Warehouse fire protection has become a top priority for businesses across the United States. With the increasing use of high-pile storage and automated racking systems, ceiling-only fire sprinklers are often not enough to ensure compliance with NFPA standards. This is where in-rack sprinkler systems come in, designed to provide fire suppression directly within storage racks, protecting products and employees alike.
Among the leaders in this field is Guardian South Inc., a California-based fire protection company, along with several other nationwide competitors. Below, we take a closer look at the top players in the in-rack sprinkler industry, their services, and why businesses rely on them for critical fire safety solutions.
1. Guardian South Inc. – California’s Leading Fire Protection Specialist
Guardian South Inc. is a trusted name in California for warehouse fire protection and in-rack sprinkler systems. With decades of experience, the company specializes in design, installation, inspection, and maintenance of fire suppression systems tailored for high-hazard environments.
Guardian South focuses on:
- In rack sprinkler requirements for warehouses and distribution centers.
- ESFR (Early Suppression, Fast Response) sprinklers for high-pile storage.
- Performance-based fire protection design to meet complex code requirements.
- Cold storage and freezer fire safety solutions.
Known for its code compliance expertise and customer-centric approach, Guardian South has become the go-to provider for businesses that need reliable fire protection systems in California and beyond.
Website: guardiansouthinc.com
Email Address: bill@guardiansouthinc.com
Phone Number: (310) 327-2827
Mailing Address: 7231 Boulder Ave #544, Highland, CA 92346
2. Reliable Sprinkler – Elmsford, New York (Nationwide Provider)
Reliable Sprinkler is one of the most recognized names in the fire protection industry. Headquartered in Elmsford, New York, the company manufactures and supplies innovative sprinkler systems across the U.S.
Its N-RACK-EC® Extended Coverage In-rack Sprinkler System has become a popular choice for warehouses looking to reduce the number of in-rack sprinklers required while keeping water demand low. By integrating advanced designs like the “Virtual Floor” concept, Reliable Sprinkler ensures both efficiency and compliance.
3. American Fire Protection Group (AFPG) – Southern U.S.
AFPG operates across the Southern U.S., offering full-service fire protection solutions, including in-rack sprinkler design, installation, and maintenance. Known for its strong presence in Texas and neighboring states, AFPG serves industries with high-hazard commodities such as flammables, paper products, and plastics.
Businesses turn to AFPG for its regional expertise and comprehensive service packages, which cover both suppression systems and alarm monitoring.
4. VFP Fire Systems – Michigan (Nationwide Services)
Based in Michigan, VFP Fire Systems is a full-service provider offering design, BIM modeling, installation, and inspections for in-rack sprinkler systems.
They are particularly strong in serving high-bay warehouses and automated racking facilities where ESFR sprinklers alone may not suffice. With decades of experience and a national footprint, VFP Fire Systems is a trusted partner for large-scale logistics and distribution companies.
5. Viking Automatic Sprinkler Company – Multiple U.S. Offices
The Viking Automatic Sprinkler Company operates from multiple offices across the United States. Their solutions include modular in-rack sprinkler systems with integrated detection and rapid response features.
Viking’s extensive network allows it to serve clients nationwide, offering both small and large facilities customized fire protection services. Their experience in industrial shelving and warehouse environments makes them a leading choice for companies looking for scalable fire safety systems.
6. Jarrett Fire Protection – California
Jarrett Fire Protection, based in California, is another major competitor in the in-rack sprinkler space. The company specializes in the design, installation, inspection, and repair of in-rack sprinkler systems, particularly in cases where ESFR sprinklers cannot be used due to ceiling height or storage arrangements.
Jarrett is well-respected for its hands-on approach and expertise in local fire codes, making it a strong choice for businesses within California.
7. RCS Contracting (REB Contracting Services) – California & Nationwide
RCS Contracting, also known as REB Contracting Services, is a U.S.-based company with operations in California and nationwide. They handle end-to-end in-rack sprinkler projects, including evaluation, permitting, procurement, installation, and ongoing maintenance.
Their ability to manage projects from design to compliance approval makes them a reliable competitor for Guardian South in both local and national markets.
8. R.G. Fire Protection – U.S. Based
R.G. Fire Protection provides cost-effective in-rack sprinkler solutions across the U.S. They are known for designing systems that offer rapid fire suppression and easy recharge capabilities, which help minimize downtime in warehouse operations.
With expertise across multiple industries, R.G. Fire Protection is a strong player in the mid-sized business sector.
9. NAFPCO (North American Fire Protection Company) – Nationwide Contractor
NAFPCO is a national design-build fire protection contractor that provides in-rack sprinkler systems for automated warehouses and very-narrow-aisle (VNA) facilities.
Their services include:
- System design and engineering
- Installation
- Inspection and testing
- Repairs and maintenance
NAFPCO’s nationwide coverage and ability to handle complex, large-scale projects make it one of the strongest competitors in the industry.
Why Choose the Right In-Rack Sprinkler Partner?
Choosing the right company for in-rack sprinklers is critical to ensuring compliance with NFPA 13 standards, protecting high-value inventory, and maintaining workplace safety. Businesses should consider:
- Experience in warehouse fire protection
- Knowledge of local fire codes
- Proven track record with in-rack systems
- Availability of nationwide support
From Guardian South Fire Sprinkler solutions in California to nationwide providers like Reliable Sprinkler and NAFPCO, U.S. companies have access to some of the most advanced and trusted fire protection services in the world.
Frequently Asked Questions (FAQs)
1. What is an in-rack sprinkler system?
An in-rack sprinkler system is installed directly within warehouse storage racks to control and suppress fires at the source. It complements ceiling-level sprinklers and is especially important for high-pile or combustible storage.
2. Why are in-rack sprinklers necessary in warehouses?
Ceiling-only systems often cannot penetrate deep into racks. In-rack sprinklers provide localized protection, ensuring compliance with NFPA 13 standards and minimizing fire spread.
3. How do in-rack sprinklers compare to ESFR sprinklers?
While ESFR sprinklers are effective for many warehouses, they may not be suitable for very high racks, narrow aisles, or certain commodities. In such cases, in-rack sprinklers are required for full protection.
