Blocked drains are a real pain. You should always try to avoid blocking your pipes completely. Once you noticed that your drainage is starting to clog, take actions immediately. Your drains are starting to clog once your drains begin to slow down or when water remains pooled in your sink. You can try to do it yourself, depending on the degree of blockage and other conditions. It’s always best to hire one of our Plumbers Hornsey to help you in this problem.If you can’t prevent a blocked pipe then here are some tips to help you deal with it: Which drain is blocked?