Resin Injection Sydney – Fast, Non-Invasive Ground Stabilisation for Your Home
If your home is showing signs of subsidence, sinking, or uneven ground, resin injection offers a fast, clean, and modern solution. At Sydney House Levelling, we provide expert resin injection services that stabilise your soil and correct minor foundation movement—without the need for extensive excavation or disruption.
What Is Resin Injection?
Resin injection, sometimes referred to as resin underpinning, is a technique used to stabilise the soil beneath your home’s foundation. It involves:
- Drilling small access points beneath affected areas
- Injecting a two-part expanding resin into the soil
- The resin fills voids, compacts loose ground, and gently lifts or supports the structure above
As the resin expands and hardens, it improves load-bearing capacity and halts further movement. The process is less invasive than traditional underpinning, making it ideal for residential homes with moderate structural issues.
Benefits of Resin Injection for Foundations
- Fast Turnaround – Most jobs completed in 1–2 days
- Minimal Disruption – No need to excavate or move out
- Cost-Effective – Typically cheaper than full underpinning
- Targeted Application – Only inject where support is needed
- Non-Toxic & Environmentally Safe
- Works with Existing Foundations – Great for relevelling and preventative maintenance
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Resin injection is particularly effective for light structural movement, offering rapid results and improved soil strength with minimal mess.
Our Resin Injection Process
- Schedule On-site inspection and foundation assessment
- Review soil type, structure load, and problem areas
- Drill small holes through the slab or footing
- Inject expanding resin to fill gaps and compact soil
- Monitor ground lift and structure realignment in real time
- Seal injection points and clean up
We work with precision and care to ensure optimal results, minimal disturbance, and clear communication from start to finish.
Your Structural & Foundation Repair Specialists
We’re proud members of the Master Builders Association of NSW, HIA, QBE.
Our friendly team is here to give you honest advice, fast service, and long-term results.
Is Resin Injection a Long-Term Solution?
Resin injection can be highly effective for stabilising foundations, but it’s important to understand its limitations:
- It may not be permanent in unstable or clay-heavy soils
- It may need ongoing monitoring or maintenance
- It may not be appropriate for severe structural damage—in which case underpinning or re-stumping might be required
We’ll always advise you honestly on whether resin injection is the right path or whether a more robust solution is needed.
House Relevelling Specialists
Old or damaged timber stumps can shift over time, causing floors to dip and frames to twist. We remove failing stumps and install strong, modern replacements—ensuring your home is safely supported and structurally sound for decades to come.
Re-Stumping
When foundations are no longer strong enough to support your home, underpinning adds the reinforcement needed to stabilise and secure your property. We use engineered solutions to extend your footing into stable soil and stop further movement.
Underpinning
For lighter structures or concrete slabs, resin injection is a fast, non-invasive way to stabilise sunken ground. This method lifts and strengthens foundations by injecting an expanding resin that fills gaps under the home—ideal for driveways, patios, and parts of the house affected by soft or shifting soil.
Resin Injection
Foundation Repair Services
We inspect, repair, and upgrade the beams, bearers, and joists under your home to make sure everything’s structurally sound. If you’ve noticed bouncy or noisy floors, it might be time to look beneath the surface.
Sub-Floor Works
Ventilation
Moisture trapped under your home can lead to mould, timber decay, and structural problems. We install smart sub-floor ventilation systems that keep air moving and dampness out—helping protect your investment.
Not sure what’s causing movement in your home? We offer professional foundation inspections to identify the issue. Our team provides a clear, jargon-free report with real advice and no pressure.
Foundation Assessments
Why Sydney Homeowners Choose Us
We’re proud to work with homeowners across Sydney, from the Inner West and Hills District to Penrith, Ryde, Blacktown, and beyond. Our experience with everything from reactive clay soils to ageing timber homes means you’re in safe hands.
- Over 20 Years of On-the-Tools Experience
- Fully Licensed & Insured Builder
- Warranty Guaranteed on All Work
- Master Builders Association Member
- Local Knowledge of Sydney’s Soils
- Friendly, Straight-Talking Service
What Our Customers Have To Say
Our Process
Simple. Straightforward. Stress-Free.
From first call to final fix, here’s our general process.
Get in touch and we’ll book a convenient time to inspect your property. We’ll confirm everything you need to know before we arrive.
Step 1: Schedule On-Site Meeting
Step 2: Get a Detailed Assessment
We carry out a thorough inspection and provide a clear report with a fixed-price quote—no surprises, just expert advice.
Once approved, we lock in your job, organise materials, and handle any permits or prep. You’ll get full job details upfront.
Step 3: Schedule the Work
Our experienced team completes the work to the highest standard. After a final walkthrough, we leave you with a clean site and a written warranty.
Step 4: Job Done – With Warranty
House Levelling FAQs
How much does resin injection cost in Sydney?
Costs typically start from $3,000–$6,000 depending on the area treated and severity of soil movement. We provide clear, upfront quotes after inspection.
How long does resin injection last?
In stable soils, resin injection can last decades. However, in reactive soils or poor drainage conditions, results may vary. Regular checks are recommended.
Will this fix all my wall cracks?
Resin stabilises the ground and can lift your home slightly, but it won’t close all cracks. Cosmetic repairs may still be needed after stabilisation.
Can resin injection be used for commercial buildings?
Yes, but it's most commonly used for residential slabs, driveways, and lightweight extensions. Large-scale structural repairs may still require underpinning.
Is this covered by insurance?
It depends on your policy and the cause of the movement. We can assist with reports if required for claims.
Ready to Relevel Your Home?
If you’re noticing signs of sinking, sloping, or soft ground under your home, resin injection might be the fast, affordable solution you need. At Sydney House Levelling, we combine experience with honesty to recommend the right fix for your foundation.
Book your site inspection today and we’ll assess your soil, structure, and give you the facts—so you can make the right call with confidence.