12 Sep

Common uPVC Window Problems and How to Fix Them

Posted at 6:03 AM, September 12, 2023 by AIS Windows / Category: UPVC Windows
Common uPVC Window Problems and How to Fix Them Read More

uPVC (unplasticized polyvinyl chloride) windows have become increasingly famous due to their durability, energy efficiency, and low maintenance requirements. However, uPVC windows can encounter issues over time like any other type of window. Understanding these common problems and knowing how to fix them can help homeowners ensure their windows remain in top condition for years to come. 

In this article, we will explore some of the most prevalent uPVC window problems and provide effective solutions to address them.

  • Difficulty in Opening or Closing the Window

    One of the most common issues with uPVC windows is difficulty in opening or closing them smoothly. Several factors, including dirt and debris buildup in the window tracks, misalignment of the window sash, or worn-out hardware, can cause this problem.

    Solution: Contact a reputable window repair company to inspect and address the issue. A professional technician will assess the window tracks, sash alignment, and hardware to identify the root cause of the problem. They will use specialized tools and expertise to realign the sash, replace worn-out hardware, and ensure the smooth operation of the uPVC window.

  • Leaky uPVC Windows

    Leaky windows can cause drafts, leading to energy loss and reduced indoor comfort. Leaks in uPVC windows usually occur due to gaps or cracks in the window frame or seals, which can result from wear and tear over time or poor installation.

    Solution: Inspect the window frame and seals for any visible gaps or cracks. Contact a professional window repair company for larger cracks or gaps to address the issue adequately. Additionally, check the condition of the weather stripping and replace it if necessary.

  • Condensation Buildup

    Condensation forming on the interior surface of uPVC windows can be a common problem, particularly during cold weather. It occurs when warm, moist air inside the house comes into contact with the cold surface of the window, leading to water droplet formation.

    Solution: AIS Windows offers a comprehensive solution to address condensation buildup on your uPVC windows. Our skilled technicians will thoroughly assess indoor humidity levels, ventilation, and window conditions. And we recommend improving ventilation through extractor fans and ensuring adequate airflow in your home to reduce condensation. 

    If necessary, we would also suggest using dehumidifiers to regulate indoor humidity levels. Additionally, we might install trickle vents on your uPVC windows to enhance controlled air circulation and prevent excessive moisture buildup. 

  • Cracked or Damaged uPVC Window Frames

    Having cracked or damaged uPVC window frames can be a concerning issue for homeowners. Over time, these frames might develop cracks due to extreme weather or accidental impacts. These cracks can worsen and compromise the window’s overall structural integrity when left unattended. Not only does it affect the window’s appearance, but it also reduces its effectiveness in providing insulation and security.

    Solution: AIS Windows offers a comprehensive solution for cracked or damaged uPVC window frames. Our skilled technicians conduct a thorough inspection to assess the damage’s severity. We use specialized repair kits with high-quality adhesive solutions to restore the frame’s structural integrity for minor cracks. And recommend suitable uPVC frame replacements in cases of extensive damage, ensuring a secure and aesthetically pleasing solution for your windows.


uPVC windows are a prevalent choice for homeowners due to their numerous benefits, but like any other home component, they can face problems over time. Understanding the common issues that uPVC windows may encounter and knowing how to fix them can help homeowners maintain their windows’ efficiency, functionality, and appearance. 

Experience unmatched expertise in uPVC window repairs and replacements with AIS Windows, India’s leading integrated glass and window solutions company.

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