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Maidstone builds often sit close to neighbouring fences and older services, so one missed set-out line, drainage point, or barrier lap can lock in slab issues you can’t easily fix after the pour.
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Our comprehensive service includes everything you need to make an informed decision about your property.
We compare the formwork layout to the available drawings and on-site markers, checking the slab footprint, offsets, and key dimensions. This helps reduce the risk of boundary encroachments, misaligned garages/porches, and rooms that don’t match the plan once framing starts.
We inspect the base material, evenness, and preparation around beams and thickened edges, looking for soft spots, uncontrolled fill, or poor trimming. A properly prepared base supports the slab uniformly and reduces the chance of cracking or movement driven by uneven support.
We assess whether the formwork is straight, secure, and set to consistent levels, including rebates and step-downs where visible. Solid formwork helps the slab achieve correct thickness and reduces the chance of edge blow-outs or low points that can affect finishes and drainage.
We check mesh type and placement, lap lengths, bar locations in beams, and the use of chairs/spacing to keep steel at the correct height within the slab. Correct reinforcement placement is critical because steel sitting too low, too high, or with poor laps reduces the slab’s performance.
We inspect the membrane for damage, adequate overlaps, taped joints where required, and sealing around penetrations. A continuous barrier helps limit ground moisture migration into the slab, which can contribute to damp issues and affect floor coverings later.
We review the placement and protection of plumbing and electrical conduits that will be cast into the slab, including clearances from beams and correct positioning for fixtures. Catching errors here can prevent expensive slab cutting and delays once the build is underway.
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Find answers to the most frequently asked questions about our inspection service.
Book as soon as the site is boxed up and steel, moisture barrier and service penetrations are in place, but before any concrete is poured. In Maidstone, schedules can move quickly once the pre-pour is called, so aim to line us up when the builder forecasts the pour date. If the pour is brought forward, call immediately and we’ll do our best to fit you in.
We focus on items that will be hidden forever once the slab is poured: base preparation, formwork set-out, reinforcement size and placement, membrane overlaps and sealing, and the exact location of pipes and conduits. After the pour, these details are largely uninspectable without destructive testing, so identifying issues now is the most cost-effective time to rectify.
Yes. Where practical, we’ll point out concerns on the day and describe them clearly so your site supervisor understands what needs to change before the pour. We then back this up with a written report and photos that reference the location and the issue. Final rectification still sits with the builder, but you’ll have clear documentation to support the request.
On tighter Maidstone sites, we often pay extra attention to set-out accuracy, edge beam formwork alignment, and placement of service penetrations so they don’t clash with beams, future walls, or boundary setbacks. Limited access can also mean membranes get torn or displaced during trades, so checking continuity and sealing before the pour is particularly important.
At pre-slab stage we check what is visible and relevant to the pour, such as slab levels, rebates, and the placement of drainage points and penetrations that must be cast in. Final surface drainage, paving and landscaping falls are usually addressed at later stages, but early level errors can make compliant drainage harder to achieve—so it’s smart to review levels now.
Still have questions?
Get in TouchACE Building and Pest Inspections helps you catch pre-pour slab issues while they’re still fixable. Call 0485 857 077 to secure an inspection before the concrete goes down.