The Danville Lawn: For over 15 years, Barnett Lawn Care has been performing professional Lawn Care in Danville California and the surrounding San Ramon Valley. As lawn care professionals, we have been transforming average looking yards into lawns with the lush healthy green grass that gets the Wow. I wish our lawn looked like that comments. We call this the "Danville Lawn". Although such lawns are usually groomed weekly by gardeners, they are actually kept green and healthy by Lawn Care Professionals like us who provide expert services such as dethatching, aeration and lawn fertilization.