Blocked sinks and traps can occur at any time it could be due to items being dropped down them or just a build up over time of general sink wastes either way the blockage needs clearing as it can lead to leaking traps from the seals.
Small blockages can be tackled by the home owner using such products as Mr muscle drain clear etc. If the blockage is still not clearing then it is time to call Manchester plumbers we can clear the blockage for you before it does damage to the trap seals.
If you do discover you have a leaking trap give us a call we can solve this problem for you as well.
TIP: The best way to avoid problems is maintenance, a bit of bleach once a month followed by boiling water should do the job.