On average, fiber optic cable installation costs $1 to $6 per 30cm depending on the fiber count. It's very difficult to estimate an exact price for an entire building to be wired, however an example would be $15,000 to $30,000 for a building with 100 to 200 drops. On average, it costs between $1,000 to $1,250 per residential household passed or $60,000 to $80,000 per route mile, to “lay” or bury fiber optic cable. Single-mode fiber costs less per foot than multimode fiber, but it requires more. How much will fiber installation cost my business? Prices for fiber installation are dependent on your specific business requirements, and thus vary based on a number of factors.