Intrusion Alarm Systems | Commercial Security Since 1985

Commercial Intrusion Alarm Systems in New Hampshire

Arcomm Communications has been protecting New Hampshire businesses with commercial-grade intrusion alarm systems since 1985. From motion sensors and door contacts to glass-break detectors and 24/7 central station monitoring, we build security systems that deter intruders, detect breaches, and dispatch help — not false alarms that make your staff ignore the siren.

A commercial alarm system needs to do more than make noise. It needs to detect real threats reliably, communicate with a monitoring station that dispatches police, and integrate with your cameras and access control so you have a complete picture of every security event. We design systems that work together — motion sensors that trigger camera recording, alarms that send verified video to the central station, and access control events that log alongside intrusion alerts.

Dual-Tech Sensors: Eliminating False Alarms at the Source

False alarms are the number-one reason businesses lose confidence in their alarm system. When the siren goes off for the fifth time this month because a sensor picked up an HVAC draft, your staff stops paying attention — and that is exactly when a real break-in goes unnoticed. We solve this problem with dual-technology motion sensors that require both passive infrared and microwave detection to trigger. If only one technology detects motion, the sensor holds. Only when both confirm movement does the alarm activate. The result: near-zero false alarms.

We also configure zone types, entry/exit delays, and sensitivity settings for each sensor based on its location and the environment it operates in. A warehouse sensor needs different tuning than a lobby sensor. An exterior door contact needs different timing than an interior motion zone. Our technicians walk your facility and set every parameter correctly.

Our Alarm System Installation Process

1. Site Walk

We visit your facility to assess the physical environment, identify entry points and vulnerable zones, evaluate existing wiring infrastructure, and understand your operational schedule. This assessment ensures we place sensors where they matter and configure the system for your specific building.

2. Design and Scope

Our team creates a detailed alarm design with sensor placement, zone definitions, cabling paths, and monitoring plan — all in a fixed-price proposal. You see every sensor, keypad, and monthly monitoring cost before we start.

3. Install and Configure

Our NH-based technicians install every sensor, keypad, and communicator. We program zones, configure entry/exit delays, set up mobile app access, and connect the panel to our UL-listed central station. We integrate your alarm with existing security cameras for video verification.

4. Training and Monitoring

We train your team on arming, disarming, mobile app operation, and what happens when an alarm triggers. Your system connects to our UL-listed central monitoring station for 24/7 protection, with video verification available for priority police dispatch.

Alarm Platforms We Install and Monitor

We install and monitor commercial intrusion alarm systems from the manufacturers that deliver reliable performance in demanding environments. Bosch alarm panels are the workhorse of commercial security — modular, expandable, and proven in thousands of installations. Their Solution and B-Series panels support from 8 to 240 zones, integrated with access control and video for a unified security platform. Alarm.com provides cloud-connected alarm management with a powerful mobile app, smart automation, and video verification — ideal for businesses that want to arm, disarm, monitor, and manage their security from any device.

We also integrate intrusion alarm panels with HID Global credential readers for combined alarm and access control arming stations. See our full list of technology partners.

Video Verification: Priority Police Response in NH

Video verification transforms your alarm system from a notification tool into an evidence-gathering platform. When an intrusion sensor triggers, your security cameras automatically capture video of the affected zone and transmit it to the central station operator. The operator views the clip before calling the dispatch — confirming that a real person is on the property, not a loose balloon or a faulty sensor.

In most New Hampshire jurisdictions, video-verified alarms receive priority police dispatch because the central station can confirm a crime is in progress. This means faster response times and higher arrest rates. For businesses with camera systems already in place, adding video verification to your alarm monitoring is straightforward and cost-effective.

Month-to-Month Monitoring: No Long-Term Contracts

We offer month-to-month alarm monitoring agreements with no long-term lock-in. We believe that if we are not earning your business every month, you should be free to leave. Our monitoring rates are competitive because we own the entire relationship — no third-party dealer markups, no hidden fees, no automatic renewal traps. You get UL-listed central station monitoring, video verification, and mobile app control without committing to a multi-year contract.

Serving New Hampshire Since 1985

Arcomm Communications has been installing, monitoring, and servicing commercial intrusion alarm systems across New Hampshire since 1985. From our headquarters in Hillsborough, we protect businesses in Concord, Manchester, Nashua, Portsmouth, Keene, and every town in between. Our technicians live here, work here, and understand the security challenges that New Hampshire businesses face — from retail break-ins to warehouse intrusion to municipal building protection.

Whether you need a new alarm system, an upgrade to your existing sensors, or a switch to better monitoring, Arcomm delivers a clear proposal, professional installation, and 24/7 support. Call us at (603) 464-4600 or request a security assessment to get started.