We help homeowners stop foundation failure and restore safety with calm, engineering-led solutions.
We are Underpinning Melbourne. Our team brings 20+ years’ experience and VBA registration to every job. We focus on safety, structural integrity and council-compliant methods.
We assess risk, explain causes and deliver lasting repairs. Our core services include concrete underpinning, resin injection, screw piling, restumping and wall crack repairs. We coordinate structural engineering reports and provide fixed-price quotes with minimal disruption.
Modern geopolymer resin can stabilise weak ground and gently re-level floors faster than many traditional methods. We protect your home with engineered work that aims for permanent results and tidy sites.
Get a free, no-obligation structural assessment today. Call Chris: 1300 970 930 or Email Chris: chris@underpinning-melbourne.com.au.
Key Takeaways
- We restore foundation safety with engineered, VBA-compliant solutions.
- Our team offers fixed-price quotes and clear scope of works.
- Geopolymer resin can often re-level floors faster and with less disruption.
- Assessments are calm, practical and focused on permanent remediation.
- We coordinate engineering reports and council-compliant designs for peace of mind.
- Free, no-obligation inspections — call or email Chris to start.
Protecting your home’s integrity in Knox, today
Protecting your home’s structure starts with spotting small changes early. We explain common signs so you can act before minor problems become costly. Our approach is calm, clear and focused on long‑term safety.
Cracks in walls, sticking doors and uneven floors
Cracks, sticking doors and uneven floors are typical early signs of movement in a foundation. They often show where timber stumps or footings have shifted.
Gaps, moisture and subsidence around the home
Gaps at skirtings or cornices and localised moisture can soften soil. That raises the risk of subsidence and ongoing settlement.
What these symptoms mean for your foundation and safety
- Cracks and frame distortion suggest footing movement under load.
- Sticking doors and hard‑to‑slide windows indicate frame stress.
- Persistent signs mean your house needs a professional assessment to confirm cause and extent.
- Book a same‑week visit for a visual check and clear next steps to protect your home’s integrity.
| Symptom | Likely cause | Immediate action |
|---|---|---|
| Wall cracks | Footing movement or soil loss | Arrange visual inspection |
| Uneven floors | Stump deterioration or settlement | Measure levels and plan repair |
| Gaps at skirtings | Timber shrinkage or subsidence | Check for moisture sources |
We prioritise safety and honest advice. Call Chris: 1300 970 930 or Email Chris: chris@underpinning-melbourne.com.au for a free assessment.
Signs your home may need underpinning or restumping
Noticing small shifts in your home can prevent larger structural problems. We encourage homeowners to watch for clear, repeatable signs. Early attention reduces damage and cost.
Cracks in walls, sticking doors and windows, and uneven floors
Diagonal cracks near windows and doors usually show footing movement. These cracks often appear where the frame is under stress.
Uneven floors and soft spots often point to failing stumps or local soil loss under bearers. Doors that stick or don’t close square are a common symptom.
Gaps, moisture and subsidence around the home
Visible gaps at skirtings or cornices can mean a change in support beneath the house. Prolonged moisture around the perimeter accelerates timber rot and can trigger subsidence.
What these symptoms mean for your foundation and safety
If you spot these signs, your home may need underpinning or restumping to restore safety. Our assessment clarifies cause, likely damage progression and the best remediation.
- Diagonal cracks near openings indicate load stress and possible footing movement.
- Uneven floors suggest stump failure or localised soil loss.
- Gaps and moisture can hide ongoing damage under floors and increase subsidence risk.
We offer free, no‑obligation structural assessments and transparent, fixed‑price quotes. Homeowners receive a written summary with photos and a clear scope. Call Chris: 1300 970 930 or Email Chris: chris@underpinning-melbourne.com.au.
Our core services for Knox homeowners
We offer tailored structural solutions to address foundation and soil problems. Our team is VBA registered and insured. We focus on clear assessments and minimal disruption.
Concrete underpinning for long-term stability
Concrete underpinning provides proven, long-term stability for deeper or heavier foundation sections. It is ideal when loads need a permanent, engineered fix.
Restumping and reblocking to relevel and restore support
Restumping replaces failing stumps to relevel floors and restore uniform support. Our crew uses timber, concrete or steel options depending on site needs. Read more on restumping vs underpinning.
Resin injection (geopolymer) for fast soil stabilisation
Geopolymer resin compacts weak soil quickly. It can lift settled foundations to close cracks and re-level floors faster than many traditional methods. This method reduces excavation and site disturbance.
Screw piling solutions for reactive or weak soils
Screw piles transfer loads to competent strata with minimal vibration. They suit reactive ground and tight-access sites where conventional digging is unsuitable.
- We blend methods when one solution is not enough.
- Wall crack repairs follow once movement is controlled.
- Structural engineering reports are coordinated and certified.
- Works are sequenced to reduce disruption and protect finishes.
Speak with our experts for a tailored plan and fixed-scope services. Call Chris: 1300 970 930 or Email Chris: chris@underpinning-melbourne.com.au.
Underpinning methods and when to use them
Choosing the right repair technique starts with a clear view of soil, loads and existing foundations. We outline common methods and when each is most suitable. This helps you set expectations for access, duration and finishes.

Traditional concrete: staged pits and pins
Concrete methods use staged pits and pins to transfer load to deeper bearing. Work is sequenced to keep the structure supported at all times.
The process needs excavation, formwork and curing time. It suits heavier loads and sections that need a permanent, engineered fix.
Geopolymer resin injection to compact soil
Resin injection compacts weak soil beneath slabs and footings. It can lift settled floors and close cracks with minimal digging.
This technique is fast and reduces site disruption. It is ideal where soil tests show shallow, compressible layers.
Screw piles for deeper load transfer
Screw piles anchor into stronger layers for deeper load paths. They work well in difficult access or reactive soil that drives seasonal subsidence.
Installation is quick and causes low vibration. Pile selection depends on load, soil reports and existing foundation details.
- How we decide: comparative techniques are assessed against soil tests, load paths and foundation condition.
- What to expect: a clear method statement, program, safety controls and quality monitoring.
- Outcome: chosen techniques control movement, limit future subsidence and protect finishes.
Call Chris: 1300 970 930 or Email Chris: chris@underpinning-melbourne.com.au.
Restumping and reblocking explained
Replacing failed stumps restores a safe, level floor and lasting support for older houses.
When stumps fail: timber rot, moisture and settlement
Older timber stumps can rot where ground moisture sits. Rot and settlement lead to a sagging house.
Signs include sticking doors, cracking and uneven floors. Quick assessment limits further foundation damage.
Choosing concrete, steel or composite stumps
We select concrete, steel or composite stumps based on load, corrosion risk and soil reactivity.
Our staged repair program uses temporary propping, careful jacking and staged replacement to minimise disruption.
- We check stump spacing and bearer condition before work.
- Footings and materials are matched to site drainage and soil behaviour.
- Reblocking restores levels and reduces ongoing movement risks.
| Material | Durability | Best for |
|---|---|---|
| Concrete | High | Long-term load and termite resistance |
| Steel | Very high | Reactive soil and heavy loads |
| Composite | High | Corrosion resistance and lightweight sites |
We deliver council-compliant methods, neat reinstatement and honest assessments. Ask for a free inspection and clear advice. Call Chris: 1300 970 930 or Email Chris: chris@underpinning-melbourne.com.au.
Engineering, compliance and documentation you can rely on
Every project starts with a documented inspection and a clear assessment that protects your home and rights.
We coordinate VBA‑compliant designs and certified engineering reports. Our registered engineers check load paths and building details. We issue method statements and quality plans so the repair meets current industry standards.

VBA‑compliant designs and structural engineering reports
Our team prepares detailed designs, staged inspection schedules and certification for council approval. Safety and structural integrity guide every decision.
Council permits, certifications and as‑built records
- Every job begins with a full inspection and written assessment.
- We engage registered structural engineers for design and certification.
- Our team manages permits, staged inspections and final compliance sign‑off.
- Documentation includes method statements, ITPs and as‑built records for your protection.
- Quality checks verify levels, bearing capacity and material specifications on site.
We work to industry standards and prioritise safety, integrity and quality. For a clear, honest process and minimal disruption, contact us or Call Chris: 1300 970 930 or Email Chris: chris@underpinning-melbourne.com.au. We remain available for homeowners after the work is complete.
The Underpinning Melbourne process in Knox
We begin every job with a practical inspection that focuses on safety, documentation and next steps. Our process is clear and staged so you know what happens and when.
Free, no‑obligation structural assessment and photo review
Start with a free visual assessment. You can also send photos for a fast preliminary view.
This first check helps us decide if a full site visit, tests or an engineering report are needed.
Transparent, fixed‑price quote with scope and program
We provide a transparent, fixed‑price quote that lists scope, inclusions and a program. The quote explains how we will manage the job and protect finishes.
Calm, low‑disruption works with safety front and centre
- We schedule works to suit your home and minimise disturbance.
- Safety controls cover excavation, propping and services isolation.
- Our team briefs you daily on progress and next steps.
Follow‑up, monitoring and practical maintenance guidance
Monitoring points track levels throughout the process. On completion we give practical maintenance advice to manage drainage and moisture.
Book a free assessment or try our cost calculator for a quick estimate. Call Chris: 1300 970 930 or Email Chris.
Pricing, quotes and what affects cost in Knox
Clear quotes and honest advice protect your budget and the long‑term health of your home. We provide transparent fixed‑price quotes so you know what is included and why.

Site conditions, access, soil, extent of damage and method
Your final cost depends on access, depth, soil reactivity, extent of damage and the chosen method.
Shallow resin repair needs less excavation than concrete work. Tight access or deep repairs increase labour and time.
Our honest assessments: we never upsell unnecessary work
We only recommend repairs your foundation truly needs. Soil tests and engineering inputs guide quantities and avoid change orders.
We can stage works if budget timing is important. Every quote is itemised and explains inclusions and realistic allowances.
Insurance, warranties and value through doing it right
We consider insurance requirements and warranty obligations when defining a repair strategy.
Doing it right the first time reduces call‑backs and protects your house. Each proposal outlines risks, contingencies and how we protect your property.
- Your cost depends on access, depth, soil reactivity, extent of damage and chosen method.
- We provide an itemised quote that explains inclusions and realistic allowances.
- We explain how moisture or roots may affect scope and timing.
- Ask for a no‑obligation quote tailored to your site conditions in Knox.
| Factor | How it affects cost | What we do |
|---|---|---|
| Access | Tight access raises labour and equipment needs | Survey access and propose suited methods |
| Soil type | Reactive or soft soil can need deeper or staged works | Arrange soil testing and engineer input |
| Extent of damage | Widespread settlement increases program length | Provide phased options and clear scope |
| Method chosen | Concrete vs resin vs piles affects duration and finish | Compare methods and show trade‑offs in your quote |
Call Chris: 1300 970 930 or Email Chris: chris@underpinning-melbourne.com.au for a no‑obligation quote based on your site.
Underpinning Knox: local expertise you can trust
Our team combines local soil knowledge with precise engineering to protect homes. We bring 20+ years’ experience and a practical focus to every project.
20+ years’ experience, fully VBA registered and insured
Our experts have decades of experience delivering compliant underpinning across Melbourne. We are fully VBA registered and insured.
Minimal disruption, council‑compliant methods, quality workmanship
We plan works to minimise disruption. Our services protect building elements, services and finishes.
Quality and safety are non‑negotiable at every stage. We follow council rules and provide clear documentation.
Engineering‑focused team dedicated to structural integrity
An engineering-focused team checks load paths and bearing to meet design intent. Local knowledge of Melbourne soils speeds approvals and method selection.
- Clear communication and accountable supervision.
- Tidy, respectful work and long-term documentation.
- We stand behind our workmanship and certification for your confidence.
Ready to act? Call Chris: 1300 970 930 or Email Chris: chris@underpinning-melbourne.com.au for fast scheduling and expert advice.
Conclusion
A timely inspection can turn a small issue into a simple, cost‑effective repair.
We restore safety and calm to your home with engineered underpinning and certified designs. Early stabilisation prevents wider movement, saves finishes and reduces future costs.
Our approach gives permanent support with minimal disruption. You receive a clear quote, a practical program and VBA‑compliant certification so your foundation and house are protected.
Book a free inspection to confirm the right solution for your property. Call Chris: 1300 970 930 or Email Chris: chris@underpinning-melbourne.com.au. Send photos today for fast feedback and a convenient site visit time.