Why Tree Risk Assessments Are Essential for Property Owners in the Midwest

May 21, 2025

From Asset to Liability

In the heart of the American Midwest, trees are more than just part of the landscape—they are essential components of residential, commercial, and agricultural environments. Mature specimens like the white oak, sugar maple, and American elm offer beauty, shade, and property value. But without proper oversight, these same trees can become liabilities. Tree risk assessments are not optional—they are essential for responsible property management.

A man is standing on a trailer filled with logs.

What Is a Tree Risk Assessment?

A tree risk assessment is a systematic evaluation performed by a certified arborist to determine the likelihood of a tree—or part of a tree—failing and causing damage or injury. These assessments are guided by industry standards set forth by the International Society of Arboriculture (ISA), and they are a core service offered by Midwest Tree Surgeons.



The process includes an inspection of the tree’s structural integrity, overall health, species-specific behavior, and environmental factors like soil condition and wind exposure. Arborists then classify the risk level and offer tailored recommendations—ranging from minor pruning to full removal.

A person is climbing a tree with a backpack on their back.

Why Midwestern Property Owners Need Them

In the Midwest, the tree population includes many large, long-lived species. While this is a benefit for biodiversity and aesthetics, it also introduces structural challenges—especially as trees age. Native species like the bur oak or eastern cottonwood are known for their towering size, but they are also vulnerable to windthrow, internal rot, and storm damage.


The Midwest experiences a broad spectrum of weather conditions, from ice storms in Illinois to tornados in Missouri and prolonged droughts in parts of Iowa and Indiana. These conditions place additional stress on even healthy trees. A single windstorm can take down a limb from a seemingly strong hackberry or silver maple, potentially damaging a home, power line, or vehicle.



Tree risk assessments identify such vulnerabilities in advance—before the damage occurs.

A white truck with a crane on the back of it is parked in front of a house.

Real Risk, Real Liability

Many homeowners assume their trees are stable simply because they have “been there forever.” Unfortunately, age does not equal strength. Internal decay, root girdling, insect infestations, and fungal infections often remain invisible to the untrained eye. Trees may still leaf out and appear healthy while hollow on the inside.



If a tree falls and causes damage—and it is determined that the hazard was foreseeable—property owners can be held legally and financially responsible. A tree risk assessment, especially one performed by a certified arborist, is often considered due diligence in both insurance and legal contexts.

Looking up at the branches of a tree with lots of green leaves against a blue sky.

What Assessments Look For

When Midwest Tree Surgeons performs a tree risk assessment, we evaluate the following:


  • Root and trunk stability: Signs of decay, cracks, or previous failure points.
  • Branch structure: Weak unions, excessive weight, or previous storm damage.
  • Species behavior: Some trees, like the fast-growing boxelder, are naturally prone to limb drop.
  • Environmental context: Proximity to structures, foot traffic, utilities, or drainage issues.
  • Pest and disease presence: Emerald ash borer, anthracnose, or fungal rot common in local species.



Using tools such as resistographs and soil probes—combined with visual inspection—we deliver a detailed report with our findings and recommendations.

A pile of logs and stump in the grass.

Preventive Care Saves Money

A comprehensive assessment may recommend something as simple as targeted pruning to reduce weight on a large limb of a red oak, or cabling to support a split-trunk linden. These low-cost interventions can prevent high-cost outcomes like emergency removals, property repairs, or lawsuits.



For trees that pose a severe threat, removal may be necessary. In such cases, early identification ensures a safe, controlled removal under proper conditions—not a rushed response during a storm cleanup.

A person is cutting a tree branch with a pair of scissors.

Protect Your Property—and Your Peace of Mind

Whether you own a single-family home in Warren County or manage a commercial lot in greater St. Louis, a tree risk assessment provides clarity. It turns uncertainty into action and transforms potential liabilities into managed assets.


At Midwest Tree Surgeons, our ISA Certified Arborists are trained to identify risks with scientific accuracy and decades of field experience. We understand the native trees of the Midwest because we work with them every day.


Do not wait for nature to force your hand. Schedule a professional tree risk assessment and take a proactive step toward protecting your property, your investment, and the people who live or work beneath your canopy.

A man is climbing a tree with a blue sky in the background
A large tree with a blue hose attached to it is in front of a house.
A man is cutting down a tree in the woods with a chainsaw.
A man is climbing a tree with a chainsaw.
A close up of a tree trunk in the woods with leaves on the ground.
A close up of a tree branch with yellow leaves
The sun is shining through the branches of a tree in a field.
September 23, 2026
Evergreens are often valued because they provide year-round color, screening, and structure in the landscape. When sections of an arborvitae, juniper, spruce, or similar evergreen suddenly begin turning brown or losing foliage, however, bagworms may be responsible. Bagworms are caterpillars that construct protective bags from silk and pieces of the plants they are feeding on. Because those bags blend into surrounding foliage, an infestation can become significant before the insects attract much attention. Understanding how bagworms feed and when they are easiest to control can help protect valuable trees and shrubs from unnecessary damage. The Bags Can Be Easy to Miss Bagworms get their name from the portable cases they build around themselves. As the larvae feed , they add pieces of needles, leaves, and twigs to the outside of the bag. This camouflage can make them difficult to recognize, particularly when populations are still relatively small. The bags may look like small brown cones or pieces of dried vegetation hanging from the branches. Penn State Extension notes that bagworms can become serious pests on arborvitae, juniper, spruce, fir, and other conifers because substantial feeding damage can occur before the infestation becomes obvious.
September 18, 2026
Fall is an especially useful time to take a closer look at the structure of mature trees . As leaves begin to thin and eventually drop, branches, unions, cracks, cavities, and other structural features become easier to see.  That makes autumn a practical season for identifying problems that may be harder to spot during summer. It also gives homeowners time to address weak limbs or other concerns before winter snow, ice, and wind place additional stress on the canopy.
September 10, 2026
A healthy tree should not look like a telephone pole entering the ground. Near the base of the trunk, the tree should widen where the major roots begin to spread outward. This area is known as the root flare, and it can reveal a great deal about whether a tree was planted at the correct depth.  When the root flare is buried under soil, mulch, or landscaping material, the tree may face long-term problems that are easy to miss at first. Looking at the base of the trunk is one of the simplest ways to spot a planting issue before it becomes more serious.
September 2, 2026
A tree can appear healthy overall and still develop a section of dead or dying branches. When branch dieback appears suddenly, especially in one part of the canopy, it can be a sign that something is interfering with the tree’s ability to move water and nutrients where they are needed.  For homeowners, the important question is not simply whether a branch is dead, but why it died. Midwest Tree Surgeons evaluates tree health, structure, pests , disease, and site conditions to help determine what may be causing the change.
August 25, 2026
When a tree grows too large for its surroundings, removing the upper portion of the canopy may seem like a quick solution. This practice, commonly called tree topping, involves cutting major branches or leaders back to stubs or lateral branches that are too small to assume the terminal role.  Although topping can immediately reduce a tree’s height, it can also create lasting structural and health problems. For homeowners concerned about an oversized or potentially hazardous tree, professional pruning is generally a better approach.
August 18, 2026
When insects begin damaging a tree, the first instinct may be to treat the problem as quickly as possible. But not every insect requires the same response, and some insects that look harmful may not be the actual cause of the decline. Applying the wrong treatment can waste time, money, and potentially put additional stress on the tree.  Midwest Tree Surgeons takes a diagnosis-first approach to tree care. Correct pest identification helps determine whether treatment is needed, which method is appropriate, and whether the real problem may involve disease, environmental stress, or another underlying issue.
August 11, 2026
Trees often show signs of trouble long before they experience major decline. One warning sign that deserves attention is the appearance of a canker—a localized area of dead or damaged bark that develops on a trunk, branch, or stem. Cankers can be caused by fungi, bacteria, environmental injury, or a combination of stress factors, and they often reveal that a tree is struggling to defend itself.  While not every canker means a tree is doomed, these lesions can provide valuable clues about underlying health problems. Midwest Tree Surgeons helps property owners evaluate symptoms such as bark damage, dieback, discoloration, and structural weakness so that appropriate care can begin before problems become more severe.
August 6, 2026
Pine trees are valued throughout the Midwest for their year-round beauty, wind protection, and ecological importance. Although these evergreens are generally hardy, they can become vulnerable to insect pests when stressed by drought, storm damage, construction activity, or disease. One group of insects that deserves particular attention is the pine bark beetle . While these beetles are small, their activity can have significant consequences for individual trees and, in some situations, entire stands of pines.  Recognizing the early signs of bark beetle activity allows property owners to respond before damage becomes more extensive. Professional evaluation is often the best way to determine whether a tree can be preserved or whether additional management measures are appropriate.
July 28, 2026
Standing beneath a towering oak or sycamore, it is easy to appreciate a tree’s size. What is less obvious is its age. Many of the mature trees found throughout Missouri and the greater American Midwest have been growing for generations, quietly enduring changing weather, shifting landscapes, and the passage of time. While no tree lives forever, some species possess remarkable longevity, allowing them to become living landmarks that connect communities with their natural history.  Understanding why certain trees live for centuries can help property owners appreciate the importance of proper tree care and preservation.
July 21, 2026
Pruning is one of the most valuable services a professional arborist can provide, yet it is often misunderstood. Some homeowners worry that removing healthy branches may harm a tree, while others assume pruning is only necessary when limbs become hazardous. In reality, proper pruning is a proactive practice that supports tree health, improves structure, and helps trees adapt to changing environmental conditions.  When performed correctly and at the appropriate time, pruning works with a tree’s natural biological processes, allowing it to continue growing safely and efficiently for years to come.
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