Concrete cancer, leaking balconies, failed waterproofing, rising damp, cracked facades and building defects. We diagnose why it happened, fix it properly and document every step.
Remedial building is the repair of defects and deterioration in existing buildings. It is harder than new work: you are working around people, old materials and past repairs, and the visible damage is rarely where the problem started. We specialise in finding the cause and fixing it so it does not come back.

Fourteen specialist remedial services, delivered by one licensed, DBP registered builder with 40+ years on Sydney sites.

Rusting reinforcement, cracked and falling concrete, rust stains on balconies and carpark soffits.
Learn more
Leaking into the unit below, drummy tiles, rust stains, cracked edges or a loose balustrade.
Learn more
Water in the wrong place causes most of the building defects we repair.
Learn more
Bubbling paint, crumbling render and a white salty tide mark at the base of the walls.
Learn more
Cracked or drummy render, fretting brickwork, spalling concrete and failed coatings.
Learn more
Concrete cancer, leaking balconies, failed waterproofing, cracked facades and building defects in apartment buildings.
Learn more
Leaks, cracking, failed waterproofing and non-compliant work in houses and apartment buildings.
Learn more
Sandstone foundations, lime mortars, old footings and a century of repairs layered on top.
Learn more
Fretting bricks, crumbling mortar, stepped cracks and bulging walls.
Learn more
Corroded steel, spalling concrete, failing brickwork, tired facades and layouts that no longer work.
Learn more
Hotels, offices, retail, mixed-use and industrial buildings.
Learn more
Mould keeps coming back when only the surface is cleaned.
Learn more
Cracked slabs, spalling edges, exposed reinforcement, broken steps and failing structural concrete.
Learn more
Cracks in brickwork, render, plaster and slabs can be cosmetic or a sign of structural movement.
Learn moreTell us about the job. We will visit the site, assess the scope and give you a straight answer, free of charge.
Book a free site visitMost failed repairs have one thing in common: they treated the symptom. A new coat of paint over cracked render, a sealer over a leaking balcony, or a patch over rusting steel. We investigate the cause first, coordinate the engineer, and fix the problem so it does not come back.
Every job is documented with photos, product data and sign-offs, so committees, insurers and buyers can see exactly what was done.
Five clear stages. Every hold point documented, every handover signed.
We attend site, inspect the defect and its surroundings, and identify the cause rather than just the symptom. Where needed we take photos, moisture readings and cover measurements.
We coordinate a remedial or structural engineer where required and agree a written scope of works that fixes the cause, not only the visible damage.
You receive a clear, itemised written quote with methodology, materials, access, programme and any approvals. No vague lump sums.
Our crew carries out the work to the engineer's specification and Australian Standards, with progress photos and hold-point inspections at each critical stage.
Final inspection, clean-up and a handover pack: photos, product data, engineer sign-off where applicable, and your statutory warranty under the Home Building Act 1989.
A family builder with the licences, insurance and engineering discipline to do the job properly.
General Unrestricted registration (BUP4254812) for regulated Class 2 remedial work.
Remedial and structural engineers involved from diagnosis to sign-off.
Line-by-line pricing committees and owners can compare and approve.
Photos, product data, hold points and handover packs on every job.
A selection of recent remedial building work across Sydney.
View all projects
Real reviews from homeowners, strata and builders.
I couldn't be more pleased that I found Constatine and his team to assist our strata building with landscaping, waterproofing, and concrete cancer repairs. He was knowledgeable, reliable, patient, and deeply committed to achieving the best result for everyone involved. I am 100% confident that the work completed will stand the test of time. He will absolutely be my go-to moving forward, and I have no doubt we will work together again.
My partner and I own an original 1920s semi-detached home in Vaucluse, with complex sandstone foundations and multiple structural challenges caused by previous defective works. After years of delays, failed consultants, and no progress, I met Constatine and his team. From the beginning, I was impressed by the detailed review of our plans and the identification of numerous discrepancies that previous builders had missed. The team supported us through lengthy council negotiations, neighbour consultations, and COVID-related delays, even before contracts were signed. Once construction commenced, Constatine and the Meteora Constructions team were exceptional. Progress remained on schedule despite heavy rain, unforeseen structural issues, and highly complex underpinning works that previous builders had refused to undertake. They completed the work efficiently and at significantly less cost than other builders had quoted. I cannot speak highly enough of Constatine and METCON Remedial Services. It is no understatement to say that engaging Constatine and his team saved not only our project, but probably our marriage as well.
We have been undertaking a considerable repair and restoration of our 1850 residence in Darlinghurst. Constatine and his team completed outstanding work, all at a very competitive price. Every deadline was met with no increase to the original quote. Their knowledge, gathered over many years, and their incredible eye for detail significantly improved the final outcome beyond what was originally proposed. I rate them very highly and would recommend them wholeheartedly.
Common questions about remedial building work in Sydney.
Remedial building is the repair of defects, damage and deterioration in existing buildings, such as concrete cancer, leaking balconies, failed waterproofing, rising damp and cracked facades. The aim is to fix the underlying cause and restore the building's performance, not just its appearance.
For Class 2 apartment buildings in NSW, remedial work is regulated under the Design and Building Practitioners Act 2020. METCON holds DBP General Unrestricted registration (BUP4254812), so we can carry out that work and lodge the required declarations.
It depends entirely on the defect, its extent, access and the specification. A small concrete cancer patch is very different from a whole-building balcony programme. We inspect for free and provide an itemised written quote so you can see exactly where the money goes.
Yes. We regularly price and deliver remedial scopes written by independent engineers, and we can also help you engage one if you do not have a report yet.
In almost all cases, yes. We plan access, staging, noise and safety around residents and issue notices before disruptive work.
Residential building work in NSW carries statutory warranties under the Home Building Act 1989: six years for major defects and two years for other defects. We provide full documentation at handover.
Photos, a defect list or an engineer's report is enough for us to start. Free inspection, straight answer, itemised quote.
Plain-language guides from our team on the questions we are asked most.