Students leave digs with damage.
And a third of landlords reported problems with non-payment of rent from students in the West Midlands, including those at Coventry University and the University of Warwick.
Both figures are above the national average and landlords have responded by pushing up rent levels.
The news comes as thousands of students search for properties in time for September.
The survey by Endsleigh Insurance also showed some landlords are spending less than they should on security and safety, with only 69 per cent of homes having smoke alarms.
Tim Larden, of Endsleigh, said: "It is clear a number of landlords in the area are complacent about crime and are failing to invest in basic crime prevention, leaving their investment, and their tenants at risk.
"New and returning students should find that there is more property on the market."