Security bars & fencing on flip/ remodel

[Amber Smith]

Does anyone know of companies that do temporary window bars or fencing? I just closed escrow on my second flip and there was already a break in last night. The previous owners have these heavy duty security gates on the windows but the company providing them charged 700$ a month, but that includes an on call security guard (not monitoring). I can’t seem to find any similar services out there. we’re going to do a security system with cameras & alarms, but it’s in a dicey area so I don’t think that will deter vandalism all that much. 

Thanks for any info!