What it usually means, the likely causes in order, what to safely try first, what a pro charges in Canada, and when to stop and call one.
This guide covers the common cases. Describe your exact problem and get a personalized diagnosis — free to start, with a DIY vs. call-a-pro verdict and a real cost estimate.
An overgrown, damaged, or dying tree or shrub can need anything from a routine trim to a careful removal, and the causes span normal overgrowth, storm damage, and disease or pest stress. What changes the conversation is context: size, position, and what the plant hangs over. A shrub swallowing a window is a weekend decision; a cracked limb over a roof, a driveway, or a neighbour fence is a risk decision. Photograph visible damage, dead branches, holes, and discolouration, and note honestly whether decline has been gradual over seasons or sudden after a storm, because those histories lead to very different advice.
Routine overgrowth is not urgent and can be scheduled around plant health and season. Storm damage with hanging or split limbs, a tree that has started to lean, or branches resting on a roof or line should be treated as prompt, because a partly failed limb chooses its own moment to finish falling. A plant declining gradually is worth assessing within the season; a plant that has died completely near a structure is worth removing before it becomes brittle and more hazardous to take down.
Many landscape plants were placed as small specimens with little regard for mature size, so a healthy shrub eventually blocks windows, paths, and eaves, and a tree canopy spreads over roofs and neighbouring yards. Nothing is wrong with the plant; the conflict is between its adult dimensions and the space it was given.
High winds, heavy wet snow, and ice loading split unions, tear limbs, and strip bark, sometimes leaving hangers — broken limbs lodged in the canopy. Damage that appeared immediately after a specific weather event, in an otherwise healthy plant, fits this cause, and hidden cracks can extend beyond the visibly broken wood.
Discoloured or wilting foliage in one section, oozing or cracked bark, holes, sawdust-like residue, dieback from branch tips, or a canopy thinning over a season or two can signal disease or insects at work. Decline affecting one side or starting at the top is a pattern worth showing an arborist rather than pruning blindly.
Compacted soil, grade changes that bury the trunk flare, circling roots in a too-small planting pit, drought, or a new drainage pattern drowning the roots can all starve a plant slowly. These causes explain decline with no obvious pest or storm story, and they are the ones pruning alone will never fix.
| Job size | Typical estimate (CAD) |
|---|---|
| Simple fix — the straightforward version of this repair | $90–$150 |
| Major job — complex, hidden, or replacement-level work | $150–$500 |
Estimates only, calibrated to Greater Toronto Area trade rates and adjusted by region on this site — not a quote. Your exact price depends on the cause, parts, and access. A personalized diagnosis narrows this range using your specific symptom.
Light pruning of small shrubs, clearing dead twigs by hand, correcting mulch piled against a trunk, and routine shaping within easy reach are reasonable homeowner work. Call an arborist for anything involving height, large limbs, chainsaws above ground level, trees near lines or structures, removals, and any unexplained decline you want diagnosed rather than merely tidied. A qualified arborist assessment is also the right spend when a large tree shows lean, base fungi, or major dieback, because the question there is structural safety.
It depends on the cause and how much live, sound structure remains. Decline from drought, soil problems, or a treatable pest sometimes reverses with proper care, while advanced internal decay or major root failure usually does not. An arborist can assess the trunk, canopy, and roots and give a candid prognosis. That assessment is worth paying for on a large tree either way, because both saving and removing are significant decisions.
It varies with species and purpose. Many trees are best pruned in dormancy, flowering shrubs are timed around their bloom cycle so next year flowers are not removed, and dead or hazardous branches can come off any time they are identified. Storm hazards should not wait for an ideal season. Describe the plant and the goal when booking, and a good arborist will schedule the timing as part of the advice.
A long-standing lean in a mature tree is often stable and normal, especially where the canopy has corrected upward. A new lean, a lean that is increasing, or one accompanied by lifted or cracked soil at the base is different and deserves prompt professional assessment. Photograph the lean against a fixed reference now so any change is provable, and keep the area under the canopy clear until it has been assessed.
Possibly. Many municipalities regulate tree removal, especially for larger trees, through permits or bylaws, and rules can also apply to trees near property lines or in protected areas. Neighbour-owned or boundary trees add another layer. Check your local requirements before booking a removal, and expect a reputable arborist to raise the permit question themselves as part of the quote.
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