Winter is a test of efficiency, durability and also tightness for windows. A few simple steps need to be taken before temperatures drop below zero. This will prepare your windows for sub-zero temperatures. This will save you money on heating bills and such windows will guarantee a warm home.
Window preparation involves several stages
First, it is important to wash the windows. Don’t do this when it’s sunny, as the water dries quickly and leaves hard-to-remove streaks on the surface, and conversely, when it’s cold outside, the low temperature will cause the glass to become brittle and may break. It is therefore best to clean windows on a warm day when it is cloudy.
To clean windows, use products designed for this purpose. Vinegar is also proven to remove grease and also give your windows a shine. If you use only vinegar, it can leave streaks, so always mix it with water. Additionally, if you have PVC window frames, you can use the vinegar mixture on them as well. Frames made of other materials clean well with water and detergent.
Use fabrics that are soft and have no seams to wash your windows. Absorbent microfiber cloths are best. They trap dust and dirt well while not damaging the surface being cleaned. Clean devices that provide fresh air without cooling the interior. If the window is equipped with a vent, remove it and rinse it in water and detergent.

The next stage is to check the status of the windows and then set the following
If your windows are already clean, it’s time to assess their condition. Always check if the window can be opened and closed easily, if it seals well and other things. Leaky windows are a sign that the fittings or hinges are not working properly. If this is the case, set the windows properly for the winter and then maintain them that way.
You can easily do the window adjustment yourself. It is especially important before the winter season. We adjust uPVC windows by increasing the sash to frame contact force. You do this by using eccentric screws located on the sash fitting. You will also need an Allen key to make the adjustment, which you will use on the head of the screw towards the seal.

Remember to also clean all parts of the window, including the moving parts of the window hardware and PVC hinges, with a cleaning agent and lubricate them with a special oil, petroleum jelly or silicone lubricant. This will prolong the life of these elements and keep the windows working perfectly.
Replace damaged seals with new ones made of weatherproof material.