We stabilise homes and restore structural safety for homeowners who need fast, council‑compliant solutions. If your house shows cracks, sinking footings or jammed doors, we provide engineered underpinning and restumping sydney services to protect your property today.
We are underpinning specialists with over 20 years of experience. Our team is fully licensed and insured. We deliver concrete underpinning, resin injection, screw piling and retaining wall support with certified engineering reports.
Our approach keeps disruption low. You get a transparent fixed‑price quote, honest assessments and coordinated services. We never upsell unnecessary work.
Call 1300 970 930 to speak to Chris or email photos for a preliminary assessment and a free, no‑obligation structural inspection. Regain peace mind with proven solutions that protect value and long‑term stability.
Key Takeaways
- Engineered solutions: council‑compliant underpinning and restumping for durable support.
- 20+ years experience: licensed, insured experts protecting your structure and property.
- Transparent quotes: fixed prices, no upsell and clear scope of work.
- Coordinated services: from crack repairs to ventilation and engineering reports.
- Fast assessment: free inspection and quick preliminary advice via photos or phone.
- Peace of mind: safety, compliance and lasting value for your home.
Structural preservation specialists protecting Sydney homes from foundation failure
With thorough investigation and certified methods, we prevent progressive settlement and protect your home foundation. We work across the metro area with a licensed, insured team that follows council rules and OH&S practices.
Our approach is engineered and transparent. We coordinate independent engineering, provide traceable documentation and keep disruption low. You get clear findings, options in plain language and certified outcomes that insurers and councils accept.
- Investigate: site checks for reactive clays, leaks and drainage issues.
- Design: tailored support to stabilise structure and property.
- Deliver: council‑compliant methods with quality control at every stage.
| Common cause | Risk to property | Our response |
|---|---|---|
| Reactive clay or mixed fills | Gradual settlement and cracking | Engineered underpinning and prioritised quality control |
| Poor drainage or leaking pipes | Localised collapse or ongoing movement | Drainage remediation and targeted support |
| Inadequate access or tight sites | Delays or unsuitable methods | Sequenced planning and minimal disruption approach |
| Non‑compliant past repairs | Unresolved movement and insurance issues | Independent engineering reports and certified rectification |
Restumping Sydney: warning signs, causes and when to act
Early detection of foundation movement can save you thousands in repairs and avoid safety risks.
Common signs your home needs attention
Look for visible cracks in walls and floors. Small diagonal cracking around openings is a clear warning.
Watch for sloping or bouncy floors, sticky windows and jammed doors. Gaps at skirtings often show movement.
Typical causes in this region
Movement often follows leaking pipes, tree roots, reactive soil or poor drainage. Areas where water pools after rain deserve a prompt check.
When to act and what to choose
Many professionals advise a 20–30 years cycle, but act sooner after extensions or nearby excavation. Early repair limits further damage and cost.
We recommend steel or concrete stumps for long life and termite resistance. These types are adjustable on site and provide durable support for your house.
- Look for uneven floors and gaps at skirtings as early signs.
- Investigate where water ponds near footings after rain.
- Consider the time since the last restumping and any recent works.
| Issue | Typical cause | What we recommend |
|---|---|---|
| Diagonal cracks walls | Reactive clay or settling | Engineer inspection and durable stumps |
| Sticky doors windows | Localised movement | Local lift and replace with steel or concrete |
| Water near footings | Leaking pipes or poor drainage | Drainage fix plus targeted support |
Compliant, engineering-led solutions beyond restumping for lasting results
Certified engineering guides every repair we do, from concrete bays to targeted resin lifts. We design each project to meet council requirements and protect your home with lasting results.
Concrete underpinning and house levelling for subsidence
Concrete underpinning restores bearing where foundations have settled. We design bay systems to lift and level precisely. Brick piers can be rebuilt or replaced with steel posts on pads when needed.
Resin injection for targeted lift and void filling
Resin injection gives local lift with fast curing and minimal disruption. It suits voids under slabs and areas where access is tight.
Screw piling for poor soils and constrained access
Screw piling performs well in soft or filled soil. It also works in narrow side access without heavy excavation.
- Wall crack repairs and subfloor ventilation reduce moisture and recurring damage.
- Retaining wall support prevents lateral movement and protects drainage and water lines.
- We sequence work to protect windows, services and internal finishes.
- Quality control checks verify levels, alignment and serviceability.
| Technique | Best use | Compliance note |
|---|---|---|
| Concrete underpinning | Subsidence, lost bearing | Engineered bays, council approvals |
| Resin injection | Targeted lift, void filling | Fast cure, minimal disruption |
| Screw piling | Poor soil, tight access | Installed to engineer spec, low excavation |
We integrate underpinning with any required stumps or pier upgrades and deliver clean, safe worksites. The result is a compliant, engineered solution that protects your property and reduces future risk.
Our process: honest assessment, fixed scope and certified outcomes
We guide every job from first inspection to certified handover so you feel confident at each step.
From free assessment to delivery
Start: We offer a free, no‑obligation site assessment by our team. The visit is brief and practical.
Investigate: We inspect the structure, drainage and subfloor. Photos and measurements form a clear record.
Quote: You receive a fixed‑scope quote with inclusions and exclusions. That helps control cost and expectations.
Engineering, compliance and handover
We coordinate structural engineering reports and council‑compliant methods. Licensed, insured contractors carry out the work to safe OH&S standards.
Work is scheduled to suit your family and neighbours. We keep the site tidy and provide transparent updates during the project.
Completion: Practical completion includes certification and photos for your records. Call 1300 970 930 and quote your number for fast booking.
| Stage | What we do | Benefit |
|---|---|---|
| Site assessment | Free inspection by our team | Early advice, no cost to you |
| Investigation | Check structure, drainage and subfloor | Accurate diagnosis of foundation issues |
| Fixed quote | Detailed scope with inclusions/exclusions | Cost certainty and fewer surprises |
| Delivery | Licensed work, coordinated engineering | Compliant outcome and peace of mind |
Transparent pricing and value: proven methods, no surprises
Our pricing is clear and fixed so you know the likely cost before any work begins. We give plain, documented quotes and explain what affects the bottom line.
Indicative costs typically range from $5,000–$30,000+. Major jobs can be higher when access is tight or the cause is complex.
Indicative costs and key factors
- Footing type: existing piers or pads change the scope and time.
- Soil type: reactive clay or mixed fills alter methodology and cost.
- Access: narrow sites increase labour and equipment needs.
- Root cause: leaking pipes or poor drainage require combined repairs.
How we deliver value
Expect an upfront fixed‑price quote with clear inclusions and exclusions. Email photos for a fast pre‑assessment today and a ballpark figure.
| What we provide | Benefit |
|---|---|
| Fixed‑price quote | Cost certainty and documented scope |
| Photo/email pre‑assess | Quick advice before an on‑site visit |
| Documented repairs | Support for insurance and valuation needs |
We never upsell work that does not add safety or value. Call 1300 970 930 and reference your number to schedule a formal inspection.
Why homeowners choose Underpinning Sydney for restumping and foundation repairs
Homeowners trust our team because we pair engineering rigour with practical site care. We are a licensed business with over 20 years of hands‑on delivery. That experience gives you clear outcomes and long‑term support for your home.
20+ years’ experience and accountable experts
Our team includes engineers, supervisors and experienced technicians. We provide documented guarantees and insured work so you have full accountability.
Minimal disruption and safety-first practices
We keep worksites clean, secure and well ventilated. Our OH&S approach protects your family and pets and reduces disturbance.
Wide coverage and neighbour-friendly delivery
We serve the eastern suburbs, Inner West, North Shore and Western Sydney. We manage tight access, terraces and complex boundaries with care and respect for your house and neighbours.
- Proven methods: engineered underpinning and reliable foundation repair.
- Clear process: fixed scopes, documented reports and certified handover.
- Coordinated services: we integrate drainage, piers and levelling to protect value.
For a technical comparison of methods, see our comparison of resin and concrete underpinning. We deliver dependable results that protect your property and give lasting peace of mind.
Book your assessment today: protect your home’s structure and value
Secure your property’s value by arranging a prompt inspection that prioritises safety and compliance.
Book a free assessment today and lock in practical advice with no obligation. Pre-assessments by photo can speed up a reliable early quote and save time on site.
Call 1300 970 930 and speak to Chris for fast guidance. Email photos for a quick pre-assessment and an early quote tailored to your access and cause.
- We scope restumping services and underpinning to suit your site and timeline.
- We plan house restumping or alternative methods with clear, council‑compliant steps.
- You gain peace mind from a certified process and documented outcomes.
Choose a start time that minimises disruption. We protect your property while managing access, safety and neighbour impact.
| Service | Benefit | Next step |
|---|---|---|
| Photo pre‑assess | Faster preliminary quote | Email photos for early scope |
| Free site inspection | Accurate diagnosis | Book a time with Chris on the number above |
| Fixed quote & engineering | Cost certainty and compliance | Approve scope to schedule works |
For a technical comparison of methods, see our underpinning vs restumping difference. Get a fixed quote and schedule your time window with confidence today.
Conclusion
A clear plan and certified delivery turn foundation risk into a managed, documented project.
We stabilise your house and protect internal finishes like floors, walls and doors. Our team uses engineered underpinning and house restumping with steel or concrete stumps where required.
Movement often follows reactive soil, leaking pipes or poor drainage. We address water and drainage to prevent further damage and limit future repairs.
Certified quality gives you documented outcomes for compliance and insurance. Get a fixed quote and practical advice now. Call 1300 970 930 or book an assessment with our experts today.