The cost of a water damage restoration cleanup depends on the size of the flooded area and amount of time needed to handle the water repair. If your insurance policy covers water damage restoration, you are typically only responsible for the deductible. Water moves quickly and is extremely destructive, if not removed immediately with the correct equipment, there can be larger problems like mold growth and even structural damage. When completed properly, fixing water damage can take several days and multiple man-hours to complete, which may have varying costs.