Comprehensive Fire Extinguisher Service for Commercial Buildings

Relay Fire & Safety provides complete fire extinguisher service for commercial, industrial, and institutional properties across the Mid-Atlantic and Northeast. A well-placed and properly maintained fire extinguisher can make all the difference during a small fire incident, protecting lives and minimizing damage. Our certified technicians handle every aspect of inspection, testing, maintenance, and replacement to help your business stay compliant and prepared.

We offer a wide range of fire extinguishers suitable for various fire types and environments. Our team ensures that all extinguishers are strategically positioned, correctly labeled, and regularly serviced, so they are always ready for use. In addition to maintenance and inspection, we provide complete sales, installation, and replacement services for all extinguisher models and cabinets. Relay Fire & Safety also offers hands-on fire extinguisher training to help your staff use the equipment safely and effectively during an emergency.

Types of Fires Types of Fire Extinguishers

Fire extinguishers are designed to fight different types of fires. This class system categorizes the appropriate extinguisher for a particular kind of burning material.

Class A: Common Combustibles

Trash, Wood, Paper, Plastic, Cloth

Class B: Liquids

Gasoline, Kerosene, Oil, Propane, Paint

Class C: Electrical Equipment

Computers, Fax Machines

Class D: Combustible Metals

Magnesium, Lithium, Titanium

Class K: Cooking Media

Cooking Oils and Fats

 

Water and Foam

These extinguish the fire by taking away the heat. Foam effectively separates oxygen from other elements in the fire. Water extinguishers should only be used for Class A fires.

Carbon Dioxide

These fire extinguishers extinguish fire by taking away the oxygen and removing the heat with a very cold discharge. Carbon dioxide extinguishers are effective for Class B and C fires.

Dry Chemical

This is the most widely used type today. They extinguish the fire primarily by interrupting the chemical reaction of the fire. The multipurpose dry chemical extinguisher can be used for Class A, B, and C fires.

Wet Chemical

This is a new agent that extinguishes the fire by removing the heat and preventing re-ignition by creating a barrier between the oxygen and fuel. This extinguisher was designed especially for Class K fires in commercial kitchens.

Halogenated or Clean Agent

These extinguishers include the halon agents as well as the newer and less ozone depleting halocarbon agents. They extinguish the fire by interrupting the chemical reaction of the fire. Clean agent extinguishers are designed mostly for Class B and C fires.

Dry Powder

These extinguishers are similar to dry chemical except that they extinguish the fire by separating the fuel from the oxygen or by removing the heat of the fire. Dry powder extinguishers are only for Class D fires.

Water Mist

These extinguishers are a recent development that extinguish the fire by taking away the heat element of the fire. They are an alternative to the clean agent extinguishers where contamination is a concern. Water mist extinguishers are intended for Class A fires, and can also be used for Class C fires.

Cartridge Operated Dry Chemical

These fire extinguishers extinguish the fire primarily by interrupting the chemical reaction. A multipurpose dry chemical extinguisher can be used for Class A, B, and C fires; an ordinary dry chemical extinguisher should only be used for Class B and C fires.

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