trade live estimate @ REMEDIAL
MAGNESITE STRIPPING
CHLORIDE DECONTAMINATION
ENGINEERED SCREEDING
DATA ACTIVE

Magnesite Removal. Live Rates.

Complete topping extractions, slab decontamination treatments, concrete cancer repairs, and leveling screed applications for legacy strata subfloors. Compare transparent pricing instantly.

START MAGNESITE STRIP QUOTE
Slab Remediation Magnesite Strip
Live Estimates
Subfloor Prep Chloride Cleanse
Bidding Open
Screed Refit Engineered Level
Direct Engage
QUICK BUNDLE

Select Service Category

Pick a Service Rate to get your instant quote. 2026 Verified Pricing.

SYSTEM_DOM_INTERCEPT_2026

Service Dispatch

DIRECT LINE

Andy Kim

0433 379 576

SELECTED FOR ENQUIRY
Please select a product from the Trade Mall...

Magnesite Removal works baseline set to: 10m²

Basic Removal
PHASE 01
ID: #MAG-01
STRIP | CHIP

Basic Magnesite Removal

Chipping out old toxic topping layers in a 2-bedroom unit down to standard raw level floor base panels (10m² baseline).

$ 1,650 +GST
Slab Repair
PHASE 03
ID: #MAG-03
REPAIR | STRUCTURAL

Dust-free Add-ons

Options for dust-free grinding to prevent funitures, ceiling, wall all - serface .

FROM 24 /m²
EASY QUOTE // DO IT YOURSELF

Detal Estimate

Control your job details to Send a quote request now.

REPLY in 2-Hours | VERIFIED 2026

Get Your Live Estimate Now

LIC: Builder 283896C • ABN 34 160 847 736

Est. Base $550.00
01 Site Location & Asset Profile
02 Select Magnesite Removal Bundle (10m² Base Setup)
STRIP & CHIP METHOD

Basic Magnesite Removal Pack

Chipping out old toxic topping layers in a 2-bedroom unit down to standard raw level floor base panels.

$1,650 +GST
ULTIMATE BARE SLAB PREP

Full Deep Slab Concrete Grinding

Heavy mechanical grinding to strip out every trace of deeply embedded magnesite materials from concrete pores.

$2,400 +GST
03 Additional Magnesite & Slab Repair Services
Dust Free Grinding DUST-FREE DIAMOND GRINDING
OPTIONAL: Commercial vacuum extraction setup during slab grinding to keep living areas fully clear of dust particles.
$55.00/m²
Concrete Cancer SLAB CONCRETE CANCER REPAIR
Chipping loose spalling patches, treating rusted steel mesh bars, and filling with high-strength structural mortar.
$380.00/m
Epoxy Crack Injection STRUCTURAL SLAB CRACK INJECTION
High pressure structural liquid epoxy injection inside slab fractures to bond cracked areas back together securely.
$68.00/m
04 Client Confirmation
2026 REMEDIAL ENGINEERING SPECIFICATION

Magnesite Removal & Substrate Prep

Essential answers regarding chloride risk, concrete cancer prevention, and precision micro-grinding methods.

01 What is magnesite topping and why must it be removed from old strata units?

Magnesite is a wood-flour and magnesium oxychloride cement topping widely laid down as an acoustic leveling underlayment in mid-century apartments. Over time, or when exposed to damp conditions, it releases highly corrosive chloride ions. These chlorides leach directly into the structural slab, aggressively attacking the embedded internal steel reinforcement rods, triggering rapid rust expansion, and causing severe concrete cancer.

THE REMEDIAL FIX: We perform a low-impact Bulk Magnesite Floor Uplift followed by a specialized chloride neutralizing wash, completely stopping subsurface chemical decay before it compromises your building's structural safety.

02 What is a "thin skin" slab challenge and how do you protect high steel?

Many legacy concrete floor slabs feature a "thin skin" concrete cover, meaning the structural steel mesh sits dangerously high—often within millimeters of the surface. A standard, aggressive mechanical grinding approach will shred these vital structural metal strands. Protecting this framework requires high-resolution concrete scanning and strict physical depth limiters on all grinding gear.

THE REMEDIAL FIX: We enforce a strict 5mm Limited Micro-Grind protocol, utilizing deep-research engineering scanning to map subsurface high steel locations before any rotary diamond tools touch the floor.

03 Will the removal process cause structural cracking or damage my apartment?

Using heavy ride-on stripping machines or heavy-duty jackhammers sends severe impact vibrations radiating through old concrete, which can easily induce structural cracking in the slab below or blow out ceiling plasterboard in the unit directly underneath yours. Eliminating this risk requires setting aside the heavy plant machinery in favor of controlled, low-impact hand tools.

THE REMEDIAL FIX: Our operators execute a Low-Impact Mechanical Stripping Strategy. This method meticulously shears the bulk magnesite matrix away from the substrate manually, keeping structural floor strength entirely perfect.

04 How much does a professional magnesite extraction project typically cost?

A comprehensive, compliance-ready subsurface preparation package covers several highly specialized remedial phases. For a standard residential scope, costs split across low-impact stripping, precision micro-grinding, structural engineering mapping, and hazardous dust extraction. A typical structural substrate preparation package executes at a base estimate profile of roughly $4,600.00 total.

THE REMEDIAL FIX: Every project receives a fully itemized Build-Surety Cost Ledger. This details phase-by-phase pricing alongside clean HEPA extraction vacuum steps to guarantee full DBP-ready compliance.

Case Study:
Magnesite Removal & Floor Crack Repair

Category: 75m² Full Removal & 5mm Mechanical Diamond Grinding | 2026 Structural Update

The Challenge

An expansive 75m² strata apartment floor required complete stripping of hazardous, water-trapping magnesite overlay topping. Over decades, hidden chlorides from the topping had started attacking the underlying structural slab, causing structural floor cracks to form across the living zones.

The primary obstacle was safely clearing the subfloor without hitting high-sitting structural mesh bars. The job demanded a full-area, highly precise 5mm mechanical diamond grind combined with specialized structural crack repairs to stabilize the entire slab foundation safely.

Structural Diamond Grinding

Precision Extraction Strategy

1. 75m² Full Stripping

Carefully broke and completely cleared away the entire topping layout layer down to raw concrete substrate across all room sections.

2. 5mm Floor Grinding

Ran mechanical diamond grinders strictly restricted to a 5mm depth gauge over the whole floor plan to eliminate all residual chloride material.

3. Structural Crack Repair

Chased open all substrate cracks and sealed them using high-strength epoxy compound formulas to permanently fuse the concrete floor back together.

MAGNESITE CONTROLLED EXTRACTION PACK (OVER 75m²) ESTIMATE PRICE
Full Mechanical Stripping & Bulk Magnesite Topping Uplift (75m² Area)$5,400.00
Precision Mechanical Floor Diamond Grinding (Strict 5mm Depth Limit Entire Plan)$4,200.00
Structural Concrete Slab Crack Chasing, Cleaning & Epoxy Compound Injection Repairs$1,800.00
Chloride Neutralising Chemical Subfloor Scrub & HEPA Dust Extraction Clean$1,100.00
TOTAL SUBSURFACE PREPARATION ESTIMATE $12,500.00
"Stripping 75m² of old magnesite requires meticulous depth management. Restricting mechanical diamond grinding to 5mm protects shallow reinforcement steel wire, while structural epoxy repairs restore complete strength to the entire concrete slab foundation."

— 2026 Triangle Reference System Audit

BUILD-SURETY AUSTRALIA
National Trade & Compliance Framework
Licensed Remedial Systems & High-Precision Substrate Prep
NATIONWIDE SERVICE | ARCHITECTURAL GRADE | DBP READY
Note: PRINT E-QUOTE (Save to PDF)
Forensic View 1
2026 COMPLIANT FILE
Magnesite Removal Sydney Magnesite Specialist

Strata Unit Concrete Spalling Prevention

  • Strata 2 bedroom / Living / kitchen
  • HEPA Dust Extraction & Grinding
LIVE RATE FROM
$ 180 +GST
QUICK ENQUIRY
Forensic View 2
2026 COMPLIANT FILE
Magnesite Removal Subsidence Repair Sydney

Strata Magnesite Stripping

  • Structural Spalling Treatment from $1,650 +GST (Per repair zone)
  • HEPA Dust Extraction & Grinding
LIVE RATE FROM
$ 165 +GST
QUICK ENQUIRY
Trade Visual

Waterproofer in all area

Epping
$125 /m²
VERIFIED
Trade Visual

Concrete Driveway / Slab work

Epping
$460 /m²
VERIFIED
Trade Visual

Remedial Paint

Chatswood
$165 /m²
VERIFIED
Trade Visual

Waterproofing Basement

Epping
$420 /m²
VERIFIED