Aluminium Windows
Customers often ask us about windows alongside their door project, so we carry four ranges that pair well with the doors we install. The right one usually comes down to the property. Heritage builds need the proportions of traditional fenestration. Contemporary builds often benefit from slim frames and large panels of glass.
Contemporary Aluminium Windows
For new builds, extensions, and modern replacement projects, our two Cortizo ranges offer slim aluminium frames and strong thermal performance. The casement opens outward in the traditional way. The tilt and turn opens inward in two modes and reads as a fixed pane from the street.
Cortizo Casement Windows
Outward-opening aluminium casements with 70mm sightlines and a U-value down to 0.9 W/m²K. PAS 24 certified as standard, with acoustic insulation up to 45 dB. Available in side-hung and top-hung configurations, with fixed panes, bay assemblies, and shaped units possible. Sizes go up to 1800mm by 1800mm on heavy-duty sashes.
Cortizo Tilt and Turn Windows (COR 70 HO)
Two-mode aluminium windows that tilt for ventilation or swing fully open for cleaning. Concealed hardware keeps the exterior view clean, and inward opening makes them well suited to upper floors where outside access is awkward. PAS 24 approved, with acoustic insulation up to 46 dB.
Heritage and Conservation Windows
Both ranges below match the visual proportions of traditional steel or timber windows, making them suitable for conservation areas and listed buildings where planning requirements are strict. The difference comes down to opening style.
Smart VS600 Vertical Sliding Windows
An aluminium take on the traditional sash window, designed for Victorian and Georgian properties, conservation areas, and listed buildings. The flush design keeps the window from protruding when open, and the tilt-in mechanism makes cleaning upper floors straightforward without ladders. You get the period look with none of the rot, warping, or repainting that comes with timber.
Smart Alitherm Heritage Windows
A direct replacement for traditional steel fenestration, with 59mm sightlines that match the originals. Period handle options include Monkey Tail, Bulb-End, and Art Deco. Suits Victorian terraces, Art Deco apartments, and any property where the original windows were steel-framed.
Available as fixed panes, top-hung, side-hung, or tilt-and-turn.
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