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Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm

One Source Security

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United States
Merrimack, NH
One Source Security

Security Systems, CCTV, Alarm monitoring, Access Control, Locksmith, Free Assessments.

One Source Security & Automation offers decades of experience with installation and service of burglar & fire alarms (including remote arm/disarm), monitoring, video surveillance (including megapixel technology and remote viewing), access control featuring biometric and Smart Card technologies, carbon monoxide detection, environmental alarm monitoring and complete locksmith services.

03/10/2026

At One Source Security, a member of the DU Family of Companies, we’re excited to share that the Learning & Development team is expanding its offerings to help our teams grow stronger and work smarter.

A new Process Improvement course is launching soon in DULOP (Davis-Ulmer Leading Others Program) Cohort 3—and will later be available as a standalone offering to all team members.

We look forward to continuing to develop programs that strengthen skills, build connections, and support excellence in our field.

Learn more about our services and career opportunities: https://www.onesourcesecurity.com/

02/26/2026

We’re Hiring — and Veterans, We Appreciate You

At One Source Security, a member of the DU Family of Companies, veterans have been a core part of our team for years. Your leadership, discipline, problem-solving, and commitment to mission are qualities we value — and invest in.

We offer:
• Hands-on training and career development
• Opportunities to earn certifications (including NICET)
• Apprenticeship paths for technical roles
• A supportive culture built on teamwork and purpose
• Locations across the Eastern U.S. for flexibility and stability

We’re proud to support veterans transitioning into civilian careers — including through the Career Skills Program (CSP) for Active-Duty Army Soldiers.

If you’re ready for your next chapter, we’d be honored to have you as part of the DU Family.

Explore open roles and apply today. https://www.davisulmer.com/veteran-careers/

02/10/2026

Education and collaboration are critical to keeping our communities safe, and not just in the security realm.

As a member of the DU Family of Companies, One Source Security has access to a mobile training trailer to support AHJs with hands-on, in-person education focused on real-world life safety systems.

Led by Tobin Wolf, PIE-certified instructor, these sessions can award up to 4 CEU credits and cover:• Fire Extinguishers• Fire Alarm Systems• Water-Based Fire Protection Systems

Our priority is shared knowledge, consistent standards, and stronger partnerships that support safer buildings and safer communities.

If you’re interested in hosting a training session for your department or jurisdiction, please reach out to Tobin Wolf ([email protected]) to schedule.

01/22/2026

At One Source Security, a member of the DU Family of Companies, we choose our partners carefully because our clients deserve the best. That is why we work with trusted industry leaders like Brivo and Eagle Eye Networks.

Their merger brings added value to our customers through a more unified, cloud-native security platform—simpler management, integrated access control and video, and streamlined support under one solution. Most importantly, it means stronger, more scalable security systems backed by vendors who are aligned and built for the future.

Full article; https://www.securitysystemsnews.com/article/brivo-and-eagle-eye-networks-merge-to-create-global-cloud-native-security-company

This is a win for our clients and an exciting step forward in modern physical security. For information regarding our security services, visit: https://www.onesourcesecurity.com/

12/01/2025

Full-time security guards are expensive — and traditional remote monitoring can come with unpredictable per-event fees.

Modern video monitoring solves that. AI filters out common false alarms before they reach a human operator, giving you fewer interruptions, faster response, and predictable flat-rate pricing.

If you want smarter, more reliable security without surprise costs, our branch team can help you find the right solution for your facility. Send us a message to get started. https://www.onesourcesecurity.com/

11/26/2025

At One Source, a member of the DU Family of Companies, we’re not just protecting what matters most — we’re building a team in a growing field that feels more like family.

Whether you’re a seasoned pro or just starting out, we’ve got a variety of positions across fire protection and security within our Family.

Why join us? Great benefits, career growth, and a culture that’s all about supporting each other.

See all our openings: https://www.davisulmer.com/work-with-us/

11/12/2025

At One Source, part of the DU Family of Companies, we believe leadership isn’t just about a title—it’s something anyone can grow into.

Through programs like DULOP (Davis-Ulmer Leading Others Program) and leadership courses like Situational Leadership, our team members build skills, confidence, and connections that last.

When our people grow, our company grows stronger. 💪

Learn more about what we do and explore career opportunities: https://www.onesourcesecurity.com/

10/22/2025

Brivo is one of the top vendors we partner with to deliver best-in-class security solutions. Their latest feature in International Security Buyer Magazine highlights why interoperability isn’t just nice to have—it’s essential for future-proof, connected security systems.

Do you see interoperability as the biggest opportunity or the biggest challenge in the next phase of physical security innovation?

Read more here:
https://hubs.li/Q03F_Zrp0

10/06/2025

Retail crime isn’t just about shoplifting anymore—it’s become more complex, stretching from the sales floor to supply chains and even digital platforms.

That’s why many retailers are moving from siloed security systems to unified platforms that connect video, access control, and business tools. The result? Better visibility, faster response times, and smarter decisions across every location. See article in comments for more information and stats about retail crime.

At One Source Security, we help businesses design and integrate the right security solutions to protect people, assets, and operations—without adding complexity.

We can help: https://www.onesourcesecurity.com/

10/02/2025

Ready to make an impact and have a blast doing it? At One Source, a member of the DU Family of Companies, we’re not just protecting what matters most — we’re building a team that feels more like family.

Whether you’re a seasoned pro or just starting out, we’d love to learn more about you.

Why join the DU Family of Companies? Great benefits, career growth, and a culture that’s all about supporting each other — plus, a little fun never hurts!

Think you’re the missing piece? See all our openings: https://www.davisulmer.com/careers/

09/18/2025

Our goal is simple: keep you safe, protected, and at peace.

Enjoy this beautiful shot from the White Mountain Regions in Northern NH.

How can we help you? https://www.onesourcesecurity.com/

Address

674 Daniel Webster Highway
Merrimack, NH
03054

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm

Website

http://www.onesourcesecurity.com/

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