Drainage in Cairns
Effective drainage solutions designed to manage water flow, prevent damage and protect your site long term.
20+ Years' Experience
Complete Civil Solutions
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Cairns Drainage
B&T Earthworks & Civil provides professional drainage services to manage water flow and protect your site from erosion, flooding and long-term damage. Whether you're building new or upgrading an existing system, we tailor drainage solutions to suit your land, soil and layout.
We install subsoil drainage, stormwater systems, trenching and pit solutions using quality materials and proper planning. From residential yards to small developments, our team ensures water is redirected safely and efficiently. Every job includes careful excavation and backfilling to ensure stable, long-lasting performance.
With more than 20 years of experience, B&T Earthworks & Civil understands how to work with different ground conditions in Cairns and the surrounding areas, where heavy rain and runoff are part of the landscape. We’ll assess your site, identify problem areas and deliver a drainage setup that works.
Need dependable drainage? Call B&T Earthworks & Civil on 0429 511 961 to get started.
Frequently Asked Questions
Why is drainage important in construction projects?
Drainage is crucial because it protects structures and land from water damage. Poor drainage can lead to soil erosion, water pooling, unstable foundations, and long-term property damage. In construction, drainage systems manage stormwater and runoff, directing it away from buildings, retaining walls, or paved areas. It also helps preserve landscaping, prevent flooding, and maintain site safety. Proper drainage reduces maintenance costs and ensures the longevity of both structural and natural elements. Whether it's a residential property, commercial site, or public infrastructure, having a well-designed and installed drainage system is key to a successful, compliant, and safe civil construction project.
What types of drainage systems are used in civil construction?
Several types of drainage systems are used, depending on site needs. Surface drainage removes excess water from the ground using gutters, open channels, or swales. Subsurface (or subsoil) drainage involves pipes buried underground to collect and redirect water from soil, which is vital for protecting foundations and preventing waterlogging. Other common systems include stormwater pits, grated trench drains, and spoon drains. These systems often work together to ensure proper water flow and prevent pooling. The choice depends on the land’s slope, soil type, rainfall levels, and surrounding structures. Professional assessment helps ensure the right drainage system is selected and installed.
How do you know if a property needs better drainage?
Signs a property needs improved drainage include water pooling after rain, soggy or dead patches in lawns, mould or mildew on walls, foundation cracks, and erosion near slopes or retaining walls. You might also notice damp odours, flooded garden beds, or water stains on exterior surfaces. These issues can lead to long-term structural and landscape damage if left unaddressed. An expert can assess the site, identify problem areas, and design a drainage solution that suits the land. Early intervention saves time and money by preventing more serious complications like subsidence, rising damp, or damage to underground services and structures.
Why Choose Us?
We take a practical, site-specific approach to every job. Here's what sets us apart:

- We design drainage systems to suit the slope, surface and surrounding layout.
- Our solutions reduce water pooling, protect foundations and improve overall ground stability.
- We work efficiently to minimise disruption during installation.
- Drainage is integrated into wider site works when needed, saving time and costs.
- Our experience in Cairns means we know how to handle tropical rainfall and runoff.
- We use well-maintained equipment for precise trenching and pipe placement.
- Safety, cleanliness and compliance are a priority on every job site.
For a drainage system that works when it matters most, contact B&T Earthworks & Civil today.
