Our Work
Projects & Case Studies
Real projects, real results. Browse our portfolio of completed remedial building projects across Greater Sydney.
Category
Balcony Waterproofing & Concrete Repair
Value
$850,000
Duration
6 months
Marrickville Apartment Complex — Full Remedial Program
Marrickville, NSW
A 48-unit residential apartment block built in the 1970s required comprehensive remediation across all external elements. Works included full balcony waterproofing membrane replacement, concrete spalling repair and corrosion treatment on 96 balconies, crack injection throughout common concrete elements, and anti-carbonation protective coating to the full building facade.
Key Outcomes
Full balcony membrane replacement to AS 3740 on 96 balconies
320m² of concrete spalling repaired and reinstated
Anti-carbonation coating applied to entire facade
15-year membrane warranty secured for OC
Project completed 2 weeks ahead of schedule
Category
Strata Remedial Services
Value
$1.2 Million
Duration
10 months
Bankstown Strata Remediation — Multi-Building Program
Bankstown, NSW
A 72-unit strata scheme comprising two residential towers required a comprehensive multi-trade remedial program. Works were scoped, tendered and project-managed by Cornerstone in close collaboration with the owners corporation's strata manager. The program covered waterproofing, structural concrete repair, car park rehabilitation, podium waterproofing and full external repainting.
Key Outcomes
Car park slab waterproofing — 2,400m² of trafficked membrane
Structural concrete repair to 145 column bases and beams
Podium garden waterproofing — 800m²
OC savings of $180K versus competitive quotes
Works delivered on-budget, disruption minimised
Category
Facade Restoration
Value
$420,000
Duration
4 months
Inner West Commercial Tower — Facade Restoration
Newtown, NSW
A 12-storey commercial office building in Newtown required full facade restoration after decades of accelerated carbonation caused delamination of the external render system and exposed reinforced concrete elements. Using rope access, our team completed a full defect survey, progressive render removal and reinstatement, and application of an elastomeric anti-carbonation coating system.
Key Outcomes
Full facade defect survey completed by rope access
1,800m² of failed render removed and reinstated
Elastomeric anti-carbonation coating applied full facade
Building life extended by an estimated 25+ years
Safety risk to pedestrians fully eliminated
Category
Structural Strengthening
Value
$185,000
Duration
6 weeks
Sydenham Residential — Structural Strengthening
Sydenham, NSW
A 1960s residential building in Sydenham required structural strengthening to its ground-floor transfer slab following a change of use from retail to residential. Working closely with the structural engineer, our team installed carbon fibre reinforced polymer (CFRP) laminates to 18 beams and 6 column heads, increasing the structural capacity of the transfer elements without the need for demolition.
Key Outcomes
CFRP laminates installed to 18 beams — capacity increased by 35%
Works completed without structural demolition
Building remained occupied throughout works
Independent engineering sign-off achieved
Completed 1 week ahead of programme
Category
Crack Injection
Value
$95,000
Duration
3 weeks
Parramatta Office Building — Crack Injection Program
Parramatta, NSW
A multi-level commercial building in Parramatta's CBD experienced widespread cracking in its concrete frame, causing water ingress into basement car park levels. Our specialist crack injection team conducted a full crack mapping survey, selected appropriate epoxy resin and polyurethane injection materials for different crack types, and systematically treated 340 linear metres of cracking across 6 basement levels.
Key Outcomes
340 linear metres of cracking treated
Basement water ingress eliminated completely
Structural crack load transfer verified by engineer
24-hour flood test on basement membrane passed
Building compliance certificate issued post-works
Category
Facade Restoration
Value
$75,000
Duration
5 weeks
Leichhardt Heritage Terrace — Facade & Render Repair
Leichhardt, NSW
A heritage-listed terrace row in Leichhardt required sensitive facade restoration to deteriorated sandstone coping, corroded cast iron elements and failed cement render. Our team worked closely with the heritage consultant and local council to specify conservation-grade lime render, matching sandstone pointing and heritage-accurate paint colours.
Key Outcomes
Heritage-compliant lime render applied to full facade
Sandstone copings repaired using approved stone consolidant
Cast iron elements restored and heritage painted
Council heritage approval obtained before works
Heritage significance preserved and documented
Your Building Could Be Our Next Success Story
Contact us today for a free, no-obligation assessment and discover what Cornerstone can do for your building.