Knockout Concrete Cutters is a locally owned concrete cutting and drilling specialist based at 36 Curries Road in Hillsborough, Christchurch. Founded in 1996 by a local boxer — the name is a deliberate nod to his fighting spirit and no-nonsense approach — the business is today owned and led by Greg Turnbull, who heads a specialist team with more than 139 years of combined industry experience. Over three decades the company has become a well-known, respected name in Canterbury's construction and trades scene, working with builders, tradies, contractors, project managers and homeowners.
The service list covers the full spectrum of concrete work: precision cutting of walls, floors and slabs; core drilling from 12mm to over 600mm for plumbing, electrical and HVAC; non-invasive concrete scanning to detect rebar, utilities and post-tension cables before any cut; grinding to prep surfaces for sealing or polishing; wall sawing for doors, windows and access ways; and wire sawing for large or awkward cuts in heavy structures like bridge sections and foundations. Behind it all sits a modern, well-maintained fleet — ground, ring, handheld, wall and wire saws, diamond core drills up to 700mm, bursters and crushers, a trailer-mounted hydrovac, an electric mini skid steer and concrete scanners.
Knockout has built its reputation on showing up on time, working safely and leaving sites clean. The company is a Site Safe member, holds SiteWise Green certification, fields BCITO-trained operators, and guarantees all work. No job is treated as too big or too small — from a residential driveway to large-scale commercial and infrastructure projects — with the team servicing Christchurch and Canterbury daily, from Rangiora, Rolleston and Lincoln to Kaiapoi and Ashburton, and the wider South Island as required.
Knockout Concrete Cutters has been a fixture on Canterbury job sites for more than three decades. Based in Hillsborough, Christchurch, the team provides concrete cutting, drilling, sawing, scanning and grinding services to builders, tradies, contractors, project managers and homeowners across Christchurch, Canterbury and, when required, the wider South Island.
The business was founded in 1996 by a local boxer, and the name is a deliberate nod to his fighting spirit and no-nonsense approach to getting the job done. What began as one man's operation has grown into a respected, well-known name in Canterbury's construction and trades scene.
Today Knockout is proudly owned and led by Greg Turnbull, who heads a specialist team with more than 139 years of combined industry experience. That depth shows in the work: clean, accurate cuts, safe practices and jobs finished right the first time. The company has worked with some of the biggest names in the region and prides itself on building long-term relationships with the people who rely on it. The ethos is simple — turn up on time, work safely and leave the site clean.
Knockout covers the full spectrum of concrete work:
The team also takes on jobs where concrete needs to be broken or removed entirely.
One of Knockout's quiet strengths is its equipment. The fleet includes petrol, electric and hydraulic handheld saws, ground saws and ring saws, wall and rail saws, wire saws, diamond core drills from 10mm to 700mm, concrete prep grinders, bursters and crushers, Soff Cut machines, scabblers, wet and dry vacuums, a trailer-mounted hydrovac, an electric mini skid steer loader with multiple attachments, and concrete scanners and transponders. Everything is maintained to a high standard so it arrives on site ready to work.
Knockout positions itself as more than "a guy with a saw." The company is a Site Safe member, holds SiteWise Green certification for its verified health and safety commitment, and fields BCITO-trained operators. All work is guaranteed, crews are fully certified and site-ready, and every project is delivered with clean, safe worksites in mind.
Client reviews tell the story. One customer noted the crew turned up ten minutes early, did the best concrete cutting he'd ever seen and cleaned up all the mess. Others describe the team as knowledgeable, friendly, flexible and prompt — professional work reviewers say they can't fault.
No job is too big or too small. Whether it's a residential driveway, a commercial fit-out or an infrastructure project on a tight timeline, the team brings the same specialist skill set and can-do attitude.
Getting a quote is straightforward: call and chat directly with the team, send an email, or fill in the online form — which asks for the job address, preferred timing and whether power and water are available on site — with responses typically within one working day. Standard hours are Monday to Friday, 7:30am to 5:00pm, with other hours available by appointment. Knockout services Canterbury daily, from Christchurch Central to Rangiora, Rolleston, Lincoln, Kaiapoi, Selwyn and Ashburton, with the South Island covered as required.