There are many aluminium profile manufacturers, the quality gap is large, and the price difference is large. Before the fabricaton of aluminum doors and windows, the purchased aluminium profiles must undergo strict quality inspection and control in the warehouse. Aluminium Profiles can be inspected with the eye and related instruments for quality. Below are the main aspects for quality test.


The bottom line here is that modern aluminium profiles are absolutely no worse insulated than wooden or, even more so, plastic ones. On the contrary, modern aluminium window profiles are distinguished by the best thermal performance and are often used in the construction of passive houses. As a result, the price of aluminium windows and doors has risen considerably in recent years, and we currently have to pay more for them than for wooden windows!