A lot of people think an arborist is someone who turns up with a chainsaw and starts cutting. Fair enough. From the street, that is often the bit you see. A branch comes down, a chipper starts up, and by the end of the day the yard looks different.
But the real work of an arborist starts before the first cut.
An arborist looks at the tree, the ground it is growing in, the buildings around it, the people using the space, and the risk if something goes wrong. In Perth, that can mean checking a gum tree after a long dry summer, pruning a verge tree before it rubs on a roof, removing a palm that has outgrown a tight backyard, or making a storm-damaged tree safe before the next front rolls through.
I have seen plenty of trees that looked harmless from the kitchen window but told a different story up close. Dead wood sitting over a driveway. Heavy limbs pulling away from the trunk. Roots disturbed by paving. Old lopping cuts had left weak regrowth. That is where arborist work earns its keep.
A good arborist protects people, property, and the tree where possible. Sometimes that means pruning. Sometimes it means removal. Sometimes it means telling the client, “Leave it alone for now, but keep an eye on this part.”
That sort of straight answer matters.
What Does An Arborist Actually Do Day To Day?
An arborist inspects, prunes, manages, removes, and advises on trees. The work changes from job to job because no two trees or sites are exactly the same.
One day might be a simple crown lift in a suburban backyard so a family can walk under the tree without ducking every time. The next day might be a large tree removal beside a fence, pool, shed, and retic line, where every branch has to be lowered carefully. Then there are commercial sites, schools, strata blocks, council verges, and emergency call-outs after storms.
At its core, arborist work is about judgement. Anyone can cut a branch. The harder part is knowing which branch to cut, where to cut it, how much to remove, and whether cutting is even the right answer.
The Short Answer: Arborists Care For Trees And Manage Tree Risk
An arborist is a trained tree care professional who assesses tree health, prunes branches, removes unsafe trees, grinds stumps, manages pests and disease, advises on planting, and helps reduce tree-related risk.
That sounds neat on paper, but in the real world it can be messy.
A homeowner might call because one branch is hanging over the patio. Once we arrive, we may find the branch is only part of the issue. The tree may have a weak union, too much weight on one side, dead wood higher in the canopy, or roots affected by recent digging. That changes the advice.
As I often say on site:
“A proper arborist looks at the whole picture: the tree, the soil, the structures nearby, the access, and the people who use the space. Sometimes a clean prune is enough. Sometimes removal is the safer call.”
That is the difference between tree work and guesswork.
Why Arborist Work Matters More Than Most People Realise
Trees do a lot of good. They give shade, cool the yard, soften hard landscaping, improve street appeal, and make a property feel settled. In Perth, a healthy tree can make a big difference on a hot afternoon when the paving is throwing heat back at you.
But trees also carry risk when they are poorly managed.
A dead limb over a driveway is not just untidy. It can fall on a car or someone walking underneath. A tree too close to a roof can damage gutters, tiles, and solar panels. Roots can lift paving or interfere with old pipes. A badly lopped tree can grow back in weak, heavy shoots that fail later.
The trick is not to panic every time a tree drops a twig. Trees are living things. They shed leaves, bark, fruit, flowers, and small branches. The job of an arborist is to tell the difference between normal tree behaviour and a warning sign worth acting on.
7 Main Jobs Arborists Handle On Perth Properties
Most arborist work falls into a few clear categories. The details change, but the goal is usually the same: make the tree safer, healthier, better suited to the site, or remove it safely when it cannot stay.
Here are the main jobs arborists handle:
- Inspecting tree health and structure
- Pruning trees for safety, shape, and clearance
- Removing unsafe, dead, or unsuitable trees
- Grinding stumps and clearing green waste
- Managing pests, disease, and soil stress
- Giving tree advice, reports, and written quotes
- Responding to storm damage and urgent hazards
1. Tree Inspections: Finding Problems Before They Become Expensive
A tree inspection is often the first step. We look at the canopy, trunk, branch unions, root zone, lean, cracks, decay, dead wood, pests, fungal growth, and what is happening around the tree.
That last part matters.
A tree does not grow in a vacuum. It grows beside driveways, houses, patios, sheds, fences, pools, roads, powerlines, footpaths, and retic systems. The same tree that is fine in a paddock may be a problem on a tight suburban block in Joondalup or Scarborough.
During an inspection, an arborist may ask:
- Has the tree dropped large limbs before?
- Has there been recent digging, paving, or building near the roots?
- Has the canopy thinned out?
- Are branches rubbing on the roof?
- Is the lean new or long-standing?
- Are there cracks, cavities, or fungal growth?
- What would the tree hit if a limb failed?
I remember looking at a mature gum in an older inland suburb where the owner was worried about leaves in the gutters. That was the small issue. The larger concern was a heavy limb with a split forming at the union, sitting above the driveway where the kids parked their bikes. A bit of leaf litter was annoying. That limb was the real risk.
That is why an inspection should come before the recommendation.
2. Tree Pruning: Cutting For Health, Clearance, And Safety
Pruning is one of the most common jobs arborists do, but it is also one of the easiest to get wrong.
Good pruning is not about hacking a tree back until it looks “tidy”. It is about choosing cuts that support the tree’s structure, reduce hazards, improve clearance, and keep the tree healthy for the long run.
In Perth, we often prune trees for:
- Dead wood removal over patios, driveways, and play areas
- Crown lifting so people, cars, and trucks can pass underneath
- Roof, gutter, and solar panel clearance
- Weight reduction on heavy limbs
- Fence-line clearance for access or neighbour issues
- Formative pruning for young trees
- Remedial pruning after poor past lopping
- Thinning and balancing where the canopy has become too dense or uneven
A light prune can make a big difference. Done properly, it can reduce risk without ruining the shape of the tree. Done badly, it can stress the tree, invite decay, and create weak regrowth that becomes tomorrow’s headache.
One of the worst things we see is old lopping work where large limbs were cut back to stubs. At first, the client may have felt the tree was “under control”. A couple of seasons later, the regrowth comes back thick, upright, and poorly attached. Then the tree needs more work than it would have if it had been pruned properly in the first place.
Cheap cuts can be dear in the end.
3. Tree Removal: When Saving The Tree Is No Longer Sensible
A good arborist will try to retain a tree where it is safe and practical. But sometimes removal is the right call.
A tree may need to come out if it is:
- Dead or dying
- Structurally unsafe
- Badly diseased
- Damaging buildings, paving, walls, or services
- Growing in the wrong place
- Too close to powerlines or structures
- Storm damaged beyond recovery
- Required to be removed as part of approved site works
Tree removal is not just cutting at the base and hoping for the best. On most Perth properties, there is not enough room for that. There might be a shed on one side, a pool fence on the other, a limestone wall behind it, and a neighbour’s roof just close enough to make everyone nervous.
That is when rigging, climbing, ropes, pulleys, Elevated Work Platforms, cranes, and careful planning come into play. Large trees are often dismantled in sections. Branches are lowered under control. Trunks are blocked down piece by piece. The aim is to protect the people, the crew, the structures, and the surrounding garden.
A small mistake with a large branch can do a lot of damage. That is why removal work should never be treated casually.
4. Stump Grinding: Clearing The Bit Everyone Trips Over Later
Once a tree is removed, the stump is often left behind unless stump grinding is included. Sometimes that is fine for a while. Other times it becomes a nuisance almost straight away.
A stump can:
- Create a trip hazard
- Get in the way of mowing
- Block new paving or landscaping
- Send up regrowth
- Attract pests in some cases
- Make a clean yard look half-finished
Stump grinding removes the stump below ground level using a specialised machine. The result is a safer, more usable space.
Access is the big question. A stump in the middle of an open front yard is usually straightforward. A stump tucked between a side fence, retic line, and limestone wall is a different kettle of fish. The arborist needs to check access width, nearby services, garden edging, paving, and how deep the stump needs to be ground.
A stump left in the lawn can sit there like a bad tooth. You keep working around it until one day you have had enough. Better to sort it properly if you already know the area needs to be used again.
5. Plant Health Care: Working Out Why A Tree Is Struggling
Not every sick-looking tree needs to be removed. Sometimes the issue is stress, poor soil, compacted ground, lack of water, pests, disease, root disturbance, or past damage.
In Perth, tree stress often shows up after a long hot spell. The canopy thins. Leaves scorch. Branch tips die back. The tree may still be alive, but it is under pressure.
An arborist may look at:
- Leaf colour and density
- Dead tips or dead branches
- Signs of pests
- Fungal growth
- Soil compaction
- Mulch depth
- Watering patterns
- Root disturbance
- Drainage
- Previous pruning wounds
The advice might be simple. Add mulch. Adjust watering. Remove dead wood. Reduce limb weight. Stop piling soil against the trunk. Keep machinery away from the root zone.
Other times, the tree is too far gone. There is no point throwing good money at a tree that is already on the way out. A good arborist should tell you that plainly.
6. Cabling And Bracing: Supporting Weak Trees Where It Makes Sense
Some trees develop weak points but may still be worth keeping. A large limb might have poor attachment. A mature tree might have a structural defect. A valuable tree in a high-use area might need support to reduce the chance of failure.
Cabling and bracing involve installing support systems to reduce stress on weak parts of a tree. It is not suitable for every tree, and it is not a guarantee that nothing will ever fail. It is one tool in the kit.
The tree must be inspected first. If the structure is too compromised, removal may be safer. If the tree is otherwise healthy and the defect can be managed, support may help extend its useful life.
This is where judgement matters again. Hardware should never be used to give a false sense of security.
7. Emergency Tree Work: Making Storm Damage Safe
Storm work is a different sort of job. There is often pressure, damage, and risk all happening at once.
After strong winds or heavy rain, arborists may be called to deal with:
- Fallen trees
- Split trunks
- Hanging branches
- Branches on roofs
- Trees blocking driveways or roads
- Limbs caught in other trees
- Trees near powerlines
- Damaged trees leaning over public areas
The first step is not to rush in with a chainsaw. The first step is to make the area safe. A storm-damaged tree can shift without warning. A branch may be under tension. A trunk may roll once cut. Powerlines may be involved.
If a tree or branch is touching powerlines, keep well clear and contact the proper authority. Do not try to move it yourself. That is not worth the risk.
A calm approach wins here. Secure the site, assess the hazard, plan the cuts, and then clear the problem safely.
Types Of Arborists And What Each One Does
Arboriculture has different roles. Some arborists climb. Some work from the ground. Some inspect and write reports. Some specialise in utility or council work.
Here is a simple guide.
|
Type of arborist |
What they usually do |
When you may need one |
|
Climbing arborist |
Climbs trees using ropes, harnesses, and climbing systems |
Pruning or dismantling trees where machinery cannot reach |
|
Ground arborist |
Supports climbers, manages ropes, clears debris, feeds chippers, and helps control the site |
Most pruning, removal, and clean-up jobs |
|
Consulting arborist |
Inspects trees, gives advice, prepares reports, and assesses risk |
Development work, disputes, tree health concerns, or formal advice |
|
Utility arborist |
Works around powerlines and service corridors |
Trees interfering with electrical assets |
|
Municipal arborist |
Manages public trees in streets, parks, and public spaces |
Council tree programs, verges, parks, and streetscapes |
|
Commercial arborist |
Provides tree services for homes, strata, businesses, and government sites |
Routine maintenance, pruning, removals, clearing, and urgent work |
Climbing Arborists Handle The Hard-To-Reach Work
A climbing arborist physically gets into the tree using ropes, harnesses, climbing systems, and safe anchor points. This is often needed when an Elevated Work Platform cannot access the tree or where the tree needs careful work inside the canopy.
Climbing looks impressive, but it is not a circus act. It is controlled, planned, and physically demanding.
The climber needs to understand the tree’s structure, pick safe anchor points, manage tools, communicate with the ground crew, and make cuts while suspended off the ground. If branches need to be lowered, the climber and ground crew work together so the material comes down safely.
On a tight block, that teamwork is everything.
Ground Crews Keep The Whole Site Moving Safely
The ground crew is just as important as the person in the tree.
Ground arborists manage ropes, receive branches, feed the chipper, move timber, watch for hazards, keep the site clean, and communicate with the climber. They help control where branches land and how fast the job moves.
A good ground worker is switched on. They are watching the tree, the climber, the ropes, the public, the machinery, and the escape paths. That is a lot to juggle.
People sometimes think the ground crew is just there for clean-up. Not true. On many jobs, the ground crew is what keeps the whole operation safe and smooth.
Consulting Arborists Give Advice Before Big Decisions Are Made
A consulting arborist focuses more on assessment and advice. They may inspect trees, prepare reports, assess risk, advise on development sites, or help with decisions around retention and removal.
This can be useful for:
- Property owners unsure whether a tree is safe
- Strata managers dealing with resident concerns
- Builders planning works near trees
- Developers needing tree input before clearing or construction
- Commercial sites managing public risk
- Disputes involving neighbours or overhanging branches
In some cases, local council requirements may apply. Rules can vary between council areas, so it is worth checking before removing or heavily pruning significant trees. An arborist can help you understand what questions to ask, but council approval is still a matter for the relevant local authority.
The work of an arborist is part science, part trade, part problem-solving, and part plain old common sense. It is about knowing trees, but it is also about understanding people’s concerns: safety, cost, mess, access, council rules, and whether the advice is honest.
A good arborist will tell you what is going on in plain English.
If the tree can be helped with a sensible prune, they should say so. If the stump needs grinding before landscaping can start, they should explain why. If a tree has become unsafe and removal is the best call, they should be clear about that too.
In Perth, our trees deal with hot dry summers, sandy soils, strong winds, winter storms, tight suburban blocks, and plenty of hard surfaces. That all affects how trees grow and how they fail.
So if you are looking at a tree and thinking, “I’m not sure about that branch,” do not leave it to chance. Get an arborist to inspect it. You may only need a light prune. You may need more serious work. Either way, you will have a proper answer.
And in tree work, a proper answer is worth a lot.
