Find an approved installer

WaterSafe is a free online directory listing thousands of WaterSafe approved plumbers across the whole UK. It can also be used to search for installers, approved by contractor schemes, who do specific types of work such as testing RPZ valves and or installing supply pipes.

To find out more visit



How they search:

The search is based on post code only. If you do not know the post code enter the first part of a post code near to you.
Results are displayed showing those contractors nearest to you. e.g. for “NP11 4EG” enter “NP11”


Featured links are those contractors who may be based further away from the post code area but who offer services in the area e.g. regional or national companies.


Approved plumbers are WaterSafe registered. All other installers/testers are affiliate members of the seven Approved Contractor Schemes.

Plumbers: Approved Plumbers can work on all parts of a plumbing system, from the external supply pipe right up to the kitchen and bathroom taps.

Groundworkers: Approved Groundworkers can work on the supply pipe (the underground pipe) supplying your property, up to the internal stop valve.

Catering Installers: Approved Catering Installers can install commercial kitchen equipment.

Point of Use Installers: Approved Point of Use Installers can install cold water chillers connected directly to the mains.

RPZ Valve Testers: For commissioning and testing RPZ backflow prevention valves.

Important Information

Water Regs UK recommend you read this important information during the selection process and employment of any potential contractor.

  • WaterSafe approved businesses employ qualified operatives. It is an individual not the business that become Approved Contractors for a specific scope of work.
  • Please note, the checks made on members focus on technical competency and to ensure they adhere to WaterSafe’s requirements. For example approved contractor’s have been vetted to ensure they hold recognised qualifications. You may wish to conduct further checks of your own
  • Your contract will be with the approved contractor or their employer and not WaterSafe or Water Regs UK, so we cannot give assurance of their availability or guarantee their work.
  • We recommend that you ask in advance, whether there is a charge for giving a quote.
  • We recommend that you obtain at least 3 quotes to give you a comparison of the likely cost of the work.
  • We will not get involved in any contractual disputes between you and the contractor. However if you believe that the work completed may not comply with water fittings regulations then you should use the appropriate complaints process.
  • Please make sure the work is carried out or witnessed by a named approved contractor listed as being approved for that company.
  • Please make sure you receive a work completed certificate on completion of the work. This document gives you a legal defence provided that the approved contractor is approved for the scope of work completed.

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