Trees add beauty, shade, and value to a property, but they can also pose risks if they are unhealthy or structurally unsound. Understanding how to check your trees for safety can help you prevent accidents, protect property, and maintain healthy trees. These tips are aimed at homeowners and property managers who want to identify potential issues before they become serious.

Visual Signs of Tree Instability

What are common signs that a tree might be unsafe?

Look for visible indicators such as:

• Dead or broken branches, especially large ones hanging over buildings or walkways
• Leaning trunks that are getting worse over time
• Cracks, cavities, or splits in the trunk or major limbs
• Fungal growth like mushrooms or conks at the base or along the trunk
• Exposed or damaged roots, including soil heaving near the base

Noticing one or more of these signs does not automatically mean a tree will fail, but they are red flags that warrant closer inspection by a professional.

How can I tell if a branch or limb is weak?

Branches that droop, show significant cracks, or have deadwood at the ends are potential hazards. Seasonal checks in late winter or early spring are ideal because trees are dormant, making it easier to spot structural problems without leaves obstructing the view.

Can I check for internal decay myself?

Internal decay is harder to see, but some indicators include:

• Mushrooms or fungal growth on the trunk or near roots
• Sudden dieback in the canopy
• Unexplained lean or instability

While some minor decay can be managed with pruning, a certified arborist can use tools like resistographs or sounding techniques to assess internal integrity safely.

What about root problems?

Root damage or rot can destabilize a tree. Check for:

• Uplifted soil or exposed roots
• Mushrooms or fungal growth near the base
• Soil erosion around the trunk

Avoid digging or removing roots yourself if the tree is large, as this can increase risk.

Professional Assessment and Safety Measures

When should I call a certified arborist?

Call an arborist urgently if:

• A tree is leaning toward a structure or public area
• Large dead branches hang over a roof or play area
• Cracks, cavities, or fungal growth suggest internal decay

Even if you’re unsure, a professional can assess risk accurately and recommend safe action.

What professional techniques ensure tree safety?

Certified arborists use methods such as:

• Structural pruning to remove high-risk limbs while maintaining tree health
• Cabling or bracing to support weak branches or trunks
• Detailed inspections for pests, disease, or internal decay
• Risk assessments following industry standards like the ISA Tree Risk Assessment Qualification (TRAQ)

These practices help manage hazards while preserving the tree whenever possible.

How often should I check my trees?

• High-risk trees: every 6–12 months or after severe storms
• Moderate-risk trees: annually
• Low-risk trees with no issues: every 1–2 years

Regular monitoring ensures small problems don’t become emergencies.

Can I make trees safer myself?

You can reduce minor risks by:

• Removing small dead branches or debris from around the tree
• Keeping the base clear of objects or soil build-up
• Not climbing or trimming large trees without professional help

For anything structural, hiring a certified arborist is the safest choice.

How does weather affect tree safety?

Heavy rain, wind, snow, and ice can worsen weak trees. After severe weather, inspect trees for:

• Fallen or broken limbs
• Increased leaning
• Soil movement around roots

Addressing issues quickly after storms can prevent accidents and property damage.