There is no one definitive answer to the question of why drains can become blocked However, a variety of human activities - such as cooking and washing - can lead to food or water getting trapped in drainage systems, which then causes blockages Additionally, heavy rain or snowmelt can cause rivers and streams to overflow their banks, leading to flooding on residential streets and properties Finally, construction projects (such as new buildings or roadworks) often involve digging up roads and sidewalks – this activity inevitably leads to dirt being washed into nearby drainage channels, blocking them completely If you're experiencing problems with your drains in Oldbury – whether it's intermittent stoppages or complete blockages – don't panic! There are many qualified experts out there who are capable of dealing with any Drainage issue quickly and effectively; all you need is access to reliable information about how drain cleaning works (and what products should be used) In addition: if you live in an area prone to floods due not justto rainfall but also riverbank erosion caused by urban development etc, please read our article on How To Prevent Flooding In Your Home