uPVC or aluminium: which should you actually specify?
They are not competitors so much as different answers. One insulates, one spans. The honest comparison, from a…
15+ years · 1.5M+ sq ft installed · 500+ projects · Manufactured in Lucknow
Casement Windows - Aluminium window system by Winkraft (Lucknow, India). A solution for any architectural style. Aluminium casement windows combine slim sightlines with concealed hardware and a wide range of profiles, shapes and finishes, delivering larger glazed areas than an equivalent uPVC frame. Specifications: Outer Frame Depth: 45 mm; Hinges: Concealed; Opening: Open IN & Open OUT. Finishes: Dark Oak, Golden Oak, Walnut, Mahogany, Rustic Oak, Anthracite Grey, Black Smooth, Flemish Gold, Smooth Grey, Rose Gold, Brush Gold. Profiles: ENCRAFT India - ISO 9001:2015, ISO 14001:2015, TUV Nord certified; Profile guarantee: 10 years; Glazing: 4 mm single to 36 mm triple; Wind load: 3000 Pascal (245 km/hr equivalent); Sound insulation: Up to 40 dB reduction; Thermal performance: 0.8 W/m2K (TwinSash double-glazed unit); Fire safety: uPVC is self-extinguishing.

Aluminium Windows/System 02
A solution for any architectural style
A solution for any architectural style. Aluminium casement windows combine slim sightlines with concealed hardware and a wide range of profiles, shapes and finishes, delivering larger glazed areas than an equivalent uPVC frame.
Dimensions
| Outer Frame Depth | 45 mm |
|---|
Construction
| Hinges | Concealed |
|---|---|
| Opening | Open IN & Open OUT |
Range performance
| Glazing | 4 mm single to 36 mm triple |
|---|---|
| Wind load | 3000 Pa (245 km/hr) |
| Sound reduction | Up to 40 dB |
| Thermal | 0.8 W/m²K (TwinSash DGU) |
| Profiles | ENCRAFT India · ISO 9001:2015 |
| Guarantee | 10 years on profile |
Finishes
Matching system
The same operating mechanism in the door range — commonly specified together so an elevation reads as one system.
A solution for any architectural style.
Casement Windows are built on 45 mm profile depths. Profile depth determines the glazing thickness the system can carry and its thermal performance.
Casement Windows are available in 11 production shades: Dark Oak, Golden Oak, Walnut, Mahogany, Rustic Oak, Anthracite Grey, Black Smooth, Flemish Gold, Smooth Grey, Rose Gold, Brush Gold. Woodgrain, solid and metallic options are all offered.
Glazing runs from 4 mm single to 36 mm triple, in heat, sound and safety configurations. Winkraft systems achieve up to 40 dB sound reduction and a 3000 Pascal wind load rating (equivalent to 245 km/hr).
Casement Windows are manufactured by Winkraft (Ram Mohan Polypack Pvt. Ltd.) in Lucknow, established 2011. Winkraft manufactures rather than trades, and installs with its own site teams. Profiles are ENCRAFT India, ISO 9001:2015 and ISO 14001:2015 certified, with a 10-year profile guarantee.
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