Homeowners can expect to pay $10 to $25 per linear foot for new ductwork installation, including both materials and labor. Larger or more complex homes may see higher costs. The main cost drivers are materials, installation time, and environmental factors that affect trenching, conduit, and terminations. ulling has been the first technology for installing OF cables in duct. The difference is rarely about the cable alone. This article provides cost. Buying fiber optic installation services involves several cost components, with total price influenced by length, location, and access.