Drainage Solutions Projects

Subfloor Drainage Solutions Mosman

The Challenge

Our Mosman customer was experiencing significant damp and moisture issues in the subfloor of their home. If not taken care of properly, this problem threatens the structural integrity and increases the risk of mould and mildew.

Our Solution

Using a Cat 301.8 excavator and our team's hard work, we excavated 20 tonnes of sand and dirt along the front and side passages of the rock layer.

Our specialised drainage installation included:

Subsoil Drainage System: Our plumbers combined the power of a Siphonic Belt with an agricultural (French drain) line and PVC pipework to ensure maximum water diversion.

Advanced Filtration: After we finished the agricultural line and other pipework, we installed 20 tonnes of coarse river sand around the drainage lines to allow superior flow and drainage.

Surface Protection: We integrated a strip drain against the house's perimeter to intercept surface runoff and stormwater protection.

After our team completed this job, we left the property clean and tidy. If you are experiencing a similar drainage problem, give our professional and dedicated team a call on 1300 520 898 or fill out our online booking form.

 

 

Drainage and Moisture Control in Kyle Bay

This customer in Kyle Bay called us about a chronically wet concrete slab along the side of their house. This was causing a significant mould problem inside their home and bedrooms as well as making their carpets wet. In addition to this, there were also some underlying issues with the existing stormwater and sewer systems, including blockages, poor pipework and tree root intrusion.

For this project, our team used excavation, drainage and moisture control techniques to protect this home's concrete slab and walls from long-term water damage.

Why Does This Happen?

This type of drainage issue is common in Sydney properties that are built on dense clay soils. Clay naturally holds onto water rather than letting it drain away. When combined with a poorly designed drainage system or old infrastructure, excess water becomes trapped in and around the building. 

How We Diagnosed It

Our plumbers assessed the water flow, checked the performance of the drains and identified faults in the existing system.

On jobs like these, we typically use CCTV Drain Inspection techniques and testing to locate blockages, tree root intrusion and structural pipe issues.

Our Drainage Strategy

Our strategy was to install a subsoil and surface drain at the back and western side of the home to prevent further damage to the structural integrity of this Kyle Bay property.

This system was designed to:

• Move water away from the foundation quickly
• Allow the concrete slab and walls to breathe and stay dry
• Prevent excess water damage and stagnation during heavy rain and storms
• Separate the stormwater and subsoil drainage systems

Our Work

This drainage project in Kyle Bay included:

• Excavating trenches and removing the dense clay soil
• Installing a breathable drainage cell against the walls and slabs of the home to allow for airflow
• Installing a subsoil drainage system (aggi drain, syphonic pipe system) and a dedicated PVC line for new surface drains
• Backfilling the trenches with a mixture of sand and gravel for fast-acting drainage
• Repairing stormwater and sewer issues, including root removal
• Removed troublesome tree and replaced pavers with concrete paths to reduce water penetration

The Results

This new drainage system keeps this Kyle Bay home safe and dry, effectively draining away surface water while preventing future blockages from occurring.

If you are experiencing a tricky drainage issue like this, call our experienced team on 0488 801 008 or complete our online booking form today.

Solving Water Pooling and Flooding at a Menai Strata Property

Our drainage team were recently called to a Strata villa in Menai to investigate ongoing water pooling after heavy rains. The villa's front entrance had a set of steps leading down to the front door, creating a low point where surface and stormwater naturally collected.

Whenever it rained, water would flow down the steps and pool directly in the middle of the entryway. With no drainage system nearby and no path for the water to escape, the water built up against the door and entered underneath the threshold.

The Strata homeowners wanted a permanent drainage solution that would prevent further flooding while maintaining the appearance of the entrance.

Assessing the Drainage Problem

Several factors were contributing to the water pooling issue:

• Water flowed directly down the entry steps during rainfall
• The surrounding layout prevented water from dispersing left or right
• No surface drainage system had been installed near the doorway
• Water regularly pooled against the door threshold
• Flooding was occurring inside the villa during heavy rain events

Without proper intervention, the recurring water pooling had the potential to damage flooring, door frames, and internal finishes.

Installing a Strip Drain at the Front Entrance

To redirect stormwater away from the villa, our team recommended installing a strip drain across the base of the steps. Our plumbers carefully cut through the existing tiles and concrete slabs beneath to create a channel for the new drainage system to sit in and ran a discharge pipe to the existing stormwater sump approximately 5 metres away.

A Seamless Drainage Solution

After the job was completed, the homeowner was very happy. The final product looked original with the existing build and it eliminated the water pooling problem quickly.