What is Soil Stabilisation?
Soil stabilisation means reinforcing weak or shifting ground so it can support structures safely. It involves injecting specialist materials that bind soil particles, fill voids, and create a stable base resistant to erosion.
We use both ultra-low viscosity polyurethane resins and specific chemical grout systems that reach deep into the soil to stabilise it. These systems hold loose particles together and block water from moving through the soil, which causes ground movement and foundation settlement.
Key Benefits of Professional Soil Stabilisation:
- Stronger soils that can safely support structures.
- Better resistance to erosion from rain and weather.
- Improved compaction to reduce future settlement.
- Protection against moisture entering foundations.
- Immediate strengthening of weak ground conditions.
Warning Signs You Need Soil Stabilisation
Foundation issues don’t go away on their own. Ignored, they only get worse and more expensive to fix. Spotting warning signs early can save major repair costs. Call Advanced Ground Solutions if you notice any of the following:
- Uneven or sinking slabs.
- Bulging or leaning retaining walls.
- Cracks appearing in walls, driveways, or paths.
- Doors and windows sticking as the ground shifts.
Long-term structural issues include:
- Foundation movement-related jammed doors and sticking windows.
- Soil settlement-related cracked driveways and pathways.
- Leaning chimneys or structures signifying ground instability.
- Compromised soil barriers causing flooding in basements or crawl spaces.
- Changes in the landscape with unexpectedly leaning trees or plants.
Why Soil Becomes Unstable
Soil movement happens for many reasons, from natural conditions to human activity. Identifying the cause helps prevent further damage and guides the right stabilisation method.
Natural Causes
- Clay soil expansion and contraction during wet/dry cycles.
- Sandy soil erosion from water flow and wind.
- Poor natural soil compaction in fill areas.
- Underground water flow washing away soil particles.
- Tree root decay leaving voids in the soil structure.
- Natural ground settlement over time.
Human-Related Causes
- Poor construction compaction during building or landscaping.
- Inadequate drainage systems causing water accumulation.
- Excavation nearby disturbing soil stability.
- Heavy machinery uses compacting soil unevenly.
- Irrigation system leaks saturating foundation soils.
- Improper site preparation before construction.
Perth-Specific Soil Challenges
- Reactive clay soils that expand and shrink dramatically.
- Sandy coastal soils prone to erosion and washout.
- Limestone formations creating natural voids and caves.
- Seasonal rainfall variations causing soil movement cycles.
Our Soil Stabilisation Methods
Single-component resins expand when they contact moisture, sealing cracks, filling voids, and blocking water. They are especially useful in sandy soils, basements, and underground car parks where moisture is a problem.
Multi-Component Polyurethane Injection are large expanding polyurethane systems designed for situations requiring significant lift and structural support. This controlled-reaction method allows precise expansion control and is perfect for lifting settled foundations, raising concrete slabs, and large-scale soil stabilisation projects where volume expansion and structural strength are the primary goals.
Our team will assess your specific soil conditions, whether sandy soils requiring permeation or dense clay requiring alternative approaches, to determine which polyurethane system will deliver optimal results for your stabilisation needs.
Specialised low-viscosity chemical grouts that penetrate fine soil particles, binding them together and creating a waterproof, stable mass with enhanced bearing capacity. Grout injection is particularly effective for deep soil stabilisation and areas requiring maximum structural strength.
3. Ground Compaction
Controlled injection techniques that compress loose soil while filling voids, increasing density and load-bearing strength throughout the treated area.
4. Slope Stabilisation
Choosing the Right Solution:
Our skilled team evaluates your individual soil conditions, water table levels, and structural requirements to determine whether polyurethane or grout injection will produce the best results for your project. Each method has various advantages, and our team will explain which option is best suited to your site characteristics and long-term requirements.
Ground Stabilisation Services:
- Soil strengthening and underpinning support.
- Slope stabilisation to prevent erosion and movement.
- Ground compaction for construction site preparation.
- Subsidence repair to stop ongoing settlement.
- Erosion control to protect landscaping and structures.
- Void filling to eliminate dangerous ground cavities.
- Water cut-off barriers to prevent moisture damage.
Industries We Serve
Residential Properties
- Home foundation soil strengthening.
- Driveway and pathway stabilisation.
- Garden retaining wall support.
- Slope stabilisation around homes.
- Swimming pool area ground improvement.
Commercial Buildings
- Office building foundation support.
- Warehouse floor soil strengthening.
- Retail complex ground stabilisation.
- Car park and access road improvement.
Industrial Facilities
- Manufacturing plant foundation soils.
- Heavy machinery base support.
- Storage facility ground improvement.
- Processing plant soil stabilisation.
Infrastructure Projects
- Road embankment stabilisation.
- Bridge approach soil improvement.
- Utility trench soil strengthening.
- Civil engineering ground support.
What Our
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- Professional geotechnical site inspection
- Detailed soil analysis and report
- Soil stabilisation treatment recommendations
- Accurate cost estimate for all work
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FAQ
How long does soil stabilisation take?
Most residential projects take 1–3 days, while larger commercial sites may need more time depending on soil and site conditions.
Is soil stabilisation suitable for all soil types?
Yes, our team will examine your individual soil characteristics and pick correct remediation system for optimal results in clay, sand, limestone, and mixed soil conditions.
How much does soil stabilisation cost in Perth?
The cost of stabilising soil varies according to the locality, soil conditions, and access needs. Following our thorough geotechnical investigation, we offer complete quotations.
Will soil stabilisation affect my landscaping?
Our precision injection techniques cause minimal disruption to existing landscaping, driveways, and structures. Most work is completed through small injection points.
How long do soil stabilisation results last?
Properly executed soil stabilisation provides permanent ground improvement. Our materials are designed to last decades with our comprehensive warranty coverage.
Can you fix subsidence and ground settlement?
Yes, our soil stabilisation techniques are specifically designed to stop ongoing subsidence, fill voids, and prevent future ground settlement through comprehensive soil strengthening.
Do you work on slopes and retaining walls?
Absolutely. We specialise in slope stabilisation and retaining wall support, preventing soil erosion and ground movement on challenging terrain.
How long does soil stabilisation take?
Is soil stabilisation suitable for all soil types?
How much does soil stabilisation cost in Perth?
Will soil stabilisation affect my landscaping?
Our precision injection techniques cause minimal disruption to existing landscaping, driveways, and structures. Most work is completed through small injection points.