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Harkaway blocks often sit on undulating ground with heavier clay soils and wetter winter conditions—small errors in set-out, drainage or vapour barriers can become slab movement and damp problems once the concrete goes down.
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Our comprehensive service includes everything you need to make an informed decision about your property.
We assess the prepared building platform, including obvious low points and how the slab location aligns to the site set-out. On Harkaway’s sloping blocks, a poor pad profile can direct water back toward the slab edge and increase the chance of settlement or edge heave.
We inspect formwork condition and stability and look for issues that can affect finished slab levels and edge thickness. Correct formwork supports proper concrete cover and helps avoid slab edges that are too thin, uneven or prone to chipping and cracking.
We check that steel reinforcement appears appropriately positioned, overlapped and supported so it stays at the correct height during the pour. Steel sitting too low or touching the ground can reduce performance and contribute to cracking over time.
We review the moisture barrier for tears, gaps, punctures and poorly sealed joints, including around pipes and penetrations. In wetter months around Harkaway, membrane continuity is key to reducing rising damp, musty odours and flooring issues later.
We inspect plumbing and other penetrations for placement, protection and sealing, and check boxing-outs where relevant. Misplaced or poorly protected penetrations can cause future leaks, concrete cracking around pipes, and costly rework once the slab is poured.
We confirm the visible elements of the termite management system that should be in place prior to the pour (where specified), including clearances and preparation for barriers around penetrations. Getting this right at Stage 1 is critical because many barrier components are concealed after the slab is finished.
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Get Stage 1 – Pre-Slab (Base Stage) Inspection as part of a comprehensive inspection package
Find answers to the most frequently asked questions about our inspection service.
Book it once the formwork, reinforcement and vapour barrier are installed and the site is close to ready, but before concrete arrives. In Harkaway, weather can change quickly and pours may be brought forward, so it’s worth arranging the inspection as soon as you get a likely pour window. If you can, send us the plans and the pour date estimate when you call.
Common issues include torn or poorly sealed vapour barriers, reinforcement not properly supported, missing laps, and formwork problems that affect slab edges and levels. If drainage falls are wrong on the pad, water can pond near the slab and contribute to moisture and movement issues. Once concrete is down, repairs often involve grinding, cutting or invasive works, so catching problems beforehand saves real money.
We primarily assess what’s visible and accessible on site at Stage 1, and we’ll reference the provided plans and engineering details where possible to identify obvious mismatches. If something appears inconsistent or incomplete, we document it with photos and explain what to ask your builder or engineer. This helps you confirm the slab prep matches the intended design before it becomes permanent.
Yes. Many Harkaway sites include reactive clays and uneven ground, and cut-and-fill pads are common on sloping blocks. These conditions can increase the impact of poor moisture management, inadequate site drainage and incorrect reinforcement placement. A Stage 1 inspection focuses on the set-up details that influence how the slab performs as the ground moves through seasonal wet and dry cycles.
We check the visible, pre-pour components of the termite management system that should be in place at the base stage, especially around slab penetrations and required clearances. Harkaway’s vegetation and established trees can increase termite risk, so it’s important the barrier preparation is done correctly before it’s concealed. We’ll note what we can verify and what evidence or follow-up you should request.
Still have questions?
Get in TouchACE Building and Pest Inspections focuses on the details that matter at Stage 1—set-out, steel, membranes and moisture control—so you can push for fixes while they’re still straightforward. Call 0485 857 077.