It can cost anywhere from $1,000 - $5,000 to install a sprinkler system in a commercial building. The price depends on the size and complexity of the system.

The cost of installing a sprinkler system in a commercial building can vary greatly depending on the size and complexity of the system, as well as the location and climate. However, on average, it costs between $1.50 and $3 per square foot to install a sprinkler system. So for a 10,000-square-foot building, it would cost between $15,000 and $30,000 to install a sprinkler system.