Chiswick Water Outage: Burst Pipe Causes Low Pressure and Disruption (2026)

A burst water main has caused significant disruptions for residents and businesses in Chiswick, leaving many without water or experiencing low pressure this morning. This incident occurred near the Holland Park roundabout, creating a situation that has caught the attention of local authorities and residents alike.

Thames Water announced at 6:55 AM on Wednesday, January 21, that their engineers were promptly dispatched to the scene to halt the flooding. They are collaborating with emergency services to ensure the area remains safe for everyone involved. According to the latest updates from the company, water supply is beginning to return, although customers may initially notice lower pressure as the system gradually stabilizes and fills the pipes again.

Chiswick is one of the affected areas, specifically within the W4 postcode, which is included among several others experiencing disruptions—these include W1H, W6, W8, W11, W12, W13, and W14. If you find that your taps are running slowly or not providing any water at all, Thames Water reassures that pressure should improve as they work to stabilize the water supply.

Residents who are directly impacted by flooding are encouraged to reach out to Thames Water at 0800 316 9800 for assistance. Additionally, those requiring extra support during this outage can sign up for Thames Water’s Priority Services Register. This service offers additional help, such as providing bottled water to eligible customers, ensuring that no one is left without access to essential resources.

While the source of the issue lies in the W11 area, it has also led to traffic disruptions across west London. Transport for London (TfL) has reported road closures around the Holland Park roundabout, including sections of Holland Park Avenue and the A3220 West Cross Route, due to the ongoing situation with the burst water main.

Thames Water plans to release further updates by 10:00 AM, keeping residents informed as they manage this incident. Stay tuned for more news on The Chiswick Calendar.

Chiswick Water Outage: Burst Pipe Causes Low Pressure and Disruption (2026)
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