If a sink is blocked in Pennsylvania, Gloucestershire then it can be cleared using various methods. The first step should always be to try and remove any blockage yourself without needing outside help or expensive tools; this could involve trying to dislodge the clog with something like a bend coat hanger or even boiling water poured down the plughole over some time (try covering your drain with an old towel). Other DIY techniques you might find helpful include using white vinegar and sodium bicarbonate mixed into a paste consistency before applying onto the affected area of your sink for about 30 minutes - followed by flushing through warm water from above. Otherwise, get out that trusty plunger which works well on most kinds if carefully manipulated, but will only provide short term relief unless used properly combined with cleaning agents meant specifically for sinks and drains such as bleach-free Drainage Gloucestershireo products/gel etc. If none of these approaches work it may become necessary to contact professionals who are experienced at clearing pipes quickly via traditional auger/cable snaking equipment all specialty plumbing stores should stock them so finding one shouldn't present too much difficulty! Some companies also offer more advanced models featuring blades designed not just cut away obstructing materials inside drainage systems but also catch debris making removal speeding up processes significantly during particularly stubborn operations. Whatever approach taken remember have patience when dealing sink issues. Oh & keep fingers crossed working eventually pay off!