • PVC Regional (15449936 Canada Inc.)
  • Qingdao Jolong Window, Door & Curtain Wall Company, Ltd.
  • Qingdao Jervin Household Co., Ltd
  • Quaker Window Products
  • Quan Dat Trading and Production Co., Ltd.
  • Quantum Door Company, Ltd.
  • Queen’s Doors, Inc.
  • Ram Enterprises Inc. dba Noble Windows & Doors
  • Reeb Millwork Corporation
  • REFLEC, Inc.
  • Regency Plus, Inc.
  • Renaissance Windows & Doors, Inc.
  • Reserve Windows, LLC
  • Residential Building Supply
  • Retro Teck Window Mfg.
  • Richmond Building Supplies Co. LTD.
  • Rismondo Design, LLC
  • Riviera Bronze Manufacturing
  • RMC Duraweld, Inc.
  • Robinson Windows, LLC
  • Rocco Building Supplies LLC
  • Rogue Valley Door
  • Royal Aluminum Company Inc.
  • Rusco Manufacturing, Inc.
  • SC Lipoplast SRL (3 Euro Windows LTD.)
  • Scheel Windows
  • Senco Industries
  • Serramenti Brombal SRL
  • Shandong Bieye Window Technology Co., Ltd.
  • Shandong Changyi Door & Window Eng. Co., Ltd.
  • Shandong Doorwin Construction Co, Ltd.
  • Shandong Huada Window Door & Curtain Wall Co., Ltd.
  • Shandong Lvdun Doors and Windows Co., Ltd.
  • Shandong Meidao System Door & Window Co. Ltd.
  • Shandong Milan Windows, Doors and Curtain Walls Co., Ltd.
  • Shandong New Passive System Windows & Doors Co., Ltd.
  • Shandong Super Window House Company, Ltd.
  • Shandong UKEA Doors & Windows Co., Ltd
  • Shanghai Mylch Windows & Doors Mfg Co., Ltd.
  • Shanghai Superhouse Building Material Co., Ltd.
  • Shanghai YY Windows Co., Ltd.
  • Shenzhen AMJ Technology Co., Ltd
  • Schonline, Inc.
  • 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
  • Skate Beijing Intelligent Technology Co. Ltd.
  • Sky-Frame, Inc. AG (R&G Metallbau AG)
  • SLEEK (Shanghai) Intelligent System Co. LTD
  • Slowinscy Sp 200 spk
  • Solar Innovations
  • Sonata Windows, Inc.
  • Soniq Windows and Doors (Guangdong Kerun Curtain Wall Co. Ltd.)
  • Southeastern Door Company (Jupiter Glass Specialties)
  • Southern Glass Works, Ltd.
  • Southern Shade Window and Door, Inc.
  • Southwood Doors, LLC
  • Stage Windows, Inc.
  • Starlink Building Supply, Inc.
  • State Metals Group, Inc.
  • Stately Doors & Windows, LLC
  • Stier Supply Company
  • Strassburger Supplies Ltd.
  • Sunrise Windows, Ltd.
  • Sunset Windows and Doors, LLC
  • Supreme Windows and Doors (2005) Ltd.
  • Suzhou Tryba Building Materials Technology Co.,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
  • Top Windows, 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.
  • Valo Windows & Doors (Sticks Supply Co. LLC)
  • VDK Windows & Doors
  • Ventanas JM
  • Ventanas Totales, S.A.
  • Versatile Fenestration, Inc.
  • Vezina et Fils
  • View Scapes, LLC
  • Viewmax Windows and Doors, Ltd.
  • VIG Windows (Shandong) Co., Ltd
  • Vinyl Sash of Flint, Inc.
  • Vinylmax LLC
  • Viroks Inc. dba Herrero Steel Doors & Windows
  • 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
  • Weifang Guoyi Aluminum Company, Ltd.
  • WELLSTE Material Company, Ltd. (Shandong Livdun Doors and Windows)
  • Wesco International (Chongqing McMason Doors Tech Co. Ltd)
  • West Window Corporation
  • Wholesale Building Materials
  • Willamette Windows Corporation
  • Wilson Lumber Company
  • Wincore Window Company, LLC
  • Window Tech Systems, Inc.
  • Windows Limited Edition SL
  • Wood On LLC dba MW Millworks
  • WU KONG (S) PTE., LTD. (H.R.D. Singapore Pte., Ltd.)
  • Yantai Brightway Window Solutions Co., Ltd.
  • Yantai Feilong Green Building Materials Technology Co., Ltd.
  • Yantai Join Green Construction Engineering Co., Ltd.
  • Yanyi International Trade Company, Ltd.
  • Yesler Towers, LLC (He Syu Aluminum Company, Ltd.)
  • YKK AP America, Inc.
  • Young Corporation of America dba Durabold
  • YuXinYunTong (Tianjin) Technology Co., Ltd.
  • Zarsky Lumber Company
  • Zephyr Windows, Inc.
  • Zhangjiangang Minetal Imp. & Exp. Co., Ltd.
  • Zhejiang LoKabo Intelligent Technology Co., Ltd.
  • Zhongshan Dajiang Windows & Door Co., Ltd