Thermal efficiency
Our flush windows are designed with multi-chambered profiles that trap pockets of air, dramatically reducing heat loss. When combined with A-rated double or triple glazing, U-values can reach as low as 1.0 W/m²K — outperforming most timber and aluminium alternatives.
Weather Performance
Internally we’ve adopted our tried and tested high performance multifunctional weatherseal. With a continuous seal welded at the corners, air tightness is always maintained meaning no loss of comfort inside the home. Externally a new dual seal combination maximises water tightness and conceals hardware. An integral drainage slope encourages water to drain away quickly and easily.


Acoustic performance
Noise pollution can affect your quality of life. Ada Windows’ flush casement systems can be specified with acoustic glass that cuts down external noise by up to 36 dB, helping create a calmer, quieter home.
Perfect for properties near roads, rail lines, or busy urban environments.

Weather resistance
Our flush windows are designed with multi-chambered profiles that trap pockets of air, dramatically reducing heat loss. When combined with A-rated double or triple glazing, U-values can reach as low as 1.0 W/m²K — outperforming most timber and aluminium alternatives.

Security & safety
Every Ada flush casement window is internally glazed and comes with multi-point locking systems as standard. with options to meet PAS 24 security standards, child safety restrictors, fire escape hinges and safety/security glass.

Environment-friendly
Our Deceuninck flush window profiles are 100% recyclable and manufactured with sustainability in mind. As responsible fabricators and installers of UPVC and aluminium windows, we recycle all old glass, uPVC and aluminium frames and factory offcuts to reduce environmental impact.











