Certification scheme

WaterSafe

The UK water industry's approved-contractor scheme for plumbers. WaterSafe-approved plumbers are qualified in the water fittings regulations that protect drinking water.

Verify on the official register →

45traders with a WaterSafe entry in the public data we track

Based on public register entries and source listings collected up to 10 Jul 2026. Not an official membership count.

Check a specific trader

Thinking of hiring someone? Confirm their current WaterSafe status on the official register, then run their name through our Cowboy Checker to see their reviews, credentials and company details in one place.

Where WaterSafe holders are

  • London4 entries tracked
  • New Romney2 entries tracked
  • Newcastle upon Tyne2 entries tracked
  • Holborn1 entry tracked
  • Leighton Buzzard1 entry tracked
  • Maidstone1 entry tracked
  • Nottingham1 entry tracked
  • Penryn1 entry tracked
  • Peterborough1 entry tracked

Trades that hold it

Plumber · 28Heating Engineer · 5Builder · 4Electrician · 2Security Systems / CCTV · 1Landscaper · 1

WaterSafe holders with review evidence

These businesses hold a current WaterSafe entry and have customer reviews we can show. This is a small slice of all holders, not the register itself.

Common questions

What is WaterSafe?

The UK water industry's approved-contractor scheme for plumbers. WaterSafe-approved plumbers are qualified in the water fittings regulations that protect drinking water. (Certification scheme.)

How many traders hold WaterSafe?

We track 45 traders with a WaterSafe entry, based on register and listing data collected up to 10 Jul 2026. This reflects the public entries we have collected, not necessarily the scheme's complete membership.

How do I check whether a specific trader holds WaterSafe?

Check the official register at https://www.watersafe.org.uk/, or look the trader up on MyTrustedTraders. Profiles show the credentials we have found for them, alongside reviews and other public evidence.

Keep checking

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We show what the public sources say, with dates. A listing here is not an endorsement, and absence from our data does not mean a trader is unregistered. Always confirm current status with the scheme before you hire.