There were multiple break-ins at the skate park.
''We know it has been out of action for a while, but we are so close to completion now. During construction, we have had to remove graffiti from people breaking in tagging it, loss of equipment and broken fencing,'' the company said.
''This is a construction site and has multiple hazards. It is fully fenced but kids and parents are taking it upon themselves to make their way in without permission.
''If there is a significant injury, loss of equipment or damage caused to the site now, there will be a full investigation and it will take longer to open. So please, parents sitting in your cars outside the closed skate park while your kids skate in a multiple hazard construction zone, take them home.''
During one weekend the company removed more than 40 people from the site, and has warned that if the police have to be called, people can be charged with trespassing.
The skate park renewal and extension has been designed by skate park designer Richard Smith of Rich Landscapes. A skater for more than 20 years, he has designed an environment that appeals to a wide variety of user groups and styles.
Steve Bowling Contracting also built the original skate park in 1994.