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. Total Project Costs: For commercial installations, expect costs ranging. The median cost of labor and materials to deploy underground fiber is $18. For planning, consider a project-wide range of $1,000 to $30,000+ for several hundred to several thousand feet, with per-foot costs. Buying fiber optic installation services involves several cost components, with total price influenced by length, location, and access.
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