KK UPVC Door's & Windows Dundee Ltd is an expert in UPVC door repairs in Dundee and deals with UPVC door problems daily, providing clients with quick and cost-effective solutions. We fit new parts as routine, but parts may be a problem if you have an older UPVC door. We remove working mechanisms from UPVC doors when we fit new composite doors to keep your old door working like new, saving you hundreds of pounds. Below you will find answers to common questions and issues that arise regarding UPVC doors. If you don't see the answers you are looking for, please call our team. UPVC Door Multi-point Locking Mechanisms Multi-point locking systems have several individual locking points that simultaneously move when turning the key or handle. The main parts of a multi-point locking system are the hook, deadbolt, roller cam and centre latch. Importantly, suppose all of these parts are in good working order. In that case, they enable the door to open and lock smoothly and provide outstanding security against any attempts to force the door open when locked. We had found that many people in the past have had entire multi-point locking mechanisms replaced unnecessarily. Replacing certain sections of the multi-point lock would work. KK UPVC Door's & Windows Dundee Ltd approach is to ensure we provide you with the most cost-effective solution to the problem.