If your sink is blocked in Sundayshill, Gloucestershire then there are a few methods you can try to unblock it yourself. The most common method used for this job would be using a plunger start by putting the cup of the plunger over the plughole and pushing down with steady pressure before pulling up quickly. This creates suction that should dislodge any blockages that may have been present. If this doesn't work then another tactic could involve pouring boiling water into your sink rather than cold; if possible get an old kettle or pot, fill it with hot water (but not too much) and pour gently around where the opening of drain trap goes into pipe in wall as well as directly onto plug hole area itself to help soften debris already built-up inside pipes/drain traps below, so they eventually break away more easily when flushing through again afterwards -when done use rubber gloves or something similar just incase some splashing back occurs from loosened particles! A final option might include using vinegar mixed equally parts baking soda which forms bubbles upon contacting surfaces blocks resulting stronger blasts various pieces detritus come loose allowing them pass overall plumbing system without impediment.