fire sprinkler system estimate cost
1 According to the Fire Protection Research Organization's 2009 Fire Sprinkler Cost Assessment, sprinkler installation costs homebuilders $0.38-$3.66 per sprinklered square foot, with an average cost of $1.61 per sprinklered square foot.2  For an average 2,200-square-foot home, expect to pay about $3,542. The type of piping used in home fire sprinkler systems can significantly affect the cost. 2  Homes that use nonmetallic pipe (like CPVC or PEX pipe) tend to pay less than homes using a mix of metallic (copper pipes) and nonmetallic or exclusively metallic.