Marshall Alarm Systems

Business Details

50 Years

experience

Emergency

services

Your Trusted Security Partner in Yorktown Heights, NY

Marshall Alarm Systems has been a trusted provider of integrated security solutions in the Tri-State area since 1976. As a second-generation, family-owned business, we specialize in custom-designed fire alarm, security, video surveillance, and access control systems tailored to meet the unique needs of residential and commercial clients. Our team of certified professionals combines decades of experience with state-of-the-art technology to deliver reliable protection and peace of mind. We maintain partnerships with leading manufacturers, ensuring versatility in servicing both new and existing systems across Westchester County and beyond. Committed to honesty and integrity, we prioritize personalized consultations to educate clients on optimal security strategies.

Our dedication to quality extends to 24/7 monitoring, maintenance, and emergency response services. With a legacy built on trust, we continue to innovate while upholding the foundational values that have defined our company for over four decades. Our clients benefit from comprehensive solutions, including remote access control management and advanced video surveillance capabilities. Located in Yorktown Heights, NY, we serve Hudson Valley, Harrison, Mt. Kisco, and surrounding communities with unwavering professionalism.

Services

Security Systems Fire Alarms Video Surveillance Access Control Commercial Security Residential Security

Details

Year established: 1976

Highlights and features

We offer 47+ years of specialized expertise in security system design and installation.
Our NYS-licensed technicians provide 24/7 monitoring and emergency response services.
We maintain partnerships with leading security technology manufacturers for optimal solutions.
Our family-owned business prioritizes personalized consultations and client education.
We deliver comprehensive maintenance programs for long-term system reliability.

Associations and certifications

NYS Department of State

Website

Update Listing

Services

Security Systems

We design and install customized security systems for homes and businesses. Our solutions integrate intrusion detection, monitoring, and advanced threat prevention technologies. Systems adapt to evolving security needs while maintaining compatibility with existing infrastructure. Professional installation ensures optimal coverage and reliability across Westchester County and surrounding areas.

Fire Alarms

Our fire alarm systems combine engineering expertise with certified monitoring services. We provide complete lifecycle management including design, installation, maintenance, and code compliance inspections. Systems integrate with security networks for comprehensive building protection. Trusted by clients in Scarsdale, Harrison, and throughout the Hudson Valley region.

Video Surveillance

24/7 video monitoring solutions include analog, HD, and IP-based systems with remote access capabilities. Custom installations support real-time viewing, activity tracking, and extended storage options. Systems enhance security for commercial properties through employee monitoring and perimeter protection features across Westchester and Putnam Counties.

Access Control

Electronic access solutions manage entry points for businesses of all sizes. We implement proximity cards, biometric readers, and remote administration platforms. Systems integrate with video surveillance for enhanced security while eliminating traditional key management challenges. Available for single locations or multi-site enterprises.

Questions

What areas do you service?

We serve Westchester County, Putnam County, Dutchess County, Rockland County, Orange County, Bronx County, and Fairfield County.

Do you offer 24/7 monitoring services?

Yes, we provide 24/7 monitoring for security systems, fire alarms, and surveillance networks to ensure continuous protection.

Are your technicians certified?

Our team consists of NYS-licensed professionals certified in security system design, installation, and maintenance.

Can you service existing alarm systems?

We service both new and existing systems from all major manufacturers across the Tri-State area.

What types of access control systems do you offer?

We provide proximity cards, biometric readers, key fobs, and managed access systems with remote administration capabilities.

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Reviews (6)

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Christine Jedlicka

Dec 22, 2021 Report

Positive:Professionalism,Quality,Responsiveness,Value
Extremely pleased with our experience. Debbie didn't miss a beat! She is knowledgeable, proactive, attentive and thorough. She was considerate to our needs as a family when working with us to get us what we need. The product is easy to use and the customer service is TOP notch!

Simon Hanft

Oct 05, 2021 Report

First of all, Debbie is incredible to work with. Tremendous experience, lovely personality, understands home security in a way that few people do in the entire country. She has been in this business for over thirty years. Remarkable. Then the actual installation team with Marshall Jr at the helm. They were able to get the install done rapidly in a house that presents considerable challenges. Beautiful aesthetic work and done with incredible efficiency. I cannot rate them highly enough. I strongly recommend for anyone who is looking for even a simple home security project. And they can clearly handle

Monkey Dude

Sep 06, 2021 Report

Debbie was wonderful to work with. She has a great personality and is very knowledgeable about the alarm system. She walked through the house with me, letting me know what should recommended to be alarmed and why. When Marshall came to install the alarm, he was very professional and answered all my questions. He stayed to practice once the alarm was set up and made sure I was comfortable using it. They both reassured me numerous times that I can call anytime with any questions or concerns. Very nice company to work with.

Bradford Horton

Aug 24, 2021 Report

Utilized Marshall Alarm to install an updated security system and security cameras at a large residence. The service started with a security consultation where a member of Marshall Alarm's team comes to the residence to understand your security concerns followed by a walk of the property to point out potential issues and mitigations. From there they build and price out several options and then set you up for installation. From start to finish their team is very professional, attentive to detail and makes sure the customer understands and can work the system before leaving. Furthermore, the central

Zachary Jacobs

Jul 18, 2021 Report

We switched alarm companies and are delighted with the seamless transition. Very attentive staff listened to our needs, gave great advice on upgrades (at our request) without trying to oversell on stuff we don't need, and showed personal attention that other firms lack. Technicians very professional and take the time to get it right. Highly recommended.

Carlos Perez

Jun 16, 2021 Report

Marshall Alarm Systems has been great to us from the first day we reached out to them. Our interaction started off with Debbie, their specialist that came to our house for the assessment. She was very friendly and very knowledgably with what needed to be done. She also looked out for our wallet as she pointed out what needed to be done but most importantly what was not needed. She had our best interest in mind. When the technician came over to install, he was very courteous and professional. He was very efficient with his time and made sure that everything was perfect. He then took his time with