There is a new physical security company in town. If you don’t want to go with bars on the windows, consider security screens.
I visited with Cove Cook who owns Fuertec Security Screens in David. His product is very impressive. He told me that his security screens are more intrusion proof than iron bars and attractive to boot.
He showed me a door in his factory that he said he invited potential customers to test. He said he had it on display for over two years and no one has been able to get through it yet. Following is a YouTube video showing its manufacturing process and durability.