Window and balcony door adjustment for winter and summer: how to ensure year-round comfort

Window and balcony door adjustment for winter and summer: how to ensure year-round comfort

Did you know that most modern PVC windows and balcony doors have a hidden feature designed to adapt to the changing seasons? It is seasonal adjustment - a simple mechanism that lets you change how firmly the window sash presses against the gasket.

This seasonal adjustment helps improve home comfort, increase energy efficiency and even protect window and door fittings from premature wear. In this guide we explain the principle behind winter and summer modes, how to carry out the adjustment yourself and when it is time to call a professional.

1. The two-season principle: why adjust windows at all?

The purpose of seasonal adjustment is to ensure the optimum seal of windows and balcony doors at different times of year.

• In winter: the priority is to retain heat indoors and keep out draughts. Switching windows and PVC doors to the winter position increases the sash pressure against the rubber frame gaskets.
  Benefits: better sealing, reduced heat loss, lower heating bills, less cold air entering through windows and balcony doors.
• In summer: a tight seal is not necessary. Switching to summer mode reduces the load on gaskets and mechanisms.
  Benefits: better micro-ventilation, easier opening and closing of windows and doors, less wear on gaskets, longer service life.

2. DIY guide: how to adjust windows and PVC doors

Window and balcony door adjustment usually takes just a few minutes:

1. Open the window or balcony door and find the adjustment cams (eccentrics) on the side of the sash.
2. Read the markings - the position of the marker indicates the compression level. The closer to the gasket, the better the seal.
3. Winter mode - use a hex key to turn the cam towards the inside of the room.
4. Summer mode - turn the cam towards the outside.
5. Check the seal - place a sheet of paper between the window and the frame. If you cannot pull the paper out easily when the window is closed, the seal is good.

3. When is professional help needed?

Contact a window technician if:

• The window frame is warped or damaged.
• You can still feel draughts even after switching to winter mode.
• The handle or hinges are broken or stiff.
• The window has shifted significantly out of alignment.
• The balcony doors do not close properly.
• You still feel cold even after adjustment.

Regular seasonal adjustment of windows and balcony doors is a simple yet highly effective way to keep your home warm in winter and comfortably cool in summer. Just a few steps twice a year can help cut heating costs, extend the life of your windows and ensure maximum sealing.

If you would prefer professionals to handle everything - book a window and PVC door adjustment service anywhere in Lithuania.