Repairing UPVC Windows Upvc windows are becoming more popular due to their durability and energy efficiency. uPVC is susceptible to damage over time and some of these damages may require repair. Often, repairs are more cost-effective than replacing your windows. Repairs are less disruptive to daily life. Repairing your windows will also increase the efficiency of your home's energy and appearance. Cracks uPVC is designed to be tough, energy-efficient and long-lasting. However, they can be damaged. If you have a crack in your window repair near me, it is important to fix it as soon as you can. If you don't take action, the crack could grow and cause further damage to your home. A uPVC expert can repair the window repair and avoid further damage. Your uPVC windows can crack for several reasons. The most common reason is due to temperature fluctuations. The sudden rise or decrease in temperature can cause the glass to expand or contract, which can lead to cracks.