Concrete floor leveling. Dead flat.
Self-leveling concrete, concrete grinding, patching, scarifying and chipping for homes, condos and commercial floors — measured with lasers and poured to ±2 mm over 3 m. Based in Whitby, working across Durham Region, Toronto and the GTA. Free on-site estimates.
Faster quote: send photos of your floor on WhatsAppMOVE YOUR CURSOR ACROSS THE HERO TO TILT THE FLOOR — A FLAT FLOOR DOESN'T DRIFT.
Typical flatness over 3 m
Quote after the site visit
One crew, one invoice
Walkable after the pour
Concrete floor services: five trades, one flat floor.
MIR offers five concrete floor services from one crew: self-leveling concrete, concrete grinding, patching and crack repair, scarifying and chipping. Most basement, condo and fit-out jobs combine several of them in sequence, so start with what you know you need and the rest is mapped on site during the free measurement.
We map your slab with a rotary laser, set the finished datum, prime, and pour self-leveling underlayment — flowing it out to within ±2 mm over 3 m. Walkable in hours and ready for LVP, tile, epoxy, hardwood or polished concrete.
IDEAL FOR
- Basements before LVP, laminate or engineered hardwood
- Condo suites and retail fit-outs
- Kitchens, hallways and open-plan renovations
- Warehouses and workshops
Carpet adhesive, paint, thinset and old leveling compounds ground off to sound concrete, and high spots brought down to open the surface for coatings or a fresh pour. Every grinder runs shrouded on a HEPA H13 vacuum to keep dust to a minimum.
IDEAL FOR
- Carpet adhesive, thinset and paint removal
- Epoxy and polished-concrete prep
- Grinding down high spots and trip edges
- Garage floors before coatings
Static cracks chased and filled, spalls and pop-outs rebuilt with epoxy-modified repair mortars, control joints filled flush, and chipped slab edges or ramp lips squared up. Most patch repairs are done the same day we start.
IDEAL FOR
- Cracks and spalls before new flooring
- Garage and driveway slab edges
- Warehouse and parkade joint repair
- Spalls and potholes before coatings
When a coating is too thick or too stubborn for grinding, the scarifier cuts it off — along with trip lips between slabs, failed waterproofing membranes and paint systems on exterior concrete. Leaves a keyed profile ready for toppings or repair.
IDEAL FOR
- Sidewalk and slab trip lips
- Roof-deck and garage membranes
- Heavy elastomeric and epoxy coatings
- Thick adhesive after a tenant move-out
Delaminated, hollow or badly deteriorated concrete doesn't get patched over — it gets chipped out. We remove unsound sections down to solid substrate with electric chipping hammers, tie in rebar where needed, and pour the repair back to level.
IDEAL FOR
- Delaminated and hollow areas
- Full-depth slab repairs
- Prep before new toppings
- Removing failed old patches
Recent projects: real floors, real jobs.
Basement floor leveling in Durham Region, high-rise condo suites and commercial fit-outs in Toronto — a few recent pours. The full gallery has every photo and video.
Who MIR works for: homeowners, condos & contractors.
The same laser-verified concrete floor leveling for a Whitby basement, a Toronto condo tower or a GTA warehouse — pick the one that sounds like you.
Homeowners
Basements, garages & renovations
Basement floor leveling before LVP or hardwood, garage floor grinding before epoxy, cracked slab and driveway repair.
Condo boards & property managers
Common areas, parkades & suites
Parkade patching, trip-hazard removal and common-area floor leveling — with an insurance certificate for your file.
General contractors & builders
Subcontract floor prep
Grinding, scarifying, chipping and self-leveling for condo towers, retail fit-outs and warehouses — on your schedule, with a flatness report.
Before and after leveling: a 26 mm example.
A slab that looks fine to the eye can swing close to an inch corner to corner — enough to telegraph through LVP, crack tile grout and void flooring warranties. This cross-section is an illustrative example, not a specific job: drag the line to compare an unlevel slab with a leveled one.
How concrete floor leveling works: four steps.
MIR levels a concrete floor in four steps: measure, prep, pour and verify. Each step closes the gap to the finished-floor datum (the figures below are an example).
Measure
On-site rotary-laser survey of your slab. You get a deviation map and a fixed-price quote within 48 hours of the visit.
Prep
Grinding, scarifying or chipping as the survey calls for. HEPA extraction and containment keep your space clean while we do it.
Pour
Self-leveling underlayment pumped, raked and spiked-rolled to a laser-set datum. Walkable in 2–4 hours in most conditions.
Verify
We re-measure everything with the same laser we set it with. You get a written flatness report for your records.
Self-leveling specifications.
Every MIR job is set with a rotary laser and poured to a written flatness tolerance, typically ±2 mm over 3 m. Each floor is re-measured before handover, and the customer receives a written flatness report.
Request an on-site measurementPROJECT SPEC CALLS FOR FF/FL NUMBERS (ASTM E1155)? TELL US AT THE QUOTE STAGE.
- Flatness tolerance, typical
- ±2 mm / 3 m
- Tolerance check
- Rotary-laser grid survey
- Underlayment
- Pump-grade cementitious
- Walkable cure
- 2–4 hours
- Floor-covering ready
- 24–72 hours
- Dust control
- HEPA H13 extraction
- Coverage
- Fully insured
- Quote turnaround
- 48 h after the site visit
About MIR: one Whitby crew, five trades.
MIR Concrete Floor Leveling is a concrete floor contractor based at 7 Magpie Way, Whitby, ON L1N 0K7, serving Durham Region, Toronto and the GTA. One crew handles five trades — self-leveling concrete, concrete grinding, patching and crack repair, scarifying and chipping — for homeowners, condo boards and general contractors. Self-leveling pours are laser-set to ±2 mm over 3 m, walkable in 2–4 hours and ready for floor coverings in 24–72 hours. Every job starts with a free rotary-laser survey and a fixed-price quote within 48 hours of the visit, and ends with a written flatness report.
Google reviews: real customers only.
We only publish reviews from real MIR customers. Read what homeowners, condo managers and contractors say about our concrete floor leveling on our Google Business Profile — and if we've worked on your floor, we'd be grateful for yours.
MIR Concrete Floor Leveling on Google
7 Magpie Way, Whitby, ON L1N 0K7
Service area: Whitby, Durham Region, Toronto & the GTA.
MIR is based at 7 Magpie Way in Whitby and works from Oshawa to Oakville and north to Newmarket. Tap your area for local details — Durham Region, Toronto and GTA jobs all start with a free on-site measurement.
OUTSIDE THE GTA? WE CAN STILL TAKE THE JOB — JUST ASK.
Concrete floor leveling questions, answered.
Self-leveling concrete floor leveling in Ontario typically costs $4–$9 per sq ft installed, including grinding, crack repair, priming and a laser-checked flat result. Grinding and patching on their own are usually quoted by the day. The final price depends on the area, how far out of level the slab is and how much prep it needs, so MIR gives a fixed-price quote after a free on-site laser measurement.
Most self-leveling underlayments we use are walkable in 2–4 hours. Floor coverings usually go down at 24–72 hours depending on the product and pour thickness. We give you the exact window for your slab in writing, so your flooring contractor can book their crew around it.
MIR keeps grinding dust to a minimum. Every grinder and scarifier is shrouded and connected to a HEPA H13 vacuum, and work areas are sealed with plastic sheeting, with negative air where the space calls for it. Expect a light clean-up, not a dusty house.
Often yes — but never directly over loose material. Thick residues get ground or scarified off first; sound, well-bonded coatings can sometimes be scarified to a profile and primed. We test adhesion on site and tell you honestly when full removal is the safer call.
Almost always. An uneven concrete floor is usually fixed by grinding the high spots, patching cracks and pouring self-leveling concrete over the existing slab: no break-out, no new slab, and walkable in 2–4 hours.
MIR is based at 7 Magpie Way in Whitby, Ontario, and works across Whitby, Durham Region (Oshawa, Ajax, Pickering, Clarington) and Toronto and the GTA, from Oshawa to Oakville. The on-site measurement is free anywhere in that area.
It doesn't leave the job until it does. We re-measure every pour with the same laser we set it with and hand you a written flatness report showing the result against the tolerance we agreed in your quote.
Free concrete floor estimate: tell us about your floor.
Fill in the form and WhatsApp opens with your details ready to send — or just call. We book a free on-site laser measurement anywhere in Whitby, Durham Region, Toronto or the GTA.
- 1We reply within one business dayUsually much sooner during working hours.
- 2Free on-site laser measurementWe map your slab and check what prep it needs.
- 3Fixed-price quote within 48 hoursThe quote is what you pay: no surprises on the invoice.