Damage was done to the roof and drainage, causing leaks inside the bandstand.
The vandals broke drainpipes which caused a leak from the roof.
Graffiti and ant-climb paint was found 'smeared' on newly painted walls and doors.
Hinckley and Bosworth Borough Council said the work was done in anticipation of the return of public concerts and entertainment
They have issued an appeal to find the culprits.
Last week police confirmed they would be undertaking 'proactive patrols' around Hinckley's parks due to large groups of teenagers fighting.
This is when Ashby Road crossroads will be closed
LOROS will make improvements to main hospice building with Government cash
Professor Dame Carol Black given Freedom of the Borough
New snow leopard moves into Twycross Zoo
East Midlands Airport fined nearly £900,000 for environmental pollution
Appeal for woman to come forward who may have witnessed robbery in Earl Shilton
Six-year-old patient has behind-the-scenes lab tour at the Leicester Royal Infirmary
Four Leicestershire country parks awarded prestigious Green Flag
