Plumbing Advice

The purpose of the Water Supply (Water Fittings) Regulations 1999 is to ensure that you can have complete confidence in the quality of the drinking water you receive.
They apply to all plumbing systems, water fittings and appliances connected to the public water supply.
We all have an obligation to comply with the Water Regulations and water companies have an obligation to enforce them. To find out more about specific water regulations before you carry out any internal work click the link below.

Our responsibility

We protect and check the water we provide at every stage, from source to treatment works and then to households and businesses, so that you can have complete confidence in the quality of the drinking water you receive. When the water leaves our pipes and enters private premises, protecting its quality and preventing it being wasted become the responsibility of the owners and occupiers of the premises.

What you need to do

By law, owners and occupiers must ensure that their plumbing fittings have been designed, installed and maintained correctly to prevent drinking water being contaminated or wasted and we need to be told in advance of certain plumbing work that you plan to undertake.
Please click on the leaflet below for information about what you need to tell us in advance and for our notification form.

Or contact our Water Regulations team on:
0117 963 8516 (Monday – Friday, 8am – 4.15pm)
or email

Approved products

Any water fittings installed or materials used on your plumbing system (such as taps, cisterns, valves, solder etc) must be approved products. This means that they meet an appropriate British or European standard or have been tested by an approved testing house, to be sure they are fit for use and made of quality fittings that are safe to install in your property.