Concrete cancer spreading? We treat the cause — not the surface.
Class 2 registered concrete repair for Sydney strata and commercial buildings. Concrete cancer, spalling and cracking — we remove the failed concrete, treat the corroding steel behind it, and reinstate to last. ACRA-standard, engineer-directed, warrantied in writing. $20M+ delivered.
No obligation. We respond within 24 hours. Defects inspected within 48.
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The concrete repair quote is triple the patch quote. Watch which one's actually dearer.
The patch price treats what you can see. The repair price treats the corroding steel underneath — which is why it's bigger, and why the patch blows off next to itself in a year or two and you pay again, with access costs on top. In two minutes, our founder shows you why the big number is usually the cheap one.
Falling apart. Solid again.
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A registered builder calls back within 5 minutes, 7am–5pm weekdays.
Prefer to talk now? 0410 515 509
Spalling means the steel is corroding. It only gets worse.
Once concrete cancer starts, it doesn't stop — the steel rusts, expands, and pushes more concrete off the slab. Above a walkway or carpark, that's a falling-material safety risk, not just a repair. Every month it's left, the corrosion spreads further into the structure and the scope grows. The cheapest time to treat it was when the first patch popped. The second cheapest is now, before your AGM has to fund a bigger one.
⚡ Spalling above a walkway or carpark? Urgent make-safe available.Why our concrete repairs don't blow off again.
A patch over corroding steel buys a year. Treating the cause lasts. Here's the difference.
The proof is in the projects.
Real Sydney concrete repairs. Real defects. Real numbers. Verify any of them.
Strata balconies — Randwick
Steel corrosion and spalling had compromised the balcony slabs — water tracking through voids and the rebar rusting behind the concrete. They'd been patched twice and kept failing. We broke out to sound substrate, treated the reinforcement, rebuilt with high-strength repair mortar, and sealed it with a protective coating system built for coastal salt air. Six weeks.
"The balconies had been patched twice and kept failing. They stripped them back, cleaned the steel, and rebuilt them properly."
— STRATA MANAGER, RANDWICK
Mid-rise strata — Killara
A root-cause investigation traced concrete cancer and cracking through the internal slabs to magnesite topping — so a full slab remediation was needed to restore the structure. We removed the drummy concrete, treated and replaced corroded steel, and reinstated with Sika repair mortar under the direction of a Class 2 Design Practitioner. Residents stayed in place the whole time.
"Residents stayed in place the entire time — the staged works kept the building safe and the disruption minimal."
— COMMITTEE MEMBER, KILLARA
Residential pool — Vaucluse (earlier project, below current minimum)
During a renovation, a structural engineer found active concrete spalling at four locations in the pool structure. We removed the drummy concrete, applied anti-corrosion treatment to the reinforcement, and reinstated every patch with structural repair mortar. Once cured we rendered the surface flat, ready for the owner's waterproofing and tiling — three weeks, residents kept informed throughout.
"Spalling fixed across four pool locations and the render left ready for our tiler. Professional, tidy, and they kept the other residents informed the whole way through."
— OWNER, VAUCLUSE
Straight answers on price.
This industry hides its numbers. We don't. Here's a realistic range before you speak to anyone.
Fixed price, before we start.
After a site assessment you get a line-by-line, engineer-checkable scope your committee can approve — fixed price, fixed timeline, no surprise variations once the concrete is opened up.
We only take strata & commercial concrete repair projects from $100K.
Warrantied in writing. Verify everything.
Most concrete repairs fail again because the last contractor patched over corroding steel — and walked away with no warranty. We don't.
We'd rather you check than take our word for it.
We're a fit for some buildings, not all.
This is for you if…
- You manage a strata or commercial building in Sydney
- You have spalling, cracking, drummy concrete or concrete cancer
- The project is $100K or more
- Your committee wants documentation and a real warranty
- Residents need to stay in place during works
Probably not us if…
- It's a single-dwelling home or a small one-off patch
- You want the cheapest patch, not a lasting repair
- The job is under $100K
- You need work outside Sydney
You'll deal with the builder, not a call centre.
I started Atomic Projects because I was tired of watching committees pay to patch spalling that needed the steel treated. Concrete cancer doesn't stop on its own — patch the surface and ignore the rebar, and you'll be funding it again next year. Send me photos of where it's spalling and I'll tell you straight how far it's likely gone.
From first call to fixed quote — no mystery.
Start with a conversation.
Repairs that stop the corrosion for good — engineer-directed, warrantied in writing. Book a free assessment or a 15-min call.
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What your committee will want to know.
Is the spalling just cosmetic, or is it serious?+
We've already had it patched and it came back. Why?+
Is it cheaper to act now or wait?+
There's concrete falling near a walkway — can you act fast?+
Are you registered, and is the work engineer-directed?+
Your concrete deserves better.
Spalling, cracks or concrete cancer? We'll investigate, confirm the extent, and give you a fixed-price repair scope — free, no obligation.
Book Your Free Assessment