60+ Years of

san bernardino county's best private security company

Experts in Creating Personalized Security Plans for Optimal Effectiveness & Cost Efficiency

At Guardian National Security, we customize each of our security services to each of our Fontana, Bloomington, and Crestmore Heights clients’ needs. The development of a personalized security plan is key to getting the most out of your investment and significantly improving the safety and security at your site. To achieve the best results, we conduct a thorough on-site assessment where we learn of your security concerns, property/assets, threats, and budget constraints. We also provide you with a detailed proposal for your consideration and an upfront, competitive quote. If the proposal is accepted, we proceed with assigning and training a security guard who will best meet your needs. Your security guard will arrive on time, appropriately uniformed, and fully briefed on your assignment. Throughout the assignment, your security guard will keep daily activity logs and incident reports. Additionally, our management team will supervise your guard(s) closely and regularly check-in with you to ensure your complete satisfaction.

Professional &

Security Guard Services


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 patrol, or temporary fire watch services, we have the skills and expertise to provide a cost-effective security solution to meet your priorities. »


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


Guardian National Security is thoroughly 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 communities of all sizes.


Our Process

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.

Free Consultation


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

Proposal & Quotes


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

On-Site Follow Up


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

Customized Security & Patrol Plans


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

Guards to Arrive On-Time, In Uniform & Ready to Work


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

Daily Activity Reports, Incident Reports & Parking Violation Warnings


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

Protecting California's Most Recognized Brands

Brookstone Logo Burger King Logo Kohl’s Logo Southern California Edison (SCE) Logo Starbucks Coffee Logo Bank Of America Logo


Guardian National Security

Trained, BSIS-Licensed Security Guards


Expertly-Trained, BSIS-Licensed Security Guards

Superior Customer Care


Exceptional Customer Service Available 24/7

Competitive Pricing


We Match or Beat Any Competitor’s Quote

Complete Range of Security Guard Services

Standing Security Guards in Fontana, Bloomington, and Surrounding Areas

Uniformed Guards Trained to Monitor, Secure & Report a Wide Range of Properties in Fontana, Bloomington, and Crestmore Heights

Ideal for:

  • Events
  • Retailers
  • Parking garages and lots
  • Financial institutions
  • Hospitals/medical facilities
  • Construction sites
  • Reception areas
  • Performance venues
  • Hotels and motels
  • Businesses

This service features:

  • Guards trained in:
    • Power to arrest
    • Observation and documentation
    • Communications
    • Public relations
    • Emergency situations/evacuation procedures
    • Handling difficult people
    • Access control
    • Company policies
  • 24-hour availability
  • Four guard appearances to choose from:
    • Standard guard
    • Professional
    • Casual
    • Construction

Mobile Patrol in Fontana, Bloomington & Crestmore Heights, CA

Security Patrols by Vehicle, Golf Cart, Bike or Foot

Ideal for any Fontana, Bloomington, and Crestmore Heights property that extends over a large area, such as:

  • Parking lots
  • College campuses
  • Warehouses
  • Storage facilities
  • Business parks
  • Gated neighborhoods
  • Malls
  • Construction sites
  • Retirement centers
  • Rail yards

This service features:

  • Licensed, bonded and insured uniformed guards
  • Well marked vehicles, golf carts, or bikes
  • Wireless motion detectors at no additional cost
  • Patrol routes monitored by Detex and wireless time clocks
  • Access to our local dispatch 24 hours a day

Lock Up & Unlock Services in Fontana, Bloomington, and Crestmore Heights, CA – Packaged with Vehicle Patrol

Have a dedicated and trained security guard secure, lock up and set your alarm and/or open your facility

Ideal for:

  • Business offices
  • Construction sites
  • Retail stores
  • Shopping malls
  • Storage facilities
  • Industrial facilities
  • Warehouses
  • Equipment yards
  • Banks and other financial institutions

This service features:

  • Comprehensive, custom security strategies
  • Competitive rates
  • Trustworthy, reliable and punctual security guards
  • Thorough inspection of all access points upon arrival

Alarm Monitoring & Response in Fontana, Bloomington, and Surrounding Areas – Packaged with Vehicle Patrol

Affordable Alarm Monitoring for Residential and Commercial Clients in Fontana, Bloomington, and Crestmore Heights

Ideal for:

  • Office buildings
  • Parking structures
  • Retirement communities
  • Gate neighborhoods
  • Construction sites
  • Retail stores
  • Shopping centers
  • Parking structures
  • Industrial facilities

This service features:

  • 24-hour monitoring of any existing alarm system
  • Prompt dispatch of vehicle patrols
  • Triggered alarms investigated by licensed, trained guards
  • Guards equipped with two-way radios to call in the police or fire departments for verified alarms

Fire Watch Services in Fontana, Bloomington & Crestmore Heights, CA

Trained Fire Watch Guards Meet California’s Fire Codes & CAL/OSHA Requirements

Ideal for:

  • Restaurant
  • Hotels
  • Hospitals
  • Offices
  • Special events
  • Concert venues
  • Retail stores
  • Industrial facilities
  • Retirement facilities
  • Schools
  • Universities

This service features:

  • A safe way to keep your business open if your fire or sprinkler system is not functioning
  • BSIS-certified guards who will:
    • Patrol the affected area
    • Watch for early signs of fire or hazardous materials
    • Keep detailed logs for your records
    • Immediately contact the fire department in the event of a fire
    • Assist in implementing evacuation procedures
  • Use a fire extinguisher when necessary
  • Guards equipped with cell phones and two-way radios to call the fire department
  • 24-hour dispatch
Logistics Security for Fontana, Bloomington & Crestmore Heights Transportation, Supply Chain & Distribution Companies

This service can include:

  • Standing or mobile patrols
  • Truck inspections
  • Shipment inventory management
  • Timekeeping
  • Dock designation
  • Materials, equipment and vehicle tracking
  • Assist with Cal/OSHA audit requirement fulfillment
Event Security Guards for Public and Private Events In Fontana, Bloomington, and Crestmore Heights, CA
Ideal for:
  • Concerts
  • Private dinners
  • Special events
  • Fundraisers
  • Performances
  • Sporting events
  • Award ceremonies
  • Festivals
  • Auctions
  • Community events

This service can include:

  • Standing security guards or mobile patrols
  • 24-hour emergency response
  • Around-the-clock surveillance
  • Security escorts
  • Parking lot control and security
  • Lost children assistance
  • Evacuation planning
  • Investigation of suspicious activities
  • Taking tickets
  • ID verification
  • Bag and belonging searches

Wireless Security Equipment Installation, Packaged with Standing Security Guard

Wireless Security Alarm, Video Camera and Motion Detector Rentals and Installation for Fontana, Bloomington, and Crestmore Heights, CA

Ideal for:

  • Gated neighborhoods
  • Offices
  • Retail locations
  • Parking lots and structures
  • Construction site
  • Schools
  • Banks and other financial institutions
  • Warehouses
  • Storage facilities
  • Loading docks

This service can feature:

  • Consultations to determine the best type and placement of security equipment for your needs
  • IP-based video equipment for remote monitoring
  • 24-hour alarm monitoring and response
  • Short-term or long-term rentals
  • Fast and reliable installations by a C-7 licensed contractor

All of Guardian National Security’s services are fully customizable and can be employed as a standalone service or combined to meet any specific security need in Fontana, Bloomington, and Crestmore Heights. Call today for a fast, free quote.

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

we will match or beat any competitor's price

Get Your Free Security Consultation and Quote

Call today for your free consultation and quote. We are fully licensed, insured and bonded. We also have an A+ rating from the Better Business Bureau and are active members of CALSAGA, the California Bureau of Security and Investigative Services. In addition to being a leading, highly qualified private patrol operator serving the Fontana, Bloomington, and Crestmore Heights area, we are also a licensed C7 contractor. C7 contractors are qualified to install all types of low voltage security surveillance equipment, such as closed circuit video cameras, alarms and motion detectors.

Custom-Made, Personalized Security Plan

Guardian National Security Bloomington, Crestmore Heights, Fontana – 92316, 92335, 92336, 92337, 92509, California (CA)
Area code (909, 951)