For aluminium windows Johannesburg-wide, Coetz™ makes every window at our Laser Park workshop and publishes every price online. You can order online, collect free from Laser Park, or have the windows delivered anywhere in Johannesburg. There is no quote to wait for and no showroom to visit. Every window is made to order in 1–2 days, glazed with 6.38 mm clear laminated safety glass and finished in one of five colours. This page sets out what aluminium windows cost in Johannesburg, which window suits which room, and how collection and delivery work across the city.
Coetz™ supplies only. Your builder or a window installer fits the windows (see aluminium window installers). Because you don’t pay for a site visit or an installation team, the price you see is the price of the window.
In this guide
Aluminium windows Johannesburg prices
These aluminium windows Johannesburg prices are real shop prices for popular sizes. Sizes are width × height. Prices are excluding VAT, in White, as at 19 October 2026:
| Size | Fixed | Top hung (single opener) | Side hung (single opener) | Sliding (2 panel) |
|---|---|---|---|---|
| 600 × 600 mm | R822 | R1 481 | – | – |
| 600 × 900 mm | R1 054 | R2 029 | R1 946 | – |
| 1 200 × 900 mm | R1 572 | R2 796 | R2 797 | R4 318 |
| 1 200 × 1 200 mm | R1 858 | R3 475 | R3 468 | R4 952 |
| 1 500 × 1 200 mm | – | R3 476 | – | R5 527 |
| 1 800 × 1 200 mm | R2 605 | R3 849 | R4 060 | R6 108 |
Bronze and Charcoal cost the same as White. Black costs about 10% more and Natural Anodised about 20% more. The shop always shows the current price. To price every window in a house at once, use the online estimator. To search by the size of your opening, use shop by size.
Aluminium windows Johannesburg: which window for which room
Most Johannesburg homes use a mix of window types:
- Top hung windows are hinged at the top and open outwards from the bottom. They keep a summer storm out while they are open, so they are the most popular aluminium windows in Johannesburg for bedrooms, kitchens and bathrooms. See top hung aluminium windows.
- Side hung windows open like a door and let in the most air for their size. See side hung aluminium windows.
- Sliding windows do not project outside, so they suit walkways, patios and narrow side passages. See aluminium sliding windows.
- Fixed windows are the cheapest way to add light, for example beside a door, above a stairwell or in a gable.
For room-by-room advice, read aluminium kitchen windows and aluminium bathroom windows.
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Coetz™ Top Hung – 1200 × 1200 mm – 4-Pane (600 mm Vent)
Price range: R5 709,00 through R6 851,00 (excl. VAT) Select options This product has multiple variants. The options may be chosen on the product page -
Coetz™ Top Hung – 1200 × 1200 mm – Contemporary Single Opener
Price range: R3 842,00 through R4 649,00 (excl. VAT) Select options This product has multiple variants. The options may be chosen on the product page -
Coetz™ Top Hung – 1200 × 1200 mm – Single Opener
Price range: R3 475,00 through R4 585,00 (excl. VAT) Select options This product has multiple variants. The options may be chosen on the product page -
Coetz™ Top Hung – 1200 × 1200 mm – Single Opener (900 mm Vent)
Price range: R3 487,00 through R4 184,00 (excl. VAT) Select options This product has multiple variants. The options may be chosen on the product page -
Coetz™ Top Hung – 1200 × 1200 mm – Twin Opener
Price range: R3 948,00 through R4 794,00 (excl. VAT) Select options This product has multiple variants. The options may be chosen on the product page -
Coetz™ Top Hung – 1200 × 1200 mm – Twin Opener (600 mm Vent)
Price range: R4 291,00 through R5 149,00 (excl. VAT) Select options This product has multiple variants. The options may be chosen on the product page -
Coetz™ Top Hung – 1200 × 1200 mm – Victorian Twin Opener
Price range: R3 987,00 through R4 784,00 (excl. VAT) Select options This product has multiple variants. The options may be chosen on the product page -
Coetz™ Top Hung – 1200 × 1500 mm – 4-Pane (600 mm Vent)
Price range: R6 636,00 through R7 963,00 (excl. VAT) Select options This product has multiple variants. The options may be chosen on the product page
Aluminium windows Johannesburg: built for the Highveld climate
Johannesburg sits on the Highveld at about 1 750 m above sea level, and the weather here is hard on windows in three ways:
Summer thunderstorms and hail
From about October to March, afternoon storms bring heavy, wind-driven rain and sometimes hail. Aluminium windows in Johannesburg have to drain water out of the frame quickly. Every Coetz™ frame has drainage slots at the bottom. Keep them clear, because a blocked slot is the most common cause of a leak (see aluminium windows leaking). Laminated glass also helps in a hailstorm: if a pane cracks, the interlayer holds the pieces together instead of letting them fall into the room.
Strong sun at altitude
UV is strong at this altitude, and it fades and chalks cheap finishes. Our frames are powder-coated or anodised, and the finish is covered for 5 years (see our warranty). If your windows face north or west, note that darker colours run warmer in full sun. That doesn’t damage the frame, but it is worth knowing when you choose between White, Bronze, Charcoal and Black.
Dry, dusty winters
From May to August there is very little rain, and wind carries dust into tracks and seals. Vacuum sliding tracks and wash seals before the first spring storm. The routine is in how to clean aluminium windows.
Replacing steel and wooden windows in Johannesburg homes
Many older Johannesburg suburbs, such as Melville, Parkhurst, Greenside, Linden, Kensington, Observatory and Emmarentia, were built with steel or timber windows. Decades later, those frames have often rusted, warped or been painted shut. Replacing them with aluminium windows is one of the most common jobs we supply for.
- Measure the opening, not the old frame. Take the brick-to-brick size once the old frame is out, then order the standard size that fits. Our units are made 10 mm smaller than the catalogue size so they fit with room for packers and sealant. See how to measure aluminium windows.
- Keep the look of the house. Our Victorian-style top hung windows have the divided panes that suit older Joburg houses. White and Charcoal are the usual choices on heritage-style homes.
- Check heritage rules. Buildings older than 60 years can be protected under heritage law, so check with your architect before you change the facade.
The full process is in replace steel windows with aluminium.
Aluminium windows Johannesburg: townhouses, complexes and estates
A large share of Johannesburg homes are in sectional-title complexes and estates. Most complexes check three things before they approve aluminium windows Johannesburg owners want to fit:
- Get approval first. Exterior changes usually need the trustees’ or the HOA’s approval, and many complexes set the colour and window style.
- Match what is already there. Most complexes use White, Bronze or Charcoal, and we make all three at the same price.
- Plan the delivery. Estate security often needs the driver’s name and vehicle details in advance. Arrange access, or collect the windows yourself.
Aluminium windows Johannesburg: collection and delivery
Our workshop is at Unit 2, 84 Ridge Road, Laser Park, on the north-western side of Johannesburg, and we supply aluminium windows Johannesburg-wide. You have two options:
- Collect free. Collection is by arrangement once we tell you your order is ready, usually 1–2 days after you order. Many builders and installers collect on their way to site.
- Delivery in the Johannesburg zone costs R650 for standard-size items and R950 for oversized items (over 2 400 mm), charged once per order and delivered in 1–3 working days from dispatch. The zone covers postcodes 2000–2001, 2017–2018, 2040, 2055, 2090–2095, 2107–2109, 2113, 2128, 2157, 2192–2196, 1684–1685, 1709, 1724–1725, 1735 and 1739. The rest of Gauteng is R950 (R1 350 oversized). Checkout works out the rate from your postcode, and full details are on our delivery page.
Areas we supply around Johannesburg
We supply aluminium windows across Johannesburg and its suburbs. Each of these areas has its own page:
- Aluminium windows Roodepoort, our closest neighbour
- Aluminium windows Randburg
- Aluminium windows Sandton
- Aluminium windows Fourways
- Aluminium windows Midrand
- Aluminium windows West Rand and East Rand
For doors, see aluminium doors Johannesburg. For the whole province, see aluminium windows Gauteng.
What every Coetz™ window includes
- Glass: 6.38 mm clear laminated safety glass in every pane, as standard. This meets the safety-glazing rules in SANS 10400-N, published by the South African Bureau of Standards.
- Colours: White, Bronze and Charcoal at the same price; Black at about 10% more; Natural Anodised at about 20% more. See aluminium window colours.
- Drawing: every product drawing shows the window as viewed from inside, so you can check which panes open.
- Warranty: 5 years on frames, glass and powder coating, and 2 years on hardware and seals, against manufacturing defects.
- Lead time: made to order in 1–2 days.
Visit or contact us
Unit 2, 84 Ridge Road, Laser Park, Johannesburg. We are open Monday to Thursday 07:30–16:30 and Friday 07:30–15:00. Call 010 412 0062, WhatsApp 076 613 4418 or use our contact page.
Aluminium windows Johannesburg: frequently asked questions
How much do aluminium windows cost in Johannesburg?
At Coetz™, a 600 × 600 mm fixed window costs R822, a 1 200 × 900 mm top hung window R2 796 and a 1 200 × 1 200 mm two-panel sliding window R4 952, excluding VAT, in White. All prices are on our website.
Is there an aluminium windows factory shop in Johannesburg?
Yes. Coetz™ makes aluminium windows at Laser Park, Johannesburg, and you can collect your order there for free. Order and pay online first; we tell you when it is ready.
Do you install aluminium windows in Johannesburg?
No. Coetz™ supplies aluminium windows only. Your builder or a window installer fits them.
How long do aluminium windows take in Johannesburg?
Standard windows are made to order in 1–2 days. Collection is ready as soon as they are made. Delivery in the Johannesburg zone takes 1–3 working days from dispatch.
What glass do your aluminium windows have?
Every window has 6.38 mm clear laminated safety glass as standard. We do not supply tinted, frosted or double-glazed aluminium windows.
Which aluminium window is best for Johannesburg storms?
A top hung window is the most popular choice because the open sash keeps most rain out. Whatever the type, keep the drainage slots clear and the seals clean before the storm season.
