We provide a free, no‑obligation structural assessment and engineered repairs when you need fast, compliant solutions for settling building issues.

Our team brings 20+ years’ experience in underpinning, foundation repair and substrate stabilisation. We assess your home, identify the movement mechanism and explain simple options before recommending a permanent solution.

We use council‑compliant methods such as concrete underpinning, resin injection with laser‑monitored lifting, screw piling and subfloor ventilation. Most residents can stay in their home during works, and we monitor lifts with laser equipment and document levels before and after.

Safety, structural integrity and long‑term preservation are our priorities. You receive a transparent fixed‑price quote tied to an engineering brief and certification on completion. Call 1300 970 930 to speak to Chris, book a site inspection, or email photos for a preliminary assessment.

Key Takeaways

• We offer a free structural assessment and fixed‑price quotes for your home.
• Council‑compliant underpinning and resin injection restore foundation stability.
• Most works are non‑invasive and allow you to stay in the building.
• We document lifts with laser monitoring and supply engineering certification.
• Our focus is long‑term structural preservation, not cosmetic quick fixes.
• Call 1300 970 930 to speak to Chris and arrange an inspection.

Calm, engineering-led help for sinking and uneven floors in Sydney homes

When movement shows in your home, we bring clear engineering and steady care. We speak plainly and explain what your property is telling us.

Safety and structural integrity guide every decision. We coordinate engineering reports, offer free assessments and supply fixed-price quotes. Our licensed team documents levels, photos and test data so you can decide with confidence.

Safety, structural integrity and peace of mind for worried homeowners

Homeowners often see jammed doors, window binding, wall cracks or uneven floors before stabilisation. We separate cosmetic symptoms from underlying structural issues and outline safe, council-compliant options.

20+ years’ experience, fully licensed & insured, council-compliant methods

• We listen and explain what your home needs.
• We liaise with engineers and design for local soils and drainage.
• Many treatments, including resin injection underpinning, are non-invasive and fast curing.

Call 1300 970 930 to speak to Chris, book a site inspection, or email photos for a preliminary review. We aim to restore your home’s function and give you lasting peace of mind.

fixing sinking floors sydney: what it means for your home’s structure

Uneven or bouncy surfaces rarely start as cosmetic faults. They show how load transfers to the foundation and reveal the building’s true condition.

We identify whether the issue is an isolated slab settlement, failing piers under a suspended floor, or wider strip footing movement. Diagnosis separates slab behaviour from wall movement so we target the real cause.

Our role is to preserve structure and restore safety through engineered remediation. We do not offer short-term patches. Every plan is engineering-backed, council-compliant and certified on completion.

• Uneven surfaces often mean load isn’t transferring correctly to the foundation.
• We check if a slab-on-ground, infill slab or suspended system is affected.
• Level mapping, wall and crack inspections, plus door and window checks, pinpoint movement patterns.
• We monitor to tell if subsidence is active or historic and find moisture or plumbing drivers.
• Then we match the remediation to the mechanism for lasting stability and serviceability.

We restore structural safety, not just appearances. You receive a clear engineering plan that protects your home and maintains long-term stability.

Clear signs your floors and foundations need attention

Early signs of structural movement are often subtle, but they tell a clear story about your home’s condition. We help you read those signs calmly and prioritise safety. We will explain what can wait and what can’t.

Uneven or bouncy floors, cracked walls, sticking doors and windows

Small changes can point to active problems. Uneven or bouncy floors suggest changing support under the floor system. Doors and windows that stick usually match areas of differential settlement.

Gaps, sinking concrete slabs, sloping rooms and widening cracks

• Stepped cracks through brickwork or widening cracks show active movement.
• Gaps under skirtings or between benchtops and walls are early clues.
• A marble rolling or toys gathering at one wall reveals a slope and level change.
• Sinking concrete around the house points to soil loss or softening.
• Recurrent plaster repairs that reopen usually mean ongoing movement, not paint.

We measure and monitor to separate seasonal change from structural failure. If you see these signs, book a free assessment and a foundation failure review.

Why floors sink in Sydney: soil, moisture and load factors

Understanding soil behaviour explains why parts of a property drop or heave over time. We describe common causes so you can act decisively.

Reactive clays, leaks and poor drainage causing subsidence

Reactive clay belts around Sydney swell when wet and shrink when dry. That cycle stresses foundations and causes uneven movement.

Leaking pipes and poor drainage wash fines from under concrete slabs and soften the bearing ground. That leads to local subsidence and visible cracks.

Trees, nearby excavation and added extensions increasing movement

Trees draw moisture and can cause clay to shrink. Roots also disturb the bearing layer and create voids.

Excavation next door removes lateral support. Added rooms or upper levels can overload weak ground and trigger settling.

Slab-on-ground vs suspended floors: different failure mechanisms

Slab systems often settle differentially; infill slabs may move independently of perimeter walls. Suspended timber floors suffer pier or stump movement instead.

• Prevention: check plumbing and improve drainage.
• Control: manage trees and plan loads before adding rooms.

We design fixes that address both cause and consequence to reduce recurrence of these problems.

Our stabilisation methods tailored to Sydney conditions

We match each property to a stabilisation method that suits local soils, access and load. That ensures a durable, engineered outcome and minimal disruption to your home.

Concrete underpinning for long-term load transfer

Concrete underpinning casts new footings beneath the existing foundation to transfer load to firmer ground.

It suits heavy walls and masonry where long-term load transfer is critical. Works are engineered and council‑compliant with certification on completion.

Resin injection to densify soils and re-level slabs with minimal disruption

Resin injection uses small injection points to fill voids and compact weak soils beneath concrete slabs.

Laser monitoring controls lift and keeps the job precise. The resin cures fast, so areas can often be used soon after works finish.

Screw piling for deep, reliable capacity where soils are weak

Screw piles are steel piles that reach stable strata when near‑surface ground is poor.

They are ideal near services or boundaries where excavation is limited. We often blend methods across a property for the best result.

• All works are engineered, council‑compliant and documented for your records.
• We prioritise minimal disruption and clear communication during the job.
• These solutions restore stability to foundations and protect your floor system long term.

Complementary repairs that restore function and finish

With structural stability in place, we deliver measured repairs that bring your property back to use.

Wall crack repairs and re-levelling for doors and windows

Many cracks close once the structure is stabilised. Where they remain, we carry out targeted wall repair so cosmetic splits do not re-open.

We re-level doors and windows so they open and close smoothly. We align skirtings, benchtops and joinery after work finishes.

Subfloor ventilation and retaining wall support to prevent recurrence

Controlling moisture stops the cycle that causes movement. We add or upgrade subfloor ventilation under timber floor systems to manage damp and reduce soil change.

Where soil pressure has contributed to movement, we design retaining wall support and local grouting to restore bearing. You select only the services you need.

• We re‑level doors and windows for reliable operation.
• We repair wall cracks after stabilisation to avoid re‑opening.
• We improve subfloor ventilation to control moisture under the floor.
• We support retaining walls and grout local voids to restore bearing.
• We coordinate trades to finish efficiently and neatly.

We document before and after levels for your records and give clear care guidance so the repair results last. Our team only recommends what your house needs.

The Underpinning Sydney process: precise, transparent, council-compliant

Our process focuses on measured assessment and transparent decisions at every site visit.

Free, no‑obligation assessment. Book a visit and we confirm scope and safe access. We capture level surveys, crack maps and moisture notes to form an honest diagnosis.

Engineering coordination and fixed‑price quoting

We brief an engineer and coordinate the structural report for you. You receive a council‑compliant, fixed‑price proposal tied to the design and certification.

Non‑invasive delivery and measured results

Our approach uses non‑invasive methods where possible. Many homes stay occupied during works thanks to fast‑curing resin and laser‑monitored lifts.

We protect finishes, keep the site tidy and maintain safe access.

• We schedule to suit your family and neighbours.
• We monitor with lasers and record measured results each day.
• On completion you receive photos, level logs, certification and a simple maintenance plan to protect the foundation.

Why choose us over quick fixes

We prioritise long-term outcomes over quick cosmetic patches on every property we assess.

We are fully licensed and insured with more than 20 years’ experience. Our team delivers council‑compliant methods and laser‑monitored lifting to control movement precisely.

We do real work for lasting stability, not short-term cosmetic cover‑ups.

Local case data shows that non‑invasive, laser‑monitored lifts reduce disruption and give predictable results when used for suitable soils. We explain trade‑offs and match services to your access and structure.

• We design for permanence and avoid unnecessary repairs.
• We show measured data so you see real results, not promises.
• No upselling: we recommend only what your home needs.
• We supply certification and documentation for compliance and resale.
• Our team balances budget, disruption and long‑term stability on every project.

For targeted options such as pinning foundations, we explain how the method suits your soil and structure. Your peace of mind and the integrity of your foundations are our priority.

Costs, timeframes and what to expect on site

We explain how soil, access and footprint shape the job duration and cost. You get a clear, fixed‑price quote and a simple schedule before we start.

Minimal disruption solutions with fast curing and immediate re-use where suitable

Resin injection jobs often finish within hours. The resin cures quickly so many areas return to use on the same day.

Underpinning and piling take longer. Excavation and concrete curing add to the time on site for larger projects.

• We outline expected time for each area and any staged works.
• We protect gardens, tidy daily and limit noise where possible.
• You see level readings before, during and after the process.
• We clarify contingencies and access needs up front.

We sequence works to control movement and protect your house. Our process includes level surveys, documented results and a council‑compliant certificate on completion.

Ready to safeguard your home? Call 1300 970 930 and speak to Chris

Speak with our specialist team today to book a prompt site inspection and get clarity. We offer a fast, no‑obligation structural assessment for your house. Email photos for a preliminary view and we will outline safe options.

Book a site inspection or email photos for a preliminary assessment

We schedule a convenient visit and confirm what to check first. Our process uses laser‑monitored re‑levelling and non‑invasive methods to keep disruption low.

• Speak directly with our team who understands local foundations and common issues.
• Email photos and a short description for a fast preliminary view of the problem.
• We book a site visit, prioritise areas like stuck doors or sloping floors, and explain next steps.
• Receive a fixed‑price scope tied to an engineering report and compliant certification.
• We explain live‑in options, resin injection where suitable, and how we minimise downtime.
• We answer questions about warranties, repair timelines and past projects, and schedule promptly.

Call 1300 970 930 now and speak to Chris. We will guide you through the job, book the inspection and protect your home with clear, engineered services.

Conclusion

Protecting your home begins with an honest, engineered assessment and a plan that lasts.

We diagnose movement, map levels and target the cause so subsidence risks are reduced. Our approach matches method to ground and structure for durable results.

We use resin injection, underpinning or piling where the engineer recommends them. Works are council‑compliant, monitored with laser levels and documented for your records.

We repair what matters, restore floors and walls, and give you a fixed‑price quote tied to certification. Book a free assessment today.

Call 1300 970 930 and speak to Chris to safeguard your home with experienced, permanent solutions and clear, measured outcomes.