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Ferntree Gully blocks often sit on sloping sites near the Dandenong Ranges where drainage, cut-and-fill and retaining edges can make the base stage unforgiving—one missed detail before the pour can lock in moisture and movement issues.
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Our comprehensive service includes everything you need to make an informed decision about your property.
We assess whether the slab area is properly cleared, compacted and prepared, including any evidence of soft spots, uncontrolled fill or ponding. A stable base is essential to reduce differential settlement—particularly on Ferntree Gully sites with cut-and-fill or stepped platforms.
We check formwork alignment, edge beam configuration and key dimensions against the drawings, including slab set-downs for wet areas, garages and external zones. Getting these right before the pour helps prevent incorrect floor levels, water entry points and costly grinding or rework later.
We inspect reinforcement type, spacing, laps and tie-downs, plus whether steel is placed where it should be in beams, pods (if used) and around openings. Correct reinforcement placement improves slab performance and reduces cracking risk once the slab is loaded.
We confirm the steel is properly supported on suitable chairs and that cover requirements are likely to be met. If reinforcement sits on the ground or chairs are missing, the steel can end up too low, increasing corrosion risk and reducing structural effectiveness.
We check the membrane for tears, punctures, laps, taping and how it’s detailed at penetrations and edges. A compromised vapour barrier can allow moisture movement through the slab, contributing to damp smells, floor covering failures and long-term moisture issues.
We review plumbing and conduit penetrations for positioning, sealing readiness and potential conflicts with reinforcement. Where termite management measures are part of the build, we check visible preparation at the slab edge/penetrations so the system can work as intended once the slab is poured.
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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 essentially ready to pour—before concrete arrives. In Ferntree Gully, rain can quickly change site conditions, so aim for an inspection within 24–48 hours of the scheduled pour. If the builder delays, ask them to keep the site accessible so any issues can be addressed without rushing.
Yes—within the base-stage scope we look for practical drainage and moisture-management risks that affect the slab, such as ponding in the footprint, fall directing water back under the membrane, and whether the site preparation suits the block’s slope. We also note concerns around slab edges and step-down areas where water can collect. Detailed stormwater design is separate, but slab-impacting issues are flagged.
Common issues include torn or poorly lapped vapour barriers, reinforcement sitting too low due to missing chairs, incorrect beam or set-down formwork, and service penetrations placed in ways that conflict with reinforcement. We also see site prep problems like soft spots or wet areas that weren’t addressed. Catching these before the pour is critical because rectification is far simpler and cheaper at this stage.
They can be. Parts of the broader foothills area can experience soil movement with moisture changes, which makes correct site preparation, drainage and reinforcement detailing especially important. While we don’t perform a geotechnical soil test as part of Stage 1, we check whether the visible pre-slab works align with the approved design and whether conditions on the day (wet ground, soft areas, poor drainage) could undermine the slab’s performance.
You’ll receive a detailed written report with photos, clear defect descriptions and recommended actions, focused on what must be addressed before the concrete is poured. Use it as a checklist in writing to your site supervisor and request confirmation that items are rectified prior to the pour. If you’re unsure about a response from the builder, we can help you interpret the findings so you know what’s urgent.
Still have questions?
Get in TouchACE Building and Pest Inspections focuses on the details that are easiest to miss at base stage—membrane integrity, steel support, set-downs and slope-related drainage risks—so you can raise fixes early. Call 0485 857 077.