More than half of homeowners in London may not be using approved plumbers for work in their home, according to research by WaterSafe Register, the UK’s national register of approved plumbers.
Just 50% of London homeowners say they only use approved plumbers for home plumbing work – one of the most effective ways to protect water quality at the tap.
Drinking water quality in England is high, with overall compliance reaching 99.97% in 2024 according to the Drinking Water Inspectorate (DWI).
However, the DWI’s latest annual report shows that more than 31% of all water quality events that year occurred on consumer premises – linked to issues including pipework fittings, cross-connections, lead pipes, nickel leaching from taps and connectors, and the improper use or absence of backflow protection.
Jonathan Samuel, Managing Director of WaterSafe Register, said: “Choosing an approved plumber is one of the most effective ways homeowners can protect their drinking water. Approved plumbers hold recognised qualifications and understand the water regulations that keep tap water safe.
“Safe, high-quality plumbing prevents contamination, avoids costly leaks and maintains drinking water quality. I’d encourage all homeowners to visit watersafe.org.uk to find their nearest registered plumber or specialist water contractor.”
Homeowners who use an approved plumber may also avoid the need to notify their water company before certain types of plumbing work, saving time and reducing the risk of a non-compliant installation.
To find an approved plumber in London, visit watersafe.org.uk.
