Aluminium Window Companies in Dubai: Ranking

How the list was built

We took all 24 companies with a place in the Dubai ranking and kept those whose website has a dedicated page for aluminium windows, sliding systems or aluminium doors. The link and the date of each check are stored with the company's data. No points are added for aluminium itself: a company's place here follows its total score in the city ranking. The weights are in the methodology.

What to check with an aluminium window company

• Thermal break. In a thermally broken profile an insulating bar separates the outer and inner aluminium, so heat does not pass straight through the metal into an air-conditioned room. Its mechanical strength is tested under the European standard EN 14024. Ask whether the system on offer is thermally broken and for its frame U-value.
• Glass for the sun. Ask for the g-value (SHGC) of the glazing: the share of solar heat that passes into the room. The Abu Dhabi green building rating Estidama lists glazing SHGC among the measures that cut a building's heat gain. The lower the figure, the less heat enters.
• Slim frames and large sliding doors. Narrow sightlines and wide sliding panels depend on the system. The largest sash a system can carry is set in its maker's catalogue; ask to see that page for your sizes.
• Coating. Aluminium is powder coated or anodised. QUALICOAT is the quality label for architectural powder coatings, QUALANOD for anodised aluminium. Ask whether the coating line holds one and check the colour against a sample.
• Two warranties. Some companies state an installation warranty separately from the profile maker's warranty. Only the installation warranty counts in the score; ask for both in writing.
• Contract language. Under UAE consumer law, contracts and invoices for consumers are in Arabic, and another language may be added alongside.

More on frames: aluminium vs uPVC windows.

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