If you are prepared to spend anything from £40 to £60, that is good enough when it comes to door handles.
There are times when a door handle becomes loose or stops functioning property, and it is important to get the situation examined immediately. Most professional carpenters and tradesmen have experiences related to this job, and will be good enough to perform your part too. In case the door handle seems to be moving away, removal may be required, after which tightening, patching or moving of screws may be performed. A professional will be able to assist you regarding your particular situation in a proper way.
In certain situations, the inside mechanism of a handle may require attention too. This happens mostly if the door in question is associated with locking. At times, the handle may demand replacement. However, note that this case is extremely rare. But, in case that ends up happening though, the cost of your job will be determined by the kind of handle you select. When it comes to labour cost, it is normally dependent on the time taken by the work.