If you are looking to improve home safety, then you should talk to one of the Denver fence companies, like http://metrofence.net/industries-served/residential-fencing/. They can guarantee you the safety that you want and need.
There are numerous types of fences, but if you are looking for something that also protects you, besides improving aesthetics and privacy, we have found the best option for you. They are made out of concrete or wrought iron, with plastic panels for privacy. But that is not it. They go up to 6 or 9 feet in height, and at the end they have a small sensor that is wired to the house alarm. It is silent and only announces you and the police. If you think there is no threat, you simply turn it off and go back to what you were doing.
You might think that it will go off every time a bird lands on the fence, but the sensors measure also the pressure the fence is put under. So you do not have to worry about that. But if you want more details about these new and innovative fences, then we suggest that you talk to one of the Denver fence companies and see what they have to say.