Thames Water is facing growing criticism, after another flooding incident caused traffic chaos in Brent.
There has been a spate of burst mains and floods in the past year and the water company has been blamed for failing to replace dilapidated pipes and improve old sewer networks.
Longstone Avenue, in Harlesden, was closed last Tuesday when an underground main burst and spilled on to the street.
Hundreds of residents in the surrounding area lost their water supply and thousands of others experiences a loss of pressure in their taps.
Councillor Daniel Brown, responsible for Brent's highways and transportation, has called for Thames Water to explain the incident and has repeated demands for the company to tackle the problem of flooding.
He said: "Brent residents and those visiting our borough do not deserve to face regular disruption as a result of water companies failing to maintain or preserve a drainage system that is fit for purpose.
"Having been in contact with the company quite a bit in recent months, I have repeated my demand for a full explanation of exactly what they intend to do to prevent these ongoing problems.
"As a council we remain determined to ensure that Brent becomes cleaner, greener and safer for our residents.
"Burst water mains on a repeated basis hamper all of these aims. Thames Water must play its part and properly serve their customers, and our local residents."