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At Procompare, we have been tracking prices and seasonal trends for many years. Based on our proprietary data of historical project costs (acquired from thousands of our Pros) and other cost data from various respectable sources, we have put together a 2026 aluminium windows cost guide, where we have gathered all the necessary information for you to make the best possible decision.
900 X 900 mm aluminium windows
This is the price for a standard 900 X 900 mm aluminium window, without installation. Aluminium is the most popular choice of windows material in South Africa. It is available in an unlimited range of colours and sizes. The price also ranges accordingly. Other factors affecting the price are the style, glazing, and special finishes, as well as the brand and your location. On average, expect to be charged between R1300 and R2500 for a 900 X 900 mm aluminium window.
Get quotes1500 X 1500 mm aluminium windows
This is the price for a standard 1500 X 1500 mm aluminium window, without installation. The final price will depend on the style (bifold, sliding, awnings, casement, etc.), glazing (single, double, etc.), and finishes. The brand and your location also have an effect on the price. Installation cost in Johannesburg and Pretoria is somewhat higher than in Durban for example. The cost of a 1500 X 1500 mm aluminium window typically runs from R3100 to R4400, averaging at R3800.
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