Do you core concrete for compressive strength testing?

Yes. Where the question needs a number, the core goes to a NATA-accredited laboratory for compressive strength testing. The engineer positions each core for the question it has to answer and records what comes out of the barrel, so the number is read with where the core was taken and what the layers showed. Laboratory testing is quoted alongside the coring, in the same written fee.

How much does concrete coring cost in Sydney?

Coring starts at $120 + GST per hole, with a three-hole minimum on every visit. Above that, the figure moves with core size, location, access and time on site. Send the address and what you need cored, and you will have a fixed fee in writing within one business day.

Can you core through an existing slab for a geotechnical investigation?

Yes. Warehouses, factory floors and basements were never meant to be drilled, so the slab is cored first and the geotechnical investigation goes down through the hole. The crew that cores the concrete drills the ground under it, in one mobilisation. On a pavement the log carries on the same way, through the concrete into the layers beneath it and the subgrade below.

How is each core logged and recorded?

The engineer logs each core on site: where it was taken, the thickness, the reinforcement cover and condition, and what the layers show. A photograph goes with the log. Whether a surprise in the barrel changes the design question is an engineering call, not a cutting one, and the same engineer is there to make it. That record is what the report is built on.

Concrete Coring · Engineer‑Supervised · Sydney

Concrete Coring. Engineering Attached.

Any cutting contractor can put a hole in a slab. SFGEO cores it with the engineer standing over the barrel: the core logged and photographed, the thickness verified, and when strength matters, the sample on its way to a NATA-accredited laboratory. One engagement, from the hole to the answer.

Request A Fixed-Fee Quote Call 0423 483 555

From $120 + GST per hole · Three-hole minimum per visit · Fixed fee in writing within one business day

01 · Slab Verification

Slab Verification.

Thickness, reinforcement cover and condition, read from the core rather than assumed from the drawings. Each core is logged and photographed on site; when the question needs a number, compressive strength is tested through a NATA-accredited laboratory. The core leaves as evidence, not as a hole in the floor.

Verify A Slab

02 · Pavement Investigation

Pavement Investigation.

Core through the pavement and keep going. One visit logs the concrete, the layers beneath it and the subgrade below, so a pavement question and a ground question are answered by the same crew, in the same report, and where the pavement question turns out to be a ground question, the geotechnical engineer is already standing on it.

Scope A Pavement Program

03 · Penetrations & Services

Penetrations & Services.

Located penetrations through slabs and walls for services, positioned with the structure in mind rather than the drawing alone. Reinforcement is considered before the barrel turns, services are marked, and the hole is reinstated, so the penetration lands where it should and nothing load-bearing pays for it.

Book Penetrations

Tape measure checking depth down a cored hole through a slab

04 · Investigation Access

Investigation Access.

Coring through existing slabs so a geotechnical investigation can reach the ground beneath a building that was never meant to be drilled: warehouses, factory floors, basements. One crew cores the concrete and drills the ground under it in the same mobilisation.

Open Up An Investigation

Why The Engineer Matters

A Core Is Evidence.

Where it was taken, what the layers show, whether the surprise in the barrel changes the design question. Those calls are engineering, not cutting. SFGEO positions each core deliberately, records what comes out, and puts the result in context, so the hole you pay for answers the question you actually have.

Pricing

Priced Per Hole. Quoted Per Site.

Coring is priced per hole, from $120 + GST, with a three-hole minimum per visit. Core size, location, access and time on site set the fee, and it is confirmed in writing before the barrel touches concrete. Where a core goes on to laboratory testing, that is quoted alongside, never added afterwards.

Common Questions

Cores taken with the engineer standing over the barrel, for anyone who needs a slab or pavement verified rather than assumed from the drawings. Each core is logged and photographed on site, the thickness measured, and when strength matters, the sample goes to a NATA-accredited laboratory. Pricing is per hole, from $120 + GST with a three-hole minimum per visit. One engagement, from the hole to the answer.

One Hole. The Whole Answer.

Tell us what the slab is hiding, or what you need to put through it. A fixed fee in writing within one business day.

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