Concrete Contractor in London, Ontario: Cutting and Coring for Occupied Plants and Healthcare Campuses

A concrete contractor in London built for occupied buildings

London is one of southwestern Ontario’s most active markets for industrial, commercial and institutional construction. A deep manufacturing base, several large healthcare campuses, Western University, and a long-established insurance and commercial sector all add up to building stock that rarely sits empty. That is the central challenge for cutting and coring work here: most of it has to happen while the lights are on, the lines are running and patients, staff or students are in the building.

Concrete Drilling & Sawing Ltd. (CDS) has been a concrete contractor since 1967, and our approach is built for exactly that environment. We bring electric, low-emission equipment to occupied sites, scan before we cut as standard practice, and plan the work to keep disruption to a minimum. Our crews mobilize to London from our Hamilton shop, so you get an established, fully insured contractor without needing one based in the city.

Concrete cutting and coring services for London projects

We handle the full range of concrete cutting services, with particular emphasis on the methods that suit London’s occupied plants and institutional buildings:

• Electric slab sawing — Our electric saws produce no engine exhaust, which makes them well suited to food-processing plants, active production lines, large warehouses, hospitals and other indoor or occupied spaces where air quality matters. The low-emission profile also supports facility ESG goals. For outdoor or well-ventilated work, fast diesel slab sawing remains available.
• Wall sawing — Hydraulic and electric wall saws cut clean openings for doors, windows, equipment access and demolition cuts in walls and elevated slabs. Steady ICI construction across London makes this one of our most-requested services for plant and institutional retrofits.
• Concrete removal & excavation — Once the cuts are made, we handle concrete removal and excavation, hauling material away cleanly so the next trade can move in. We also offer concrete crushing and recycling to keep material out of landfill where it makes sense.
• Core drilling — Core drilling creates precise penetrations through floors and walls for electrical, plumbing, HVAC and sprinkler-fitter work, including condos, water-treatment and sewage facilities.
• Wire sawing — Diamond-wire sawing handles very thick concrete, embedded steel and hard-to-reach cuts that standard saws cannot manage.
• GPR concrete scanning — Before we cut or core, we use ground-penetrating radar to locate rebar, post-tension cables, conduits and voids, and we provide detailed client reports. See our GPR services for scanning, plus steel cutting, demolition and full concrete construction.

Industries we serve around London

We work trade-to-trade with the contractors and professionals driving ICI work in London and the surrounding region:

• General contractors on industrial, commercial and institutional projects
• Engineers and project managers coordinating plant and campus retrofits
• Electrical, mechanical, and plumbing and pipefitting contractors who need clean penetrations
• Precast concrete manufacturers and commercial landscapers
• Demolition companies that do not cut or scan their own concrete

London’s manufacturing employers, healthcare operators, Western-area institutional buildings and commercial property owners all run facilities that benefit from low-emission methods and careful scheduling — the kind of work we specialize in.

How we serve London and southwestern Ontario

CDS operates from a single location at our Hamilton headquarters and dispatches across all of Ontario from there. London and the surrounding communities — including St. Thomas, Strathroy, Ingersoll and Woodstock — sit comfortably within our southwestern Ontario service range, served next-day for most projects, with same-day mobilization available for emergencies in the Greater Hamilton and GTA area.

For institutional and ICI procurement, credentials matter. CDS carries $5M liability insurance, maintains full WSIB compliance and operates a current health and safety program — the documentation London hospitals, schools, plants and commercial owners expect before crews step on site. We hold a 5.0 rating from 7 Google reviews.

Frequently Asked Questions

Can you cut concrete in an occupied plant or hospital without shutting it down?

Yes. Our electric slab saws produce no engine exhaust and run cleaner than diesel, which makes them suited to occupied production lines, food-processing plants and healthcare campuses. We scan before cutting and plan the work to keep disruption to a minimum.

Do you serve communities around London?

Yes. London sits within our southwestern Ontario service range, and we also reach nearby municipalities including St. Thomas, Strathroy, Ingersoll and Woodstock. These areas are served next-day for most projects from our Hamilton headquarters.

Is CDS insured and compliant for institutional work?

Yes. CDS carries $5M liability insurance, maintains full WSIB compliance and operates a current health and safety program. These are the credentials London hospitals, schools, manufacturers and commercial owners typically require before work begins.

What concrete services do you offer for retrofits in London?

We provide electric and diesel slab sawing, wall sawing, wire sawing, core drilling, concrete removal and excavation, concrete crushing and recycling, demolition, steel cutting and GPR concrete scanning. Retrofit projects often combine wall sawing, core drilling and concrete removal. CDS also cuts anti-slip concrete grooving into ramps, loading docks and warehouse floors around London.

Do you scan concrete before cutting?

Yes, scan-before-cut is standard practice at CDS. We use ground-penetrating radar to locate rebar, post-tension cables, conduits and voids, and we provide detailed client reports so you know what is in the slab or wall before any cut is made.

Concrete Cutting & Scanning Guides for London

Planning a concrete project in London? These guides explain how our crews work: diesel vs electric concrete sawing; core drilling hole sizes; cut-and-lift concrete removal.

CDS also serves nearby Kitchener and Windsor — see every region on our Ontario service areas page, or request a free quote for your London project.