How to Tell if a Tree Is Dangerous: 7 Warning Signs Every Homeowner Should Know

Trees are wonderful for our gardens — they bring shade, beauty, and even boost property value. But sometimes, what looks like a healthy tree can actually pose a serious risk to your home, car, or even your safety. Knowing how to spot the early warning signs of a dangerous tree could save you from costly damage or accidents.

If you’re unsure about your tree’s condition, here are seven key signs to watch out for. And remember: if in doubt, it’s always safest to call in a professional tree surgeon like Woodfelder Tree Care Limited, serving homeowners across Manchester and Stockport.


1. Cracks in the Trunk or Major Limbs

Visible splits or cracks, especially those that run deep into the trunk, are red flags. They can signal weakness and may cause large branches (or even the whole tree) to fail unexpectedly.


2. Leaning at an Angle

A slight lean isn’t unusual, but if a tree suddenly develops a stronger tilt, or the soil around its roots looks disturbed, it may be unstable. Leaning trees are at greater risk of falling, particularly after storms — something Manchester and Stockport residents know all too well after bouts of strong winds.


3. Dead or Hanging Branches

Large, dead branches hanging in the canopy are a common danger sign. These can fall without warning, especially in windy weather. Regular inspections can catch them before they become a hazard.


4. Fungal Growth at the Base

Mushrooms or bracket fungi growing at the base or on the trunk can indicate internal decay. Even if the tree looks fine above ground, rot inside the trunk or roots can make it unstable.


5. Cavities and Hollow Areas

Holes or hollows in the trunk aren’t always an immediate problem, but they can reduce the tree’s structural strength. If you notice a cavity growing larger or showing signs of decay, get it checked by a qualified arborist.


6. Excessive Deadwood in the Canopy

A few dead twigs are normal. But if large sections of the crown have turned bare or brittle, the tree could be struggling with disease, pests, or root damage.


7. Root Problems

Roots are a tree’s foundation. Signs of trouble include lifting soil, exposed roots, or visible rot at the base. Because root issues aren’t always easy to spot, any sudden changes in the tree’s stability should be treated seriously.


What to Do if You Spot These Warning Signs

Not every tree showing one of these symptoms is immediately dangerous — but they should never be ignored. The safest step is to have a professional arborist carry out an inspection. We can assess whether pruning, bracing, or removal is the best option.

At Woodfelder Tree Care, we provide expert tree inspections and dangerous tree removal across Manchester and Stockport. Our friendly, qualified team will give you clear, practical advice and take care of any risks safely and efficiently.


Summary: Better Safe Than Sorry

A dangerous tree can be hard to spot until it’s too late — but these seven warning signs are a good place to start. Regular checks and early action can prevent accidents, protect your property, and keep your garden safe.

Not sure about your tree? Call us today on 0161 327 3011 for a free, no-obligation quote. We’ll help you enjoy your trees without the worry, with reliable services available across Manchester and Stockport.