We use cookies

We use cookies to give you the best possible experience on our website. By continuing to browse this site, you give consent for cookies to be used. For more details, please read our Cookie Policy.

Skip to content

Sink

How to unblock a sink

A blocked sink is usually caused by a build up of grime and dirt over time, which means this is normally your responsibility to fix if there’s an issue. Here's a step-by-step guide to help you.

Image: How to unblock a sink

How do I unblock a sink?

You can buy a sink and plughole unblocker product at the supermarket, which will have instructions for use on the back. Alternatively, you can follow the simple steps below to find out how to unclog your drain with things you might already have in your home:

Step one

Make sure your sink is dry.

Step two

Pour at least one whole cup of baking soda down the drain followed by two cups of boiling water.

Step three

Wait a few minutes.

Step four

Add one more cup of baking soda and a cup of white vinegar.

Step five

Plug the drain if you can. If you hear it bubbling and fizzing, that means it’s working.

Step six

Once the bubbles have all gone, you can wash it away with another two cups of boiling water.

Step seven

Try to keep your sink clean and don't wash food or fat down the plughole (this will stop it getting blocked again).

Step eight

You could also repeat the above steps once a month to keep everything running smoothly.

Report a repair

Tell us about the problem you’d like to fix using our simple online decision tool.

I need to fix an issue
Repairs and maintenance

Do you have an emergency?

Emergencies are situations that are potentially dangerous or a serious risk to health. Find out how to contact us in an emergency.

Emergency information

Help us improve our website. Did you find this web page useful?

Thank you for your anonymous feedback about our website. If you need help with a non-website issue please use our get in touch option.

Please add your comments below: