Design Tree Maintenance & Landscaping Inc.


We are a full service tree & landscaping company, and a registered contractor. We are fully insured with a talented staff comprising certified arborists to keep your trees healthy year-round.


Robert L. Kett, owner and certified arborist, is a Phoenix native working in the industry for more than 20 years. He has built a business that prides itself on dependability, knowledge and friendliness over the past 12 years.


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We provide the following residential and commercial services in the greater metropolitan Phoenix, Arizona area:

  • Crown Cleaning 
  • Structural Pruning
  • Removals
  • Yard Clean-up/Maintenance
  • Stump Grinding
  • Sick Tree Diagnosis
  • Organic Deep Root Fertilization
  • Crane and Manlift Operations
  • Irrigation Installation/Repair
  • Micro-Injections