0433 379 576
Specialist liquid and PVC sheet membrane applications. From Class 3 internal wet areas to Class 4 external balconies and planter boxes. Compare live 2026 bidding for certified protection.
START WATERPROOFING QUOTECompare verified service rates & packaging to calculate your project costs instantly. 2026 Verified Pricing • Same Day Response







Big Seasonal Savings: Secure your discounted bundle package below with instant online booking / Minimum order from 10m2. 2026 Special Rates
Complete new roof installations utilizing premium Colorbond steel or high-grade roof tiles, engineered for maximum weather durability and modern aesthetic appeal.
Targeted leak investigations, tile re-bedding, flashing maintenance, and professional high-pressure cleaning to restore weatherproofing integrity.
End-to-end structural concrete repairs and advanced membrane waterproofing systems engineered specifically for failing residential and strata balconies.
0433 379 576
Cost indext and service list index to collect your trade list, packages across NSW with direct estimate clarity.
Roofer & General Services Market Index 2026 — Industry Base Rates vs. LiveEstimate Direct Trade Savings (Ref: #209)
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Review the real-world case studies below and calculate your exact project costs instantly with our live estimate tool:
Complete professional restoration for concrete cancer, rust removal, and protective mortar rebuilding on balconies, beams, and columns.
"Andy and his team fixed our balcony spalling quickly with minimal disruption to residents. Clear communication and flawless cleanup!"
— Sarah M., Strata Committee Chair (Chatswood)
Heavy-duty structural rebuilding for severely degraded load-bearing elements, featuring full rebar replacement and high-strength micro-concrete pouring.
"Our building inspector was extremely impressed with the engineering quality of the concrete rebuilding. Highly professional remedial specialists."
— David L., Building Manager (North Sydney)0433 379 576
Calculate your project costs instantly. Get accurate pricing now. 2026 Base Rates
LIC: Builder 283896C • ABN 34 160 847 736
Concrete breakout, steel rust treatment, anti-corrosion primer, and high-build mortar patch finish.
Rebar replacement welding, zinc anode installation, and high-strength 60MPa micro-concrete pour.
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Access Scaffold & Edge Protection Certified modular scaffolding setup, compliance tagging, and safety perimeter screens for upper level execution. |
$2,250.00
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Galvashield Zinc Anodes Sacrificial galvanic protection to stop surrounding rust development. |
$95.00/Ea
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PU Deep Resin Injection Hydrophobic polyurethane injection to seal deep structural water cracks. |
$380.00/Lm
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Crack Repair by Steel Brace Work Structural steel bracket fabrication and bolting for load-bearing wall crack stabilization. |
$720.00/m
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Estimated Total
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Simple answers to leaking balconies, cracked tiles, and keeping your outdoor areas completely watertight.
Balconies deal with intense sun, heavy downpours, and structural building movement. When grout lines crack or the underlying waterproofing skin fails, rainwater sneaks right beneath the tiles. With nowhere to go, it soaks through the sub-floor slab and ruins ceilings or timber framing below.
Most balcony leaks return because of poor planning or cutting corners. We only use Licensed Waterproofers to meet strict outdoor AS4654 Standards, protecting your home from structural rot.
If the timber or concrete slab underneath is already waterlogged and rotting, a surface patch won't save it. However, if the structure is fully sound, we can use clear, deep-penetrating epoxy seals. But for long-term protection, a complete tear-out ensures the rot stops completely.
Worried about a "quick fix" failing? Our process includes a full system strip-out and a mandatory 24H Flood Test. We prove the seal is 100% watertight before a single new tile is laid.
When a balcony doesn't slope toward the drains, water sits in pools along the edges or doors. This constant pooling moisture eats through the perimeter joints, stains the brickwork, and causes severe concrete spalling (concrete cancer) on balcony edges.
Don't risk your property investment with cheap, cash-only quotes. Every balcony project is backed by a 6-Year Workmanship Warranty and verified NSW Fair Trading Licenses.
Welcome to The Remedial Builders P/L. We are Australia's trusted, specialists in Class-II: structural repairs, waterproofing, and building restoration. Driven by engineering excellence and modern techniques, we protect and restore your property's value, delivering durable solutions with complete transparency, reliability, and precision on every project across the nation..
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Compare prices and get quotes from multiple local trades to get the best deal.