You would know it is time to replace your windows if they are damaged, broken or look worn out. If you have installed uPVC windows from Koemmerling, we advise you to get in touch with our representative and request a home visit from our installers.
In the case of wooden windows, you can ask for a carpenter to help you. However, if you feel the damage is irreparable, or that the cost of repair is nearly equivalent to a new window installation, then also we suggest a visit from our technician. They can help you take an informed decision.
Keep in mind, or uPVC windows in India can last more than 20 years!