MJ Engineering Projects served as superintendent and adviser on extensive remedial works at a three-storey, eight-block complex containing 52 units in Lane Cove. Constructed with concrete columns and beams and brick-work infill, the building exhibited cracked driveways, inadequate balcony waterproofing, peeled render, façade seepage, non-conforming glass balustrades and widespread concrete spalling. The client required a remedial works programme to eliminate these defects, meet current safety standards and minimise disruption for residents.
Project background
A condition survey that used hammer sounding, cover-metre scans and moisture mapping confirmed critical problems: insufficient waterproofing, extensive concrete spalling and balustrades that failed contemporary loading rules. Accredited design practitioners converted the findings into a National Construction Code (NCC)-aligned remedial works specification. After a competitive tender, a specialist contractor was appointed, and MJ Engineering Projects supervised quality, budget tracking and progress certification.
Scope of works
- Repair concrete spalling on the façade
- Remove asbestos eaves
- Recoat all concrete elements
- Remove and replace balcony balustrades
- Waterproof and tile balconies
- Render balcony-slab edges with Quick-Wall
- Remove and replace concrete driveways
- Apply low-sheen acrylic paint to façades
- Repaint timber and metalwork
- Repair construction joints
- Apply face sealant to brick façades
Key challenges and solutions
Concrete spalling repairs
Delaminated concrete threatened reinforcement durability. The crew removed loose sections, cleaned and passivated steel, then applied polymer-modified mortar in line with the method in our concrete-spalling repairs guide. A final recoating unified appearance and protection.
Balcony waterproofing and tiling
Leaking balconies and damaged interiors below were repaired as follows; Failed toppings were stripped, a bonded sheet membrane installed and porcelain tiles laid to compliant falls. Flood tests confirmed watertightness, and records were filed under the remedial waterproofing quality plan.
Balustrade compliance
Original rails lacked safety markings and fell short of NCC impact-load clauses. All panels were replaced with laminated-glass balustrades that meet load requirements. Stainless anchor plates now sit above the waterproof layer, and folded flashings divert water away from fixings as recommended in ABCB guidance.
Asbestos eaves and driveway renewal
Asbestos-cement sheets were removed in stages under SafeWork NSW controls. Deteriorated driveways were demolished in halves and recast in 32 MPa concrete, restoring safe vehicle access while maintaining limited parking.
Resident safety and scheduling
The building remained occupied. Rolling balcony closures limited individual downtime to a fortnight, pedestrian detours were lit, and work hours followed council restrictions. Weekly bulletins via the strata manager provided clarity, a vital component of well-organised remedial works.
Quality management and cost control
MJ Engineering Projects enforced hold-point inspections, reviewed material data sheets and required sign-offs before each trade advanced. Early ordering of Quick-Wall render and low-sheen acrylic paint protected the programme from supply delays, controlling cost and time.
Conclusion
This Lane Cove project demonstrates that a structured remedial works strategy can restore safety, watertightness and visual appeal without major resident disruption. Concrete repairs are complete, balconies drain correctly, balustrades comply with current standards, and fresh coatings shield both concrete and brickwork. Renewed driveways, removed asbestos and new façade sealant round out a comprehensive upgrade that safeguards the asset for years to come.
With more than fifteen years delivering remedial works, MJ Engineering Projects offers superintendent services, NCC-aligned design and on-site quality oversight that protect property value. Read further remedial works case studies on our blog or contact our remedial works team for advice on concrete repair, balcony waterproofing or façade renewal.
