Specs: 1,000 ft outdoor duct with aerial access, fusion splicing, moderate traffic control. Totals: Materials $350, Labor $1,200, Equipment $450, Permits $150, Delivery/Disposal $60. Total. Fiber optic splicing costs vary widely depending on project size, location, fiber type, and site conditions. Main cost drivers include on-site labor, specialized fusion splicing, testing, and any necessary restoration of network performance. These fibers are thin strands, often as small as a human hair, that transmit data as pulses of light.