There are several things you can do yourself to keep your grass looking pretty.
Cleaning: It is important to keep you artificial turf clean. Make sure you remove any leaves, weeds and other debris immediately.
Brushing: The grass fibres tend to become a bit flat after a while. Periodically raking or brushing the fibres will sort this out.
Blowing away leaves: Keep the artificial turf free of leaves with a normal leaf blower or leaf vacuum. Make sure the sand of the infill will not be blown away.
Weed control: If you keep your artificial lawn clean you will prevent weeds, moss and other unwanted natural foes from growing and taking over. Weeds can easily be removed by plucking, brushing or raking the lawn. Make sure you remove weeds before they root, especially along the sides. There are a number of environmentally friendly products available that kill algae, moss and weeds immediately. You can buy these products at your home improvement centre or garden. Make sure you follow the instructions carefully so the artificial turf will not be damaged.
Chlorine: You should not use any chlorine products on artificial turf made from polyamide fibres (PA) as those products may discolour the fibres.