The cost of installing security cameras varies depending on the number, type and location of the security cameras. A single-unit camera system can be purchased and installed for roughly $150 on the low end. Installing four outdoor security cameras for your home can cost anywhere from $999 to $1,999, including installation. The labor cost of installing security cameras ranges from $80 to $200 per camera. This price is dependent on whether the camera is wireless or wired, as well as if it is a CCTV or IP camera.