Aluminium windows: short buying guide in 6 points

Aluminum has been known for decades as the alternative to wood for making frames of all types and shapes: a durable, sturdy alloy, resistant to atmospheric agents and oxidation, with high mechanical performance and easy maintenance. However, aluminum frames for a long time had no thermal insulation performance like wood windows: aluminum is a “cold” material, with high thermal conductivity, and traditional aluminum windows and doors have the reputation of not being the best in terms of energy saving and climate comfort, they are subject to condensation and cause of unaesthetic molds.

Today, however, technological innovation has made great strides and on the market we can find aluminum windows with extremely high performance in terms of both thermal and acoustic insulation, able to meet today’s energy saving needs as well as aesthetics.


Cold-cut aluminum windows are traditional aluminum frames, characterized by a profile made entirely of this material, which by its nature, being a metal, is a thermal bridge. This means that the aluminum window frame in winter lets the heat pass from the inside to the outside, and in the summer from the outside to the inside. Under certain conditions, when the internal temperature is very high and there is an intense cold outside, the window not only does not isolate, but also becomes the point of condensation. Result: high heat dispersion, high consumption, unhealthy and comfortable environments.

The thermal break aluminum windows introduce between the two aluminum profiles, the internal and external one, an insulating element that interrupts the thermal break and significantly increases the performance of the frame. This is usually combined with low-emission glazing which also eliminates condensation problems.


Therefore, aluminum windows, if made with a thermal break, combine the natural resistance of aluminum with the thermal insulation capabilities that a frame must have today in order to be defined as “energy saving”.

The fixtures made of aluminum are:

  • resistant and durable, their duration over time can exceed 60 years, if built with quality materials and certified techniques
  • light and aesthetically pleasing, thanks to the possibility of creating thin but still very stable and robust profiles, ideal for responding to modern aesthetic trends that require full-glass windows, large, bright and with a clean and elegant design
  • achievable in many variations of color and finish, to adapt to any taste or architectural style, even in two-tone models, to make the windows perfectly in line with both the exterior and interior appearance
  • easy to maintain


Surely at first glance the main disadvantage is the cost of a modern aluminum window frame, if compared with cold cut or PVC windows. But on closer inspection, this is an initial investment that is paid off by the durability and strength of the window, as well as by the possibility of obtaining the deductions provided for renovations that improve the energy efficiency of a home.


If we search online, we will find numerous pages that suggest price ranges for an aluminum window depending on the size. The truth is that these are largely hypothetical and sometimes misleading figures, since the price is determined by too many variables to give an indication of the cost.

Indeed, one must consider:

  • the quality and performance of the profiles
  • the material used to make the thermal cut, on which the performance and energy class of the frame depend
  • glass, which can be double, triple, low-emission selective with argon gas
  • The dimensions
  • exposure
  • the finishes and the color chosen, or the colors, in the case of two-colored aluminum windows
  • the type of opening and the number of doors
  • if it is a wall fixture or must be used for the roof, a factor that makes even higher performance necessary
  • any accessories such as mosquito nets, blinds, roller shutters and electric motors.

The evaluation must be done on a case by case basis by an expert, because it is not just a matter of choosing based on personal taste and price, but above all on the basis of the technical characteristics that can guarantee the maximum result on your home. For an overview of all options and variants, see our aluminum frame models.


The installation of an aluminum frame must be carried out by qualified and certified personnel, otherwise you run the risk of nullifying the investment made even in the case of doors and windows with the best features and performance. Only a proper installation in fact guarantees an excellent result in terms of energy saving and the duration of the frame.

Once you have installed your aluminum windows, you will no longer have to worry about it, just enjoy the comfort and pleasure of living in a home with an always optimal climate. Maintenance of aluminum frames is in fact limited to periodic cleaning from dust and dirt, with a cloth and a neutral detergent.


Aluminum frames, if certified with the appropriate energy efficiency class, can benefit from the incentives, to the extent of 50%, for energy requalification interventions. It is sufficient to keep invoices and payment receipts made by bank transfer, ask the installer for a specific certification and send this documentation to Enea, with an electronic procedure to be carried out within 90 days from the end.


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