Concrete cancer repair in Sydney
Wardell Group specialises in repairing spalling concrete and treating exposed reinforcement in strata, commercial and residential buildings, working to an engineer's design.
Tell us about the building. We'll be in touch.
- 1We find the cause first
Diagnostic inspection and testing before any repair is scoped.
- 2Repairs to an engineer's design
Scope of works prepared by a remedial engineer.
- 3Built to that design
Repairs carried out by a registered building practitioner.
92 concrete spalls repaired at Wyndham Street, Alexandria



The owners corporation of this 114-apartment Class 2 building engaged Wardell after an engineer's investigation found concrete spalling, cracked render, waterproofing failures and unprotected slab edges. We delivered the full facade rectification from the engineer's regulated design, with residents living in the building.
- Concrete spall repairs92
- Repair mortar1,756 litres
- Programme32 weeks
- ComplianceFull DBP Act
We have worked closely with the Wardell Group … on multiple projects including large, complex remedial works within our large apartment building.
Site visits were well organised and repairs well planned and executed…. The supervision of the various repairs was outstanding, there was good communication of scheduling, and the site was cleaned up at the conclusion of each day.
Inspect. Design. Repair.
1. Diagnostic inspection
Site inspection and water testing by a building expert.
2. Scope of works
Scope of works prepared by a remedial engineer.
3. Remedial repairs
Repairs carried out to the design by a registered building practitioner.
Repair methods include micro-concrete and shotcrete repairs, protective coatings, migrating corrosion inhibitors, silane and siloxane penetrants, and cathodic protection systems.
Wardell Group, established to raise the standard of building remediation and construction.
Office 3A, 254 Wardell Road, Marrickville NSW 2204. Monday to Friday, 9am to 4pm.
Wardell Remedial Pty Ltd, ABN 95 663 972 610, NSW Licence 394344C