Siding Installations business. Be a handyman with a niche. With low startup costs, this could be a great business opportunity. Business Overview Siding sales and installations are about as straightforward as a home improvement business start-up can get. Sell the siding, and install the siding. Pricing for siding products and installations are generally based on a per-square basis (one square equals 100 square feet). There are, like any home improvement or renovation service,...