Low Voltage and Fire Security Solutions Built for the Future of Salinas, CA

Trusted by Institutions, Built to Protect What Matters Most

For over 70 years, Johnson Electronics has quietly helped shape safer communities throughout California’s Central Coast. From local schools and universities to city buildings and military installations, our work supports the systems that keep society connected, protected, and running smoothly.

Headquartered in Salinas, CA, we are the region’s leading low-voltage contractor, serving Monterey, Santa Cruz, San Benito, and Santa Clara Counties with tailored solutions. Whether you're building from the ground up or upgrading critical infrastructure, our certified technicians bring deep experience and a detail-driven approach to every project.

Comprehensive Fire Security Systems for Commercial Properties

A reliable fire alarm system isn't just a legal requirement—it's a life-saving necessity. At Johnson Electronics, we design and install advanced commercial fire alarm systems that comply with local codes and national standards. Every solution is engineered with precision and backed by decades of real-world performance.

From office complexes to public schools, we ensure your facility is prepared to respond swiftly and safely in the event of an emergency.

Scalable Surveillance Through Commercial CCTV Systems

Clear, dependable video surveillance is a critical layer of any security plan. Our CCTV systems are built for performance and flexibility, whether you're managing one building or multiple facilities across several counties.



With our custom-designed systems, you can monitor entrances, track movement, and respond to incidents in real-time—all from a centralized platform.

Our surveillance technology is trusted by public institutions, corporate offices, and large-scale industrial operations.

Advanced Access Control That Works the Way You Do

Access control has moved far beyond keys and locks. Johnson Electronics offers state-of-the-art systems that give you full command over who enters your property and when. From a single entry point to an enterprise-wide deployment, we create access solutions that are efficient, secure, and scalable.

Every system is tailored to meet your operational needs while enhancing your overall building security strategy.

Low Voltage Contracting Services That Power Modern Infrastructure

Low-voltage systems are the unsung heroes behind reliable communication, safety, and automation. Our team designs and installs comprehensive low-voltage networks for commercial buildings of every size and type.

From structured cabling to emergency response systems, we ensure every component is installed with care, tested thoroughly, and backed by expert support.

Our team collaborates with architects, general contractors, IT directors, and facility managers to deliver complete solutions—on time and within scope.

Serving Salinas and Beyond With Pride

We are proud to serve clients across Salinas, Monterey, Santa Cruz, San Benito, and San Jose, supporting projects for:

No matter the size or scope of your project, you can expect clear communication, expert craftsmanship, and systems that stand the test of time.