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Concrete Repair & Remediation for Strata Buildings and Owners Corporations — Melbourne
Managing concrete defects in a strata building is one of the most challenging responsibilities an Owners Corporation faces. The defects are often invisible until they become urgent. The costs can be significant. And getting the repair right — with the right contractor, the right methodology, and the right documentation — directly affects the value, safety, and insurability of the building.
Remcon Group works with Owners Corporation managers, building committees, and strata professionals across Melbourne to diagnose, assess, and remediate concrete defects in residential and mixed-use buildings. We’ve been doing this for over 30 years.
Call 1300 309 452 or request a strata building assessment online.
Melbourne’s apartment stock is ageing. Buildings constructed in the 1970s through 2000s are now presenting the full range of concrete deterioration issues — and many of them are doing so all at once.
The most common concrete defects in strata buildings include:
Concrete cancer (delamination) When moisture penetrates the concrete cover and reaches the steel reinforcement, corrosion begins. Corroding steel expands, cracking and delaminating the surrounding concrete from within. It typically appears first as rust staining, surface cracking, or bubbling render — and progresses to spalling and structural exposure if left untreated. Concrete cancer is the most common serious defect in Melbourne apartment buildings, particularly in car parks, balconies, facades, and basement structures.
Spalling Spalling — the flaking and breaking away of concrete — occurs on facades, soffits, columns, beams, and balconies. Beyond the structural concern, spalling poses a direct safety risk when loose material is above occupied or trafficked areas. Insurance policies increasingly require evidence of active maintenance programs in buildings with known spalling.
Waterproofing failure Failed waterproofing membranes on balconies, podium decks, rooftop areas, and basement structures allow water to penetrate the building envelope — causing both concrete deterioration and internal water damage to common areas and private lots. Waterproofing failure is among the most common sources of strata disputes and VCAT defect claims.
Crack formation Concrete cracks from shrinkage, thermal movement, structural loading, and ground movement. The significance of a crack depends on its type, width, depth, and whether it is active or dormant. Many strata buildings carry a history of crack repairs that have been patched rather than properly treated — and have failed again as a result.
Underground car park deterioration Car parks are among the most aggressively deteriorating concrete environments in residential buildings. Exposure to vehicle traffic, tyre salts, water ingress, and poor drainage accelerates both surface wear and reinforcement corrosion. Comprehensive car park remediation programs — covering crack injection, concrete repair, joint sealing, drainage, and protective coatings — are among Remcon’s most commonly delivered strata scopes.
Concrete deterioration in a strata building is not just a maintenance issue. It affects the building in four ways that directly concern the OC committee and the owners it represents.
Safety Spalling concrete, delaminating facades, and exposed reinforcement are real hazards. A chunk of concrete falling from a balcony soffit or facade represents a serious risk to residents, visitors, and passing pedestrians. OC committees have a duty of care to maintain common property in a safe condition.
Insurance Strata insurers increasingly require documented evidence of active maintenance and remediation programs. Buildings with known concrete defects that have not been addressed — and where no remediation plan exists — are at risk of coverage limitations or claim complications. A documented repair history and current condition report is the best protection.
Levies and financial planning Concrete defects caught and treated early cost a fraction of the same defects addressed in crisis. A small concrete cancer repair on a balcony might cost $1,500–$3,000. The same defect, left for two years, can cost $8,000–$15,000 by the time structural reinstatement and protective coating are included. OC committees that invest in periodic condition assessments and proactive maintenance consistently spend less on repairs over the life of the building.
Property values Visible concrete deterioration — spalling facades, stained soffits, cracked balustrades — has a measurable impact on buyer and tenant perception. A well-maintained building commands better prices and attracts better occupants. A building with deferred maintenance does the opposite.
Remcon’s approach to strata remediation is built around three principles: diagnose first, scope accurately, and document everything.
Step 1 — Building assessment We attend site and carry out a thorough visual inspection of all nominated areas — balconies, facades, car parks, basements, common area ceilings and soffits. We produce a written condition report with photographic documentation and defect mapping. Where the extent or cause of damage is unclear, we deploy in-house NDT and 3D scanning equipment to investigate below the surface.
Step 2 — Scope of works Based on the assessment, we prepare a clear, itemised scope of works with methodology, materials, standards references, and timeframes. We don’t produce lump-sum quotes with undefined contingencies. Every line item is explained so that the OC committee can understand what is being done, why, and what it will cost.
Step 3 — Works delivery All works are delivered by Remcon’s own trained crew — not subcontracted to unknown teams. We manage access, protection of adjacent areas, and communication with building management throughout. Our wet-core injection process eliminates silica dust on site, which is a significant advantage in occupied residential buildings.
Step 4 — Testing and sign-off On completion, all works are tested — pull-off adhesion tests, post-repair photographic records, and where applicable, NDT verification. We provide a signed completion report suitable for building files, insurance records, and any future levy documentation.
Remcon delivers the full range of concrete and structural remediation services relevant to strata buildings:
Owners Corporation committees and managers need to know their contractor is compliant, insured, and properly certified. Remcon holds:
How do I know if my building has concrete cancer? Common early signs include rust staining on concrete surfaces, hairline cracks following the line of embedded reinforcement, surface bubbling or ‘tent cracking’, and small areas of spalling where concrete has already broken away. If you’re seeing any of these in your car park, balconies, or facade, a professional assessment is the next step.
Can repairs be done while residents are in the building? Yes. Remcon regularly delivers concrete repair programs in occupied apartment buildings. Our wet-core process eliminates silica dust — one of the primary safety and nuisance concerns in occupied environments. We work with building managers to schedule access, minimise noise impact, and communicate clearly with residents throughout.
Do I need an engineer’s report before engaging Remcon? Not necessarily. Remcon can carry out an initial building assessment and provide a condition report and scope of works directly. Where structural engineering input is required — for example on major structural defects or CFRP strengthening — we can recommend appropriate consulting engineers and work alongside them to deliver the repair.
How do I present repair costs to the OC committee? Remcon provides a clear, itemised scope of works with individual line items and methodology explanations — written so that committee members who are not builders can understand what is being proposed and why. We’re also happy to attend a committee meeting to present findings and answer questions directly.
How long do strata concrete repairs last? A properly diagnosed and correctly executed repair, using appropriate materials, should last 20–30 years or more. The key is addressing the root cause — not just patching the surface. Repairs that fail early almost always reflect an incorrect diagnosis or inappropriate materials selection.
What areas of Melbourne do you service? Remcon services metropolitan Melbourne and regional Victoria. We cover all inner-city, inner-suburban, and middle-ring suburbs where Melbourne’s apartment stock is concentrated — including the CBD, Southbank, Docklands, Richmond, South Yarra, St Kilda, Fitzroy, Carlton, Port Melbourne, and surrounds.
Request a Strata Building Assessment
If your building is showing signs of concrete deterioration, or you’re planning a maintenance program and need an accurate condition assessment, contact Remcon Group.
We work directly with Owners Corporation managers, building committees, and strata professionals. We’re happy to attend site, produce a written condition report, and present findings to your committee.
Call: 1300 309 452 Web: remcongroup.com.au/contact
Interested in working with us? Download a copy of our Company Profile using the below form.
