Why do I have low pressure?
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Why do I have low pressure?

If you’ve noticed sudden low pressure:

There could be a few reasons for this, a burst main for example that is causing a sudden dip in your pressure or flow. You will need to carry out a few checks:

  1. Check if the low pressure is only affecting your hot water, this would indicate an internal plumbing problem and you’ll need to contact a plumber. Approved plumbers can be found through WaterSafe or on the Water Industry Approved Plumber Scheme WIAPS.
  2. Turn your internal stop tap on and off 3 times while the cold kitchen tap is open. You should also check that your external stop tap is open.
  3. Check if your neighbours have the same problem, if not it is likely that it is an internal plumbing problem.
  4. Have a look at our In your area site to find out if there’s any work causing this.


If it still remains low after carrying out the 4 checks, please call our Services Helpline on 0344 346 2020 to report this.

If there’s continuous low pressure:

There are several factors that could mean that your house has a lower pressure and flow rate than at a different house:

  • The height of your house in relation to the reservoir
  • A smaller or older supply pipe
  • A shared supply pipe
  • A time of day with higher demand
  • Longer internal pipework

If you have no water:

Why do I have no water?

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