Services Our Services Pre-Construction The design team is dedicated to deliver a satisfactory project that meets the owner’s objectives and budget. Design Our designers are provided with state of the art tools in the design, drafting and production of all projects. Installation Our system integration professionals focus on identifying comprehensive solutions tailored to the unique requirements of our customers. Service Our rapid response teams have the factory training and expertise to get your systems back online FAST! Central Station Monitoring Cornerstone provides around-the-clock alarm monitoring to multi-family, residential and commercial properties. Alarm Registration Find out if your city requires you to register your monitored security system.