Armored fiber optic cables designed for direct burial cost $6-14 per linear foot. Conduit systems add $2-4 per foot but allow future cable additions. Handholes and. Home and business fiber optics projects typically range from a few hundred to several thousand dollars, depending on run length, fiber type, and labor needs. The main cost drivers are materials, installation time, and environmental factors that affect trenching, conduit, and terminations. BroadbandUSA collected information about network construction expenses to increase awareness of the costs associated with deploying a broadband network. Commercial building installations with 100-200 network drops generally range from $15,000 to $30,000.