JDB CONCRETING
House & Shed Slabs Illawarra
Local, family-owned concreters delivering high-quality decorative finishes, personalised service and reliable results with clear communication across Illawarra residential projects.
No Guesswork
Start With a Solid Slab
Getting the base right is what sets the entire project up for success. At JDB Concreting, we deliver house and shed slabs across the Illawarra with a strong focus on accuracy, preparation and long-term performance. Whether you’re building a new home, installing a shed or planning an extension, we ensure your slab is level, properly reinforced and ready to support your structure from day one.
We understand that every site is different, which is why we take the time to assess ground conditions, drainage and load requirements before starting. Our owner-operated approach means we stay hands-on throughout the process, keeping communication clear and ensuring nothing is overlooked. From initial prep to the final finish, we’re focused on delivering a clean, reliable result that gives you confidence moving forward with your build. Call 0402 175 376 today to organise your slab and get your project
Need Help?
Frequently Asked Questions
How thick should a concrete slab be for a shed or house?
The thickness of a slab depends on its purpose and the weight it needs to support. Shed slabs are commonly around 100mm thick, but heavier loads or vehicle access may require additional thickness or reinforcement. House slabs are usually engineered based on soil conditions and building design, often including footings and reinforced zones. Proper planning ensures the slab meets structural requirements and performs over time.
How long before you can build on a concrete slab?
Concrete sets fairly quickly, but it needs time to gain strength before building begins. Light work may start after a few days, but most slabs are left to cure for at least 7 days before major construction continues. Full curing can take up to 28 days, which allows the slab to reach its intended strength and durability.
What preparation is needed before pouring a slab?
Site preparation is essential for a successful slab. This includes clearing the area, levelling the ground, compacting the base and addressing drainage. In many cases, a sub-base or moisture barrier is also installed. Proper preparation helps prevent future issues like cracking, sinking or water damage.
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Long-Term Strength
Built Right From the Ground Up
A quality slab needs to do more than just look good; it needs to perform under pressure over time. That’s why we follow a structured process that prioritises strength and consistency at every stage. From compacting the base and setting accurate formwork to placing reinforcement and completing a controlled pour, each step is carried out with care to achieve a stable, long-lasting result.
We also place a strong emphasis on finishing and curing, which play a major role in preventing issues like cracking or uneven surfaces. Whether it’s a house slab designed to support a full build or a shed slab built for storage and daily use, we tailor our approach to suit the purpose of the space.
With a focus on quality workmanship and ongoing improvement, we deliver slab solutions that are built to handle real-world conditions and stand the test of time.
