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Advice & Tips

8 Questions Answered on Unblocking Blocked Drains, Toilets & Sinks

Published: 20 October 2020 Updated: 26 January 2026
Blocked drain warning sign near a drain

Blocked drains are unpleasant to deal with and can be a health hazard too. Whether it is a blocked sink, blocked toilet, or blocked drain outside, we can help. Here are answers to the eight questions we are asked most often.

Why do drains get blocked?

The most common reason for blocked drains is the build-up of debris such as hair, fat, grease, wipes, and food waste. Roots, scale, and damaged pipework can also cause recurring blockages.

Should I use chemicals to unblock a drain?

We do not recommend using harsh chemicals as they can damage pipework and be harmful to your health. If you do use them, always follow the instructions and keep the area well ventilated.

Can I unblock a drain myself?

Minor blockages can sometimes be cleared using a plunger or drain snake. If the blockage is severe or keeps returning, it is best to call a professional.

Are blocked drains dangerous?

Yes. Blocked drains can lead to sewage backups, bad smells, and bacteria. They can also cause water damage and create slip hazards.

How long does it take to unblock a drain?

The time depends on the severity and location of the blockage. Many can be cleared within an hour, but more complex issues may take longer.

What is best to use for unblocking blocked drains?

A plunger or a drain snake can help with minor blockages. For more serious issues, professional equipment such as high-pressure jetting is the most effective solution.

How much does it cost to clear a blocked drain?

Costs can vary depending on the issue and access. We provide clear, fixed quotes before work starts so there are no surprises.

Can I prevent drain blockages?

Yes. Regular maintenance, drain guards, and avoiding flushing wipes or grease can significantly reduce the risk of blockages.

If you need help with blocked drains, sinks, or toilets, we offer a 24/7 emergency service and aim to be with you within one hour of your call. Give us a call on 0121 694 5185 and our engineers will be there when you need them most.

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