Aluminium Facade vs UPVC Windows: Which is Better for Your Building?

The Honest Answer Most Contractors Won't Give You

UPVC salespeople will tell you UPVC is better for insulation. Aluminium contractors will say aluminium lasts longer and looks better. Both are partially right. The real answer: it depends on your building type, height, and what you're optimising for. Here's the unbiased breakdown based on what we've seen in the field.

Head-to-Head Comparison

A side-by-side look across every parameter that actually matters:

Where UPVC Genuinely Wins

UPVC's thermal performance advantage is real — standard aluminium without thermal break conducts heat significantly faster than UPVC. For a ground-floor apartment in a mild climate without heavy AC usage, UPVC makes sense and the cost savings are substantial (30-40%). UPVC also provides better acoustic insulation for standard residential windows.

Where Aluminium Is Non-Negotiable

You should not use UPVC when:

• 1.Building exceeds 5 floors — wind loads exceed UPVC's capability without expensive steel reinforcement.
• 2.Large glass panels are needed — any opening above 1.5m width needs aluminium's structural capacity.
• 3.Curtain wall or structural glazing is required — UPVC has no role in these systems.
• 4.Custom colour or finish required — aluminium can be any RAL colour.
• 5.Coastal projects — marine-grade aluminium significantly outperforms UPVC in salt air.

The Practical Decision Framework

For residential apartments and villas with standard window sizes under 1.5m width, UPVC offers good value on a budget. For commercial buildings, IT parks, offices, hotels, and any project requiring curtain walls, large openings, or custom aesthetics — aluminium is the only serious option. Contact Fine Glaze for a specific recommendation for your building type and budget.