uPVC Windows
uPVC Combination Window
Sliding, casement and fixed panels welded into one structural frame for large openings.
When an opening is too wide for a single window type, a combination unit joins two or more systems inside one welded frame — a fixed picture panel flanked by casements, or a slider with a fixed top light.
Because the frame is a single structure rather than several windows butted together, there are no joints to leak and the sight lines stay clean.
Key highlights
- Any mix of fixed, slider and casement
- Single welded structural frame
- No leaking joints between units
- Made to the exact opening size
- Creates a design feature in the elevation
Technical specification
| Configuration | Custom — designed per opening |
|---|---|
| Profile | Multi-chambered, lead-free uPVC with galvanised steel reinforcement |
| Glazing | 5mm single, 5+12+5 double or acoustic laminated |
| Hardware | Imported multi-point locking, stainless steel fasteners |
| Gasket | Co-extruded EPDM on frame and sash |
| Finish | White, RAL solid colours and woodgrain laminates |
| Warranty | 10 years on profile, 5 years on hardware |
Frequently asked questions
uPVC insulates far better and costs less for ordinary residential openings. Thermally broken aluminium is stronger, so it carries larger panels with slimmer frames. We usually specify uPVC for bedrooms, kitchens and bathrooms, and aluminium for very large sliders, stairwell glazing and anything above about 2.4 metres tall.
Not if the profile is UV stabilised and lead-free, which ours are. Yellowing happens with cheap unstabilised profile or recycled material. We supply a written warranty against discolouration.
An acoustic laminated inner pane inside a double-glazed unit, with the two panes at different thicknesses and a wide cavity. Just as important, choose a casement or tilt-and-turn window rather than a slider, because the sash needs to compress onto its gaskets to seal.
Yes. We bend profile on a heated forming table from a site template, so semi-circular, segmental and elliptical heads are all possible, fixed or with an operable lower sash.
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