When Trees Start to Fail — and What Can Be Done
Even the healthiest trees can run into structural issues over time. From visible splits in trunks to drooping, unstable branches, these faults aren’t always just cosmetic — they can pose serious risks to people, property, and the long-term vitality of the tree itself.
At LM Tree Surgery Winchester, we help homeowners across Winchester and Hampshire identify and resolve these problems before they become dangerous or irreversible. Whether it’s preventative work or urgent structural intervention, the right tree surgery solution can save both the tree and your peace of mind.
Splitting Trunks: A Sign That Should Never Be Ignored
A split trunk often appears suddenly — perhaps after a storm or heavy snow — but the causes usually develop over time. These splits typically begin at a weak junction between two major stems, especially when they compete to be the main leader.
Left untreated, trunk splits can:
- Lead to full trunk failure
- Become entry points for rot and disease
- Invite pests that accelerate decay
- Endanger nearby structures or people
Our solution begins with a careful assessment. In some cases, cable bracing or bolt systems can be installed to stabilise the trunk and allow healing. In others, strategic pruning or crown reduction may reduce pressure and weight to prevent worsening.
Weak Limbs: A Common Hazard in Mature Trees
Heavy, horizontal limbs often begin to sag or crack under their own weight — particularly in older or fast-growing species. These weak limbs may not break immediately but can pose an ongoing risk in high winds or heavy rainfall.
Warning signs include:
- Visible cracks or sagging
- Bark peeling near the branch union
- Excessive limb movement in wind
- Uneven weight distribution across the canopy
At LM Tree Surgery Winchester, we offer targeted limb reduction or removal, carefully balancing the canopy to maintain health and aesthetics while improving safety. For heritage or specimen trees, we can also provide supportive bracing systems where removal isn’t ideal.
Co-dominant Stems and V-Unions: A Hidden Threat
Co-dominant stems occur when two main branches grow from the same point and compete for dominance. This creates a narrow “V” shape that’s inherently weak and prone to splitting. Unfortunately, this fault often goes unnoticed until one stem fails.
Why V-unions are problematic:
- Lack of strong connective wood between stems
- Pressure builds as branches thicken
- Water can collect, encouraging rot at the junction
If caught early, we can selectively reduce or remove one of the stems, preserving the rest of the tree. In more advanced cases, cabling or even partial dismantling may be necessary.
Crown Weight and Wind Sail: How Shape Affects Safety
A tree’s shape affects how it handles environmental stress. Dense, top-heavy canopies are more likely to act as sails in strong winds, putting pressure on trunks and major limbs. This can cause splitting, leaning, or even full tree failure.
Professional crown thinning helps by:
- Reducing wind resistance
- Improving light and air flow
- Relieving stress on vulnerable limbs
- Encouraging healthier internal structure
Our team at LM Tree Surgery Winchester carefully thins or lifts the crown, always taking species, age, and location into account to ensure long-term balance and strength.
Disease and Decay Weakening Structure
Sometimes, internal weakness isn’t obvious until it’s too late. Fungi such as honey fungus or Ganoderma can attack wood from within, hollowing out trunks or limbs while the outside appears fine. Signs like fungal brackets, excessive leaf drop, or oozing sap are red flags.
We conduct visual tree assessments (VTA) and, when necessary, more advanced inspections to detect decay. If intervention is possible, we’ll carry out corrective work to extend the tree’s life. If not, safe dismantling may be the best option.
The Value of Regular Inspections
Many of the issues described above can be prevented — or at least managed — through regular professional inspections. Spotting early signs of stress or imbalance allows for lighter, less invasive interventions that preserve the tree and reduce long-term risk.
A proactive approach helps:
- Avoid emergency removals or storm damage
- Preserve trees that might otherwise decline
- Maintain garden safety and aesthetic value
- Comply with local safety responsibilities
Conclusion
From splitting trunks to sagging limbs, structural problems in trees aren’t just natural developments — they’re serious concerns that require skilled attention. Addressing them early can save trees, prevent accidents, and protect the character of your landscape.
At LM Tree Surgery Winchester, we specialise in diagnosing and resolving these issues with precision and care. Serving clients throughout Winchester and Hampshire, our expert team is equipped to provide the right solution — whether that’s pruning, bracing, or full structural support. Don’t wait for damage to worsen. Get in touch and let us help your trees grow strong, safe, and beautiful for years to come.
Call us on: 01962 571 792
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