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Business Details
50+ Years
experience
Emergency
services
Trusted Fire Protection Services Nationwide
The Hiller Companies has been a leader in fire protection and life safety solutions for over a century. Founded in 1919, we specialize in designing, installing, and maintaining fire protection systems for commercial, industrial, and special hazard applications. Our NICET-certified technicians and registered fire protection engineers deliver customized solutions, including fire sprinkler systems, alarm monitoring, suppression systems, and compliance management. With a presence in 44 locations across the U.S. and global projects, we combine cutting-edge technology with hands-on service to safeguard lives and property. Our commitment to innovation is matched by our dedication to corporate responsibility, ensuring safety, environmental stewardship, and community engagement.

We serve diverse industries, from healthcare and energy to marine and defense, with 24/7 emergency response capabilities. Backed by certifications from NICET and AWWA, our team provides UL alarm monitoring, backflow testing, and compliance training to meet rigorous regulatory standards. For over 100 years, we have prioritized customer needs while maintaining a culture of inclusion and continuous improvement. Our partnerships with industry leaders and focus on education ensure we remain at the forefront of fire safety technology and best practices.
Services
Fire Sprinkler Inspection Fire Alarm Systems Backflow Testing Fire Extinguishers Mass Notification Systems Detection Systems Suppression Systems Compliance Training Emergency Response CFD Fire Modeling
Details
  • Year established: 1919
Highlights and features
  • We offer 100+ years of experience in fire protection and life safety solutions.
  • Our team includes NICET-certified technicians and registered fire protection engineers.
  • We provide 24/7 emergency response services across 44 U.S. locations.
  • Our UL-certified alarm monitoring ensures continuous protection for commercial facilities.
  • We maintain compliance with NFPA standards and local codes through rigorous training.
Associations and certifications
  • National Institute for Certification in Engineering Technologies (NICET)
  • American Water Works Association (AWWA)
What people say
Impressive professionalism 24/7 emergency response High standards Trusted partner Compliance expertise
Services
Fire Sprinkler Inspection
Our fire sprinkler inspection service ensures compliance with NFPA 25 standards through thorough testing and maintenance. Trained technicians identify system deficiencies and perform repairs to maintain optimal functionality. Regular inspections minimize fire risk and ensure system reliability for commercial and industrial facilities.
Fire Alarm Systems
We design, install, and monitor fire alarm systems that meet NFPA 72 requirements. Our UL-certified monitoring provides real-time alerts and 24/7 system oversight. Custom solutions include addressable systems, mass notification integration, and emergency lighting testing for commercial and industrial applications.
Backflow Testing
Hiller's AWWA-certified technicians perform backflow testing and prevention services for fire protection systems. We test, repair, and install backflow prevention assemblies to protect potable water supplies. Services include annual compliance testing, anti-theft enclosures, and freeze protection for commercial and industrial facilities.
Mass Notification Systems
Our mass notification systems provide real-time emergency communication through audio, visual, and digital channels. Designed to meet DoD standards, these systems integrate with fire alarms to deliver critical instructions during threats like fires, chemical spills, or natural disasters for universities, industrial sites, and municipalities.
Fire Suppression Systems
We engineer specialized suppression systems for high-risk environments, including clean agent, CO2, and foam systems. Solutions protect data centers, aircraft hangars, and industrial facilities while meeting NFPA 12 and 2001 standards. Our team provides installation, testing, and maintenance for reliable hazard mitigation.
Questions
What fire protection services does Hiller offer?
Hiller provides fire sprinkler inspections, alarm systems, suppression systems, backflow testing, and 24/7 emergency response services for commercial and industrial clients.
Are Hiller's technicians certified?
Yes, our team includes NICET-certified technicians and AWWA-certified professionals trained in fire protection standards and compliance.
Does Hiller provide emergency services?
Yes, we offer 24/7 emergency response for fire protection issues across our 44 U.S. locations.
How does Hiller ensure compliance?
We follow NFPA standards and local codes, providing documentation, training, and system maintenance to meet regulatory requirements.
What areas does Hiller serve?
Hiller operates in 44 U.S. locations across Alabama, Arizona, California, Florida, Louisiana, Texas, and 15+ other states.
Can Hiller handle special hazard projects?
Yes, we specialize in complex projects like data centers, nuclear facilities, and marine applications using CFD fire modeling and custom suppression systems.
Reviews (5)
Michael Brown
Nov 08, 2021 Report
Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Arianna M. has been absolutely the BEST! Anytime we've had an issue, she's ensured that we were provided timely and professional service. The technicians are also knowledgeable and personable! So grateful to have them as a vendor!
Jesse Ecker
Nov 05, 2021 Report
I had two retail projects where plans generated by the design professionals indicated fire alarm and monitoring were not required. Late stages of both projects, with one of them being the next to last week of the project the Fire Marshal proved systems were required. I contacted several companies that stated no way could plans be generated, approved and work be completed in anyway near a 7 day period, which I expected with 28 years as a GC. I reached out to John Kirby at Unifour, who pulled an impossible task off in 6 working days, and at a fair price. Thanks to Unifour my company looks like a
Dipika Panchal
Nov 05, 2021 Report
Positive:Professionalism,Punctuality,Quality
Today I visited first time for annual inspection of fire extinguisher of my business. I received nice response from miss christy and front desk miss Melissa. Technician also very professional and responsive. I am so happy with their service. I recommend all to use this firm for your any inspection of fire and safety.
William Smith
Sep 16, 2018 Report
We began working with Unifour Fire and Safety back in the late '80's and early '90's when Morgan Anderson followed in the footsteps of his father to run and grow the family business. Unifour Fire and Safety has worked for Sherrill Furniture all of these years, growing from simple fire extinquisher service to Fire Sprinkler, Fire Pump, Kitchen Suppression and now Alarm System maintenance and inspections. This family owned and operated business is a team of close associates that work together and prove to service their customer well. I am proud to say we have partnered these years and look to the
Patricia Carpenter
Aug 01, 2018 Report
Stephen Terrell and his staff provide exceptional service! They are timely, efficient and proactive. From the initial consultation all the way through to servicing your business, they are thorough, precise and consistent. Their customer service staff and Melissa Good set a high standard!