Robert I. Merrill is a Salt Lake company specializing in door and door hardware. As part of this specialization, they do alarm systems and access control systems. Generally, this is done by third parties contracted by Robert I. Merrill. I had mixed results with this company. Generally, they were helpful and efficient. However, this was not always the case. They would make appointments for installation and fail to show up. In other words, the product and pricing are superior, but the service is not.