Certified Arborist Robert Clearwater


Featured Articles
 What Your Tree Needs and Why
 Recognizing Tree Hazards
 New Tree Planting


Frequently Asked Questions
 What is the difference between an arborist and a certified arborist?
 Why are trees beneficial?

Contact Bob 1-909-524-8000 for a FREE Estimate

ISA certified arborist Robert Clearwater knows the difference between simply getting the job done and getting it done the right way! With over 25 years experience Bob is the expert in horticulture, you can trust your tree with. Call Bob at 1-909-524-8000 to schedule your consultation. California State Contractors License Number 764621.

What is an ISA (International Society of Arboriculture) Certified Arborist? To obtain an ISA certification the candidate is trained and tested in the following areas.

  • Tree Nutrition and Fertilization
  • Installation and Establishment
  • Tree Biology
  • Tree, Soil & Water Relationships
  • Cabling, Bracing & Lightning Protection
  • Identification & Selection
  • Safe Work Practices
  • Pruning
  • Diagnosis & Treatment
  • Trees, People & Ecology (Construction Damage, Hazard Trees)
  • Construction Preservation
  • Tree Risk Assessment

Services Offered:

  • Integrated Pest Management (IPM): This approach relies primarily on non-chemical means (such as controlling climate, food sources, and building entry points) to prevent and manage pest infestation. Chemical treatments are used only in a crisis situation threatening rapid losses or when pests fail to succumb to more conservative methods. 
  • Tree Trimming: Quality pruning for all trees is available. All work is done to the standards of The International Society of Arboriculture. We take pride in every tree. Get expert thinning, lacing, raising tree skirt.
  • Clearing: Thorough weed abatement, Fire Code enforcement, steep embankment clearing, storm damage, tree removal, stump grinding.
  • Tree Medicating: Take out the guess work with an expert in arboriculture specializing in insect disease diagnosis and treatment.
  • Construction Planning: It is possible to preserve trees on building sites if the right measures are taken. The most important step is to hire a professional arborist during the planning stage. An arborist can help you decide which trees can be saved and can work with the builder to protect the trees throughout each construction phase. for more information see Avoiding Tree Damage During Construction.
  • Law Suit: As a certified arborist Robert Clearwater is an expert in arboriculture and can be called as an expert witness as well as a written opinion resource.


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