★★★★★ 4.8 on Google · 570+ reviews

Slab pre-pour inspection in Sunbury

Before the concrete truck arrives, the steel, pods and beam sizes on your Sunbury slab are checked against the engineer's design.

The day before concrete, with steel and pods exposed
About 1 hour on site
Report within 24 hours

Get an instant quote Call 1300 471 805

Request a quoteTell us the job and we will call you back.

Fully licensed & accredited

Stage2 of 7

When to bookThe day before concrete, with steel and pods exposed

Time on siteAbout 1 hour on site

Inspected againstAS 2870, AS 3600, NCC Part 3.2, the engineer's slab design and the soil report

What is included in a Sunbury slab pre-pour inspection

Slab class and layout checked against the engineer's design and the soil report
Edge beam and internal beam depths and widths
Reinforcement size, spacing, laps and trench mesh
Bar chairs, cover and support so steel does not sit on the ground
Waffle pods, void formers and pod spacing
Vapour barrier coverage, laps and tape at penetrations
Plumbing and electrical penetrations and sleeves
Set-downs for wet areas, garage, porch and alfresco
Termite management components installed before the pour
Formwork alignment, level and set-out against the plans
Stormwater pipe cover and pit positions where visible
Site cut, fill and pier holes where visible
Hot water service and meter box slab extensions formed
Trench cleanliness and debris before the pour

Why it matters here

Slab pre-pour inspections on Sunbury builds

Our Sunbury slab jobs have shown internal beams formed less than half their required width, pods sitting loose inside beams, mesh resting on service pipes and vapour barrier laid over the steel. Each one is cheap to fix today and impossible to fix tomorrow.

What we find at this stage in Sunbury

Internal beam formed about 50mm wide against 110mm on the plans
Waffle pods loose and drifting into beams
Mesh touching service pipes
Vapour barrier lying on top of the steel
Too few bar chairs to hold cover
Shower recess not formed

Waffle pods left unfixed, free to drift and squeeze the beams narrower, found during a slab pre-pour inspection in Sunbury — Waffle pods left unfixed, free to drift and squeeze the beams narrower

More bar chairs needed so the mesh keeps its cover inside the concrete, found during a slab pre-pour inspection in Sunbury — More bar chairs needed so the mesh keeps its cover inside the concrete

Steel sitting too close to the edge to get the concrete cover it needs, found during a slab pre-pour inspection in Sunbury — Steel sitting too close to the edge to get the concrete cover it needs

Sample findings

Sample defects found during our slab pre-pour inspections in Sunbury

Annotated findings from Slab pre-pour inspections.

A loose waffle pod sitting inside an internal beam and blocking the concrete, found during a slab pre-pour inspection in Sunbury — A loose waffle pod sitting inside an internal beam and blocking the concrete

Slab mesh resting against service pipes where a 25mm gap is required, found during a slab pre-pour inspection in Sunbury — Slab mesh resting against service pipes where a 25mm gap is required

Vapour barrier draped over the reinforcement instead of lying beneath it, found during a slab pre-pour inspection in Sunbury — Vapour barrier draped over the reinforcement instead of lying beneath it

Beam width wandering along its run where pods had shifted out of line, found during a slab pre-pour inspection in Sunbury — Beam width wandering along its run where pods had shifted out of line

The other stages of a Sunbury build

All construction stage inspections in Sunbury →

Guides

Construction stage guides for Sunbury

19 February 2026 · 6 min read

Lintel tie-downs on a Sunbury frame

Why the beams over your windows need their own fixings, and what we found missing.

26 March 2026 · 5 min read

Slab beams narrower than drawn

How loose waffle pods shrink the beams in a Sunbury slab, and how to catch it.

14 May 2026 · 5 min read

Roof penetrations and wall wrap at lock-up

The water details that close over at a Sunbury lock-up, and the ones we keep finding open.

All guides →

Book a slab pre-pour inspection in Sunbury

Instant online pricing, or talk to the booking team on 1300 471 805.

Get an instant quote Call 1300 471 805

FAQ

Slab pre-pour inspections in Sunbury: common questions

What is the most serious slab finding you see in Sunbury?

Undersized beams. One Sunbury slab had an internal beam formed at about 50mm where the plans called for 110mm, because pods had moved.

Why do loose pods matter?

A pod that drifts narrows the beam beside it. The beam then carries less load than designed, and nobody can see it once concrete is in.

Does the vapour barrier really matter?

Yes. It stops ground moisture rising through the slab, and it must sit under the steel and be lapped and taped, not draped over the top.

Will the pour be delayed?

Only if something needs fixing first. Most items are corrected by the concreter the same day.

Which standards apply?

AS 2870 for residential slabs and footings, the engineer's design and the soil report for your lot.

Do you need the soil report?

It helps. The engineering is designed around it, and the slab class it gives decides beam depths and steel.

Call Get a Free Quote