How to Go About Repairing UPVC Windows

If your uPVC windows begin to show signs of failure, you may be wondering if you need to call in a professional to fix them. Here are some tips to consider if not sure of the best way to proceed. First, you have to figure out whether the break occurred only on one side of the window, or both sides. Then, you must know if the condensation is forming between the two glass panes.