Let us know how we can help you and a Guardian representative will contact you within 24 hours.

What kinds of fire alarms are there?

There are two types of fire alarms: ionization fire alarms and photoelectric fire alarms. Ionization fire alarms detect flaming, fast-moving fires – curtain fires, trash can fires, etc. Photoelectric fire alarms are best for smoky, smoldering fires, such as electrical fires that start out behind walls. There are also dual sensor fire alarms which, naturally, combine both types into one.

A Guardian representative will contact you within 24 hours.

Guardian Performs with ServiceTrade

Providing faster, smarter, and more efficient fire protection

Learn more here

Our Service Areas

For over 30 years, Guardian has provided one stop shop fire safety solutions in Maryland (MD), Virginia (VA) & Washington, DC.

Blog Posts

Do You Know the Most Common Causes of Fire in Your Industry?
July 17Read More »
Fire Protection Services for Restaurants in Maryland
July 17Read More »
What Are The Best Fire Protection Companies Near Me?
June 17Read More »

7668 Standish Place
Rockville, MD 20855

24 Hour Customer Service

Phone: 301-861-0972

Fax: 301-591-4294

Email us »

What kinds of fire alarms are there?

Local Reviews for Washington, DC

Local Reviews
for Washington, DC