Thames Water is replacing just over four kilometres of water main in and around Alexandra Park in North London, home to the iconic Alexandra Palace. The project includes works on local roads such as, Etheldene Avenue, Park Road and Cranley Gardens, replacing ageing pipes to improve network resilience and reduce the risk of bursts and interruptions to water supplies for local homes and businesses.
The scheme is part of Thames Water’s biggest upgrade to its network in 150 years.
The utility company will be installing new water mains and renewing sections of the existing network through advanced pipe relining technology. This approach strengthens and modernises the infrastructure, helping to reduce the risk of future bursts and interruptions to water supplies.
Work is scheduled to finish in January 2029.
A Thames Water spokesperson said:
“We’re upgrading our network to ensure we can meet future demand. Replacing older mains in Alexandra Park will reduce leakage, improve performance and provide a more resilient supply for customers across the area. Our work will be carefully phased to minimise the local impact, with traffic management in place where required, and is part of our biggest upgrade in 150 years as we future-proof our customers’ water supply.
Thames Water has now replaced over 150km of its pipes since April 2025 and is replacing mains at twice the rate that it was just two years ago.
The company has worked with the local council to ensure that disruption will be kept to a minimum throughout the work, including noise and vehicle movement maintained at as low a level as possible.
