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Notting Hill blocks often sit near busy arterial roads and mixed-use areas where fill, drainage paths and service trenches are common—checking the base stage before concrete helps prevent movement, moisture issues and expensive rework.
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Our comprehensive service includes everything you need to make an informed decision about your property.
We check that the building platform is appropriately cleared, levelled and prepared, including visible soft spots, uncontrolled fill and areas that may need further compaction. This matters because slab performance depends on uniform support—poorly prepared subgrade can lead to cracking and differential movement.
We assess formwork set-out, straightness and stability, plus slab edge rebates and thickenings where visible. Correct formwork reduces the risk of out-of-tolerance slab sizes, uneven edges and costly adjustments to frames, cladding and brickwork later.
We inspect reinforcement placement, laps, trench mesh where accessible, and that bars/mesh are properly supported on chairs so steel doesn’t end up sitting on the ground. Correct cover and spacing are critical for strength and durability and help avoid future cracking and corrosion.
We check the membrane for continuity, overlaps, penetrations and damage, including taping and detailing around pods and slab penetrations where present. A well-installed barrier reduces moisture migration through the slab, which helps protect flooring, adhesives and internal finishes.
We review slab penetrations for plumbing and electrical where visible, looking for correct positioning, sleeving where applicable and sensible spacing from edges and beams. Fixing mislocated pipes after the pour can mean cutting concrete and compromising waterproofing and finishes.
We document key pre-pour elements with photos and provide an actionable defects list you can forward to your builder promptly. This creates a clear record of what was observed at the base stage and what needs to be corrected before concrete is placed.
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Find answers to the most frequently asked questions about our inspection service.
Book it for the window after the formwork, reinforcement and moisture membrane are installed, but before the concrete truck is scheduled. In Notting Hill, site programs can move quickly once excavation is complete, so aim to organise the inspection as soon as you’re advised the pre-pour is ready. If possible, allow time for your builder to rectify items without delaying the pour.
A Stage 1 Pre-Slab Inspection focuses on what will be locked under the slab: site preparation, formwork set-out, steel reinforcement placement and support, the vapour barrier/moisture membrane, and visible service penetrations. We also note workmanship issues that could affect slab performance. The goal is to identify non-compliance and defects before concrete is poured and access is lost.
Yes. Notting Hill builds may use waffle pod systems or conventional raft slabs depending on the design and site conditions. We inspect what’s visible and relevant to the system in place, including pod layout (where accessible), beams and trenches, reinforcement placement and membrane detailing. We then report on issues that should be addressed before the pour to avoid future structural and moisture problems.
On Notting Hill sites, we often see tight access and multiple service runs, which can lead to penetrations being crowded near slab edges or beams. Knockdown-rebuild blocks can also involve reworked ground and old service alignments, increasing the importance of confirming the base is properly prepared and that membranes and reinforcement haven’t been compromised during last-minute trade work.
We list each issue clearly in the report with photos and practical recommendations, so you can ask your builder to rectify before proceeding. Many pre-slab items—like steel positioning, membrane repairs or adjusting penetrations—are relatively straightforward when caught early. If the defect relates to the base preparation or set-out, addressing it before the pour can prevent slab performance issues and avoid disruptive concrete cutting later.
Still have questions?
Get in TouchACE Building and Pest Inspections checks formwork, steel and moisture barriers at Stage 1 so you can request fixes while the slab is still accessible. Call 0485 857 077.