
Over the years, Guardian National Security has provided trusted guards to protect and secure properties across the San Gabriel Valley and Los Angeles County. In addition, our security guard services have supported gated communities, private parking lots, retail stores, hospitals, grocery stores, theatres, fitness centers, hotels, and high-rise office buildings. We’ve also safeguarded restaurants, private events, festivals, construction sites, warehouses, and more.
While on duty, our guards not only patrol and monitor each property but also handle many other important post responsibilities, including:
Effective, Professional & Affordable
Our services include mobile vehicle patrol, foot patrol, bike patrol, private parking enforcement, retail security, logistics, and standing guards.

In addition, we specialize in developing security strategies that effectively reduce theft, vandalism, trespassing, employee pilferage, and other criminal activity in retail stores, malls, and shopping centers. »

Whether you need nightly lock-up and alarm services, parking lot patrols, or temporary fire watch coverage, we also have the skills and expertise to deliver a cost-effective security solution that meets your priorities.»

Our highly trained and licensed guards can be trusted to keep valuable machinery and equipment secure while also protecting against vandalism, graffiti, trespassing, and other unwanted activity.»

Guardian National Security is fully prepared to provide a wide range of transportation and logistical security duties for your trucking company, loading dock, or rail yard.»

We’re proud to provide unparalleled security guard services for homeowner associations, gated communities, apartment complexes, condominiums, and neighborhoods of all sizes.



We’re proud to provide unparalleled security guard services for homeowner associations, gated communities, apartment complexes, condominiums, and communities of all sizes.
At Guardian National Security, we are committed to providing individually-tailored security plans to every customer at an affordable cost. In order to best serve the unique needs of our clients, we have developed an efficient multi-step process for designing, implementing, and monitoring custom security plans.

We will thoroughly discuss your security needs and concerns in order to understand your property.

We guarantee to match or beat any competitor’s quote for the same services.

One of our security advisors will complete a thorough on-site walk-through at your location.

We will delineate patrol routes, schedules & post orders based on your specific needs.

You can expect your assigned guards to arrive on-time, in uniform, and ready to work.

We provide clients with daily activity reports, incident reports, and parking violation warnings.

We will thoroughly discuss your security needs and concerns in order to understand your property.

We guarantee to match or beat any competitor’s quote for the same services.

One of our security advisors will complete a thorough on-site walk-through at your location.

We will delineate patrol routes, schedules & post orders based on your specific needs.

You can expect your assigned guards to arrive on-time, in uniform, and ready to work.

We provide clients with daily activity reports, incident reports, and parking violation warnings.







Expertly-Trained, BSIS-Licensed Security Guards

Exceptional Customer Service Available

We Match or Beat Any Competitor’s Quote
Guardian National Security is committed to providing reliable, quality protection services to a variety of industries through custom-designed security strategies, expertly trained security guards, and excellent customer service.
“
Guardian National Security Services gave me so much peace of mind. They were able to secure my office building efficiently and professionally.

SAL A.
Via Google
Security Guard Services in Alhambra from Guardian National Security are staffed by fully licensed guards who meet all BSIS requirements and hold active guard cards. In addition, every guard passes our detailed screening process, which includes management interviews, drug testing, and reference checks. Once hired, our team members complete ongoing training to maintain top performance. As a result, each guard continues to meet our strict standards for professionalism, reliability, and commitment to client safety.
Call the licensed and insured team at Guardian National Security today for trusted Security Guard Services in Alhambra, La Crescenta, and Monterey Park. In addition, we provide custom security plans designed to fit your exact needs.

Guardian National Security | Monterey Park, Alhambra, & La Crescenta, California
Zip Codes: 90640, 91020, 91214, 91754, 91756, 91776, 91801, 91802, 91896, 91899
Area code: (213, 626, 661, 818)