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Coburg builds often happen on subdivided inner-north blocks with tight access, established trees and variable fill from older demolitions—small base-stage mistakes here can turn into uneven slabs and ongoing drainage issues.
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We assess the prepared base for signs of soft spots, uncontrolled fill, poor compaction and inadequate trimming that can allow the slab to settle unevenly. On Coburg infill sites, we also look for issues caused by recent trenching for services and works near boundary lines.
We check formwork is stable and correctly set out so the slab thickness and edge beams match the approved design intent. Errors here can affect finished floor levels, drainage falls around the home and the fit of brickwork or frames above.
We inspect reinforcement size and layout where visible, including laps, spacing, and whether bars and mesh are properly supported on chairs to maintain cover. If steel sits too low or shifts during the pour, the slab can lose strength where you need it most.
We review the moisture barrier for tears, punctures, poor overlaps and inadequate taping, including around penetrations. In Coburg’s winter wet periods, a compromised barrier can contribute to rising damp issues and moisture-sensitive flooring problems later.
We check pipe penetrations, conduits, rebates and set-down areas are positioned and prepared as required before concrete placement. Mistakes at this point can lead to costly core drilling, patching and waterproofing complications after the slab cures.
We assess visible provisions that influence sub-slab moisture and perimeter management, including awareness of how the site will shed water away from the slab edge. Where applicable, we also check that the slab-edge zone is being prepared in a way that supports the planned termite management approach.
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Find answers to the most frequently asked questions about our inspection service.
Book once the site is boxed up and steel and the vapour barrier are in place, but before any concrete arrives. In Coburg, pours can be scheduled quickly due to tight build programs on subdivided blocks, so it’s best to line the inspection up as soon as your builder confirms the base stage will be ready within the next day or two.
We inspect key visible items against good building practice and the information available on site (such as drawings and slab documentation, if provided). We focus on common pre-pour risks like steel placement, support and membrane continuity. If something looks inconsistent with the documented intent, we flag it clearly so you can request clarification or rectification from the builder or engineer.
Once concrete is down, issues like incorrect steel cover, missing or poorly lapped reinforcement, torn vapour barriers, mislocated penetrations and incorrect set-downs are difficult and costly to rectify. Even when repairs are possible, they often involve core drilling, cutting, patching and re-waterproofing, which can introduce new risks and delays.
They can be, mainly because the site may include previous structures, old paving, trenching for new services and variable fill from demolition or landscaping. Add narrow access and close boundary works, and it’s easier for levels, drainage falls, membranes or steel to be compromised during fast-paced construction. A pre-slab inspection is a practical checkpoint before everything is concealed.
Yes. Where the broader area holds moisture or the block sits lower than neighbouring properties, we pay closer attention to moisture management details that can be checked at this stage: membrane condition, sealing around penetrations, and how the slab edge and surrounding groundworks are being prepared for surface water to drain away. We document concerns so you can act before the pour.
Still have questions?
Get in TouchACE Building and Pest Inspections focuses on the base-stage details that commonly cause costly slab and moisture issues on Coburg infill builds. Call 0485 857 077 to secure an inspection time.