Concrete Core Drilling You Can Rely On – Christchurch & Canterbury

Smooth, accurate holes drilled to spec – for plumbing, electrical, HVAC and more across the region.

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Need precise core holes drilled quickly and cleanly?

Whether you’re running cables through a concrete slab or creating ducting holes in tilt panels, our team delivers high-quality concrete core drilling across Christchurch and Canterbury. We work with builders, sparkies, plumbers, HVAC techs, and project managers to drill clean, accurate holes in walls, floors, foundations and more – with minimal disruption and maximum efficiency. With Knockout, you get experienced operators, powerful gear, and friendly service that keeps your job moving. Just tell us what you need – we’ll turn up, drill it right, and tidy up before we go.

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Christchurch-based & locally owned

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A specialist team ready for jobs of any size

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Core holes from 12mm to 600mm+ – drilled to spec

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Dust-controlled, water-cooled gear for clean cuts

What We Drill

We’re set up for all types of core drilling jobs – big or small, residential or commercial. Here’s where our concrete core drilling is commonly used:


Slabs, Foundations & Footings

Core drilling for plumbing, drainage, or service runs through concrete bases and structural slabs.


✅ Tilt Panels & Precast Walls

Smooth holes through vertical surfaces for wiring, pipes, HVAC, or fixings – no cracking, no mess.


✅ Floors & Suspended Slabs

Ideal for multi-storey builds and renovation work needing access between levels or through decks.


✅ Driveways, Paths & External Areas

We drill to install bollards, fencing, or underground cabling where clean access is essential.

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Tools & Techniques We Use

We use a combination of electric and hydraulic core drills with high-grade diamond bits to handle all types of drilling jobs – fast, accurate, and controlled. Our equipment is regularly maintained, safety-checked, and site-ready.


  • Core drills – for precise holes from 12mm to 600mm+
  • Electric and hydraulic options – to suit your site needs
  • Diamond-tipped bits – to cut through concrete, brick, block, and more
  • Water-cooled systems – for dust control and smooth cutting



Got a tricky job? Let us know – we’re always ready to tackle the unique challenges.

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What You Can Expect

  • Clean, circular holes – drilled to size
  • Minimal disruption to surrounding structure
  • Water-cooled drilling for dust control
  • Clear comms and flexible scheduling


Whether you need a single hole or a full grid of core drill locations, Knockout delivers with precision and professionalism every time.

TALK TO OUR TEAM
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What People Say About Us

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Ready to Get Started?

Let’s Talk. 03 349 66 84

Give us a call or request a free quote today – our team will get you sorted fast.