Comparing the cost of aluminium and uPVC windows? Here's what honestly separates them.
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.
One honest point that gets missed: an aluminium frame needs a thermal break to insulate like uPVC does naturally, and that adds cost. Comparing plain aluminium to uPVC isn't like-for-like on performance.
It depends on spec — but note that aluminium needs a thermal break to insulate the way uPVC does naturally, and that adds cost. Comparing plain aluminium to uPVC isn't like-for-like.
An insulating barrier inside an aluminium frame that slows heat conduction. uPVC doesn't need one — its chambers do that job.
Compare like-for-like on performance — thermal-broken aluminium against uPVC, with the same glazing.
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.