Concrete Core Drilling You Can Rely On – Christchurch & Canterbury
Smooth, accurate holes drilled to spec – for plumbing, electrical, HVAC and more across the region.
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.
Christchurch-based & locally owned
A specialist team ready for jobs of any size
Core holes from 12mm to 600mm+ – drilled to spec
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.
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.