Median costs in 2025 were $18 per foot for underground builds and $8 per foot for aerial builds, with significant variation based on terrain, density, and construction methods, according to the Fiber Broadband Association. 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. Materials: $0. Prices typically range from about $0. For planning, consider a project-wide range of $1,000 to $30,000+ for several hundred to several thousand feet, with per-foot costs. These networks are constructed both underground and through aerial fiber, at an average cost of $1,000 to $1,250 per residential household passed or $60,000 to $80,000 per mile. Zable Cable, a leading wire and cable manufacturer based in Shanghai, excels. Direct burial is the most convenient laying method for fiber optic cable and also save the duct and aerial installation costs.
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