Aluminium vs uPVC Windows
Which Frame Suits a Malaysian Home (2026)

The two frame materials in brief

Aluminium windows are made from extruded aluminium sections, usually powder-coated, with the glass held in by rubber gaskets. They are what most Malaysian terraces and condos already have. uPVC windows are made from hollow, multi-chamber plastic profiles, usually white or with a foil finish, and often reinforced with steel inside for stiffness. They are common in Europe and increasingly offered here for premium homes and high-rise units where noise matters.

ClickBina's doors and windows guide sums up the trade-off: aluminium does not rust, is strong and low-maintenance, comes in a wide colour range and has slim sightlines, but conducts heat, though thermally broken versions exist; uPVC has excellent thermal and acoustic insulation and does not corrode or warp, but costs more, comes in limited colours and is less common locally.

Side-by-side comparison

Heat: does uPVC make a room cooler?

In a hot room, most of the heat comes through the glass, not the frame. A west-facing bedroom with plain single glass will stay hot whether the frame is aluminium or uPVC. The frame matters more once the glass has been upgraded: with laminated or double glazing, an aluminium frame that is not thermally broken becomes the weak line around the pane, and a uPVC frame helps.

• If heat is the main complaint, look at the glass first: tinted, laminated or double glazing, or a good window film.
• Add shading outside where possible: an awning, a canopy or a deeper overhang stops sun before it reaches the glass.
• Only then weigh the frame; uPVC or thermally broken aluminium adds a smaller further gain.

Noise: where uPVC earns its price

Noise is where the difference is clearest. ClickBina's soundproof windows guide explains that sound leaks through gaps first, so a casement that closes onto compressed seals beats a sliding window almost regardless of material. The doors and windows guide lists a uPVC frame over aluminium as an acoustic upgrade — a better seal, with a hollow-chamber frame that absorbs vibration — at a cost premium of about +50–100% over aluminium.

For a bedroom facing a highway or a busy road, a well-sealed uPVC casement with laminated glass is one of the strongest upgrades available. For a quiet street, a good aluminium casement with fresh seals may be all you need.

Rain, sun and the Malaysian climate

Heavy rain tests the seals and drainage, not the frame material. Both types need proper drainage slots, sloped sills and a sealed joint between frame and wall. Sun is a different matter: uPVC must be a profile stabilised for strong UV, or white frames can yellow and become brittle over time. Ask the supplier which profile system is used and where it has been installed in Malaysia. Aluminium's powder coating can chalk and fade in strong sun and pit near the sea, which is why the coating quality matters; our aluminium powder coating guide explains what to check.

Casement, sliding and fixed windows

The opening type often matters as much as the material. Sliding windows are compact and cheap, but their brush seals leak air, sound and wind-driven rain more than a casement. Casements close onto compressed gaskets and seal better, but need room to open and strong hinges and stays. Fixed panes seal best of all. Both aluminium and uPVC come in all three types; uPVC suppliers mostly push casement and tilt-and-turn styles, which is part of why uPVC windows test well for noise.

What they cost

These figures are quoted from ClickBina's doors and windows guide (indicative 2026, Klang Valley). Sizes, glass, hardware and access change the final price.

When comparing quotes, check that each names the frame system, the glass type and thickness, the hardware, whether old frames are removed and how the gap to the wall is sealed and finished.

Repair, parts and replacing a few windows

Aluminium windows are easy to repair in Malaysia: rollers, stays, handles, locks and rubber seals are stocked widely, and any fabricator can make a matching panel. Our window repair guide covers the common fixes. uPVC hardware is often specific to the profile system, so check that the supplier holds spares and will still be around. If you only replace a few windows, think about how they will look next to the rest; white uPVC beside bronze or black aluminium can look odd on a facade.

In condos, the management usually controls the facade. Check the house rules on window colour, material and opening type before ordering, and get approval in writing.

Which one should you choose?

• Choose aluminium for most rooms, large sliding doors, wide panes, specific colours and when budget matters.
• Choose uPVC casements for bedrooms facing heavy traffic, and for units where noise and draughts are the main complaints.
• Consider thermally broken aluminium if you want slim frames and a colour choice with better insulation.
• Whatever the frame, spend on the glass and the seals: they decide most of the heat and noise performance.

How ClickBina can help

Window replacement is measured and quoted per opening. WhatsApp us your job details for a quote: the number of windows, their approximate sizes, the rooms and whether noise, heat or leaks are the main problem. ClickBina is an experienced KL & Selangor contractor for whole-house refurbishment and trade coordination. We reply within the hour, the price we agree is a flat price with no hidden charges, and a site visit is RM150, waived if you go ahead.

Sources & methodology

• ClickBina doors and windows guide — frame material pros and cons, window prices, uPVC acoustic premium.
• ClickBina soundproof windows guide — seals, casements and noise.
• ClickBina aluminium powder coating guide — coating quality on aluminium frames.

How we estimated prices: every RM figure and the percentage premium on this page are quoted unchanged from ClickBina's doors and windows guide; they are indicative Klang Valley ranges for 2026.