Tree and Root Removal
Complete tree and root removal across Melbourne – stump grinding, full root excavation, and root barrier installation to protect your property long-term
Cutting down a tree is only half the job. The root system left in the ground can keep causing problems long after the trunk is gone - from shooting new growth and harbouring pests to cracking foundations and blocking drainage pipes. Our tree and root removal service addresses the full problem, not just the visible part.
Whether you need stump grinding, targeted root excavation, or a root barrier to stop an aggressive species from spreading, we assess what the site actually needs and carry out the work with the right equipment. No overselling, no unnecessary excavation.
Why Root Removal Matters After Tree Removal
Many property owners assume that once the tree is down, the job is done. In practice, leaving a root system in the ground creates a separate set of problems that can develop over months and years. Here is what typically happens when roots are left untreated.
Regrowth and Suckers
Many species - particularly willows, liquidambar, and poplars - will send up new shoots from the remaining root system. These suckers can emerge metres away from the original stump and be difficult to control without treating or removing the source roots.
Pest Habitat
Decaying root systems attract termites, carpenter ants, and wood-boring beetles. Once established in old tree roots under your property, these pests can migrate into nearby timber structures - including house stumps, fence posts, and sub-floor timbers.
Foundation Damage
Roots that have already infiltrated beneath a slab or around footings continue to expand as the tree responds to removal with stress-driven regrowth. Even a dying root system can push against masonry as it decays and swells with moisture absorption.
Landscaping Interference
Surface and near-surface roots prevent lawn establishment, damage paving, and make garden bed preparation difficult. Grinding the stump without addressing lateral roots often results in the same lifting and cracking problems returning within a few seasons.
Trip Hazards
As roots decay, soil settles unevenly and root crowns can lift pavers, concrete paths, and grassed areas. Exposed root sections and uneven ground around an old stump are a genuine hazard, particularly for children and older residents.
Drainage Pipe Intrusion
Root growth does not stop when a tree is cut down - it continues as long as the root system has stored energy. Roots already inside drainage pipes will keep expanding, causing blockages and pipe fractures that require expensive plumbing repairs if left unaddressed.
Methods to Remove Tree and Roots
The right approach depends on the species, root system size, proximity to structures, and what you plan to do with the site. We use four primary methods, often in combination.
Stump Grinding
A stump grinder chews the stump down 150-300mm below ground level, eliminating the visible crown and the main lateral root connections. Ideal when full excavation is not practical. Grinding to depth prevents regrowth in most species. The resulting woodchip can be backfilled or removed.
Full Root Excavation
A mini excavator or hand digging is used to expose and remove major root runs. Necessary when roots have infiltrated under structures, need to be traced to a specific point, or when the site is being prepared for new construction. Labour-intensive but the most thorough option.
Chemical Root Treatment
Herbicide applied to freshly cut stumps or drilled into the root system kills the remaining root mass from within, preventing regrowth without excavation. Best suited to sites where digging is not practical - beside retaining walls, under hard paving, or in tight spaces. Not appropriate near waterways.
Root Barrier Installation
HDPE root barriers are installed vertically in the soil to redirect root growth away from structures, pipes, and paved areas. Used as a preventative measure when a nearby tree is being retained but its roots need to be redirected. Typically installed 600-900mm deep depending on species.
Root Damage to Property Structures
Tree roots follow moisture and oxygen, which means they consistently end up in the same locations around Melbourne homes. These are the five areas most commonly affected and what the damage typically looks like.
Foundations
Roots growing beneath or alongside slab foundations cause cracking, differential settlement, and soil shrinkage when removed without addressing the underlying root mass. Reactive clay soils common across Melbourne amplify this effect significantly.
Drainage Pipes
Fine feeder roots enter pipe joints and cracks, then expand inside the pipe creating a mesh that blocks flow. Clay sewer pipes, common in Melbourne's older suburbs, are particularly vulnerable due to joint gaps that attract root infiltration.
Retaining Walls
Root pressure behind retaining walls causes bulging, cracking, and eventual failure. Roots will exploit any gap in mortar or around wall footings, and the expansive force generated by even a moderate root system can exceed the lateral load capacity of standard garden walls.
Driveways
Surface roots lifting concrete or asphalt driveways are one of the most visible signs of root intrusion. Patching without removing the root cause results in repeat damage within two to three years. Root removal or barrier installation is required for a lasting repair.
Pool Structures
Pool shells, coping, and surrounding paving are regularly damaged by roots from liquidambar, fig, and large eucalyptus species planted too close. Root intrusion can compromise waterproofing membranes, crack coping, and destabilise the surrounding deck area.
Our Tree and Root Removal Process
A thorough tree and root removal follows a logical sequence. Skipping steps - particularly root mapping before excavation - leads to incomplete work and repeat problems. Here is how we approach every job.
Tree Assessment
Before anything is cut, we assess the tree species, approximate root spread and depth, proximity to structures and services, and what is growing around the base. Species identification matters here - a liquid amber has a different root architecture to a eucalyptus, and the removal approach needs to reflect that.
Above-Ground Removal
The tree is removed from the top down using standard sectional dismantling. The trunk is cut as close to ground level as possible, leaving a low stump that gives the grinder maximum contact with the root crown. All cut material is chipped or removed from site.
Stump Grinding
The stump grinder works through the stump and main root crown, grinding down to at least 150mm below soil level. For sites where turf or paving will be reinstated over the area, we grind to 250-300mm to ensure the backfill does not create a raised mound as the wood chip settles.
Root Mapping
For jobs that require selective root removal - near structures, pipes, or paving - we map the major lateral root runs before excavating. This prevents unnecessary digging and ensures we target the roots causing the problem while leaving surrounding soil profile intact where possible.
Selective Root Removal
Identified roots are excavated by hand or mini excavator depending on depth and proximity to structures. Roots adjacent to footings or pipes are removed by hand to reduce vibration risk. All excavated root material is removed from site. Where appropriate, a root barrier is installed before backfilling.
Site Restoration
Excavated areas are backfilled with clean fill or topsoil and compacted. The site is raked, levelled, and blown down. If required, we can arrange turf reinstatement, concrete patching, or paving reinstatement through our trades contacts. You receive a clean, stable surface ready for its intended use.
Tree and Root Removal Cost Guide
Pricing for root removal work varies significantly based on root system size, access, proximity to structures, and the extent of excavation required. These ranges reflect typical Melbourne residential jobs. Quotes are site-specific - call us on 0413 393 720 for a free assessment.
Stump Grinding Only
Grinding stump to below soil level. Suitable when root spread is not causing active structural problems. Price depends on stump diameter and access.
Stump + Surface Roots
Stump grinding combined with removal of visible surface and near-surface lateral roots. Common for roots lifting paving or damaging lawn areas.
Full Root Excavation
Excavation and removal of major root runs. Required when roots have infiltrated under structures or need to be cleared for construction. Mini excavator plus hand digging near services.
Root Barrier Installation
Physical root deflection barrier installed vertically to redirect root growth. Price per linear metre includes supply, trenching, installation, and backfill.
What affects the final price?
Key cost factors include the number of stumps, root system spread and depth, access for machinery, proximity to structures and underground services, whether an arborist report is required for council purposes, and disposal costs for excavated root material. Jobs near live services, under slabs, or requiring hand excavation will be at the higher end of the range.
Melbourne Tree Species with Aggressive Root Systems
Not all trees carry the same root risk. These are the species most commonly responsible for property damage in Melbourne and what makes each one problematic.
| Species | Root Behaviour | Common Problems | Risk Level |
|---|---|---|---|
| Liquid Amber | Wide, shallow lateral spread up to 15m from trunk | Driveway lifting, foundation cracking, pool damage, drain blockage | Very High |
| Willows | Extremely aggressive water-seeking roots, follows drainage lines | Sewer and stormwater pipe infiltration, pipe fracture, drain blockage | Very High |
| Fig Trees | Structural surface and deep roots, wide canopy matched by root spread | Slab uplift, retaining wall failure, pavement damage, pool cracking | Very High |
| Poplars | Fast-growing, water-seeking, produces numerous suckers after removal | Pipe infiltration, regrowth from roots after removal, soil subsidence | High |
| Eucalyptus | Deep taproot with wide lateral spread, reactive with moisture changes | Foundation movement on clay soils, surface root hazards, drain damage | High |
| Plane Trees | Surface roots dominate, shallow system extends well beyond canopy drip line | Pavement lifting, kerb damage, lawn establishment problems, surface hazards | High |
When to Remove Roots vs. When to Leave Them
Not every root system needs full removal. In some situations, leaving roots in place and managing the stump is the more practical and cost-effective approach. Use this guide to help identify which category your situation falls into.
Remove the Roots When...
- Roots have infiltrated drainage pipes or are causing active blockages
- The root system is lifting or cracking a slab, driveway, or retaining wall
- The species is known to sucker aggressively from remaining roots (willows, poplars, liquid amber)
- The site is being prepared for construction, landscaping, or new paving
- Roots are adjacent to or under the house footings
- Evidence of termite activity in decaying root material near the structure
- Regrowth shoots are already appearing from the root system
Leaving Roots May Be Acceptable When...
- The tree is in an open lawn area well away from structures and services
- The species does not sucker and the roots are not causing surface problems
- Chemical stump treatment can be applied to prevent regrowth
- The site will be landscaped with deep-rooted plantings that will stabilise the soil
- Cost of full excavation outweighs the risk of leaving roots in place
- The root system is already in advanced decay and poses no structural risk
Not sure which applies to your situation?
An on-site assessment gives you a clear answer based on species, root condition, and proximity to structures. Call 0413 393 720 to book a free site visit.
Root Removal Near Structures and Services
Removing roots close to buildings, underground services, and retaining walls requires a different approach to open-site work. The margin for error is smaller, and the consequences of cutting or vibrating the wrong thing are significant.
Engineering Considerations
Roots growing beneath or alongside footings have often been there for years and may be providing lateral support to the soil profile around the foundation. Removing them without understanding the site can cause soil movement and differential settlement. On jobs near footings, we typically consult with a structural engineer or experienced arborist before excavating.
For roots under slabs, non-destructive digging (hydro excavation or air knife) is used to expose root positions without disturbing the surrounding soil profile. This allows us to see exactly what is there before committing to a removal method.
Hand Digging vs. Machine
Machine excavation is efficient for open-site root removal but creates vibration and cannot be used safely within 1.5-2m of foundations, live services, or pool shells. Within these exclusion zones, all root work is carried out by hand - slower but far less risk of collateral damage. We use the machine where it is safe and switch to hand tools when we are in the sensitive zone.
Root Pruning as an Alternative
In some cases, severing the root at a strategic point and applying chemical treatment is more appropriate than full removal. Root pruning followed by a physical barrier redirects future growth without the disturbance of full excavation. This is particularly applicable for trees being retained on site where specific root runs are causing localised damage.
Dial Before You Dig
Before any excavation deeper than 300mm, we check for underground services using Dial Before You Dig data. Gas lines, communications conduits, and water mains are common at shallow depths in established Melbourne suburbs. This step is not optional on any job we do.
Council Permits and Root Removal
In some Melbourne councils, removing roots from a protected tree that is being retained on site requires an arborist report and council approval. If the tree is being removed, the permit covers both the above-ground work and root removal. We advise you on permit requirements during the initial assessment.
Soil Reinstatement After Excavation
Excavated areas near structures need careful backfilling and compaction to prevent settlement. We use clean fill compacted in layers, not loose soil or woodchip from the grinding. This matters most near footings where voids in the soil profile can allow slab movement over time.
Preventing Future Root Problems
The best root removal job is the one you never need. Here are three ways to reduce root-related property damage when replanting or managing existing trees.
Species Selection
Choosing a species appropriate to the available space is the single most effective prevention strategy. Small-to-medium natives like correas, grevilleas, and compact leptospermums have non-invasive root systems and are well suited to Melbourne gardens. Avoid willows, figs, and large eucalyptus species within 10-15m of structures or underground services.
Root Barriers at Planting
Installing a root deflection barrier at planting time costs a fraction of what root damage repairs cost later. Barriers are most effective when installed as a full surround rather than a single-sided deflector, and need to be at least 600mm deep for most ornamental species. We can advise on barrier type and depth based on the species being planted.
Strategic Planting Distance
As a general guide, plant trees at a distance from structures equal to at least their mature canopy radius. For species with known aggressive root systems, double that distance. Keeping trees well-watered during establishment reduces the stress-driven water-seeking behaviour that drives roots toward drains and buildings.
Tree and Root Removal: Frequently Asked Questions
Do I need to remove the roots when I remove a tree?
Not always. For trees in open lawn areas well away from structures and services, stump grinding is often sufficient. Root removal becomes necessary when roots are causing active damage, when the species is known to regenerate from roots, or when the area is being prepared for construction or hard paving. We assess the specific situation and recommend the appropriate scope of work.
How far do tree roots typically spread?
Root spread varies considerably by species but commonly extends well beyond the canopy drip line - often 1.5 to 3 times the canopy radius in lateral spread. Species like liquid amber, willow, and fig can push roots 10-15 metres from the trunk. Depth varies too: most feeder roots are within the top 600mm of soil, but structural roots and taproots of large eucalyptus can go several metres deep in suitable soils.
Will tree roots continue to grow after the tree is removed?
Root cells continue to be active as long as the root system has stored energy and moisture. Without a photosynthesising canopy, roots cannot generate new energy, so growth will gradually stop. However, many species will generate sucker shoots from the root system as a survival response, and these shoots will feed the roots and restart growth. Chemical treatment or physical removal is needed to prevent this cycle in aggressive species.
How long does a tree and root removal job take?
A standard removal with stump grinding typically takes half a day to a full day depending on tree size. Full root excavation adds significant time - a job requiring manual excavation near structures may take two to three days. Root barrier installation is usually completed in a few hours for standard lengths. We provide a time estimate at the quoting stage so you can plan around the work.
Can you remove roots from under a concrete slab?
Yes, but it depends on the slab configuration and the extent of root infiltration. Chemical treatment can kill roots that have grown beneath slabs without excavation in some cases. Where physical removal is required, we may need to core or break sections of the slab to access the root runs, then repair after removal. This is specialist work and we assess it carefully before committing to a method.
Is stump grinding the same as root removal?
No. Stump grinding removes the visible stump and the main root crown to below soil level. The lateral root runs radiating outward from the stump remain in the ground. For many residential jobs this is sufficient, but where the lateral roots are causing active damage or the species will sucker from root material, additional root excavation or chemical treatment is required. We are clear about this distinction when we quote.
Do I need council approval to remove tree roots in Melbourne?
If the root removal is part of an approved tree removal, the permit typically covers both the above-ground work and the stump and root work. If you are removing roots from a tree that is being retained on site, some councils require an arborist report demonstrating that the work will not jeopardise the tree's health or stability. We advise you on permit requirements during the initial site assessment and can connect you with a consulting arborist if a report is needed.
How deep do roots need to be removed to prevent regrowth?
For stump grinding, going 150-300mm below soil level is sufficient to prevent regrowth in most non-suckering species. For species that regenerate from lateral root material (willows, poplars, liquid amber), depth alone is not the determining factor - it is the removal of sufficient root material to exhaust the stored energy in the root system, or the application of chemical treatment to kill remaining roots. We recommend the appropriate approach based on the species being removed.
Tree and Root Removal Across Melbourne
We carry out tree and root removal jobs across Melbourne's metropolitan area, including inner suburbs, middle-ring suburbs, and outer growth corridors. Here are some of the areas we regularly service.
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