Home Services Civil & Structural Underpinning Sydney
/ Underpinning · Sydney

Stabilising
your
foundations.

We assess, engineer, and stabilise foundations for homes and commercial buildings across Sydney. Reactive soils, subsidence, tree root damage, load increases. Engineered solutions — not temporary fixes.

40+ YRS
Building Sydney
ENGINEER
Led & certified
FREE
No-obligation quote
/ Underpinning · On site
Foundation stabilisation works · Sydney
Licensed NSW Builder Engineer-Designed Underpinning Mass Concrete Underpinning Screw Pile Systems Resin Injection Specialists Foundation Restumping Fully Documented & Insured Free On-Site Assessments Licensed NSW Builder Engineer-Designed Underpinning Mass Concrete Underpinning Screw Pile Systems Resin Injection Specialists Foundation Restumping Fully Documented & Insured Free On-Site Assessments
/ When foundations move

The ground shifts.
Your building shouldn't.

Sydney's reactive clay soils expand when wet and shrink when dry. Add mature trees drawing moisture, poor drainage, or increased building loads — and foundations start moving. Doors jam, walls crack, floors slope. These aren't cosmetic issues — they're signs your building has lost its base.

METCON carries out underpinning across Sydney, working with structural and geotechnical engineers to assess the cause of movement, design the correct underpinning solution, and execute it to specification. Every underpinning project is engineered, documented, and certified.

Whether it's a single pier under a settling corner or a full perimeter underpin on a heritage terrace — the approach is the same: proper engineering, quality execution, full documentation.

Book a free assessment or call 0415 840 500
/ Six signs your foundations need attention
Cracks in brickwork wider than 3mm
Stair-step cracking in masonry is the most common visible sign of differential foundation settlement.
Doors and windows that won't close properly
Frame distortion from foundation movement shows up as sticking, jamming, or gaps around openings.
Sloping or uneven floors
A floor that wasn't always on a lean usually means one part of the foundation has dropped.
Gaps between walls and ceiling or floor
Separation at junctions indicates the structure is pulling apart due to differential settlement.
Cracked or heaving concrete slab
Reactive soils pushing up or collapsing under the slab create visible cracking and unevenness.
Visible gaps at the base of external walls
Daylight visible under the bottom course of brickwork means the footing has moved away from the wall.
Spot one of these? Send us a photo — we'll tell you whether it needs monitoring or immediate underpinning.
Email photos
/ What we deliver

The right underpinning
method for your site.

Every foundation is different. We match the underpinning method to the soil conditions, building type, and engineering requirements.

01
Mass Concrete Underpinning

The traditional method. Sequential excavation beneath existing footings and placement of mass concrete to extend the footing to a stable bearing stratum. Reliable and well-proven.

02
Screw Pile Underpinning

Steel screw piles driven through unstable soil to reach load-bearing ground. Ideal for reactive soils, minimal vibration, and less disruption to the existing structure.

03
Resin Injection Stabilisation

Expanding polyurethane resin injected beneath footings to fill voids, compact soil, and re-level the structure. Non-invasive, fast cure, suitable for lighter structures.

04
Pier & Beam Underpinning

Concrete piers with reinforced beams designed to redistribute building loads to stable ground. Used where conventional underpinning isn't practical.

05
Foundation Restumping

Replacement of deteriorated or failed timber or concrete stumps with new engineered supports. Common in older Sydney homes with subfloor access.

06
Drainage & Root Management

Addressing the cause of foundation movement. Subsurface drainage, root barriers, and moisture management to prevent future settlement.

/ Our process

Measure twice.
Underpin once.

Every underpinning project follows our structured five-step process. Engineer-led, fully documented, and certified on completion.

01
Step 01
Site Inspection

We attend site, inspect the building for signs of movement, document damage with photos and level surveys, and assess likely causes. This becomes the brief for engineering.

02
Step 02
Engineering Assessment

A structural engineer (and geotechnical engineer where needed) reviews the findings and designs the underpinning solution. This specification defines the method, depth, and sequence.

03
Step 03
Underpinning Plan

We develop the full scope of works from the engineering specification — methodology, staging, access requirements, materials, and a clear, itemised quote.

04
Step 04
Execution On Site

Our team carries out the underpinning in strict sequence per the engineer's specification. Work is documented at every stage with photos and inspection records.

05
Step 05
Certification & Handover

On completion, the structural engineer inspects and certifies the work. You receive full documentation for your records, council, insurance, or future sale.

/ What you get
A stable foundation —
and proof it's been done right.

Engineering reports, level surveys, photos at every stage, and certification on completion. Critical for insurance, council compliance, and property resale.

/ Why choose METCON

Sydney's
underpinning
specialists.

Most builders guess at foundations. We engineer them. Every underpinning project is led by qualified engineers, documented end-to-end, and certified on completion — so your building stays stable for good.

Engineer-Led

Every job is designed and certified by a qualified structural engineer.

Geotechnical Informed

We coordinate soil testing to ensure the underpinning method suits your site.

Licensed Builder

Meteora Constructions Pty Ltd — fully licensed in NSW with all required insurances.

Honest Quoting

Itemised, fixed-price quotes. No surprise variations halfway through the job.

Minimal Disruption

Staged works planned to keep your home liveable or your business running.

40+ Years Experience

Hands-on Sydney building experience going back to the 1970s.

/ Where we work

Sydney-wide underpinning services.

We service all of Sydney and surrounding regions — from harbourside terraces to outer-west estates and everything in between.

Mosman Manly Cremorne Lane Cove Chatswood Hornsby Parramatta Strathfield Burwood Concord Hunters Hill Drummoyne Five Dock Leichhardt Newtown Surry Hills Paddington Bondi Randwick Coogee Maroubra Sutherland Hurstville Kogarah Cronulla Engadine Penrith Liverpool Campbelltown Wollongong Central Coast + Greater Sydney
/ Sydney coverage
Servicing Sydney metro & surrounding NSW regions
/ Foundation concerns? Let's take a look

Don't wait for
the cracks to grow.

Foundation problems only get worse with time. Send us photos of the damage, and we'll tell you whether you need underpinning or just monitoring. No pressure, no sales pitch — straight talk from people who actually build.

Back to Civil & Structural
Phone
0415 840 500
Direct line — speak to a builder
Email
info@meteoraconstructions.com.au
Send photos and we'll respond personally
Response time
Within 1 business day
Most enquiries answered same-day
Service area
Sydney & Greater NSW
On-site assessments anywhere in metro Sydney
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