When you contract to have work done at your residence, any project that totals over $500 must have a valide California Contractor’s License. The artificial turf installer is required by law to display the license number on all of their written materials. By using a licensed artificial turf installer you are assured that the company has adequate knowledge and experience to do the job right, and that they are covered by the required bonding, insurance and workers compensation insurance to protect you and your home.