A monitoring security system can be coupled to a thermostatic HVAC control module, either wired or wirelessly. In at least some embodiments, an interactive interface of the monitoring security system can communicate with the thermostatic HVAC control module. Information as to operation of the monitoring security system and the thermostatic HVAC control module can be presented on a common display of the monitoring security system, and commands that are directed to the thermostatic HVAC control module can be entered via the monitoring security system.