What Happens at a Pre-Pour Inspection — Step by Step

Before the Inspection

You contact VG Inspect immediately when you receive your pour date notification from your builder. We confirm availability and attendance time. You don't need to be present — The inspector attends independently and your builder provides site access.

If you want to attend, you're welcome to. Many clients do, particularly for the pre-pour — it's often the only opportunity to physically see the elements of your home that will be permanently hidden by concrete.

On Site — What the Inspector Checks

The inspector arrives at the site and begins a systematic assessment of the slab setup. This is not a quick walk around. A thorough pre-pour inspection takes 45 minutes to 1.5 hours depending on the size and complexity of the slab.

Reinforcement steel assessment. The inspector checks the placement of reinforcement bars against the engineering drawings, measures concrete cover at multiple locations, checks bar chair placement and spacing, and verifies splice lap lengths at all bar joins.

Vapour barrier assessment. The vapour barrier is checked for continuity across the entire slab area. Every cut, tear and penetration is assessed for tape application. Untaped areas are photographed and documented.

Termite barrier assessment. The termite management system — whether chemical, physical or both — is checked for continuity at all edges and penetrations. Every pipe penetration through the slab is checked for a compliant termite collar.

Pipe and conduit placement. All plumbing pipes and electrical conduits are checked for positioning relative to reinforcement steel and waffle pods. Pipes touching steel or pods can prevent concrete from fully surrounding them, creating voids.

Formwork condition. The formwork perimeter is assessed for gaps, bowing and positioning. Gaps in formwork allow concrete to escape during pouring; bowing affects the edge beam profile.

Site conditions. The interior of the slab area is checked for vegetation, debris, offcuts and any material that shouldn't be encased in concrete.

Photography

Every defect found is photographed in context — showing the defect, its location within the slab and sufficient surrounding detail to be clearly identifiable. Where measurement is relevant, a tape measure or spirit level is included in the photograph.

After the Inspection

The inspector returns to compile your report. VG Inspect reports are delivered within 24 hours of the inspection — typically the same day or the following morning.

Your report includes every defect found, photographed and referenced to the applicable standard. The builder's action list at the end of the report gives your site supervisor a numbered list of items requiring attention before the pour proceeds.

If Defects Are Found — What Happens Next?

You send your report to your builder immediately. For a pre-pour inspection, time is critical — if defects require rectification before the pour, your builder needs the report as quickly as possible to arrange the necessary trades.

Most defects found at pre-pour stage are straightforward to rectify: adjusting bar chairs, taping vapour barrier cuts, installing termite collars on missed penetrations, cleaning debris from the slab area. These are typically hours of work, not days.

VG Inspect is available to discuss any item in your report with you or your builder. We can clarify the standard reference, explain the measurement methodology or confirm what an acceptable rectification looks like.

If the Pour Proceeds Without Rectification

If your builder proceeds with the pour despite outstanding defects noted in your report, the documented defect report becomes evidence that the builder was formally notified of non-compliant conditions before pouring — which is relevant to any future structural assessment or warranty claim relating to the slab.

This is why the pre-pour report matters even if your builder doesn't immediately act on every item. The documentation is as important as the finding.