On average, Single-mode (OS2) ranges from $0. Factors like armor, jacket rating (LSZH), and raw material indices influence the final ex-factory price. Buying fiber optic installation services involves several cost components, with total price influenced by length, location, and access. This guide presents typical price ranges in USD to. Armored fiber optic cables designed for direct burial cost $6-14 per linear foot. These cables include gel-filled cores and water-blocking protection. Conduit systems add $2-4 per foot but allow future cable additions. Handholes and. How to Lower Your Cabling Costs (Without Losing Quality) If I were buying cable for my own project today, here is my checklist to save money: Stop Over-Specifying: Don't buy armored cable for an indoor, climate-controlled office just because “it sounds safer. Commercial building installations with 100-200 network drops generally range from $15,000 to $30,000.