well its not rocket science thieves knocked the brickwork out of the back of jewlers shop near us and strait in to the jewel cabinet without setting the alarm off one weekendAs clarkey says, making sure the tracks are solid is a good start. At the unit I moved in to, they were fitted to steel uprights with tiny arc weld tacks every 18", I was surprised they hadn't fell off on their own, never mind if it had a break in.
All of the above suggestions are good, but ive been to price up security gates after a factory had a break in and all the theives did was wallop a hole through the brickwork itself, below the factory cladding, as much as I hate thieves, I was quite impressed at their 'outside the box' way of thinking
we had them installed by the company that replaced the doorthe snooper- where did you get these?
well its not rocket science thieves knocked the brickwork out of the back of jewlers shop near us and strait in to the jewel cabinet without setting the alarm off one weekend