Do you have plastic windows at home? If so, you should know about this trick that will save you quite a bit of money over a year.

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Jan , 23. 12. 2025

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Plastic windows are now almost a common part of most buildings. In recent years there was a massive replacement in older properties and today most apartments already have this new standard, which is supposedly meant to improve life and save on housing costs. But that’s not always the case. People often complain about mold or, conversely, poor window sealing. It of course depends on the quality of the product itself, but many people forget one more important thing.

Did you know about this trick?

Plastic windows have a special screw in their frame that most people don’t even know about. It’s not there by accident; on the contrary, it provides a way to use plastic windows to the maximum and really save in winter. How to do it?

This screw is used to adjust how tightly the window sash presses against the frame. You can probably guess that this is crucial for heat loss and for air circulation. In winter it is therefore advisable to increase the pressure, which will prevent heat loss and can save you thousands of crowns in a single heating season. In summer it is appropriate to loosen the screw and release the pressure, as this will allow air to circulate better and prevent the build-up of high humidity that causes mold. To increase the window pressure, turn the screw counterclockwise; to decrease it, do the opposite.

Don’t waste money

By properly adjusting the screw you will make full use of the potential of plastic windows:

  • Lower heat loss and significant savings.
  • Adjustable air circulation according to specific needs.
  • Extended lifespan of plastic windows.

You will usually find this screw in the lower part of the opening sash of the plastic window. An Allen key will come in handy for tightening or loosening it. It’s a very simple procedure that will allow you to work with plastic windows so that their replacement truly makes sense and is advantageous for you. Try using this easy trick today.