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Testing Laboratories > Doors, Windows, Shutters & Glazing Products > Construction > Thermal transmittance, U values (determined by test and/or calculation)

    Element Materials Technology Wednesbury Limited, trading as Element

    Testing Laboratories / 0621

    Unit 3 Wednesbury One, Black Country New Road, Wednesbury, West Midlands WS10 7NZ, United Kingdom
    Telephone +44 (0)121 506 7500  Email [email protected]  Web https://www.element.com/

    Build Check Ltd

    Testing Laboratories / 4044

    Unit 5 Lincoln Park Business Centre, Lincoln Road, Cressex Business Park, High Wycombe, Buckinghamshire HP12 3RD, United Kingdom
    Telephone +44 (0)1494 452713  Email [email protected]  Web http://www.buildcheck.co.uk

    Glass Technology Services Ltd

    Testing Laboratories / 1994

    9 Churchill Way, Chapeltown, Sheffield S35 2PY, United Kingdom
    Telephone +44 (0)114 290 1801  Email [email protected]  Web http://www.glass-ts.com

    NPL Management Ltd

    Testing Laboratories / 0002

    National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, United Kingdom
    Telephone +44 (0)20 8943 7070  Email [email protected]  Web http://www.npl.co.uk