Concrete – a blockage concern for your drains

Whether it’s spilled concrete from building an extension or carrying out building repairs, tile grout from a bathroom renovation, or you bought a property unaware that there was a concrete buildup in your pipes, drains blocked with concrete is a more common occurrence than you might think, and one that can be a nightmare for property owners. If you’re facing a concrete drain blockage, we can help; read on to find out more about how to tackle your blocked drain, and why it is important to do so sooner rather than later.

How concrete can affect your plumbing

Exterior drain, blocked

Concrete being poured or spilled down your drains unsurprisingly causes blockages or slow draining plumbing. If the concrete causes an immediate blockage, you’ll benefit from knowing about the problem early on so you can rectify the problem. However, what is all the more likely to happen is the concrete will stick to the sides of your pipes as it drips down your drains, reducing the diameter of the pipes and therefore affects the flow rate. On top of this, if the concrete reaches a bend in your pipes, it will settle at the bottom, making it more difficult for water to move past the concrete. This will cause waste to back up your pipes, potentially leading to a backflow of wastewater back into your property, emerging either in your sinks, toilets, drains or bath.

The importance of quick treatment

Blocked rusty pipe

While the concrete down your drain may not cause too much of an issue initially, come heavier rainfall – as Britain is often subjected to during winter – your drains will not be able to dispose of the excess water quick enough, leaving your property vulnerable to flooding.

Heavy rainfall isn’t the only problem either; day-to-day living within your home or business can lead to inhibited drain functioning as hair, food residues and grease wrongly make their way down the drains. With your pipes already restricted by the concrete, this further detriment to your draining will undoubtedly lead to full-blown blockages. Therefore, if you suspect concrete is reducing water flow down your drains, it is important to rectify the problem immediately.

Treatment methods

Drain jetting

There are a few methods you can use to clear concrete from your drains. Drain jetting, using a powerful jet of water aimed at the concrete, can help reduce small-scale and larger buildups. Failing that, an acid such as hydrochloric acid can be allowed to sit in the pipes to soften the concrete without damaging the pipes (this will be dependent on the material of your pipes – always check with a professional plumber or drainage team before putting any variety of acid down your drains).

Concrete cutting using drain jets can be used in conjunction with CCTV drain inspections to ensure a successful, complete concrete eradication in next to no time, ensuring that your drains are running optimally and capable of handling increased rainfall and day-to-day functioning.



If you’re in need of a concrete cutting drainage specialist to remove the buildup of concrete in drains on your premises, Express Drainage Solutions can help. We’re well experienced in tackling blocked drains and provide expert concrete cutting solutions across Greater London and the surrounding areas. Contact us today to find out more.

Want more information?Contact us today on 020 3124 1785

EDS unblocked and repaired over 20,000 drains last year for the residents and businesses of London.

Do we cover your area?


Express Solutions Group

Category: Drainage


NRSWA ISO9001 ISO14001 Chas Environment Agency NADC ROSPA QMS

Contact Express Group

We’re waiting to help you today!
020 3124 1785

Contact Us »