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What is a tree assessment?

How much does a tree assessment cost?

How do you do a tree assessment?

Let's find out!



Are you in need of a tree assessment in the Portland Metro area?

There are times when an arborist is required to assess a tree's health - such as when a tree has been damaged. A tree, however, can sometimes undergo subtle changes throughout its lifespan. A change in leaves or broken limb may not seem alarming.

TreeMedics LLC offers the best arborist assessment service available.

We're looking forward to working with you!


How do you determine when to contact a professional?


Schedule an arborist evaluation with TreeMedics when your tree:

  1. Has discolored leaves during spring or summer.

  2. Grows unevenly, is lopsided, or leans too far.

  3. Has cracks/splits in the trunk or peeling bark.

  4. Has prematurely stopped growing; or drops its leaves early.


A Tree Assessment: When to Call an Arborist

Our arborists at TreeMedics Tree Care are frequently asked, “Can you diagnose my tree over the phone?”.  A certified arborist can most likely narrow down the problem with your tree, but it is hard to give an actual diagnosis over the phone.  As with a doctor's visit, it's best to inspect the tree in person to pinpoint any issues.  In-person assessments provide arborists with the opportunity to evaluate your trees and come up with a diagnosis as well as a plan to help maintain their health.

In order to assess the health of trees, they should be examined twice a year, once in the winter and once in the summer.  During winter, arborists are able to identify weak branch structure, animal cavities, and potential decay, as leaves are not masking these factors.  In the summer, arborists can examine the color of leaves and the development of twigs.  By not having your trees assessed regularly, small problems can develop into more serious problems that will negatively affect their health and longevity.

Tree Assessments: Why You Should Get One

An arborist can spot potential tree problems that the average homeowner cannot.  Arborists are capable of spotting pests, diseases, and other damages that can adversely affect the health of the tree and possibly cause it to collapse.  Having a tree fall on your property can cause extensive property damage as well as serious injuries and even death. 


Here are the top three reasons to survey your trees twice a year:

  • Safety: Trees or even tree branches falling on your property can pose a serious hazard. Biannual tree assessments help identify issues that may cause a tree or tree branch to collapse.

  • Tree Health: People who are not trained to look for diseases and harmful insects can easily miss the effects of these diseases. In most cases, arborists can recognize and treat infestations and diseases quickly and effectively.

  • Tree Aesthetics: Recommendations for insect infestations, diseases, fertilization, and pruning based on tree assessments will improve the appearance of the tree.


What Does a Tree Assessment Include

An average homeowner cannot spot potential problems with their trees like a trained arborist. The issues our arborists look for during a tree survey are as follows:


  • Cracks: Trees with cracks are a common problem noted by arborists. Cracks in the bark, softwood, and heartwood weaken a tree's structure and make it susceptible to disease, insects and decay.

  • Problems with Root Plate: When the root plate is softened or degraded, lateral roots are separated, resulting in an unstable tree. Deep planting, root disease, and mower blight can all cause root plate issues.

  • Girdling Roots: Tree roots sometimes wrap around the trunk and compete with it for water and nutrients. When the trunk and the roots expand into each other, the tree starts to have problems.

  • Leaning: A tree which loses its attachment to the soil will start to lean. In the event that the tree's lean continues to worsen, then it will have to be removed.

  • Decay: Occurs when wounded tissues in the inner heartwood soften as a result of infection.

  • Co-dominant Leaders: When there are two equally prevailing terminal stems, one of them must be removed as they will compete for resources and one of them will fail.

  • Growing Conditions: Proper growing conditions are vital to prevent structural defects in trees.

  • Insects and Disease: Invasive insects and diseased trees leave signs that are hard to detect for homeowners, but an arborist knows what signs to look for. Early detection will help you avoid serious tree damage.

  • Non-defects: Homeowners may be concerned by non-defects, such as yellow needles, loss of foliage, and peeling bark. In some instances, these occurrences may be natural and nothing to worry about.


We identify tree defects and recommend corrective measures

When cared for properly, your trees will live longer, be healthier, and look better. Since the health of one tree can affect the health of all the trees and shrubs on your property, consulting a specialist is a wise move.


TreeMedics Tree Service excels at discovering what the tree needs to fit its environment. Any hazards or defects will be identified by our arborists, who will make recommendations for pruning, cabling, or removal, as necessary. You can count on our experience to find the ideal solution to your tree problem.

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