What are the opening hours?

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

One Source Security, 674 Daniel Webster Highway, Merrimack, NH (2026)

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.

06/25/2026

🎓 Congratulations to Ron Wiegand of One Source Security, Merrimack on graduating from the DULOP Leadership Program.
For Ron, leadership is all about people, creating opportunities for others to grow, building strong teams, and leading with fairness and respect. Whether at work, with family, or coaching youth sports in his community, he leads by investing in others and helping them succeed.
We are proud to celebrate this important milestone and his continued commitment to growing as a leader. Well Done! 👏

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/

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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