Charge to open a BS 5 lever mortice lock and change the lock (Non Emergency)

It is very important that you have a secure home. Should you suspect that your current euro cylinders are outdated and vulnerable to attack, you should seriously consider replacing these locks with high security, 3 Star cylinders. The euro cylinder can be the most vulnerable part of your door. By using techniques that we will not discuss here, a burglar may be able to gain access in less than 60 seconds, if you have an antiquated or ill fitting cylinder. The BSI kitemark is a certification mark that represents safety and quality and is trusted and respected throughout the world. In the UK a growing number of insurance companies now insist that any euro  lock fitted to an external door must have a British Standard Kitemark

The Millenco Mantis Mechanism is one of the more expensive lock mechanisms to replace and this will definitely be reflected in the final price you pay.  The Millenco Mantis MK1 is the only mechanism that has the unique 117/86PZ measurements that match the door handle. It may be possible to repair these locks but that is at the locksmiths discretion, as sometimes other parts of the lock may fail afterwards.  Many locksmiths feel it's best to supply a new system so they can provide a 12 month warranty.