A massive clean-up operation got under way in earnest across flood-hit East Yorkshire and northern Lincolnshire on Monday as the wet weather eased off.
Twelve thousand homes in Hull have been damaged by the floods
Last week's flooding affected more than 13,000 homes, 500 firms and 150 schools in the region, causing damage running into hundreds of millions of pounds.
Hull East MP John Prescott urged Local Government Secretary Hazel Blears to visit the region to see the damage.
And council chiefs were meeting to help steer the city's recovery.
Hull City Council leader Carl Minns said a special sub-committee had been set up on Monday to co-ordinate the recovery effort.
"There needs to be a quick review of why each area flooded," he said.
"We need to get the facts because only with the facts can we try to mitigate the effects of future flooding."
Meanwhile, Humberside Fire and Rescue Service said heavy pumping operations were continuing in Burstwick, Barton-upon-Humber and Hedon Haven.
Flood victims were warned to look out for cowboy builders offering repairs.
However, police said there had not been any confirmed cases of looting despite reports of thefts from abandoned homes.
Two men were arrested on the Bransholme estate in Hull on Sunday on suspicion of looting but police found out on Monday they had permission to be in the properties.
National Flood Forum co-ordinator, Mary Dhonau, advised people to use recommended workmen "even if it means you are displaced for longer".
She said: "There aren't enough builders in the area for the homes who need one. People will go to the area and nobody knows who they are. They have got to check their credentials."
She said damage done by dodgy workmen could be even more stressful than the flooding itself, and could lead to people having to move out of their homes again.
Ms Dhonau advised people not to throw away flood contaminated possessions but to keep a detailed record of the damage, taking photographs, video and making lists for the insurers.
She estimated about one in four people in the affected areas were without insurance and emphasised the need for disaster relief funds.
"That's an awful lot of people who can't afford new accommodation and they don't have the money to replace all their items.
"People who haven't got insurance are having to don the marigolds and start scrubbing down themselves," said Ms Dhonau.
Insurers have said the cost of the damage across the UK is expected to top £1bn, with 27,000 homes and 5,000 businesses affected.