We provide engineered foundation repair and permanent underpinning solutions for Northern Beaches homeowners and offer a free structural assessment and fixed-price quote today.
Our licensed team has 20+ years’ experience in protecting homes from foundation movement. We diagnose causes such as clay shrink‑swell, poor drainage, leaking services and nearby excavation, then recommend the right method.
Options include concrete underpinning, resin injection, screw piling and retaining work. We coordinate engineering reports and council approvals so you get a compliant, low‑vibration repair that keeps you living at home where safe.
We work with transparency and integrity. Expect a clear scope, materials and methods before work starts. Call 1300 970 930 to speak to Chris, book a site inspection, or email photos for a quick preliminary assessment.
Key Takeaways
- We deliver engineered, permanent underpinning and foundation services for local homes.
- Licensed team with 20+ years’ experience provides council‑compliant solutions.
- Free, no‑obligation structural assessments and transparent fixed‑price quotes.
- We match methods — concrete, resin, screw piling or CFA piling — to site needs.
- Low‑vibration techniques and coordinated engineering reports reduce disruption.
Protecting Northern Beaches homes from foundation movement
Moisture-driven soil movement puts many local houses at risk of foundation damage. We explain clear signs and the steps you can take to protect your building and family.
Common warning signs: cracks, sloping floors and sticking doors
Look for step or diagonal cracks in walls and new gaps around windows. Inside, sloping floors, jammed doors or cracked tiles show differential movement.
If cracks widen after rain, or doors bind more often, book an immediate structural assessment. Early action limits secondary damage and keeps services safe.
Local soil conditions: clay shrink-swell, drainage and moisture changes
The local soil often shrinks in dry spells and swells when wet. Leaking pipes, poor drainage or nearby excavation can concentrate settlement near footings and piers.
When to act to preserve structural integrity and safety
- Recognise early signs: step cracks in walls, gaps at window edges, new cracks after rain.
- Watch sloping floors and sticking doors — these show ongoing foundation movement.
- We assess soils, drainage, trees, roof runoff and subfloor ventilation to find the cause.
- Acting early preserves the foundation, prevents further building damage and gives you a clear plan for monitoring or repair.
Underpinning Sydney Northern Beaches
We guide worried homeowners with practical, engineering-first advice for safe foundation repair. Our approach is calm and tightly focused on compliance and safety.
One clear contact explains findings and recommends the best pathway for your house. We coordinate structural engineering reports and council documentation so you know the next steps.
Calm, engineering-led guidance for worried homeowners
Underpinning strengthens existing foundations by extending them to competent bearing strata, usually with concrete piers. Screw piling is an option on tight sites or variable soil, but only when engineering confirms suitability.
We treat resin as a local ground-improvement tool. It is not used for major instability or large-scale structural damage.
- Single point of contact for clear explanations and timelines.
- Engineer-led design sets piers and sequencing for reliable load transfer.
- Evidence-based repair — we only recommend work backed by calculations.
- Written plan, monitoring periods and trigger points included.
- We prepare council-compliant paperwork and fixed-price quotes.
| Solution | Best for | Limitations |
|---|---|---|
| Concrete piers | Deep, permanent load transfer to competent strata | Requires excavation and access |
| Screw piles | Tight access sites; variable soils | Must follow strict procedures; not for all soils |
| Resin injection | Targeted void filling and local ground improvement | Not suitable for major structural instability |
For a free assessment and a fixed-price quote, book a quote or call 1300 970 930 to speak to Chris. Email photos to start a quick preliminary review.
Our assessment-first approach for safe, compliant repairs
Our first step is a thorough, no-cost assessment that diagnoses the cause of movement and maps the safest repair path. We identify drivers such as drainage failure, clay shrink‑swell or inadequate footings. That helps us match solutions to cause, not just treat symptoms.
Free no-obligation structural assessment and honest recommendations
Start with a free assessment to determine risks and the most effective process. We give clear, honest recommendations and outline any interim controls for occupant safety.
Structural engineering reports and council-compliant methods
Our team coordinates engineering reports and council paperwork from the outset. We favour methods proven for the issue — concrete for major stabilisation and CFA where low vibration is required.
Email photos for a preliminary assessment or book a site inspection
Email clear photos for a quick preliminary read, or book a site inspection today. You will receive a transparent, fixed‑price quote that lists scope, methods and materials before any work starts.
- Fixed-price quote and documented as‑built certification.
- Step‑by‑step process to protect occupants and neighbours.
- We keep you informed at every stage and explain the next steps.
Call 1300 970 930 to speak to Chris, or learn about report costs via our structural engineer report cost page for a clear guide to fees and timing.
Methods we use: concrete underpinning, resin injection and screw piling
We select engineered methods that suit your house, soil and access constraints. Our approach prioritises safety, permanence and council compliance.
Concrete piers and sectional strip works
Concrete deepens foundations to reach competent strata. This time‑proven method restores load paths and suits heavy loads or heritage footings.
We use continuous or hit‑and‑miss sequencing to match walls and structural demands. New piers are cast to design specifications and cured under QA checks.
Resin injection for local ground improvement
Resin can densify the surrounding ground and fill voids. It is useful for targeted ground work and minimal excavation.
Limitations: we do not use resin for widespread soil instability, deep foundations, or when water flow undermines reliability. Resin is not chosen for severe structural damage.
Screw piling for variable soils and tight access
Steel screw piles suit compact sites and variable soils when geotech data approves. Installation follows strict procedures to ensure load transfer and corrosion protection.
Retaining and CFA context
CFA piling offers non‑displacement, low‑vibration ground retention. It works well near sensitive structures and in groundwater.
Choosing the right solution
We match a method to soil conditions, access, structural load and your risk tolerance. Materials, curing and quality control are documented to meet engineering design and council requirements.
| Method | Best for | Key note |
|---|---|---|
| Concrete piers | Deep load transfer | Permanent, time‑proven |
| Resin injection | Local voids | Not for deep or widespread damage |
| Screw piles / CFA | Tight sites; sensitive neighbours | Low vibration, needs geotech verification |
Our aim: permanent stabilisation with minimal disturbance and a clean handover. We provide clear advice for Northern Beaches homeowners and a compliant repair plan for your foundation needs.
Beyond the footings: repairs that restore walls, floors and air quality
Once the foundation work is complete, attention turns to repairing walls, improving subfloor airflow and securing boundary structures.
We restore safety and peace of mind. Our team repairs wall cracks and closes gaps in brickwork, plaster and tiles after the foundation is stabilised.
We use crack stitching, salt‑blocking treatments and finishing sequences that respect drying times. Walls can take months to dry after moisture control. We advise on timing so finishes last.
Subfloor ventilation and moisture control
Improved subfloor ventilation reduces moisture and limits future movement in reactive ground. We install vents, fans or ventilated barriers as needed.
Retaining wall support and ground retention
Where boundaries are at risk, we support or rebuild retaining walls to protect neighbouring structures and services. CFA methods and hand piling keep vibration low near sensitive properties.
| Repair | Purpose | Benefit |
|---|---|---|
| Crack stitching & gap closure | Restore structural continuity of walls | Durable finishes; prevents water ingress |
| Subfloor ventilation upgrade | Reduce moisture and improve air quality | Limits future movement; healthier indoor air |
| Retaining wall support | Stabilise boundaries and adjacent ground | Protects neighbouring structures and services |
| Salt‑blocking & finishing schedule | Protect surface finishes after drying | Longer lasting repairs and lower maintenance |
We coordinate trades so structural and finishing works align. Most repairs use non‑hazardous, odourless methods so you can remain at home during many stages.
Aftercare: we provide maintenance guidance to protect your property and reduce recurrence risk.
Compliance, certification and insurance for complete peace of mind
Every job we complete comes with formal engineering sign‑off and traceable documentation for insurers. We are fully licensed and insured. Our process protects your family and your asset.
Fully licensed and insured with documented, council‑compliant work
We provide certified, council‑compliant methods so repairs meet local requirements. Concrete remains a dependable choice for deep stabilisation.
- Licensed and insured: documented work for every project.
- Reports and as‑built records: support insurance claims and valuations.
- Engineer sign‑off: confirms design intent and workmanship quality.
- Proven methods: we use concrete, CFA or resin where appropriate to protect nearby structures.
- 20+ years’ experience: our team focuses on lasting technical quality and integrity.
We issue clear warranties tied to the engineering scope. Certification closes the loop so you can proceed with renovations, sale or insurance with confidence.
| Certification | Purpose | Benefit |
|---|---|---|
| Engineering sign‑off | Verify design and installation | Confirms safety and compliance for insurers |
| As‑built records | Document methods and materials | Supports valuations and future works |
| Council approval | Meet statutory requirements | Reduces legal and financial risk |
| Insurance & warranties | Cover workmanship and materials | Gives long‑term protection for your building |
Timeframes, disruption and workmanship standards
From the first site visit we map a schedule that balances curing, inspections and live‑in needs. We outline expected timeframes up front so you know when key milestones occur.
Typical workflows and project durations
Typical sequence: assessment, design, approvals, site prep, staged underpinning, cure, lift or stabilise, make‑good. Most projects run to the planned timeline, including cure and inspection milestones.
Live-in works and low‑vibration techniques
Our team favours CFA piling or hand piling where low vibration is critical. These methods protect adjacent buildings and services.
- Dust control, access management and daily clean‑ups for live‑in work.
- We coordinate construction activity to keep your project on schedule.
- Materials selection and testing follow the engineer’s specification.
- We confirm bearing levels and performance targets before finishing floors and finishes.
| Stage | Typical duration | Key control |
|---|---|---|
| Design & approvals | 1–3 weeks | Engineer sign‑off |
| Staged foundation work | 1–4 weeks | Hit‑and‑miss sequencing for stability |
| Curing & inspection | 1–3 weeks | Certified inspections before finishes |
We keep you informed at every step. Updates detail any adjustments and the reasons behind them so the work finishes to certified standards.
Transparent pricing and quotes you can trust
A clear, fixed‑price quote helps you plan time and budget for the project. We give simple, written costs that list scope, materials and methods so there are no surprises.
We offer free assessments and coordinate engineering and council services where needed. Our quotes state whether resin, concrete or piling is recommended and why.
Fixed-price quotes with clear scope, materials and methods
You receive a fixed‑price quote before work starts. It lists the scope, methods and materials. We explain alternates and make‑good work so you can compare options.
What affects cost: access, soil conditions and extent of movement
- Access limits and required depth to competent soil.
- Variable soil and ground conditions underfoot.
- Building type, extent of movement and repairs to floors and finishes.
- Drainage, water flow and any risks that affect ground performance.
| Driver | Impact | Typical outcome |
|---|---|---|
| Access | Constrains equipment | Higher labour time |
| Soil conditions | Depth to bearing | Concrete piers or piles |
| Movement extent | Repair scope | Wider construction and make‑good |
We price only what your property needs. Where suitable, staged works can spread cost and manage risk. Call 1300 970 930 to speak to Chris, book a site inspection, or email photos for a quick preliminary quote and clear path for your house or homes.
Conclusion
Long-term safety comes from matched solutions, solid piers and careful moisture control.
We restore safety and peace of mind with engineered, council‑compliant solutions backed by 20+ years’ experience. Our licensed, insured team manages design, approvals and quality so your foundation repair is permanent.
Concrete piers remain the most dependable choice for deep stabilisation. Resin has limits for deep or water‑affected soils. CFA minimises vibration on sensitive sites.
If you see cracks, gaps or sticking doors, act early. Call 1300 970 930 to speak to Chris, book a site inspection or book a quote and secure your house and property on the Northern Beaches.