Fire Sprinkler Freeze Protection

Picture of Frozen PipesProperly winterizing your fire sprinkler system will not only save you money from costly repairs, but will ensure that the system is fully operable in the event of a fire.

As the cold sets in many property owners worry about their fire sprinkler pipes freezing. Luckily, there are several resources and tips that exist to help prevent this.

The National Fire Sprinkler Association hopes that both homeowners and business owners alike find the below resources useful.

Looking for a fire sprinkler contractor to winterize your fire sprinkler system? View our contractor directory to locate a contractor in your area.

Overall Resources for Fire Sprinkler Freeze Protection

NFSA fire sprinkler freeze protection guide

Fire Sprinkler Freeze Protection FAQs

How do I protect my fire sprinkler system from freezing?

Several measures exist for fire sprinkler freeze protection, including heat tracing, proper insulation, and the usage of UL listed antifreeze.

For more information on antifreeze and fire protection and the sunset date, visit the NFSA’s resource here.

Can fire sprinkler systems freeze?

Just like plumbing and HVAC, fire sprinkler systems are subject to freezing. Typically, property owners do not know there is a problem until temperatures rise from above freezing levels. This is because ice will plug up any breaks in the pipe. It is only once the ice melts that signs of leaking become apparent.

Will sprinkler pipes freeze at 32 degrees?

Like anything else that contains water, fire sprinkler systems are subject to freezing at 32 degrees Fahrenheit. Luckily measures such as heat tracing and antifreeze exist to prevent this.

Fire Sprinkler Freeze Protection Resources

Looking to winterize a fire sprinkler system, or need to learn about emergency repairs? The NFSA has compiled the below resources

How to Winterize a Fire Sprinkler System (

The Cold Reminder about Sprinkler Systems – National Fire Sprinkler Association (

Emergency Repairs? What Do I Do? February 24, 2021

Fire Sprinkler Insulation White Paper, April 2020

Further Reading on Dry Pipe Systems and Fire Sprinkler Heat Trace Products

Texas State Fire Marshal’s Notice – Dry Pipes on Wet Systems

UL Certified NFPA 13 Heat Trace Products