Black uPVC windows have become genuinely fashionable in the last few years, particularly for modern Indian homes going for a clean contemporary look. The frame is structurally the same multi-chamber uPVC underneath — the black colour comes from a high-grade foil laminate applied to the profile during manufacture. Done with proper material, the black finish is UV-stable and doesn't fade or chalk for 15+ years. Done with cheap thermal paint, it starts greying within 18 months. Glassterr manufactures black uPVC windows at our Pannimadai factory using foiled profiles — the finish is genuinely lasting, not painted on after. Available in pure black, anthracite (dark grey), and woodgrain darks like dark oak.
A 'black uPVC window' is a standard multi-chamber uPVC profile that has been laminated during manufacture with a black foil — usually an acrylic-based foil that's heat-bonded to the white uPVC core. The result is a black surface that's part of the profile, not a paint coating. Quality foils (like Renolit, Hornschuch) are UV-rated for 15-25 years of outdoor exposure without significant fading. The downside is that black surfaces absorb more heat than white in direct sun, which can cause slight thermal expansion of the profile — premium black-finished profiles include thicker steel reinforcement to compensate. We use foiled profile, not painted, because painted black finishes don't last in tropical conditions.
Quality foiled black profile holds its colour for 15-25 years with no significant fading. Cheap painted-on black starts greying within 18 months. We use proper UV-rated foils, which is why we charge slightly more than the cheapest 'black uPVC' available in the market — the cheap stuff doesn't last.
Yes — black absorbs more solar radiation. In direct sun, a black frame can run 10-15°C hotter than a white frame. This is why premium black profiles use upgraded steel reinforcement to handle the thermal expansion. The colour change does affect frame longevity slightly, but quality profiles are engineered for it.
Yes — a 'dual-colour' or 'two-sided' configuration is available, where the foil is only applied to the exterior face and the interior remains white. Slightly more expensive than fully-black, but matches some interior schemes better.
Typically 15-25% premium over equivalent white uPVC windows. The foil itself costs, and the upgraded reinforcement adds slightly. For a 4ft × 4ft sliding window, expect ₹3,000-5,000 extra over the white equivalent.
Anthracite (dark grey, very popular for modern looks), brown, beige, woodgrain finishes (oak, walnut, mahogany, dark oak), green, and various greys. All use the same foil-laminated approach. We'll show samples at measurement.
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