A method to repair moisture damaged wood core boat hulls remotely identifies and repairs all wet core hull areas and optionally performs preventive maintenance on dry hull areas to restore the integrity of a fiberglass boat hull and prevent new water infiltration damage to a boat hull. The wet area repair guidelines using a surface moisture mete Any balsa cored area reading 15% or above is considered a wet area. Any wood cored area reading 20% or above is considered a wet area. The repair steps involves removing all through-hull fittings or hardware. Wet core areas are then dried out using heat lamps, lights or heaters, hot-vac systems, or octopus vacuum with grid system. If necessary, any area not drying out is de-cored and repaired accordingly. After repairs are finished, all through-hull fillings or hardware is reinstalled using new sealant.