The first step to clearing a blocked drain in Cooper's Hill, Gloucestershire is establishing the source of the blockage. If you can see what is causing it then there are several tools and techniques that may help clear your drainage system. A plunger or an auger assembly using a flexible metal cable with a cutting head at one end can be used as well as some chemical agents such as caustic soda which breaks down any organic matter clogging up pipes. You could also employ professional services from local plumbers who have advanced equipment for dealing with more severe blockages including hydro-jetting machines and cctv technology to locate problem areas quickly and accurately before beginning work on clearing them out safely. Blocked drains should always be handled by experienced people since they involve hazardous materials so make sure whoever you hire has credible experience in this field if possible