Balcony Repairs and Remediation

Are Your Balconies Leaking, Cracking, or Unsafe?

Balconies are one of the most common points of building failure in Sydney. Leaks, concrete spalling, loose tiles, and waterproofing breakdown aren’t just inconveniences — they’re warnings that safety, compliance, and building value are at risk. Acting early protects residents, reduces costs, and prevents future disputes.

Repair Balconies the Smarter Way – Our Approach

We don’t just re-tile balconies — we remediate the root cause and restore durability for decades.

1. Investigate First, Repair with Certainty

We use moisture testing, core sampling, and inspection of drainage details to understand the failure mechanism before any works begin.

2. Tailored Waterproofing & Repair Systems

Different balconies demand different solutions— from liquid membranes and sheet systems to screed replacement. We select systems proven to last in Sydney’s climate.

3. Integrated Structural & Waterproofing Repairs

Patching surfaces without addressing the slab or reinforcement is a short-term fix. We repair reinforcement corrosion, rebuild edges, and replace screeds alongside new waterproofing.

4. Occupant-Friendly Delivery

Balcony works happen in live buildings. We plan staging, access, and communication to minimise disruption for residents and ensure safety throughout.

5. Evidence-Backed Assurance

Every repair includes QA inspections, photo documentation, and compliance with Australian Standards. Owners and strata receive transparent proof that balconies are safe, watertight, andfuture-ready.

Basement & Negative Waterproofing

Specialised waterproofing solutions applied to the internal face of concrete walls and slabs to stop water ingress where positive-side access is impossible, such as basements, lift pits, and retaining walls.

Balcony & Terrace Waterproofing

Installation of high-performance waterproofing systems for balconies and terraces to prevent leaks, structural damage, and costly repairs — ensuring long-term protection and compliance with Australian Standards.

Planter Box Waterproofing

Specialised waterproofing systems for planter boxes to prevent water leaks, soil saturation damage, and structural deterioration, ensuring plant health while protecting surrounding building elements.

Podium & Roof Deck Waterproofing

High-performance waterproofing systems for podium slabs, rooftop terraces, and communal open spaces to protect against water ingress, thermal movement, and long-term weather exposure.

Bathroom & Wet Area Waterproofing

Installation and remediation of waterproofing systems in bathrooms, laundries, and other wet areas to protect structures from moisture damage, ensure compliance with Australian Standards, and extend the lifespan of finishes.

Sealant Replacement & Joint Remediation

Removal and replacement of failed, cracked, or deteriorated sealant in façades, windows, expansion joints, and other critical interfaces to restore weatherproofing and movement capability.

Waterproofing for Heritage Structures

Design and installation of discreet, high-performance waterproofing systems for heritage-listed and historically significant buildings — protecting against water ingress while preserving architectural authenticity.

Why Atomic is the best in Balcony Repair & Remediation

It’s not just how we build — it’s the confidence we deliver. Our results maximise value, minimise disruption, and guarantee durability.

Specialist Focus

Remedial building is all we do — not an add-on service.

Engineer & Strata Partnerships

Trusted by leading remedial engineers and strata managers across Sydney.

Premium Quality

Tier 1 standards without Tier 1 overhead.

Proven Track Record

Successful delivery across residential towers, commercial sites, heritage buildings, and insurance works.

Client Care

We prioritise minimal disruption, clear reporting, and accountability from start to finish.

Take the next step.

Let’s Build Something That Lasts

If you’d like to speak with our team, we’re ready to help.

‍Phone: Call us at 0410 515 509
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‍Email: Send us a message at hello@atomicprojects.com.au
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Frequently Asked Questions

Q1: Why do balconies fail?

A: Balconies are exposed to the harshest elements and are a common source of building defects. Failures usually occur due to:

• Waterproofing breakdown from age or poor installation.

• Structural movement or deflection causing cracks.

• Poor falls and drainage leading to ponding water.

• Incompatible patch repairs trapping moisture.

• Concrete spalling and corrosion from water ingress.

Unresolved balcony issues can lead to major structural damage and safety risks.

Q3: What does balcony remediation involve?

A: Works are tailored to defect severity and compliance needs. Typical scope includes:

• Tile and screed removal to expose substrate.

• Structural concrete repairs for spalling reinforcement.

• Falls correction and drainage upgrades.

• Installation of new compliant waterproofing systems.

• Re-tiling and finishing with compatible adhesives and grouts.

• Balustrade compliance upgrades if required.

Atomic Projects delivers full-system restorations, not short-term patch jobs.

Q5: How much does balcony remediation cost?

A: Costs depend on extent of damage, finishes, and access:

• Minor single-balcony repairs: $10k–$30k.

• Medium-sized strata complexes: $250k–$1m.

• Large multi-building projects: $2m–$5m+.

We provide clear, itemised scopes and cost plans to protect strata committees and owners from unexpected blowouts.

Q7: What warranties are provided?

A: Balcony works are backed with:

• Workmanship warranties.

• Manufacturer system warranties on membranes, adhesives, and finishes.

• Compliance packs under the DBP Act.

• Durability guarantees ensuring long-term protection against leaks and structural damage.

Q2: What are the signs that balcony repairs are needed?

A: Common warning signs include:

• Leaking into apartments below.

• Cracked tiles, grout, or render.

• Ponding or poor drainage.

• Rust staining or exposed reinforcement.

• Loose balustrades or unsafe handrails.

These indicators point to hidden issues that require professional remediation.

Q4: How long does balcony remediation take?

A: Timelines vary based on access and number of balconies:

• Single balconies: 2–4 weeks.

• Small blocks: 2–3 months.

• Large multi-storey complexes: 6–12 months staged.

We plan works to minimise downtime for residents while ensuring quality control at each stage.

Q6: What is the impact on residents and tenants?

A: Balcony remediation requires temporary restrictions on balcony use. We manage this by:

• Staging works block by block or stack by stack.

• Providing clear communication schedules.

• Daily updates to strata managers and committees.

• Dust, noise, and access control measures.

Our goal is to restore balconies safely while keeping residents informed and protected.

Q8: Who should I contact for balcony remediation in Sydney?

A: Contact Atomic Projects — we are specialists in balcony remediation that restores safety, waterproofing integrity, and compliance.

Our works ensure balconies are structurally sound, leak-free, and finished to blend seamlessly with the building.

📞 Call us: 0410 515 509 | ✉️ hello@atomicprojects.com.au

Balcony Repairs and Remediation

Are Your Balconies Leaking, Cracking, or Unsafe?

What Happens When Balcony Systems Fail?

1. Water Ingress & Structural Decay

2. Safety Hazards for Occupants & Visitors

3. Loss of Property Value