Electric slab sawing is the cleanest way to cut horizontal concrete — floors, slabs, and pavement — inside a building that cannot be shut down. Concrete Drilling & Sawing Ltd. (CDS) runs walk-behind electric slab saws across Hamilton and all of Ontario, giving food plants, distribution warehouses, and hospitals a straight, accurate cut with zero combustion exhaust. Family-run since 1967, we plan every cut around the people and the production lines that keep working right beside us.
What Electric Slab Sawing Is
Electric slab sawing uses a walk-behind saw driven by an electric motor to make horizontal cuts in slabs, floors, and pavement. The operator guides the saw along a marked line while a diamond blade drops to the required depth, producing a clean, dimensioned cut for openings, expansion joints, trench lines, and slab sections marked for removal.

The important distinction is the power source. Many contractors only run gasoline or diesel saws, which cannot work indoors without heavy ventilation because they produce combustion exhaust. An electric slab saw produces none, so it is the right tool for interior floors and any space where air quality and noise matter. Not every concrete company actually owns and maintains an electric slab saw fleet — CDS does, and has for decades.
How CDS Runs an Electric Slab Sawing Job
Every job starts with a plan for the cut and for the space around it. We confirm the line, the depth, and the removal sequence while staff or a live line keep operating nearby. Our process on a typical electric slab sawing job:
- Scan the slab to map what is inside it before any blade touches concrete.
- Mark the cut line and set the saw’s blade depth to the drawing.
- Feed water to the blade to control slurry and suppress dust at the source.
- Cut straight, dimensioned lines for openings, trenches, joints, or removal.
- Manage slurry and debris so the area is left clean and back in service quickly.
We Scan Before We Cut
Every slab we cut is scanned first. Before a blade drops we locate rebar, post-tension cables, conduit, and voids so the cut lands exactly where it should and nothing critical is severed. Scan-before-cut is a standard step on every CDS job, not an add-on.
The Equipment We Bring
Electric slab saws are the core of this service, backed by the diamond tooling and support gear a clean interior cut demands:
- Walk-behind electric slab saws sized for interior floors and pavement.
- Diamond blades matched to slab depth and aggregate hardness.
- Water feed and slurry management to keep respirable dust down.
- Concrete scanning equipment so we always know what is under the cut.
Because the drive is electric, the saw runs with low emissions, low noise, and less dust than a combustion unit — the combination that makes it safe to operate in occupied buildings. For outdoor and off-grid work where no power is available, we also run diesel slab sawing, and both feed into our broader saw cutting concrete capability.
Specification & ESG: Why the Power Source Belongs in Your Scope
For facility managers, plant engineers, and procurement teams, an electric slab saw is a specification decision, not just a preference. When you qualify a concrete cutting vendor for an occupied building, the saw’s power source belongs in the scope of work — and here is why it matters on paper as much as on site.
Air quality and worker health
An electric slab saw produces zero combustion exhaust indoors — no carbon monoxide and no diesel particulate drifting toward your staff, your patients, or your product. On a live food or beverage line, that protects both the workforce and everything moving down the belt — no need to tent, ventilate, or evacuate the area to run a cut.
Reduced noise
Electric drives run noticeably quieter than combustion saws, so adjacent offices, patient rooms, retail floors, and shift workers are far less disrupted while the work goes ahead.
Dust control
Wet cutting suppresses silica dust right at the blade, and slurry management keeps the surrounding floor clean — a real advantage in hygienic environments such as food processing and healthcare.
Environmental, social, and governance alignment
Choosing electric equipment supports the environmental and social commitments many organizations now report on: lower on-site emissions, a safer and healthier workplace, and a documented contractor on the governance side. CDS is $5M liability insured and WSIB compliant, with documentation available for vendor qualification before an award. If your organization tracks these goals across every trade, our low-emission concrete cutting approach gives procurement a clean, defensible choice.
Typical Jobs and Clients
Electric slab sawing is the tool of choice wherever a floor has to be cut without shutting the building down. We are regularly called for:
- Food and beverage processing plants with live production lines.
- Large distribution warehouses and fulfilment centres.
- Hospitals, clinics, and other healthcare facilities.
- Schools, offices, and retail spaces that stay occupied during work.
- Cutting trench lines and channels for new drains, plumbing, or conduit.
- Openings and machine pits cut into existing slabs for equipment.
- Slab sections marked for controlled removal in a retrofit.
Why Facilities and Contractors Choose CDS
CDS has cut concrete across Ontario since 1967. What sets our electric slab sawing apart:
- A maintained electric saw fleet that many competitors simply do not own.
- Scan-before-cut on every job, so nothing critical inside the slab is a surprise.
- $5M liability insurance and full WSIB compliance, verifiable before award.
- A family-run crew with more than five decades of slab cutting behind it.
- One vendor for the full range of concrete cutting services, from scanning through cutting and removal.
Serving Hamilton and All of Ontario
CDS is based at 276 Ferrie St E in Hamilton (L8L 3T7) and mobilizes electric slab saws to job sites across the province — Hamilton, Toronto, Kitchener-Waterloo, London, Ottawa, Windsor, and everywhere between. If your site is occupied, sensitive, or running a live line, our electric equipment lets the cut happen without clearing the room.
Frequently Asked Questions
What is electric slab sawing?
Electric slab sawing is horizontal cutting of concrete floors, slabs, and pavement using a walk-behind saw powered by an electric motor and a diamond blade. It delivers straight, dimensioned cuts with zero combustion exhaust, which makes it the standard choice for indoor and occupied sites.
Can you cut a concrete floor inside an occupied building?
Yes. Because an electric slab saw produces no combustion exhaust, we can cut interior floors in food plants, warehouses, hospitals, and other live environments without tenting or ventilating the space. Wet cutting and slurry control keep dust and mess down while people keep working nearby.
How is electric slab sawing different from diesel slab sawing?
The cut is the same; the power source is not. Diesel slab saws are built for outdoor and off-grid work where exhaust is not a concern, while electric slab saws are made for indoor and sensitive sites where air quality and noise matter. CDS runs both, so we match the saw to the environment.
Do you scan the slab before cutting?
Always. We scan every slab first to locate rebar, post-tension cables, conduit, and voids, so the cut lands where it should and nothing critical is severed. Scan-before-cut is a standard step on every CDS job.
Is electric slab sawing low-dust and low-noise?
Yes. The electric drive runs quieter than a combustion saw, and wet cutting suppresses silica dust at the blade. Together with slurry recovery, that keeps respirable dust and noise low — part of why the service fits hospitals, food plants, and other hygienic, sound-sensitive spaces.
Electric equipment keeps engine exhaust out of the air, but silica dust still matters; we work within the OSHA respirable crystalline silica standard.
Need electric slab sawing in Hamilton or anywhere in Ontario?
Concrete Drilling & Sawing Ltd. (CDS) has served Hamilton and all of Ontario since 1967. Licensed, insured, and ready to mobilize on short notice — residential, commercial, and industrial.
Phone: (905) 529-6029 | Toll-Free: 1-800-241-5708
Shop: 276 Ferrie St E, Hamilton, ON L8L 3T7 · View on Google Maps