Checking for problems with your supply and pressure
How to check for issues with your water supply, test your water pressure, and what to do if you think you have a problem
What to do if you have no water or low pressure
If you have no water or low pressure there may be a problem in your area. You can check to see if something has already been reported on our interactive map.
Before you report a problem to us, there are some checks you can do yourself to work out what and where the issue is.
What you can check at home
To make sure you’re receiving the maximum water flow possible, first check that your internal stop tap is fully open. You can usually find your internal stop tap hidden under the kitchen sink.
If the stop tap isn’t fully open, turn it gently and see if that helps improve the pressure.
We also recommend taking a careful look at all of your household appliances for any hidden leaks which can contribute to low pressure.
How to test your water pressure
You can easily test your water pressure at home, using a one litre jug and a timer.
- Make sure all of your taps are turned off completely, and any appliances such as a washing machine or dish washer are not in use
- Turn your cold kitchen tap all the way on and time how long it takes to and fill the one litre jug with water, it should take around seven seconds
Check with your neighbours
If other people living on your street are having the same issue as you, it's possible that there's a problem in your area.
You should also check whether your neighbours have been doing any plumbing work on their homes. It's common that one pipe can supply more than one home, but your neighbours may not realise they've affected other homes.
If it's just your home or property that's being affected and your neighbours' supplies are all ok - contact a plumber for help.
If you've had some plumbing work done in the last 48 hours it could be related. It's best to contact whoever carried out the work, but you can also use our approved plumbers list to find a plumber near you.
Possible causes of supply and pressure issues
The most common causes for supply interruptions are bursts, home plumbing problems and network issues, including:
- an unseen, internal or external leak
- an air lock or blockage in the pipework
- faulty plumbing work
Your flow can also be affected by:
- high demand in the morning and early evening
- the size and condition of your service pipe
- the height of your building
If you're on a shared supply pipe, the number of neighbours that are also supplied by the same pipe can affect your water pressure.
There are some tests you can carry out at home to check for leaks that may be hidden from view.
Your pressure issues could also be related to an air lock or blockage in the pipe work. You can try to clear the blockage by turning the cold tap nearest your internal stop tap fully on and then turn your internal stop tap off and on 7-8 times in succession. If the problem continues after that, you should contact a plumber to investigate.
If you've had some plumbing work done in the last 48 hours, change in pressure could be related. It's best to contact whoever carried out the work, but you can also use our approved plumbers list to find a plumber near you.
If your pipes are in poor condition, changes in pressure can strain the pipework and cause it to burst, so it’s important you protect your pipes during cold weather and contact a plumber if you spot any damaged pipework.
You have no hot water, but your cold water is flowing
If your cold water taps are working, but the water coming from you hot water is not heating up, this indicates an internal problem - possibly with your boiler - which a plumber should be able to help you with. You can find a reliable, local plumber using our approved list of plumbers.
Things we are responsible for, and things you are responsible for
You and your water supplier split responsibility for water pipes and fittings depending on where the infrastructure is. Pipes within a property's boundary are the responsibility of the home-owner. Water meters, and infrastructure on public land, are our responsibility.
When the problem is our responsibility, we’ll fix it as quickly as possible. If the issue is your responsibility, we’ll provide all the advice you need to get it fixed.
When we do need to carry out repair work on our network, it’s our aim to ensure your service is restored in less than three hours, however larger jobs can sometimes take longer.