On average, the cost to hydroseed ranges between $500 and $4,000. The cost depends on the size of the area you’re hydroseeding, the type of grass seed, slope of your yard, and other factors. Hydroseed is a mixture of grass seed, fertilizer, water, and mulch that you spray on the lawn using a pressurized sprayer. While the process is more expensive than seeding, grass will grow more quickly, and is often healthier. 

The cost to reseed or overseed a lawn is about $1,050 on average, ranging from $450 to $1,700, depending on lawn size, seed type, and location. Popular seed types for residential lawns include bahia, fescue, and Bermuda. Keep in mind that it costs $0.10 to $0.20 per square foot to seed or overseed a lawn. Additional cost factors may include:

• Fertilization: $80–$400

• Soil testing: $700–$2,100

• Yard cleanup and leaf removal: $200–$560

• Treating weeds: $110–$325

• Mowing: $50–$210

Whether you’re putting down fresh seed or reseeding, there are a few things to keep in mind when seeding your lawn. Be sure to choose the correct seed for your climate, seed at the right time of year, and water two to three times a day for the first week. Generally, Dudley recommends seeding in spring and fall as it is usually cooler and rainier.