Flooding in Great Yarmouth was caused by a power cut according to Anglian Water.
The company have carried out an investigation since Friday, after Camden Road, Blackfriars Road and Southgate Road were flooded.
They say that the flooding led to the pumping station on Bryant's Quay to stop working, causing the sewer system to back up and overflow.
They are now looking at what caused the problem and how they prevent it from happening in the future.
A spokesman said: 'We're very sorry for any upset and inconvenience caused on Friday.
'We visited each of the five customers affected and offered clean-ups to help get things back to normal.'
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