About

Alarm Systems, Inc. (ASI) is a locally owned and operated security and life safety company proudly serving Quincy and the surrounding region since 1974. We specialize in commercial and residential alarm systems, video surveillance, access control, fire alarm systems, and mobile security trailers.

With nearly 50 years of experience, ASI is committed to protecting what matters most to local families, businesses, and organizations. We offer customized solutions, professional installation, and 24/7 monitoring — all backed by responsive, hometown service you can trust.

Whether you're securing a small business or a large facility, ASI is your partner in safety and peace of mind.