Longmont, Colorado
Commercial Security Systems in Longmont
ESI Technologies serves Longmont businesses from our Fort Collins office and has installed commercial security systems across Northern Colorado since 1984. Local technicians, local dispatch, local accountability. Serving Longmont, Firestone, Berthoud, and the surrounding area.
(970) 999-1681
Longmont’s Local Security Integrator
Longmont’s economy leans technical. Advanced manufacturing, aerospace and optics suppliers, biotech, and a dense small-business core downtown sit alongside the healthcare and commercial-property facilities every city has. Those tech and manufacturing sites raise the bar on security: clean rooms and labs need tight access control, intellectual property drives who gets into which areas, and a facility running expensive equipment cannot afford a system it cannot rely on.
We have worked across Northern Colorado for four decades, and we serve Longmont from our Fort Collins office. That keeps a technician within reach of Longmont, Firestone, and the surrounding area without a dispatch from out of state. We design the system, install it, and service it with our own team.
Security Services in Longmont
ESI provides the full range of commercial security integration for Longmont facilities, and the team that installs a system is the team that maintains it.
- Commercial security system design and installation. Surveillance, intrusion detection, and enterprise VMS for Longmont businesses.
- Access control. Card, mobile, and biometric credentials on Genetec, Gallagher, AMAG, and Salto platforms, with the area-level control that labs, clean rooms, and R&D space require.
- Video surveillance. IP cameras, VMS platforms, and storage from Axis, Avigilon, Hanwha, Genetec, and Milestone, from a single building to a multi-site operation.
- Intrusion detection and alarm systems. Sensors, control panels, and central station monitoring on Bosch, Gallagher, and Napco platforms.
- Fire alarm systems. Design, installation, and NFPA 72 inspection by NICET-certified technicians.
- 24/7 monitoring. UL-listed central station monitoring for Longmont commercial properties.
- Remote guarding. Live operator video monitoring for parking lots, perimeters, and exterior zones.
- Managed security services. Outsourced security management for Longmont businesses.
- Managed Sites. Service contracts for existing security system owners in Northern Colorado.
- Maintenance agreements. Scheduled inspections and priority service for Longmont security systems.
- AV systems. Conference room AV and digital signage installation.
We hold manufacturer authorizations from Genetec, Axis, Gallagher, Avigilon, AMAG, and Salto. Authorization controls warranty coverage, software licensing, and the manufacturer support channel, which means we can program, license, and support these platforms over their full life, not just install the hardware.
Northern Colorado Service Area
ESI serves Longmont from its Fort Collins office, which covers businesses across Northern Colorado, including:
ESI Fort Collins
Serving Longmont and the surrounding area
1600 E Mulberry St, Unit 1
Fort Collins, CO 80524
Monday – Friday: 8am – 5pm
After-hours emergency dispatch available
Southern Colorado?
Our Colorado Springs office serves the southern Front Range.
The Facilities We Secure in Longmont
Longmont is not a single type of building, and each facility type has a different security problem. The city’s business base runs on advanced manufacturing and aerospace or optics suppliers, biotech and laboratory space, and technology and office campuses, where access control has to work at the area level and intellectual property drives who reaches which rooms.
Alongside the tech corridor sit healthcare facilities, downtown retail and commercial property, and municipal buildings. A biotech lab and a downtown storefront have almost nothing in common in what they need from a security system, so we design around the specific facility rather than fitting it to a package. We support manufacturing facilities, healthcare facilities, and municipal and government buildings across the area. For a deeper look at how the pieces fit together, see our guide to commercial access control systems in Colorado.
ESI’s History and Credentials in Northern Colorado
ESI has protected Northern Colorado businesses, institutions, and municipalities for more than 40 years. Our Northern Colorado work includes Larimer County, the City of Fort Collins, the City of Loveland, and the Northern Colorado Regional Airport.
We hold CJIS certification for handling criminal-justice information, relevant to government and law-enforcement-adjacent work, and our team includes a state-licensed Master Electrician. Our fire alarm and low-voltage work is performed by NICET-certified technicians. We are an authorized dealer for Axis, Avigilon, Genetec, Gallagher, Salto, and AMAG, which is not something every integrator can say.
Why a Local Integrator Matters for Service in Longmont
A security system is only as good as the service behind it. When a reader fails on a lab door or a camera drops at a Longmont facility, what matters is how fast someone who knows the system can respond. Our technicians work in Northern Colorado, so a service call is handled by the team that installed the system, not routed to a call center in another state.
That is why so many of our systems move onto a service agreement: the facilities that depend on the system want the same people maintaining it. We offer service agreements with preventive maintenance that replace unpredictable break-fix costs with scheduled service and priority response, and we service systems other integrators installed. Our commercial security system maintenance guide walks through what scheduled service should cover.
Frequently asked questions
Does ESI have an office in Longmont?
ESI serves Longmont from its Fort Collins office, which covers Longmont, Firestone, Berthoud, and the surrounding area. Our technicians are based in Northern Colorado, so service calls are handled locally rather than dispatched from out of state. Call (970) 999-1681 to reach the Fort Collins team.
Can ESI handle access control for a lab or clean-room facility in Longmont?
Yes. Access control for labs, clean rooms, and R&D space is a core part of ESI’s work, using area-level permissions to control who reaches which parts of a facility. ESI designs the access plan around the facility’s zones and integrates it with video and intrusion for a coordinated system.
Can ESI service a security system another company installed in Longmont?
Yes. ESI takes over service on systems installed by other integrators, including access control, camera, and alarm systems. We assess the existing system, tell you what is worth keeping, and offer a service agreement to maintain it going forward.
How quickly can ESI respond to a service call in Longmont?
Response depends on the issue and whether the facility is on a service agreement, which carries priority response. Because ESI’s technicians are based in Northern Colorado, a Longmont service call does not wait on a dispatch from another state. Call (970) 999-1681 to discuss coverage.
Longmont Businesses Trust ESI
Start with a free site walk from our Fort Collins team. We will walk your facility, identify coverage gaps, and design a security system built for your requirements. You can also call the office at (970) 999-1681.
Last updated: July 2026