The Diversified Difference
Built on Relationships. Driven by Trust
Unlike large national providers, we treat every client like family. You are never an account number. We’re large enough to design the most sophisticated systems, yet small enough to know you by name.
A message from Marc Buzin
CEO and President
Trusted. Personal. Proven.
For more than 40 years, Diversified Security has been designing and supporting customized security solutions for luxury residences, executive homes, estates, businesses, and commercial facilities throughout New Jersey.
Whether protecting a family home, corporate headquarters, healthcare facility, educational campus, or commercial property, we believe every client deserves a solution tailored to their unique security requirements—not a one-size-fits-all system.
Our integrated solutions combine the latest technology in:
- Intrusion Detection
- Video Surveillance
- Access Control
- Fire Protection
- Smart Home & Building Automation
- 24/7 Professional Monitoring
What Makes Us Different
While technology continues to evolve, one thing never changes—our commitment to providing every client with exceptional personal service.
Unlike large national providers, you're never just an account number. Our clients work with familiar professionals who understand their property, their preferences, and their expectations. When service is needed, you're supported by a team that knows your system and takes pride in building long-term relationships.
Our commitment extends well beyond installation day. Through proactive maintenance, regular system evaluations, and 24/7/365 support, we help ensure your security investment continues performing at its highest level.
Every system we install is backed by professional monitoring through state-of-the-art monitoring centers featuring multiple layers of redundancy, advanced communications infrastructure, and highly trained operators standing watch around the clock.
Leadership You Can Trust
Owner Marc Buzin has built Diversified Security on a simple philosophy: exceptional service never goes out of style.
He remains personally involved with clients, accessible by phone, and committed to ensuring every project receives the attention it deserves. It's a level of accountability that's increasingly rare in today's world.
Large Enough. Small Enough.
We're large enough to design, install, and support sophisticated security solutions for luxury homes and complex commercial facilities—yet small enough to know our clients by name and provide the personalized service they deserve.
More Than Security. Peace of Mind.
For us, security isn't simply about technology.
It's about protecting what matters most, building lasting relationships, and earning our clients' trust every day.
Why Our Clients Choose Diversified
Anyone can install a security system. What truly sets a company apart is the service, commitment, and trust you experience long after the installation is complete.
Real People. Real Support.
Behind every security system is something even more important—real people who care about your safety. We combine advanced technology with responsive service, personal attention, and knowledgeable professionals who are always there.
Local and Always Responsive
Serving communities throughout NJ, our local technicians provide fast response times and personalized service. Enjoy peace of mind that comes from working with professionals who know both your area and the systems they install.
Trusted and Certified Platforms
We partner with leading technology providers, including Alarm.com, Rapid Response Monitoring, Qolsys, Honeywell, Alula, and other certified manufacturers to deliver reliable, scalable security for the unique needs of homes and businesses.
Commercial Fire Expertise
From system design and installation to NFPA inspections, testing, maintenance, and regulatory compliance, we provide complete commercial fire and life safety solutions that help protect your people, property, and business while meeting the latest code requirements.
Custom Security Solutions
No two homes or businesses are exactly alike. That's why we take the time to understand your property, your lifestyle priorities, and your budget before designing a security solution tailored specifically to your needs. We do not provide a one-size-fits-all package.
Full Diversified Support 24/7
Our commitment doesn't end when your system is installed. From preventive maintenance and software updates to troubleshooting, system enhancements, and responsive service, we're here to help ensure your security system continues performing at its best.
Comprehensive Security Solutions
From luxury residences to commercial facilities, Diversified Security delivers customized solutions designed to protect what matters most.
Our experienced team provides:
- Custom security system design and professional installation
- Commercial fire alarm and life safety systems
- 24/7/365 live-answer monitoring and customer support
- Video surveillance and smart camera integration
- Security system upgrades, takeovers, and troubleshooting
- Responsive service and support throughout New Jersey
- Central vacuum system sales, installation, and service
When you call Diversified Security, you'll always speak with a real person—not an automated system. Day or night, our team is here to provide the responsive, personalized service our clients have trusted since 1983.
Serving All of New Jersey
We proudly provide home security alarm services statewide, including:
- Warren
- Essex
- Passaic
- Somerset
- Hunterdon
- Monmouth
- Morris
- Union
- Bergen
- Hudson
- Middlesex
- Ocean
And surrounding areas .
Ready to Protect What Matters Most?
Whether you are securing your home, upgrading your business, or planning a new project, Diversified Security is here to help.