Wondering about aluminium windows cost in South Africa? This guide breaks down what drives the price so you know what to budget before you order.
“How much does an aluminium window cost?” is one of the first questions most people ask — and one of the hardest to answer with a single number. Prices genuinely vary based on size, glass specification, colour, hardware and whether you need a standard or custom size. Rather than quote figures that will be outdated within months, this guide explains exactly what drives the price of an aluminium window in South Africa, so you can understand your own quote and compare it fairly.
We’ve deliberately left specific rand figures out of this article. Prices change over time with input costs, and a number published today could be misleading a year from now. What won’t change is which factors actually drive the price up or down — understanding those will help you evaluate any quote, from us or anyone else, long after specific prices have moved.
- Size
- Glass specification
- Custom manufacturing
- Aluminium profile
- Hardware
- Delivery
- Why Choose Coetz™
- Related products
- Related articles
- Frequently asked questions
Size
This is the single biggest factor in any window quote. More aluminium profile and more glass area both cost more to manufacture, so a larger window will always cost more than a smaller one in the same style and specification. This is also why standard sizes tend to offer better value than custom sizes of a similar area — they use established, pre-verified dimensions that don’t require additional design or engineering time.
Price doesn’t scale in a perfectly straight line with size, either. A window twice the width of another isn’t necessarily exactly twice the price — larger openings sometimes need heavier-duty hardware or reinforced profiles to perform correctly, which can add cost beyond the simple area calculation. This is another reason a real quote against your specific dimensions is more useful than a rough per-square-metre estimate.
Glass specification
Glass type has a real impact on price. Clear float glass is the most economical option. Toughened safety glass costs more due to the heat-treatment process. Laminated safety glass costs more again, since it’s built from multiple bonded layers rather than a single pane. Obscure/frosted and tinted glass typically carry a smaller premium over clear glass. If your project has a specific safety, security, privacy or noise requirement, factor the glass specification into your budget from the start rather than treating it as an afterthought — see our guide on toughened vs laminated safety glass for more detail on which applications need which type.
Glass thickness is a related factor worth asking about directly — a thicker pane of the same glass type generally costs more but can offer better strength, sound insulation or thermal performance depending on the application. Don’t assume every quote is specifying the same thickness just because it lists the same glass type.
Custom manufacturing
Custom sizes generally cost more than standard sizes of a similar area, since they require individual measurement confirmation and manufacturing outside the established standard-size specifications. This isn’t a markup for its own sake — it reflects the genuine extra time involved in producing a one-off size correctly. If your opening is close to a standard size, it’s always worth checking whether a standard option will work before committing to a custom quote.
See our guide to measuring aluminium windows before requesting a custom quote — accurate measurements the first time avoid the cost and delay of a corrected order.
Aluminium profile
Not all aluminium window systems are built the same. Profile design, wall thickness, and the manufacturing quality of the extrusion all affect both cost and long-term performance. A well-engineered profile costs more to produce than a lighter-weight budget alternative, but typically pays that back in structural performance and lifespan — this is one area where the cheapest quote isn’t automatically the best value.
When comparing quotes from different suppliers, ask specifically about the aluminium system being used, not just the final price. Two windows that look identical in a photo can use very different grades of aluminium underneath, and that difference tends to show up in performance and lifespan long after the sale, not in the showroom.
Hardware
Handles, hinges, locks and sliding mechanisms all vary in quality and cost. Better hardware generally means smoother, longer-lasting operation and better security, so it’s worth understanding what’s included in a given price rather than assuming all hardware is equivalent. If security is a priority for a specific opening, ask specifically about the locking hardware rather than assuming a higher price automatically means better security hardware.
Hardware is also one of the more common places cost gets quietly cut in budget-tier products — the frame and glass might look comparable, while the hinges and locking mechanism underneath are significantly lower quality. It’s a worthwhile question to ask directly rather than assume from the headline price alone.
Delivery
Collection versus delivery, and distance from the supplier, both affect the final landed cost of your order. Coetz™ offers free collection from our Laser Park, Roodepoort premises, or delivery at an additional cost depending on location — see the Delivery page for current options. If you’re ordering multiple windows for one project, it’s worth checking whether combining them into a single delivery reduces the overall cost compared to ordering separately.
Collection is often the more economical route if you’re already near the supplier or can arrange your own transport, particularly for smaller orders where a delivery fee makes up a larger proportion of the total cost. For larger or multi-window orders, arranged delivery is usually worth the convenience.
Because all of these factors interact — size, glass, custom vs standard, profile and hardware — the only way to get an accurate number for your specific project is a real quote against your actual measurements and requirements, not a generic industry average. Browse the live range to see real, current pricing for standard sizes, or contact us for a custom quote.
When comparing quotes between suppliers, make sure you’re comparing like for like on every one of these factors — the same size, the same glass specification, standard vs custom, and comparable hardware and aluminium system quality. Two quotes that look very different at first glance are often quietly specifying different products, not just different prices for the same thing.
Why Choose Coetz™
Coetz Glazing supplies aluminium windows and doors directly to homeowners, builders, contractors and property developers — supply-only, made to order, with no installation middleman marking up the price. Every price on the live catalogue is the real, current price for that product, not an estimate.
- Made to order — every unit is manufactured specifically for your order, standard size or custom.
- Collection or delivery — collect from our Laser Park, Roodepoort premises, or arrange delivery. See the Delivery page for current options.
- Trade and bulk orders — builders, contractors and developers can apply for a trade account for project pricing.
New to aluminium windows? Start with our Ultimate Guide to Aluminium Windows in South Africa. Ready for a quote? Chat with a Coetz™ specialist on WhatsApp.
Related products
See real, current prices on the live catalogue:
Related articles
- Ultimate Guide to Aluminium Windows in South Africa (2026)
- Aluminium vs uPVC Windows: Which Is Better?
- How to Measure Aluminium Windows Before Ordering
- Toughened vs Laminated Safety Glass Explained
Frequently asked questions
What is the biggest factor in aluminium window pricing?
Size is generally the single biggest factor — more aluminium profile and more glass area both increase manufacturing cost. Glass specification, custom vs standard sizing, profile quality and hardware also all play a role.
Are custom-size aluminium windows more expensive than standard sizes?
Usually yes, for a similar glass area, since custom sizes require individual measurement confirmation and manufacturing outside standard specifications. Check whether a standard size will work for your opening before committing to a custom quote.
Why doesn’t Coetz™ publish a general price list?
Because pricing depends on size, glass specification, standard vs custom manufacturing, and other factors that vary by project. Real, current prices for standard sizes are listed on the live catalogue, and custom quotes are provided per project.
Does glass type significantly affect the price of a window?
Yes. Clear float glass is the most economical option; toughened and laminated safety glass both cost more, with laminated typically the highest of the three due to its multi-layer construction.
Can I get a trade or bulk price for multiple windows?
Builders, contractors and property developers can apply for a Coetz™ trade account for project-level pricing on bulk orders.
See real prices now. Browse Coetz™ aluminium windows, or request a custom quote.
About Coetz™
Coetz™ manufactures premium aluminium windows and doors for homeowners, builders, architects and contractors across South Africa. Our products are manufactured to order and supplied directly to customers nationwide using genuine aluminium profiles and safety glass.
What affects aluminium windows cost
Several factors drive aluminium windows cost in South Africa: the size of the opening, the glass specification, the finish and the hardware. Larger windows and toughened or laminated safety glass raise the aluminium windows cost, while standard sizes in a powder-coated finish keep it modest. Because aluminium windows cost is always quoted per project, the only exact figure is a made-to-measure quote from a supplier who prices your actual openings.
Aluminium is a globally traded metal, so local aluminium windows cost moves with the international aluminium price – one reason a quote is valid for a limited time. For an exact figure on your project, a made-to-measure quote is always the most accurate guide to aluminium windows cost.
Looking for aluminium windows cost? Coetz Glazing has you covered.
Coetz Glazing supplies aluminium windows cost across the area.
Ask our team about aluminium windows cost pricing and options.
We handle aluminium windows cost from first quote to delivery.
Looking for aluminium windows cost? Coetz Glazing has you covered.
Coetz Glazing supplies aluminium windows cost across the area.
Ask our team about aluminium windows cost pricing and options.
We handle aluminium windows cost from first quote to delivery.
Aluminium windows cost: quick answers
How much do aluminium windows cost in South Africa?
Aluminium windows cost varies with size, glass and finish – a standard window is the entry point, while large or specialised units cost more. The aluminium windows cost on your project is best confirmed with a quote.
What is the average aluminium windows cost?
There is no single average, because aluminium windows cost is quoted per opening. A made-to-measure quote is the only accurate guide to aluminium windows cost.
Why does aluminium windows cost change over time?
Aluminium windows cost tracks the global aluminium price and the exchange rate, so quotes are valid for a limited period.
Leave a Reply