National Capital Alarm is an excellent alarm company. I have been with them for approximately 6 years, and in 2 different homes. Although not a large company, I actually prefer working with them because the owner knows exactly who I am, and the service has always been great. As an alarm company, they are very responsive, which is important. Sometimes, in a home, there can be some challenges with the home's construction, but Tony has always found a way to get the components installed and the system functioning perfectly. He is worth his weight in gold!