D & I Electronics, Inc. has been in the Will County area for over 33 years providing security needs for thousands of businesses and residences. We are the only company providing central station services right here in the local area and not in Texas, California, or some other distant location. The main product our company sells and installs are burglar and fire alarms; however, we also install central vacuum systems, intercom systems, and business telephone systems. We look forward to serving you!