Cockroach Extermination Cost by Square Footage Home SizeAverage Cost for Cockroach Extermination Up to 1,000 square feet$100 to $300 1,000 to 2,000 square feet$150 to $500 2,000 to 3,000 square feet$200 to $650 More than 3,000 square feet$400 to $900 28 Feb 2022