cost of installing fire alarm system
1 Fire alarm equipment is usually priced at $1 to $2 per square foot for a basic system that includes smoke and heat detectors and alarms that have both visual and audio alerts. 2  For more complex systems in large buildings, the price goes up to $3 to $6 per square foot. Adding a sprinkler system increases the price by anywhere from $3 to $12 per square foot, not including installation. 2  Monitoring fees tend to run $50 to $60 per month. 3  This usually includes an annual inspection to make sure the alarm system is functioning properly.