Have peace of mind knowing your family and home are secured around the clock. Our residential systems are custom tailored to meet the needs of every home across New England no matter the size or setting.


Protect your business from intruders who wish to cause it harm. Our team of sales engineers design and integrate state-of-the art systems that will meet all your security needs. Whether you’re a large scale hospital or a small family owned shop, we have you covered.


Increase your security by having your residential or commercial systems monitored 24/7 using a landline or the latest internet or cellular communicators to notify the appropriate authorities and personnel.

Interactive House

Click on each highlighted item to learn more about Monadnock security integration.


Monadnock Security Systems, Inc. (MSS)

As we celebrate our 20th anniversary, Monadnock Security Systems continues to offer sales, service, & installation of both residential and commercial systems including burglar alarms, access control, real time cellular video, video surveillance, fire alarms, environmental detection systems and more. Our monitoring service is always 24/7. Our engineering staff specializes in custom and unique system designs tailored to the type of facility, staffing, and electronic security you may need.


Monadnock Security has been designing and installing state-of-the-art, integrated systems with remote monitoring and maintenance since 1994. We are a privately owned company servicing the New England corridor. Whether you lease, own, or rent a house, apartment, warehouse, business, shopping center, place of worship, or building, we have you covered.
Our equipment services Department of Defense locations, DOD sub-contractor facilities as well as local area hospitals, businesses and the residential community. We offer our clients the ability to perform full system integrations and custom specialty applications. This is made possible by our staff’s elaborate technical backgrounds and years of experience in the field of electronic systems. Thus, we are able to integrate non-conventional systems & interface other hardware manufacturers for custom modifications at the technical level. This enables our clients to have an entire system functional to their specific needs.


Monadnock Security takes great pride in providing our customers with the highest level of customer service. Because of this, we have customer and technical support standing by 24/7 to answer any questions you may have giving you the ability to get solutions at your convenience.
Scheduling service calls for new equipment, inspections, or troubleshooting a device is done hassle-free by giving us a call at our office, emailing us, or by sending your request using the Contact Us feature here.
Our sales team specializes in providing our customers with options and solutions for any application. To request a free quote or to make an appointment for a site visit, simply give us a call and we’ll provide you with the solutions you need.