The average cost of hydroseeding is 6 to 20 cents per square foot, as of 2015, but the most common price ranges from about 7 to 10 cents per square foot. Larger jobs, such as highway reconstruction, cost between 3 and 5 cents per square foot, according to Turbo Turf.
In addition to paying for the hydroseeding, some companies may charge for travel back and forth for water, as the process takes several tanks in most cases. However, a homeowner may have the option to offer water from the home for the project, as water is often available from a home water hose. Additional costs may include materials, such as mulch, and labor.