We’re working with our plumbing partner Aqualogic to help fix leaky loos. You can fix your own loo yourself with our quick guide or book a free appointment with Aqualogic.
Leaky toilets are a major cause of water wasted in the home – up to 400 litres a day.
Many toilet leaks go unnoticed, as it is often just a small trickle at the back of the bowl, this can add hundreds of pounds to metered bills.
How to test for a leaky loo
If you are not sure if your toilet is leaking, you can try this simple test:
- Ensure the toilet has not been flushed for at least an hour, so the back of the pan should be dry.
- Place a piece of toilet roll at the back of the pan.
- If the toilet roll becomes wet, it’s likely you have a leak
How to fix a leaky loo
If you’d like to try fixing your leaky loo yourself, follow these steps:
- Check inside your cistern:
- If the water level sits at the tide mark, it’s likely a faulty flush valve (you may need a new outlet washer)
- If the water level is above the tide mark, it’s likely an inlet valve issue (you may need a new diaphragm washer)
- Identify your toilet make and order the correct replacement part
- Follow manufacturer instructions or trusted online videos to fit it
- Turn off the water supply before starting (using the local or main stop tap)
- Flush the toilet to empty the cistern
- Fit the replacement part
- Turn the water back on and test
Have you fixed your leaky loo yourself? Let us know by clicking on the button below. Every repair helps save water.
If you're unsure about carrying out repairs yourself, we recommend booking a free appointment with our plumbing partner Aqualogic. They can repair most toilet leaks (they will need access to your cistern*) and can also carry out a free water-saving check to help you save even more water.
There are terms and conditions, you can view these here.
To book your appointment with Aqualogic click below.
*Appointments are available for toilets with accessible cistern. Unfortunately, we can't repair concealed cisterns through this scheme.