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What Is Concrete Cutting?

Concrete cutting is a technique employed by construction professionals to cut into concrete surfaces safely and efficiently. Specialized tools are utilized in this process.

Concrete Cutting Auckland provides concrete scanning services to new and renovation projects alike. Their scanning service serves as an essential initial step of construction as it detects rebar and provides comprehensive reports for project teams.


Concrete Cutting Auckland

Cutting concrete can be a dangerous endeavor, and taking appropriate precautions to prevent injury is vital to its success. Such precautions include using water to cool the blade and managing dust levels effectively – especially since concrete dust contains silica which is harmful to lung health. In addition, use of protective gear like masks and sturdy work boots is strongly advised when working with any equipment used during cutting concrete projects.

A concrete cutter is a specialised power tool used to cut through concrete, bricks, masonry tiles and other dense construction materials such as tiles. They can be hand-held or table-mounted and powered by gasoline, pneumatic pressure or electricity; usually equipped with diamond saw blades such as Tusk’s general purpose diamond blades which contain 28% concentrations of diamonds for cleaner cuts and up to twice longer lifespan than lower quality blades. TradeSmart stocks general purpose Tusk blades which feature this 28% concentration and TradeSmart stocks general purpose diamond blades from Tusk with 28% concentration of diamonds for faster cutting power and superior lifespan than lower quality blades from lower quality manufacturers like Tusk for ease of use when purchasing.

Concrete cutting requires patience and precision, yet can be an effective means for removing concrete walls or creating channels for plumbing or electrical pipes. To reduce risk, it is advised that cutting lines be marked using string or chalk. Distractions should be minimized as much as possible; using earbuds may prevent you from hearing warning signals or equipment backup alarms properly.


Many construction projects require cutting concrete, from removing an existing slab for patch repair to creating openings in walls and doors. Due to these precise tasks requiring professional service, hiring a concrete cutter is vitally important. These power tools use diamond blades that cut through dense materials such as concrete, bricks or even mortar with ease and come equipped with remote controls or hand-held saws – perfect for creating openings in walls and doors or patch repairs!

Before beginning work on cutting concrete, it is a wise practice to mark out the area you intend to cut in order to avoid accidental cuts and achieve the best result possible. Marking paints can help indicate where cuts should be made while string lines or colored chalk should be avoided as these may become embedded on surfaces and become difficult to remove later on.

New concrete shrinks slightly as it dries, posing the risk of cracking. To mitigate this risk, construction cuts (also referred to as Control or Expansion Cuts) must be placed and made within 24 hours of pouring for crack prevention purposes. Failure to do this may result in cracked slabs later.

After marking out your concrete, it’s also wise to ensure all equipment used for cutting it has been thoroughly cleaned. Doing this helps prevent dust or debris from spreading during cutting processes, increasing accuracy of finished works. This step is particularly essential if the work requires precise cuts as any mistakes here could prove costly.


Concrete cutting specialists offer invaluable services for many construction projects. Their precise cutting services create openings in concrete walls for doors and windows, HVAC ducting, elevators, plumbing lines and electric lines; while core drilling creates holes to enable plumbing and electricity lines. Their work ensures that new elements fit seamlessly with existing structures.

The cost of concrete cutting depends on a number of variables. One significant aspect is the type of aggregate used in its composition – harder aggregates like flint or quartz are harder to cut than limestone, slag or coral, for instance. Furthermore, reinforcing steel increases cutting costs as its presence shortens blade life and decreases cutting rates.

Another key consideration in concrete placement is cutting. Newly laid concrete shrinks slightly as it dries, which can result in cracking. To mitigate any such potential cracking and avoid cracking altogether, concrete should be cut after placing; this process is known as Construction Cutting and should take place shortly after its placement – within 24 hours, ideally.

Decorative concrete cutting (scoring) is an affordable way to add aesthetic value to a driveway, sidewalk or patio. When selecting a contractor to perform this service, be sure they have experience and can offer expertise in their field. When searching for contractors to perform this service, select those with multiple years in business as they will have more knowledge of various forms of concrete.


For cutting concrete, there are various cost measures taken into account. When it comes to professional cutting services, prices will depend on many variables such as the thickness of the slab being cut, surface area, precision requirements and length.

Professional contractors employ heavy duty walk-behind concrete saws and petrol concrete breakers for larger jobs, as well as 3 phase electric powered saws for indoor work to reduce carbon monoxide fumes. These machines can cut to depths of 600mm while also being used to sawcut asphalt roads to gain access to their subbase layers.

Decorative cuts can add depth and character to a concrete slab, and can be implemented through various methods. A stencil may be placed over the wet concrete prior to pouring, creating patterns in its finished form; alternatively, diamond wire saws can be used to cut straight or curved lines into the slab’s surface.

As with any business decision, trust is of utmost importance when selecting a concrete cutting contractor. Be sure to choose members of the NZ Concrete Contractors Association with proven quality, safety and professionalism credentials vetted for. Avoid hiring cheap contractors who may perform subpar work at cheaper costs while more expensive options may overcharge for their services; look for balance between cost and quality in your search for an ideal finish.