When waterproofing breaks down, water doesn’t just “seep in” — it spreads, corrodes, and damages everything it touches. The longer it’s ignored, the more destructive (and expensive) the outcome.
We don’t just seal leaks — we solve the roof cause and protect the whole property for the future..
Most failures come down to poor installation or ageing systems. Common causes include:
• Incorrect substrate preparation or detailing at junctions.
• Movement in the structure not accommodated with joints.
•Cheap or incompatible membranes and sealants.
• Blocked or inadequate drainage.
• Sun, traffic, or chemical exposure degrading the system over time.
When waterproofing fails, it quickly leads to leaks, corrosion, structural damage, and disputes.
Clear indicators include:
• Water ingress into apartments, basements, or car parks.
• Efflorescence (white salts) on walls or slabs.
• Peeling paint, mould, or damp smells in internal areas.
• Ponding or bubbling membranes on rooftops or podiums.
Tile cracking or grout failure on balconies and wet areas.These are not cosmetic issues — they’re warning signs of systemic membrane failure.
True remediation is not a patch job. It requires:
• Investigation & testing to confirm leak paths.
• Full membrane removal where systems have failed.
• Substrate rectification (screed, falls, drainage points).
• New waterproofing system installation — liquid, sheet, or combination.
• Protective finishes (tiles, topping slabs, coatings).
At Atomic Projects, every system is installed under ITPs and manufacturer specifications, ensuring DBP compliance.
Timelines depend on location and access:
• Balconies or bathrooms: 1–4 weeks per area.
• Podiums or rooftops: 2–6 months depending on scale.
• Basements & car parks: staged programs over several months.
We plan sequencing to minimise downtime for residents while ensuring full curing and compliance.
Costs vary with size, system type, and finishes:
• Small balconies/bathrooms: $10k–$50k+.
• Podium or roof membranes: $200k–$1m+.
• Basement injection/lining systems: $100k–$500k+.
We always provide itemised, transparent scopes, backed by engineer or manufacturer certification.
Waterproofing remediation can be disruptive — we manage it with care:
• Restricted use of balconies, bathrooms, or rooftops during works.
• Noise and dust from demolition and substrate prep.
• Temporary relocation in cases of wet area rebuilds.
Atomic Projects uses staged handovers, clear communication, and strict safety measures to keep disruption minimal.
Waterproofing is only as good as its certification. We provide:
• Manufacturer system warranties (10–20+ years depending on system).
• Workmanship warranties on installation.
• Defects liability periods as standard.
• DBP compliance packs including test results, ITPs, and photographic records.
This ensures owners and strata managers have a defensible record for future protection.
Contact Atomic Projects — Sydney’s remedial waterproofing specialists.
We diagnose leak paths, rebuild substrates, and install engineered, certifiable systems that protect buildings long-term.
📞 Call us: 0410 515 509 | ✉️ hello@atomicprojects.com.au