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Why Your uPVC Windows are Cracking

As a company that offers the complete package for all customers who want the best in uPVC windows for their home, we at Oridow have been asked time and again as to why windows crack. Many homes nowadays make use of uPVC double glazed windows for their homes so as to not only keep their homes insulated, but also to keep their indoors protected from any weather elements. However, because of some factors, these windows tend to form cracks.

So to help you understand the reasons behind your uPVC window cracking, we at Oridow provide you a few reasons which you should keep in mind the next time you opt for double glazed windows for your home.

Improper Installation

Popping and cracking of windows can result from poor installation of windows. If a window is installed in a different frame, then the jamb sides of the frame can bend inward and pressure the window sashes. Also, if there is edge damage to the inner panes then that nick can spread slowly increase over time.

Weather Elements

If your home is located in an area where the temperature fluctuates too much during the day, then that can add to the stress of the glass material. Thermal stress can make the glass expand and because the glass has no place to expand, this event causes the glass to shatter.

To keep an eye on these factors, you need to take in some other instances which can let you know whether your uPVC installation has failed.

What Should You Look For?

  • Condensation
  • Leaks
  • Draughts


Condensation in uPVC windows can be fixed by paying attention to different aspects of your home such as the use of the room, the temperature of the inside and outside, the ventilation and the number of people in the room. In case of ventilation, you can use a dehumidifier to reduce it. Although it is always best to have high-quality windows in your home to start with.


If there are leaks coming from the frame, then it could be that the weather seals in your window failed to block the drainage. The best way to deal with this situation is to replace the weather seals and keep the window clean in case there is any blockage. However, it is still better to get in touch with the company who provided you with the windows.


Draughts mean that the seals in your window have broken down or have lost its elasticity over the years. In case of draughts, hiring a professional is your best option because you will have to fill the area between the wall and the frame to get rid of the cracks.

Keeping your eye on these points can keep your window from damaging further and can increase the longevity of your windows. Want to know more? Then contact Oridow and get to know more on how you can take care of your uPVC windows and doors.

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