Upgrade a lawn

• Fix, as a green
• Fix a patch, say
• Do a yard makeover
• Patch the lawn, in a way
• Put in a new lawn
• Improve the lawn
• Turf anew
• Lay a new lawn
• Repair a lawn

Wiktionary Word definitions in Wiktionary
vb. (context transitive English) To sod again; to cover (a lawn) with fresh sod.