Installing Stormwater and Subsoil Drainage Systems to Protect Property Foundations
Our team attended a property in Glenmore Park to install a complete stormwater drainage system combined with subsoil drainage, designed to manage both surface water and groundwater around the home. Poor drainage can place pressure on building footings and cause ongoing water issues if not addressed correctly.
For this project, Pure Plumbing Professionals delivered a full Drainage Solutions system, integrating surface collection, subsoil drainage, and stormwater connections to ensure water is effectively captured and redirected away from the structure.
This type of installation focuses on long-term water control, not just short-term fixes.
Why Stormwater and Subsoil Drainage Are Important
Water around a property needs to be managed both above and below ground.
Common issues that require drainage systems include:
- Water pooling on driveways and walkways
- Ground saturation near building footings
- Poor surface runoff during heavy rain
- Hydrostatic pressure building against walls
Subsoil drainage is designed to manage groundwater, while stormwater systems handle surface runoff.
Together, they form a complete system that protects the structure and surrounding areas.
Excavation and Preparation for Drainage Installation
To begin the project, our team excavated the affected areas to expose the building footings and prepare for installation.
This involved:
- Excavating along footing lines
- Cutting and removing the existing driveway channel drain
- Trenching from the left-hand walkway to the right-hand side of the property
Excavation is a key part of Drainage Plumbing, as it allows proper placement of pipes and ensures correct system layout.
Installing the Subsoil Drainage System
A subsoil (AG) drainage system was installed along the building footings to manage water within the ground.
This system included:
- AG drain lines (perforated pipes)
- Geotextile fabric to prevent blockages
- Drainage aggregate for water movement
- Builders plastic / coreflute for wall protection
- Waterproofing applied to below-ground wall sections
Subsoil drainage works by collecting water before it reaches the surface or affects the structure.
This is especially important in areas where soil retains moisture or where water collects near foundations.
At Pure Plumbing Professionals, subsoil systems are a key part of long-term Drainage Solutions.
Connecting Subsoil Drainage to the Stormwater System
The subsoil drainage system was connected into new 100mm PVC Stormwater Drainage pipework.
This ensures that:
- Groundwater is redirected away from the property
- Water is safely discharged into the main drainage system
- Pressure around the building is reduced
Proper connection between subsoil and stormwater systems is essential for effective performance.
Installing Channel Drains for Surface Water
To manage surface water, new channel drains were installed across the driveway.
These drains are designed to:
- Capture surface runoff during rain
- Prevent water from pooling on hard surfaces
- Direct water into the stormwater system
The channel drains were connected into the new pipework and supported with concrete encasement to ensure durability.
Channel drains are commonly used in Drainage Solutions where large surface areas require controlled water flow.
Extending Stormwater Pipework and Connections
As part of the installation, new 100mm PVC pipework was extended to connect with the existing stormwater system.
Additional works included:
- Connecting two existing downpipes into the system
- Ensuring all pipework was correctly aligned and supported
- Installing an inspection opening for future maintenance
Inspection openings allow easy access for cleaning and CCTV Drain Inspection if required in the future.
Supporting and Protecting the Drainage System
All pipework and channel drains were supported and protected during installation.
This included:
- Concrete support and encasement for channel drains
- Proper bedding and alignment of pipes
- Protection of wall surfaces with coreflute
These steps ensure the system remains stable and performs effectively over time.
Testing and Commissioning the System
Once installation was complete, the entire system was tested.
This included:
- Checking water flow through all drainage lines
- Confirming proper connection between components
- Ensuring no blockages or restrictions were present
Testing ensures the system is working as designed and capable of handling rainfall conditions.
What Most Homeowners Don’t Realise About Drainage Systems
Many drainage problems are caused by a lack of coordination between surface and sub-surface systems.
Important factors include:
- Surface water and groundwater must be managed together
- Drainage systems need correct fall to function properly
- Poor installation can lead to recurring issues
- Waterproofing works alongside drainage to protect structures
This is why a combined approach is used by Pure Plumbing Professionals when designing drainage systems.
When Stormwater and Subsoil Drainage Systems Are Required
These systems are typically needed when:
- Water pools around driveways or walkways
- Soil remains saturated near the home
- Drainage systems cannot handle heavy rain
- Structural areas are exposed to moisture
Installing a complete system helps prevent long-term damage and improves overall water management.
Drainage Plumbing Services in Glenmore Park
Properties in Glenmore Park often benefit from professionally designed drainage systems to manage water effectively.
The team at Pure Plumbing Professionals provides:
- Stormwater Drainage Installation
- Subsoil Drainage systems
- Channel drain installation
- Waterproofing and foundation protection
- Complete Drainage Solutions and excavation works
Each project is tailored to the property to ensure reliable, long-term performance.
If you’re experiencing drainage issues or planning upgrades, a professionally installed system can help protect your home and improve water flow.
Call 0483 915 451 to speak with our team or click Book Now to arrange an inspection.
