Aluminium sliding windows open horizontally along a track, making them a practical, space-saving choice where an outward-opening sash is not ideal. Coetz™ supplies aluminium sliding windows direct across South Africa: factory-direct, supply-only, glazed with 6.38mm laminated safety glass in standard and custom sizes.

Why choose aluminium sliding windows?
- Space-saving — the sash slides rather than opening outward.
- Great for walkways & patios — nothing protrudes outside.
- Easy to operate — smooth horizontal slide.
- Secure & low maintenance — durable aluminium frames.
Other aluminium window types
Prefer an opening sash? See top hung and side hung (casement) windows, or browse all aluminium windows.
Glass & sizes
Standard glazing is 6.38mm clear laminated safety glass, in charcoal, bronze or white. Choose standard sizes for fast supply or custom made-to-measure.

Why choose aluminium sliding windows
Aluminium sliding windows open sideways along a track rather than swinging outward, so they take up no space inside or out — ideal for walkways, patios, over sinks and anywhere a projecting sash would be in the way. The slim aluminium frames maximise glass area for light and views, and the horizontal action is easy to operate for all ages. Because there are no outward-opening sashes, aluminium sliding windows also suit windy sites and upper floors where a top-hung window could catch the breeze.
Colours, glass and sizes
We supply aluminium sliding windows powder-coated in charcoal, bronze and white to match your home or project. Standard glazing is 6.38mm clear laminated safety glass, with tinted and other options available. Choose standard sizes for fast supply or order custom, made-to-measure aluminium sliding windows for a perfect fit. Compare other styles such as top-hung and side-hung windows, or browse all aluminium windows.
Durability and maintenance
Aluminium is strong, slim and rust-free, so the frames resist warping and never need painting — an occasional clean of the track and glass keeps them working smoothly and looking new. Quality rollers and hardware give a light, reliable slide for years, and the powder-coated finish stands up to South African sun and coastal air. It is a low-maintenance choice that keeps its looks with almost no effort.

Delivery across South Africa
Coetz™ supplies aluminium sliding windows direct nationwide — factory-direct pricing, supply-only. Standard sizes ship quickly; custom sizes are manufactured to order with clear lead times. We provide fitting guidance so your builder can set the frame square and true for smooth operation.
A cost-effective, long-term investment
Quality aluminium windows are a once-off investment that pays back over decades. Because the frames do not rot, rust or need repainting, running costs are minimal, and the durable powder-coated finish keeps its colour in harsh sun. Larger glass areas mean brighter rooms and lower daytime lighting costs, while good seals help manage heat and draughts year-round. Aluminium is also fully recyclable, so it is a responsible choice as well as a practical one. For homeowners, developers and commercial projects alike, it is a specification that looks good on day one and still performs years later.
How to measure and order
Ordering is straightforward: measure the structural opening width and height, choose your colour and glass, and select a standard size or request a custom size made to your measurements. If you are unsure, our team can guide you through sizing and configuration so the finished window fits and operates exactly as intended. Standard sizes ship fast; custom orders are manufactured to order with clear lead times confirmed up front.

Frequently asked questions
Are aluminium sliding windows good for security?
Yes. Durable aluminium frames with locking and laminated safety glass provide good security.

Do sliding windows save space?
Yes. Because the sash slides horizontally rather than opening outward, nothing protrudes outside — ideal near walkways and patios.
Do you supply sliding windows in custom sizes?
Yes. We supply standard sizes for fast delivery and custom, made-to-measure sliding windows.
Are aluminium sliding windows good for security?
Yes. Strong aluminium frames, quality catches and 6.38mm laminated safety glass make aluminium sliding windows a secure choice, and there are no outward sashes to force.
Do aluminium sliding windows come in custom sizes?
Yes. We supply standard sizes for fast delivery and custom, made-to-measure aluminium sliding windows in charcoal, bronze and white.
Get a quote
Contact our team on 010 412 0062 for aluminium sliding windows, supplied direct across South Africa.
Shop aluminium windows online
Specifying aluminium sliding windows: what we need to quote
Most of the cost and most of the delay on a project is settled before anything is ordered. If you are specifying aluminium sliding windows, the points below move the price, the lead time or the compliance position, so they are worth deciding early rather than on site.
- The structural opening. Measure the brickwork opening rather than an existing frame, and check the reveal is square and plumb.
- Configuration. Confirm the opening arrangement, which panes open, and which way they open before anything is manufactured.
- Colour. Five finishes are stocked — black, white, bronze, charcoal and natural anodised — and some carry a premium.
- Glass. Coetz™ glazes as standard with 6.38 mm clear laminated safety glass.
- Supply only. Aluminium windows and doors are supplied, not installed, so allow for your own installer.
Send those details with your enquiry and we can price aluminium sliding windows accurately first time. If something is still open, say so — quoting two options for aluminium sliding windows now is far cheaper than altering a manufactured unit later.