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YPS Plumbing Supplies - Water Regulations
YPS Plumbing Supplies

How well do you know your water regulations? 

What are water fittings regulations? 

The Water Fittings Regulations set out national installation requirements for plumbing systems, water fittings and water-using appliances. They are national requirements covering design, installation and maintenance. Their purpose is to prevent misuse, waste, excessive consumption or wrong measurement of water, and most importantly, contamination of drinking water.

 The regulations are: 

  • The Water Supply (Water Fittings) Regulations 1999 in England and Wales
  •  The Water Supply (Water Fittings) (Scotland) Byelaws 2014
  • The Water Supply (Water Fittings) Regulations (Northern Ireland) 2009

Where do they apply?
All plumbing systems, water fittings and equipment supplied, or to be supplied,

from public water supply in all types of premises come under these regulations.

They apply from the point where water enters a property’s private service pipe.

Premises that don’t have access to a mains water supply connection are not

governed by the regulations.

Water suppliers must give permission for many types of plumbing works, including:

  • New Houses
  • Business Premises
  • Some Swimming Pools
  • Garden Watering Systems
  • Rainwater Harvest Systems
  • Certain Bidets & Baths

You may need to get permission from your local water supplier before you start. This is to make sure plumbing systems meet UK standards designed to keep our drinking water safe for consumption. The Water Supply (Water Fittings) Regulations apply to all plumbing within the boundary of a residential or commercial property and to appliances such as washing machines. 

Notifying your water supplier is free and the process is quick, but failure to do so could result in prosecution or the need to carry out costly extra work at a later date.

Failure to comply with the regulations regarding new installations could mean the water supply is withdrawn. Consent will not be withheld unreasonably and may be granted subject to conditions, which must be followed. Under the regulations, if consent is not given within 10 working days it is assumed to have been granted. This does not alter the installer, owner or occupier’s obligation to see that the regulations are fully met.

Pipework responsibility:

You are responsible for:

  • The maintenance of the plumbing inside your property, for example, all pipework,

              water tanks, taps and overflows.

  • The service pipe from your property to the street boundary including any pipework

              crossing third party land. If you are unsure about the route of your supply,

              contact your local water supplier for advice on location and responsibility.


What you need to do:
It is the legal duty of the owner, occupier, installer or plumber to ensure the

regulations are met and to notify the water supplier before the work begins. 

If the owner or occupier doesn’t seek permission, then the duty rests with the installer or plumber.

To find out more about the Water Supply (Water Fittings) Regulations and notifications, visit your water supplier’s website or the Water Regulations Advisory Scheme at / or