Concrete scarifying & coating removal
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. It leaves a keyed profile ready for toppings or repair.
Faster quote: send photos of your floor on WhatsApp
What is concrete scarifying?
Concrete scarifying (also called milling or planing) uses rows of hardened cutters on a rotating drum to chip away the top few millimetres of a slab. It removes material much faster than grinding, which makes it the right tool for thick coatings, membranes and uneven joints.
The result is a rough, keyed surface — exactly what a repair mortar, topping or self-leveling concrete pour needs to bond.
Scarifying vs. grinding: which does your floor need?
Grinding is for thin materials and a controlled, smooth profile — glue, paint, sealers and light leveling. Scarifying is for thick, rubbery or layered systems and for taking down height differences between slabs.
Many jobs use both: scarify to get the heavy material off, then concrete grinding to refine the profile before a coating or pour.
| Grinding | Scarifying | |
|---|---|---|
| Removes | Glue, paint, sealers and light leveling compound | Thick, rubbery or layered coatings, membranes and trip lips |
| Tooling | Diamond tooling on a planetary grinder, 16–400 grit | Rows of hardened cutters on a rotating drum |
| Speed on thick material | Slower | Much faster |
| Surface left | Smooth, controlled profile | Rough, keyed profile for bonding |
| Typical next step | Coating, polish or self-leveling pour | Grinding, repair mortar, topping or self-leveling pour |
Industrial floor scarifying in Toronto
MIR's industrial floor scarifying in Toronto and the GTA covers warehouses, loading areas, parkade decks and plant floors: failed coatings and membranes come off in one pass and the slab is prepped for whatever goes on next, for general contractors and property managers.
Trip-hazard removal on sidewalks & slabs
Raised slab edges on walkways, garage floors and common areas are a liability. Scarifying takes the lip down to a gentle transition without replacing the slab — a quick fix property managers use before an insurance inspection. See our commercial & condo page.
How our concrete scarifying works
- STEP 01
Assess
Identify the coating or membrane and the depth to remove.
- STEP 02
Mill
Scarify in passes under dust extraction.
- STEP 03
Refine
Grind or patch as needed for the next product.
- STEP 04
Prep
Hand back a keyed, clean profile ready for topping, coating or pour.
Concrete Scarifying, on site.
Concrete Scarifying questions.
Yes. Thick epoxy, elastomeric and membrane systems are exactly what scarifying is for. Thin coatings are usually faster to grind.
Yes — intentionally. Scarifying leaves a keyed profile for bonding. If you need a smooth finished floor, we follow up with grinding, patching or a self-leveling pour.
Yes. We remove paint systems, failed membranes and trip lips on exterior slabs, walkways and garage decks.
Not sure what your floor needs? We measure it for free.
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.