Seeding is an inexpensive way to establish a beautiful new lawn or just close up the bald spots.  The seeding should be done early enough in the growing season to allow the seed to develop a root systems and grow lush grass blades.  The other alternative is for a quick and healthy lawn, though more costly, is to lay sod.  Grass sod is used when it is too late in the growing season for seed to take root, or if you require an instant lawn.  We take great care when installing grass sod to ensure it takes root into the fresh top soil below.