
Guardian National Security excels in providing high-quality, competitively priced security guard services for clients in Rancho Cucamonga, Montclair, and San Antonio Heights. Countless commercial clients throughout San Bernardino County rely on our security experts to increase safety and reduce criminal and unwanted activity on their properties through our carefully developed security strategies. We specialize in designing innovative and cost-effective security plans to meet the diverse and unique needs of our Rancho Cucamonga, Montclair, and San Antonio Heights customers, and having highly qualified security guards implement them. It is no wonder that businesses throughout San Bernardino County are choosing to make Guardian National Security their private security firm of choice. We maintain an A+ rating from the BBB (Better Business Bureau) and have developed a reputation for exceptional service at a fair price.
Guardian National Security is a licensed private patrol operator and C-7 low voltage systems contractor. This means that we are qualified to provide all of the following services:
These services are ideal for a wide range of Rancho Cucamonga, Montclair, and San Antonio Heights companies, particularly those in hospitality, property management, manufacturing, TV and film, construction, retail, health, education, banking, transportation, and various other industries. Contact us today to receive your free consultation and quote for private security services in Rancho Cucamonga, Montclair, San Antonio Heights, or other nearby city.
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
One of the most effective and cost-efficient guard services we offer is our mobile guard service. Mobile guard services refer to having one of our security guards regularly patrol your Rancho Cucamonga, Montclair, or San Antonio Heights property, either on a short-term or long-term basis. Patrols can be performed on foot, by bike, or in a golf cart or car, depending upon the terrain, the areas that are most susceptible to criminal behavior or other potential threats, and the size of your property. However, if our clients wish to make their security guards more approachable, we recommend that our guards conduct their patrols on foot or by bike. Call today to speak with one of our security experts. You’ll receive professional advice on how to get the most out of mobile security patrols for your Rancho Cucamonga, Montclair, or San Antonio Heights site.
Our standing security guard service, available to any business in the Rancho Cucamonga, Montclair, and San Antonio Heights, involves having one or more of our trained and licensed security personnel stationed at a specified location to provide a visible security presence, identify and look into suspicious persons or circumstances, observe and document various activities, respond to emergencies or incidents, handle confrontations, and serve as a resource to staff and visitors. Our guards are also available to help with a number of related duties, such as issuing visitor badges, distributing validation stickers, searching bags and belongings, keeping visitor and activity logs, and providing helpful customer service. The precise post orders assigned to your standing security guard will be dependent upon your needs and preferences. Call today to speak with one of our security experts.
Wireless security equipment can be all that is required to drastically improve security at your Rancho Cucamonga, Montclair, or San Antonio Heights site, however at Guardian National Security, we believe it’s most effective when paired with standing security guard or mobile patrol services. That’s why our wireless security equipment installations come packaged with guards for increased crime prevention. As a licensed C7 contractor, we excel in the installation, placement and surveillance of security alarms, motion detectors, CCTV systems and video cameras. Call us today to obtain a free quote on our wireless security equipment available for short-term or long-term rentals in Rancho Cucamonga, Montclair, and San Antonio Heights. Our prices aren’t just affordable, they’re unbeatable.
Rely on Guardian National Security for 24-hour monitoring of your security alarm systems. We have the resources and capabilities to respond promptly and thoroughly investigate any alarms that are triggered on your Rancho Cucamonga, Montclair, or San Antonio Heights property. We have a local dispatch center and BSIS-licensed guards who are readily available 24 hours a day, 7 days a week. Packaged with our alarm response is vehicle patrol service, hence anytime your alarm is triggered, we will send a uniformed security guard to determine the cause of the alarm and assess whether the police or other local authorities need to be called. With every visit, our guard will provide a detailed incident report and ensure that your premises are secure before resetting your alarm and departing. Call today for San Bernardino County’s best value in security alarm monitoring and response.
Our logical services help companies that manage large supply chains and transportation logistics in Rancho Cucamonga, Montclair, and San Antonio Heights obtain the specialized assistance they need to significantly reduce their shrinkage and opportunities for theft while making your company safer and more productive. Our logistical security services are performed by our trustworthy guards who are not only certified by the BSIS, but also specifically trained in tasks that are relevant to those who manage transportation and supply chain logistics, such as timekeeping, material tracking, truck inspections, shipping inventory management, docking designations, and Cal/OSHA audit fulfillment. Call today for a free price quote and consultation.
If at any time your fire alarm or sprinkler system goes down or is under maintenance, you can call Guardian National Security to provide you with affordable and dependable fire watch services. Our fire watch services are designed to comply with California’s Fire Code and customized to meet the specific needs of your site. As part of your fire watch and safety plan, we will determine route patrols, thoroughly brief and prepare your assigned guard, and ensure that our guard is equipped with two-way radios and a cell phone. Our guard will diligently tour the affected areas of your building and keep a close watch for early warning signs of fire or other dangerous situations. In the case of an emergency, you can trust that our guard will be ready to use a fire extinguisher, contact the fire department, and begin emergency evaluation procedures. Call today to learn more.
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
Call today for a free quote. We will match or beat any competitor’s quote!

Guardian National Security | Rancho Cucamonga, California
Zip Codes: 91701, 91729, 91730, 91737, 91739, 91762, 91763, 91784
Area Codes: (909 , 840)