How To Identify And Unblock Blocked Drains In Your Home? Blocked drains can be a frustrating and inconvenient problem to deal with, but they don't have to be. By identifying the signs of a blocked drain and using simple DIY methods or calling in a professional plumber, you can get your drain flowing freely again in no time. By taking steps to prevent blocked drains from occurring in the future, you can save yourself time, money and the potential dangers associated with blocked drains.