1 Generally, you can expect to pay about $90-$180 per 1,000 square feet to seed a new lawn or reseeding (renovating) an existing one. 2  According to HomeAdvisor, seeding starts at about $150, but the average price ranges from $573-$853.3  For very large yards, the cost usually tops $1,000. Generally, you can expect to pay about $90-$180 per 1,000 square feet to seed a new lawn or reseeding (renovating) an existing one. 2  According to HomeAdvisor, seeding starts at about $150, but the average price ranges from $573-$853.