Consider guarantee or service warranties on pruning, treatments, and newly planted trees, with clear terms and timelines.

https://wiki-club.win/index.php/7_Must-Know_Aspects_When_Selecting_a_Tree_Service_for_Safe_Tree_Removal_and_Trimming_57138

Think about service warranty or service warranties on pruning, treatments, and recently planted trees, with clear terms and timelines.