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

https://wiki-velo.win/index.php/Tree_Care_101:_Must-Know_Decisions_for_Employing_a_Professional_Tree_Service_in_Columbus,_OH

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