Dual Swing

All Timber Windows Norfolk Window products are manufactured to the highest quality, and have 60 Years+ Service Life, under Low Maintenance regime up to 80 in less exposed areas. When you choose our high specification Timber Windows, you can be sure that they will provide Style and Endurance for years to come. Due to the modern manufacturing process and the Service Life, TWN’s Windows are Carbon Negative. Our products are designed to save money and CO², whilst meeting and Exceeding, the Energy Efficiency Standards in the UK Building Regulations Recommendations.

The Dual Swing Window has been developed to meet the demands of contemporary styling, having the appearance of a traditional sash window whilst conforming to current building regulations. A dual opening stepped sash window with easy clean and integral restrictor.

  •     Opening sashes do not project into room avoiding fouling of curtains or blinds
  •     Traditional box sash appearance for planning sensitive areas
  •     Hinge geometry ensuring all sash sizes are easily handled, even by those of reduced mobility
  •     Built-in child-proof restrictor automatically restricts sash
  •     Fully Reversible for easy cleaning
  •     Outstanding weather performance to BS6375parts 1 and 2


Technical Details

       U Value                        Glass                     Thickness (mm)

  •        1.4                               DG                               24
  •        1.2                               DG                               24
  • FSC & PEFC Softwood
  • Hardwood (Sapele)
  • FSC Laminated Softwood
  • Optional SBD
  • Georgian Bar / Glazing Bar
  • Plant on Glazing Bar
  • Bay Window
  • Easy Clean Function