Aluminium casement windows UAE : What to Check Before Buying | ARQEN

Aluminium casement windows in the UAE are a popular choice for UAE homes because the whole sash swings clear of the frame, leaving a generous opening for fresh air. They also bring practical questions: which way the sash swings, how much room it needs, and how it copes with heat, dust and noise. This guide covers what to weigh before you order, using ARQEN’s casement range as the example.

What Is a Casement Window?

A casement window has a sash hinged along one vertical edge. It swings open like a door, and depending on the system it can open outward or inward. What defines the style is that side hinge, not the handle or the way the window is operated.

The parts that do the work are easier to understand separately:

• Hinges carry the weight of the sash and set how it swings. Larger sashes need hinges rated for the glass they carry.
• The operator moves the sash open and closed. Depending on the system this may be a crank, a lever handle or friction stays, and some hardware lets the sash hold at partial openings.
• Locking points pull the sash against the frame when it is closed. The number of points varies with the system and the size of the window.
• Gaskets seal the gap between sash and frame, and a well-fitted set is a large part of how a closed window keeps out dust and draughts.

Casements come as single sashes or as pairs that meet in the middle, often called French casements. Which arrangements are available for a given opening depends on its width and the hardware used.

The opening direction, hardware and available sash arrangements for ARQEN’s casement range are set out on the ARQEN Casement Window System page and in your quotation. Tell the team what sits inside and outside the opening so the swing can be planned properly.

Where Casement Windows Suit

• Living rooms and bedrooms where you want a wide, unobstructed ventilation opening.
• Kitchens, where an operator that is easy to reach and use matters more than the style of hinge.
• Corner and angled openings, where a swinging sash can suit the wall geometry better than a track.
• Walls with a large fixed panel, where a casement alongside adds the airflow the fixed glass cannot.

Casement windows need room to swing, so they work best where nothing outside, such as a balcony rail or shading device, or inside, such as furniture and curtains, gets in the way.

Casement or Something Else?

The right window type depends on the room. These are the trade-offs that usually decide it.

Window type	How it opens	What to plan for
Casement	Side-hinged sash swings open, in or out depending on the system	Swing clearance, handle reach, cleaning access to the outer glass
Tilt and turn	Tilts inward at the top, or swings fully inward	Interior space for the sash, curtains and furniture
Sliding	Panels slide along a track	How much of the opening is usable depends on the panel arrangement, for example two panels leave roughly half covered
Awning	Top-hinged, opens outward at the bottom	A smaller opening, suited to higher or narrower positions
Fixed	Does not open	Needs ventilation from elsewhere in the room

 

• Swing clearance: a casement needs free space on the side it opens into. Sliding windows need none, which helps beside balconies and walkways.
• Opening modes: a casement opens one way. Tilt and turn adds a tilted position for gentler ventilation as well as a full opening.
• Cleaning access: an inward-opening sash can be cleaned from inside. An outward-opening one usually needs access from outside or a suitable cleaning method, which matters on upper floors.
• Ventilation needs: a fully open casement gives a large opening, but a sliding window with more than two panels, or a different sliding arrangement, can change that comparison.

For a wider look at the options, see How to Choose Aluminium Windows in the UAE, or the guides to tilt and turn windows and awning windows.

Ventilation in UAE Conditions

A wide-open casement gives a generous ventilation opening, but the usable area depends on how far the sash opens, any restrictor fitted, and whether an insect screen sits across the opening. Opening a window also lets in outdoor heat, humidity and dust, so ventilating naturally usually makes most sense on milder days and evenings, with the window closed and the cooling system doing the work in the hottest or dustiest periods.

Glazing, Heat and Noise

Closed-window performance comes from the frame, the glass, the seals and the installation working together. In the UAE, glazing usually has the biggest effect on heat gain.

• Double glazing reduces heat transfer compared with a single pane and is a sensible starting point for external windows.
• Solar control glass carries a coating that reflects part of the sun’s heat and glare, which helps on east, south and west facing walls.
• Acoustic laminated glass reduces sound transmission through the glass. It is a difference in the glass build-up, not a coating, and it suits rooms facing busy roads.

Opening the window substantially reduces sound insulation, because sound enters through the gap. Do not expect the closed-window acoustic rating while the sash is open. For a bedroom on a noisy street, the choice between fresh air and quiet is a real one.

Before You Order

A short list of questions to settle with your supplier:

• Which way does the sash open, and is there enough clearance inside or outside for it to swing?
• Can you comfortably reach and operate the handle, especially on higher windows?
• How will the outer glass be cleaned, particularly on upper floors?
• What is the maximum sash size for the hardware, and what opening limit does it allow?
• What locking points come as standard on your unit?
• Which glazing options are available for your orientation and noise conditions?
• Can an insect screen be fitted, and which hardware finishes are offered?
• Is the location exposed, for example coastal, and is the finish suited to it?

Installation and Maintenance

A good installation starts with an accurate survey of the opening. The frame is then fixed square and level, the joint between frame and wall is sealed, the hardware is adjusted, and the opening action and locks are checked before handover. Timelines depend on the number of openings, access, and whether the work is new build or a retrofit.

For upkeep, follow the maintenance guidance supplied with your hardware, including how often to service it and what to use on it. In general, keep hinges and locks clear of dust and sand, check the gaskets for wear, and rinse windows near the coast more often to remove salt.

What Affects Cost

• Size, since larger sashes need heavier hardware.
• Hardware, including the operator and the locking points.
• Glazing, from double glazing to solar control or acoustic laminated glass.
• Finish, with standard powder coating usually more economical than custom colours.
• Quantity and access, as multiple units and easy access lower the cost per window.

Casement, awning and other types can only be compared fairly on like-for-like quotations for the same size, hardware and glazing, so ask for those from the start.

About ARQEN

Arqen Industries describes a 60-year legacy in construction and architectural excellence, and makes its casement windows as part of a wider range of aluminium windows, doors and facade systems. ARQEN’s published warranty is described as a 20-year structural warranty. Ask for the written terms to see how hardware, glazing, finishes and seals are treated, so you know exactly what is covered.

Frequently Asked Questions

What defines a casement window?

A sash hinged along one vertical edge that swings open like a door. Depending on the system, it may open outward or inward.

Does a casement window give the most airflow?

A fully open casement gives a generous opening. How much air actually moves depends on how far the sash opens, any restrictor, insect screens and the layout of the room, so it varies from window to window.

Does acoustic glazing work when the window is open?

Opening the window substantially reduces sound insulation, because sound enters through the gap. Acoustic laminated glass performs as rated when the window is closed, so do not expect the same result with the sash open.

How many locking points does a casement window have?

It varies with the system and the size of the window. Ask for the locking specification of the unit you are ordering.

Is a restricted opening secure?

A restrictor limits how far the sash opens, but it is a ventilation control. Security depends on the glass, frame, hardware, fixings and installation together.

What glazing can I choose?

Double glazing is a common starting point, with solar control glass for sun-exposed walls and acoustic laminated glass for noisy ones. Ask ARQEN which options suit your window.

How much maintenance do casement windows need?

Follow the guidance supplied with your hardware. Keeping hinges, locks and gaskets clean and checking them periodically covers most needs.

What warranty does ARQEN offer?

ARQEN’s published warranty is described as a 20-year structural warranty. Ask for the written terms to see how hardware, glazing, finishes and seals are covered.

Get a Specification and Quote

To see the full casement range, visit the ARQEN Casement Window System page. To get a specification and quote, share your opening dimensions, project location, preferred configuration and what surrounds the opening through our enquiry page.