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  • Janex Scotland - Head Office
    Unit 8
    Callendar Business Park
    Falkirk FK1 1XR

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Janex windows and doors for Hanham Halls code 6 residential development build

The industry standard is to buy window and door products from a manufacturer and employ an external subcontractor to install them, making it difficult to control the quality of the installation. As a complete package provider, Janex is one of the few window companies to take a different approach. Our ‘hot box’ testing has shown how the inclusion of a third air-tight internal seal is necessary to reach Passive House air-tightness requirements, and our unique service package means we take full responsibility for installation standards as well as for the design and manufacture of our windows and doors.
Janex were chosen by London-based HTA Architects and Barratt Developments for the U.K.’s first large-scale residential development built to Code 6 - the highest standards set by the Code for Sustainable Homes. Janex installed high performance timber windows and balcony doors, as well as composite entrance doors, with wholeproduct U-values ranging from 1.4 W/m²K to 0.84 W/m²K. The products comply with Lifetime Homes and Secured by Design and form part of an air-tight construction. Hanham Hall’s mandate to meet Level 6 code is the product of an initiative called the Carbon Challenge, a programme launched by the Homes and Communities Agency to test the ability of big residential projects to measure up to Level 6 standards.