How do I know if a tree is dead or just stressed?

A dead tree shows no leaf buds in spring, has brittle twigs that snap cleanly, and may have bark that slips away from the wood. A stressed tree typically still produces some foliage, though leaves may be undersized or discolored. Scratch a small patch of outer bark on a younger branch. Green tissue underneath means the tree is alive. Brown or dry tissue points to death or severe decline.

When does a leaning tree need to come down right away?

A sudden new lean, especially after rain or a storm, is an emergency. Saturated soil can release a root plate quickly, giving little warning before the tree falls. A gradual lean present for years may be stable, but a certified arborist should still assess it. If the lean is directed toward a structure, a vehicle, or a utility line, treat it as urgent and request a same-day inspection.

Can a diseased tree be saved, or does it always have to be removed?

Many diseased trees can be saved if the problem is caught early. Fungal infections, certain borers, and nutrient deficiencies often respond to targeted treatment when less than roughly a third of the canopy is affected. The International Society of Arboriculture recommends a professional health assessment before any removal decision. Removal becomes the safer choice when structural integrity is already compromised.

Do tree roots near my foundation always cause damage?

Not automatically. Most feeder roots stay in the top twelve inches of soil and follow moisture rather than crack concrete on their own. However, roots can exploit existing cracks and widen them over time. Large-caliper trees planted within ten to fifteen feet of a foundation are the higher-risk scenario. A ground-level inspection of both the root flare and the foundation will clarify whether action is needed.

Does homeowners insurance cover tree removal after a storm?

Coverage depends on where the tree lands and why it fell. According to the Insurance Information Institute, most standard homeowners policies cover removal when a tree falls on an insured structure, but they typically do not cover removal of a tree that falls in the yard without hitting anything. Documenting damage with photos immediately and contacting your insurer before cleanup begins protects your claim.

A large oak tree with split bark and a visible crack running down the trunk in a Knoxville suburban yard

Problems Hub

What you're seeing and whether it's urgent.

Tree problems usually start small and get worse with weather and time. Pick the issue that matches what you're seeing in your yard. Each page covers what causes it, how urgent it is, and your options for saving or removing the tree.

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Pick the symptom

What you're seeing in your yard

Dead Tree on Your Property

Severity

Urgent: call same day

A dead tree in Knoxville loses structural integrity within months, especially in the wet, clay-heavy soils of Knox County. EAB, Hemlock Woolly Adelgid, and Thousand Cankers Disease are active local killers. Prompt dead tree removal protects your roof, your neighbor''s property, and your insurance coverage.

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Fungal Conks at Tree Base

Severity

Urgent: call same day

Fungal conks growing at or near a tree base are shelf-like fruiting bodies that signal advanced internal wood rot. In Knoxville, Knox County soils and regional disease pressure make this symptom especially serious. Most trees showing basal conks need professional assessment immediately, and many require removal.

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Leaning Tree Assessment

Severity

Urgent: call same day

A tree leaning toward a house, fence, or driveway is one of the most urgent warning signs a Knoxville homeowner can face. Knox County soils, storm history, and active pest threats combine to make lean a genuine structural hazard rather than a cosmetic issue. A professional tree health assessment determines whether the tree can be saved or must come down.

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Overhanging Branch Hazards

Severity

Urgent: call same day

Branches that extend over a roof, vehicle, fence, or power line create serious injury and property-damage risk, especially during Knoxville's spring severe weather season and recurring winter ice events. The Valley-and-Ridge storm corridor and Knox County's dense urban canopy put many homes directly under large-limbed oaks, maples, and pines. Acting before a storm does the deciding for you is nearly always the cheaper, safer choice.

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Root Damage (Foundation, Sidewalk, or Septic)

Severity

Urgent: call same day

Invasive tree roots can crack foundations, heave sidewalks, and infiltrate septic systems, turning a landscaping asset into a costly structural problem. Knoxville's limestone-clay soils and high annual rainfall create conditions where root spread accelerates faster than many homeowners expect. Identifying the problem early and choosing the right repair method can save thousands of dollars in downstream structural damage.

How to fix it →

Split or Cracked Trunk

Severity

Urgent: call same day

A split or cracked trunk can drop a heavy limb or topple an entire tree with little warning, making it one of the most urgent hazard signs a homeowner can find. In Knoxville, ice storms, severe thunderstorms, and disease pressure from Emerald Ash Borer and Thousand Cankers Disease accelerate trunk failure. Fast professional assessment is the only safe response.

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Storm-Damaged Tree

Severity

Urgent: call same day

Storm-damaged trees can shift from nuisance to life-threatening hazard within hours, especially in Knoxville where spring microbursts, summer thunderstorms, and winter ice events are recurring threats. Knowing whether a tree can be saved or must come down is the most important decision after a storm passes. This page covers the warning signs, local risk factors, repair options, and when to call for emergency tree removal in Knoxville.

How to fix it →

Tree Disease Diagnosis

Severity

Urgent: call same day

Knoxville trees face several active disease and pest threats, including the Thousand Cankers Disease outbreak that originated in Knox County in 2010. Early diagnosis separates a treatable tree from a removal candidate. An ISA Certified Arborist inspection is the fastest way to know which situation you are facing.

How to fix it →

Tree on Power Line

Severity

Urgent: call same day

A tree or large branch on a power line is an active electrical hazard that demands immediate action. In Knoxville, storm-driven failures and overgrown canopy near utility corridors are the leading causes. Call 911 or KUB first, then a licensed tree service for safe removal once the utility company confirms the line status.

How to fix it →

Tree Too Close to House

Severity

Urgent: call same day

A tree too close to your house can damage your roof, foundation, and siding long before it falls. Knoxville homeowners face added risk from the region's clay-limestone soils, high annual rainfall, and storm seasons that push compromised trees toward failure. Knowing when to monitor versus act fast can prevent a costly emergency.

How to fix it →

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Common questions

Common tree problem questions, answered first.

How do I know if a tree is dead or just stressed?: A dead tree shows no leaf buds in spring, has brittle twigs that snap cleanly, and may have bark that slips away from the wood. A stressed tree typically still produces some foliage, though leaves may be undersized or discolored. Scratch a small patch of outer bark on a younger branch. Green tissue underneath means the tree is alive. Brown or dry tissue points to death or severe decline.
When does a leaning tree need to come down right away?: A sudden new lean, especially after rain or a storm, is an emergency. Saturated soil can release a root plate quickly, giving little warning before the tree falls. A gradual lean present for years may be stable, but a certified arborist should still assess it. If the lean is directed toward a structure, a vehicle, or a utility line, treat it as urgent and request a same-day inspection.
Can a diseased tree be saved, or does it always have to be removed?: Many diseased trees can be saved if the problem is caught early. Fungal infections, certain borers, and nutrient deficiencies often respond to targeted treatment when less than roughly a third of the canopy is affected. The International Society of Arboriculture recommends a professional health assessment before any removal decision. Removal becomes the safer choice when structural integrity is already compromised.
Do tree roots near my foundation always cause damage?: Not automatically. Most feeder roots stay in the top twelve inches of soil and follow moisture rather than crack concrete on their own. However, roots can exploit existing cracks and widen them over time. Large-caliper trees planted within ten to fifteen feet of a foundation are the higher-risk scenario. A ground-level inspection of both the root flare and the foundation will clarify whether action is needed.
Does homeowners insurance cover tree removal after a storm?: Coverage depends on where the tree lands and why it fell. According to the Insurance Information Institute, most standard homeowners policies cover removal when a tree falls on an insured structure, but they typically do not cover removal of a tree that falls in the yard without hitting anything. Documenting damage with photos immediately and contacting your insurer before cleanup begins protects your claim.