How do uPVC and fibreglass windows compare? Here's an honest look.
Aluminium window frames are strong and slim, which lets them carry large panes with thin sightlines. But aluminium conducts heat readily, so an aluminium frame transmits more heat than uPVC unless it has a thermal break.
uPVC frames are multi-chambered — the hollow chambers trap air, which slows heat transfer. That makes uPVC naturally insulating without needing a thermal break.
Fibreglass is a genuinely good window material — strong and dimensionally stable. The honest issue in Tamil Nadu is availability and local support: uPVC has an established supply chain and fabricators here; fibreglass largely doesn't.
Both insulate well and resist rot. Fibreglass is strong and dimensionally stable, but in Tamil Nadu the practical issue is availability and local support — uPVC has an established supply chain and fabricators here.
It has genuine strengths, but availability and local servicing matter for a window you'll own for decades.
No — we fabricate uPVC, which has the established local supply chain and support.
Related guides covering this topic from other angles — different products, applications, or contexts.
Tell us your openings and we'll measure on site, advise, and give you a real quote — factory-direct from our Pannimadai works in Coimbatore.