Everybody knows what a uPVC window or door looks like when they see it, but how do you actually know what it is? uPVC, abbreviated for plasticised polyvinylchloride, is strong and rigid when it is used in its original form. uPVC is a durable, maintenance-free, long-lasting material that is popular in homes. However, there are some issues. We can help you with these problems.
Despite its strength, uPVC can shrink or swell in extreme weather conditions like excessive heat and wet weather. Although it shouldn’t cause permanent damage, temporary issues can be frustrating and even dangerous.

Homeowners most often experience uPVC expansion in hot temperatures. UPVC can expand at 40 degrees Celsius by up to 2.4cm.

It is easiest to wait for the plastic’s to cool. This will allow the uPVC to return to its original form. However, time constraints make this difficult. To speed up cooling, you can spray the uPVC with coldwater or use a damp cloth to rub the plastic down. If that fails, uPVC windows and doors come with easily-alterable flag hinges. These hinges are designed to allow for heat expansion and can be adjusted as needed. Be aware that plastic may need to be re-adjusted back to its original position if it returns to normal temperatures. This is why we recommend that you consult a specialist if this problem continues to occur.

Another problem that may be encountered is the “dropping” of a door. Dropped simply refers to a door that becomes difficult to lock, or that catches on its frame when closed. This could be a sign that the door needs to be replaced.

There are many reasons a door might fall, but the most common reason is:

Because of the sheer weight of windows and doors, especially with glass or glazing, and because they are supported on one end of the frame with hinges but not the lock side, this makes it heavy for the hinges over many years and can cause them to wear down over time.
Wear and tear – We’ve all been through a door and know that the years of opening and closing doors and windows can take their toll. They can eventually fall.

Flag hinges are used on most doors and windows. They can be adjusted in all directions, but be aware that some older doors and windows have fixed hinges. These hinges can only be adjusted up and down, not left and right like flag hinges.

To check if your window or door has fallen, close it slowly and look at the edges. Sometimes, the sign that your lock isn’t working properly or not at all is when the bottom of the door or window rubs against the floor. This will allow you to adjust the hinges in the right direction. This can usually be resolved with a little adjustment.