Erosion Control Sydney | Silt Socks & More
Site Compliance & Sediment Control
TERRIX provides a complete range of erosion, sediment and site-compliance services for residential construction, civil works and infrastructure projects across NSW and QLD.
In addition to silt fencing, coir logs and hydroseeding, we supply and install practical controls that manage stormwater runoff, protect drains and waterways, stabilise exposed ground and help keep sites compliant throughout construction.
Our Erosion Control Solutions
Our range of erosion and sediment control solutions includes:
- Silt Socks: Flexible, mesh-wrapped filter barriers that intercept sediment-laden runoff across slopes, drainage lines, and site perimeters.
- Stormwater Drain Filters: Purpose-built filters that fit directly into stormwater drains and pits, capturing sediment and debris before it enters the drainage network and surrounding waterways.
- Gutter Protection: Durable inlet guards that shield kerbside gutters from sediment build-up, keeping stormwater flowing freely and councils compliant with runoff regulations.
- Barrier Control: Robust sediment barriers installed along site boundaries and disturbed ground to control surface runoff, stabilise soil, and prevent sediment migration off-site.
Silt Sock Installation in NSW & QLD
Though we provide a range of sediment control solutions, our speciality is supplying and installing silt socks across NSW & QLD. A flexible, high-performance erosion-control solution, silt socks capture sediment, slow runoff, and protect waterways at civil, residential, and infrastructure sites of all sizes.
Made from high-quality, weather-resistant mesh and filled with clean gravel, our silt socks form reliable barriers that filter sediment, stabilise soil, and prevent runoff on slopes, drainage lines, and construction zones. Designed for strength, quick installation, and easy handling, they deliver dependable performance and long-lasting environmental compliance across civil, construction, and landscaping projects throughout NSW and QLD.
What Are Silt Socks?
Silt socks, sometimes referred to as silt bags, silt logs, or sediment socks, are tubular mesh sleeves filled with a filter medium such as composted material, gravel, or wood fibre. They are installed along the perimeter of construction sites, across slopes, around stormwater inlets, and along drainage lines to intercept and filter sediment-laden runoff before it leaves your site.
Compared to traditional silt fencing, silt socks for erosion control offer greater flexibility, are easier to reposition, and can be used in a wider range of site conditions, making them a popular choice for contractors and project managers across NSW and QLD.
Benefits of Silt Socks
Silt socks are great for erosion control, but more than that, they are:
- Flexible & Adaptable: Silt socks can be shaped around curves, corners, and irregular terrain, making them suitable for a wider range of site conditions than rigid sediment barriers.
- Highly Effective at Filtering Runoff: The filter medium inside each silt sock traps sediment and debris while allowing water to pass through slowly, reducing runoff velocity and protecting waterways.
- Easy to Install & Reposition: Lightweight and simple to handle, silt socks can be installed, relocated, and removed quickly and with ease.
- Help to Stabilise Soil: By slowing water flow and capturing sediment at the source, silt socks reduce soil displacement and help maintain ground stability across slopes, drainage lines, and disturbed areas.
- Inlet & Drain Protection: Silt socks are particularly effective around stormwater inlets and kerb drains, providing a simple and reliable barrier that keeps sediment out of the drainage network.
Our Additional Services
Silt Socks and
Sediment Bags
We supply and install silt socks and sediment-control bags to slow runoff and prevent soil, sediment and construction debris from entering stormwater systems.
- These flexible controls can be installed:
- Around stormwater pits and drains
- Along kerbs and gutters
- Across drainage paths and low points
- Along residential and civil site boundaries
- In locations where traditional silt fencing is unsuitable
Stormwater Drain and Pit Protection
TERRIX installs and maintains sediment controls around stormwater drains, grated pits and other drainage infrastructure.
Our services include:
- Stormwater pit protection
- Drain filters and drain wraps
- Cleaning and servicing during construction
- Additional protection following rain or changes to the site
Kerb and
Gutter Protection
We install sediment controls around kerb inlets and gutters to reduce the movement of sediment into the stormwater network.
Solutions may include:
- Silt socks (Gravel Filled)
- Sediment bags
- Coir logs
- Sandbags and water-diversion controls
Ask About a Terrix Drain Package
Erosion-Control Matting
TERRIX supplies and installs erosion-control matting to protect exposed soil while vegetation becomes established.
Suitable applications include:
- Batters and embankments
- Drainage channels
- Landscaped areas
- Disturbed ground
- Waterway edges
- Revegetation and rehabilitation areas
Erosion matting can also be combined with coir logs and hydroseeding to provide a more complete soilstabilisation solution.
Safety Barriers and
Site Delineation
We install high-visibility barriers that clearly identify restricted areas, environmental controls and active work zones.
Our options include:
- Para-webbing safety barriers
- High-visibility flagging
- Reflective flagging for low-light conditions
- Star pickets and safety caps
- Temporary work-zone delineation
- Protection around environmentally se
Site Inspections and Maintenance
Sediment and erosion controls need to remain effective throughout the life of a project—not only when they are first installed.
TERRIX provides:
- Routine site inspections
- Silt fence servicing and reinstatement
- Drain-control servicing
- Replacement of damaged coir logs and silt socks
- Maintenance after heavy rainfall
- Urgent compliance rectification
- Installation of additional controls as works progress
- Practical recommendations for improving site complianceV
Sediment & Erosion Control Products
TERRIX supplies a practical range of sediment and erosion control products for builders, contractors, landscapers and civil construction projects across NSW and QLD.
Our products are suitable for new construction sites, ongoing site maintenance and urgent compliance work. Whether you need individual products or a complete
residential builder’s pack, our team can help you select the right materials for your project.
Safety Barriers and
Site Delineation
TERRIX supplies natural coconut-fibre coir logs in all different sizes to suit residential, civil, landscaping and environmental applications.
Coir logs help slow stormwater runoff, capture sediment, stabilise exposed soil and support vegetation establishment. They are suitable for use along slopes, batters, drainage lines, site boundaries and waterway edges.
- Coir Logs Sizes: 150mm x 3m
- 200mm x 3m (popular)
- 300mm x 3m
Other sizes available on request
Silt Bags
Silt bags provide a simple and flexible way to protect stormwater drains, kerb inlets and low points from sediment and construction debris. They can also be repositioned as site access and drainage conditions change.
Suitable for:
- Residential construction sites
- Stormwater drain protection
- Kerb and gutter inlets
- Site entrances and low points
- Temporary runoff diversion
- Emergency sediment control
Available individually or in bulk quantities.
Geofabric
Geofabric can be used for filtration, separation, soil stabilisation and sediment control. Different materials and roll sizes are available depending on the intended application and project requirements.
Suitable for:
- Ground separation and stabilisation
- Drainage applications
- Landscaping and civil works
- Erosion-control projects
Contact TERRIX with your required application and quantity, and we’ll help identify the most suitable product
Residential Builder’s Packs
Our DIY sediment-control builder’s packs contain the essential materials needed to establish silt fencing and basic sediment controls around a residential construction site.
Each pack includes:
- UV-stabilised 870 mm silt fence fabric
- The required quantity of hardwood stakes
- Two empty silt bags
Materials prepared for the selected fence length
- 30 Metre Builder’s Pack Suitable for smaller residential sites, renovations, extensions and short sections of sediment fencing.
- 40 Metre Builder’s Pack A versatile option for standard residential construction sites requiring additional boundary coverage.
- 50 Metre Builder’s Pack Designed for larger residential sites or projects requiring longer sections of sediment fencing.
Request a Free Quote
Starting a new project and looking for silt sock installation in Sydney or the surrounding areas? Contact us or fill out the form below for your free quote and site assessment.
