About Marshall Alarm Systems


Marshall Alarm Systems, Inc. (MAS), located in Yorktown Heights, NY, is one of the foremost electronic security integrated solutions providers in the Tri-State area since 1976.

From custom designed and engineered fire, security, video and access control system installation, as well as central station monitoring, there is no job too small or too big. We represent all major manufacturers, allowing the versatility to service both new and existing systems, regardless of whether the project is with homeowners with smaller systems or large building corporations.

Marshall Alarm Systems provides professionally designed systems using state of the art equipment, a qualified and knowledgeable technical team, and a personal approach to provide our clients with the best solutions.

For over 47 years, Marshall Alarm Systems, a second generation, family owned and operated Security and Fire Alarm Company, has based our business on honesty and integrity. Our highly trained and skilled staff meets with every prospective customer to educate them on the various security options to fit their specific needs.

Every system we install is custom designed to meet our customer’s expectations. Technology is always changing, which benefits everyone; quality, integrity and excellent service are our #1 goal and the foundation with which this company was built.

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