Installer: Overview

How do I confirm someone is a current member of an approved contractor scheme?

You can confirm membership by using the WaterSafe search facility or contacting the scheme in question.


Water Industry Approved

Approved by Regulator

A Plus (Anglian Water)

Association of Plumbing and Heating Contractors (APHC)

Water Industry Approved Plumbers’ Scheme (WIAPS) operated on behalf of 15 water undertakers

Chartered Institute of Plumbing and Heating Engineering (CIPHE)

Watermark (Severn Trent)

Scottish and Northern Ireland Plumbing Employers’ Federation (SNIPEF)



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Uncontrolled if downloaded. This is informative, non-statutory guidance and intended for general guidance purposes only; it is subject to change.

Compliance with this information should not be relied upon as guaranteeing no enforcement action will be taken by water undertakers. Water Regs UK accepts no liability for loss, indirect or consequential loss arising from or in connection with this guidance document.