Residents in Stutton were told they may have low water pressure or no water at all after a main burst on Thursday.
The issue was first reported just before 9pm in Bentley Lane where a burst water main has flooded the road.
Anglian Water issued a statement saying: "We're really sorry but some customers in Stutton may have low water pressure or no water at all.
"We're working to repair a burst water main in your area so we can get your supply back to normal as soon as possible, but it is proving to be a complex job that is taking longer than we had originally hoped."
Supplies were expected to be restored by 1am tomorrow, but Anglian Water confirmed the works had been completed by 4am.
The Anglian Water website can be checked here to see if your area is affected.
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