French Drains and Subsurface Drainage Wollongong

French Drains For Groundwater and Landscaping Drainage Designs

Waterlogged lawns, rising damp, and constant wet soil can ruin landscaping and weaken building foundations. These issues are often caused by groundwater that sits below the surface and cannot drain away naturally. The solution is a properly designed subsurface system, most commonly a French drain.

At CS Plumbing & Drainage Services, we specialise in French drains and subsurface water control systems across Wollongong and the Illawarra.
With more than 35 years of drainage expertise, we design and install custom solutions that move water away from your property, keeping your lawns dry, your footings protected, and your home safe from long-term water damage.

What Is a French Drain?

A French drain is a trench filled with gravel containing a perforated pipe and permeable fabric to prevent soil and other particles from entering and blocking the pipe. It collects and redirects groundwater away from problem areas. The pipe sits on a slope, allowing water to flow out to a safe discharge point such as a stormwater system, pit, or garden soakaway.

French drains are an effective, long-term solution for:

• Wet, soggy lawns that never dry out
• Rising damp in walls or foundations
• Gardens or retaining walls affected by waterlogging
• Driveways and paved areas with pooling water
• Subfloors and basements prone to dampness

Our French Drain Services

When Do You Need Drain Excavation?

• Repeated blockages despite jetting and relining
• Cracked or collapsed pipes on CCTV inspection
• Ground movement or subsidence affecting drains
• Ongoing tree root invasion in older clay pipes
• Poorly laid or undersized original pipework

If you’ve been dealing with recurring blockages or unexplained drainage issues, excavation may be the permanent solution.

Why Wollongong Locals Trusts CS Plumbing for Drainage Work

• Licensed, Experienced & Equipped for Earthworks: We’re not just plumbers,we’re drainage specialists with excavators, trenching tools, and deep local soil knowledge.

• Compliance & Council Ready: We ensure all stormwater and sewer connections meet Wollongong City Council and NSW plumbing code standards—with documentation to match.

• Precision Drain Repairs & Diagnostics: Using CCTV drain cameras and flow assessments, we locate issues with pinpoint accuracy minimising guesswork and site damage.

• Long-Term Drainage Solutions, Not Band-Aids: We don’t just clear blockages and we correct gradients, realign pipes, and install prevention systems so the issue doesn’t come back.

• Emergency Plumber 24/7: Drains don’t wait for business hours. We’re available around the clock for urgent drain work anytime, anywhere in Wollongong.

Contact Wollongong’s French Drain Specialists

If you’re struggling with soggy lawns, rising damp, or constant pooling water, a French drain may be the solution. Our licensed drainage team installs systems that protect your home, improve your landscaping, and give you peace of mind in every storm.

Get in touch with CS Plumbing & Drainage Services