Guardian Services, Inc.
Fire Protection   Research and Development   Consulting   Marine and Industrial


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Need access to National Fire Protection Association Standards? 

NFPA  provides free "read only" access to all NFPA standards.  Click on the image below to link to the NFPA website:




Fire Protection News/Highlights 

July 10, 2023 GSI's Tom Wysocki celebrates 50 years of work in research and development seeking better means to save lives and livelihoods from the ravages of uncontrolled fire. GSI congratulates Tom and wishes him continued success in his mission to advance the science and art of fire protection.


May 19, 2023 During the pandemic Guardian Services Inc. and Moskaluk Consulting pioneered remote witness testing for verification of flow tests, hydrostatic tests, repetitive cycle tests, and other performance tests required for UL and FM listing of systems. Working together our companies successfully completed UL and FM testing of several special hazards systems for clients.


Given the success our companies had working together during the pandemic, GSI and Moskaluk Consulting have agreed to continue offering full product line development services to manufacturers of special hazards fire extinguishing systems. Whether your company needs software development and testing, hardware development and testing, or complete project management leading to listing and approval of systems, GSI working with Moskaluk can fill your company's need. Contact us for more information:


GSI personnel take part in NFPA Technical Committee activities to further life and fire safety



Gaseous Fire Suppression Agent Facts

Actual experience with fire extinguishment provides GSI invaluable knowledge which they use as designers, expert witnesses, and advocates for fire safety.

Fire extinguishment by an inert gas


What we provide:

Guardian Services, world leader in special hazards fire protection, celebrates 38 years of service, protecting lives, livelihoods, and property from the effects of unwanted fire.

GSI offers the following services to end users, manufacturers, governmental bodies, approval agencies, and the legal profession:

  • NEW Full product line development including
    •  Hardware development and sourcing
    • Fire testing
    • Verification of flow testing
    • Remote call in and viewing of testing for our customers and approval agencies
  • Development of software for design of fire systems using
    • Halocarbon Clean Agents including HFC-227ea (FM-200™), HFC-23 (FE-13™), HFC-125 (FE-25™), and FK-5-1-12 (Novec1230™)
    • Inert gases such as IG-55 (Argonite™, ProInert™), IG541 (Inergen™) IG-100
    • Carbon dioxide (high and low pressure)
    • Water Mist
    •  Dry Chemical
  • Listing and approval of special hazards system equipment and software    
  • Research and Development 
  • Hazard specific applications 
  • Onsite hazard analysis
  • Arctic environment fire protection
  • System specification, design, and startup
  • Training Courses - in person and online
    • Hazard Recognition
    • System Application and Design
    • System Inspection 
  • Forensic studies
  • Expert witness services



Company Profile

Visit our Useful Links page

Carbon Dioxide ( CO2 ) flow calculation software 


Link to information on 1998 INEEL accident.


GSI celebrates 38th anniversary providing fire protection and expert witness services



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Copyright 2023 Guardian Services, Inc.
Information contained in this publication is furnished free of charge for use by persons at their discretion. Because conditions of use are outside our control, Guardian Services, Inc. makes no warranties, express or implied, and assumes no liability in connection with any use of this information.

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Last revised 8/4/2023