1 The average vinyl siding cost is $2 to $12 per square foot installed. 2  For a typical home with 1,500 exterior square feet, that works out to a total cost of $3,000 to $18,000.inyl Siding Average Costs. 1  The average vinyl siding cost is $2 to $12 per square foot installed. 2  Trim pieces will raise the overall cost a bit because they are more labor-intensive, as will soffit, fascia, and window channels if they are not included in the estimate. 3  Removing old siding might cost $1,500 to $3,500.