Commercial and Strata Drainage Wollongong

Large-Scale Drainage Solutions for Commercial and Shared Properties

Commercial and strata properties place far greater demand on drainage systems than standard homes. Car parks, industrial yards, shared driveways, landscaped common areas, and roof catchments all generate high volumes of water that must be managed correctly to prevent flooding, erosion, and compliance issues.

At CS Plumbing and Drainage Services, we design, install, and maintain commercial and strata drainage systems across Wollongong and the Illawarra.
With over 35 years of experience, we deliver robust, compliant drainage infrastructure that protects buildings, tenants, and assets while meeting council and NSW plumbing requirements.

Commercial and Strata Drainage Services We Provide

• Stormwater Drainage for Commercial Sites
  We install and upgrade stormwater systems for warehouses, factories, retail centres, and industrial yards. This includes pits, channels, pipework, and discharge systems designed to handle large runoff volumes.
• Car Park and Hardstand Drainage
  Poor drainage in car parks leads to flooding, surface damage, and safety hazards. We install heavy-duty grated drains, trench drains, and underground pipework suited to vehicle loads and constant use.
• Strata Common Area Drainage
  We work with strata managers to resolve drainage issues in shared gardens, driveways, basements, and podium areas. Our systems reduce water pooling, soil movement, and ongoing maintenance costs.
• Subsurface and Groundwater Drainage
  For sites affected by groundwater or rising damp, we design subsurface drainage systems including French drains to relieve pressure and protect footings and retaining walls.
• Drain Pipe Replacement and Upgrades
  Older commercial drainage systems are often undersized or deteriorated. We replace drainage pipes when stormwater and sewer lines fail, with modern heavy-duty piping designed for current compliance and load requirements.
• CCTV Inspections and System Assessments
  We conduct CCTV drain inspections and flow assessments to identify defects, capacity issues, and non-compliant installations before recommending corrective works.s.

Our Drain Pipe Replacement Services

• CCTV Inspection and Diagnosis
  We inspect existing pipework to determine the exact cause and extent of damage. This allows us to replace only what is necessary and avoid unnecessary excavation.
• Full Pipe Replacement
  Where pipes are beyond repair, we excavate and replace them with modern PVC or equivalent drainage materials designed for current flow requirements and soil conditions.
• Pipe Upsizing and Capacity Upgrades
  In many cases, older drains are simply too small. We upgrade pipe diameters and correct gradients to improve drainage performance and prevent future backups.
• Stormwater and Sewer Pipe Replacement
  We replace both stormwater and sewer lines for residential, strata, and commercial properties, ensuring correct separation and compliance with NSW plumbing regulations.
• Integration with Existing Drainage Systems
  New pipework is seamlessly connected to existing pits, stormwater systems, or approved discharge points to ensure the entire system functions correctly.

Why Commercial Drainage Requires Specialist Design

Commercial and strata drainage must account for:

• High roof catchment areas
• Vehicle and forklift traffic
• Shared infrastructure across multiple tenancies
• Soil movement and load-bearing requirements
• Local council discharge conditions
• Ongoing access for maintenance and compliance

Poorly designed systems lead to flooding, surface failure, tenant complaints, and costly rectification work. Our approach focuses on durability, compliance, and long-term performance.

Compliance and Council Considerations

All commercial and strata drainage systems must comply with:

• NSW plumbing regulations
• Local council stormwater requirements
• Approved discharge methods and locations
• Safe separation of stormwater and sewer systems

We ensure drainage works are installed to code and suitable for inspection, documentation, and long-term asset management.

Why Strata Managers and Businesses Choose CS Plumbing

• Commercial Drainage Specialists: We are equipped for excavation, trenching, and large-scale installations.
• Minimal Disruption: We plan works to reduce downtime and tenant impact.
• Accurate Diagnostics: CCTV inspections and system assessments prevent unnecessary work.
• Long-Term Solutions: We design systems to reduce future maintenance and flooding risks.
• Local Experience: Decades of drainage work across Wollongong and the Illawarra.

When to Engage a Commercial Drainage Specialist

• Repeated flooding in car parks or common areas
• Stormwater backing up during moderate rain
• Cracked or sunken surfaces caused by water movement
• Ongoing drainage complaints from tenants
• Council or compliance concerns
• Planned site upgrades or refurbishments

Early intervention prevents damage, reduces liability, and protects the value of your property.

Contact Wollongong’s Commercial Drainage Experts

Whether you manage a strata complex, operate a commercial facility, or oversee an industrial site, our team provides reliable, compliant drainage solutions tailored to your needs.

Get in touch with CS Plumbing & Drainage Services