Bottled water stations have opened at Matfield Village Hall and Tesco Superstore in Pembury. These will remain open until 21:00 BST.
“We anticipate that supplies will be returned before then,” a South East Water spokesperson said.
Deliveries of bottled water to vulnerable customers are also being arranged.
Lamberhurst St Mary’s Church of England VC Primary School has closed as it has no access to hot water.
“As a result of these issues, it is not safe for us to remain open,” the school said in a statement.
Pembury Primary School has also closed.
