Investigation
- Moisture mapping of affected basement walls
- Drainage and existing waterproofing review
- Dye testing, flood testing, scanning and destructive testing to investigate water-entry pathways
Project · Water ingress remediation · Woolloomooloo
Woolloomooloo Water Ingress Remediation Project NSW
SCE investigated persistent basement moisture affecting two levels of a Woolloomooloo building, reviewed likely water-entry pathways and delivered targeted drainage, waterproofing and remedial works based on observed site conditions.
Two basement levelsMoisture affected walls across Levels 1 and 2.
Persistent issueThe reported condition had continued for more than four years.
Staged investigationMoisture, drainage and waterproofing conditions were reviewed before repair.
Targeted remediationWorks addressed observed pathways, penetrations and drainage conditions.
Project overview
The building had experienced persistent basement moisture, and earlier remedial attempts by others had not resolved the underlying condition. SCE was engaged to investigate likely water-entry pathways, review drainage and waterproofing details, and develop a practical remediation plan.
Investigation considered wall surfaces, vents, joints, service penetrations, external drainage and existing waterproofing. Alongside moisture mapping and drainage investigation, SCE used dye testing, flood testing, scanning and destructive testing to pinpoint the source of ingress and inform the repair scope.
This project supports SCE's structural and remedial portfolio and the broader SCE Projects portfolio.
Project approach
Investigation established the basis for targeted drainage, waterproofing and remedial work across the affected basement walls, vents and service penetrations.
Scope, constraints and controls
The remediation was staged to separate investigation from repair and to avoid relying on surface treatment alone.
Remedial works
- Excavation and substrate preparation
- Drainage upgrades and waterproofing installation
- Treatment around vents and service penetrations
Delivery controls
- Staged, cost-controlled scope development
- Coordination around occupied-building conditions
- Protective coatings and close-out review
Remedial method
Moisture-affected surfaces were assessed and prepared before drainage upgrades, waterproofing systems and protective coatings were installed. Work around wall areas, vents and service penetrations responded to the conditions observed during investigation.
The staged approach helped SCE focus resources on likely water-entry pathways and coordinate access and sequencing without presenting a temporary surface treatment as a complete investigation.
Outcome
Dye and flood testing helped SCE identify water-entry locations and select the waterproofing method and product for each affected area.
A heavy downpour a few days after completion provided an early check of the repairs, with no water ingress observed at that time. Similar properties require their own investigation and repair scope.
Later client-requested inspection
The client subsequently asked SCE to return to investigate a separate burst-pipe issue inside the building. During that visit, SCE reinspected the earlier remediation and found no water ingress through the repaired area. This follow-up distinguished the plumbing fault from the water-entry issues addressed by the completed remedial works.
Project investigation and remediation gallery
These genuine SCE project images show observed basement conditions, drainage investigation, waterproofing around a vent and service-penetration treatment. Select an image to open the original.
Related SCE services and projects
For comparable building conditions, review SCE's Building Remedial Services, Building Water Ingress Remediation and Building Waterproofing Remediation services.
Strata decision-makers can also review Strata Services, Strata Water Ingress Investigation and Repair and Waterproofing Failure.
Location and project context
Explore SCE's Sydney CBD and Inner City services. The SCE System explains the company's approach to planning, delivery and close-out.
For related projects, explore Strata and Owners Corporation Projects and the External Restoration Sydney CBD project.
Frequently asked questions
Our water-ingress investigation questions explain the decisions behind finding the source and planning a targeted repair.
What causes basement water ingress?
Basement water ingress can be associated with failed waterproofing, poor drainage, hydrostatic pressure, cracks, defective penetrations, movement, blocked paths or incomplete previous repairs. At this Woolloomooloo project, SCE investigated multiple possible sources before implementing targeted remedial works.
How does SCE investigate water ingress pathways?
Depending on the site, investigation may include visual inspection, moisture mapping, drainage checks, flood testing, dye testing and review of walls, vents, joints and service penetrations. The purpose is to understand likely water-entry or retention pathways before selecting a repair method.
When is basement waterproofing remediation required?
Remediation may be required when damp walls, staining, repeated leaks, failed coatings, defective penetrations or drainage issues continue after basic repairs. The suitable scope depends on the water source, substrate condition, access, approvals and site constraints.
Why are drainage investigations important?
Drainage investigation helps establish whether water is being directed away from a building or retained against basement walls. Poor drainage can increase water pressure, contribute to moisture ingress and reduce the effectiveness of surface-only repairs.
Can similar works be completed in occupied strata or commercial buildings?
SCE can plan staged investigation and remedial works in occupied buildings, coordinating access, protection, drainage and waterproofing with occupants, strata stakeholders and facility managers. The delivery plan depends on the building condition and agreed scope.
Related projects and services
Explore related services, locations and completed projects.
Discuss a water ingress or waterproofing issue
Provide the property type, affected areas, known history, available reports and access constraints so SCE can discuss the investigation and remediation work required.