When a slab dips and humps, tile cracks, plank shows lippage, and polish telegraphs every patch. Self-leveling underlayment fixes the substrate before the finish goes on. Oshawa Concrete measures the slab, primes it, pours a self-leveling compound that spreads and settles to a perfectly flat surface, and cures it hard enough to take tile, plank, polish, micro-topping or stain. No shimming. No rework. One written estimate, one firm finish date.
Why Finished Floors Fail Without Flat Concrete Prep
A slab that looks level to the eye often sits 1/4 inch high here, 1/2 inch low there. Tile grout cracks at the low spots. Vinyl plank lips at the high spots. Polished concrete shows every patch and dip. Micro-topping cracks because the substrate moves. The finish is not the problem. The slab is.
Self-leveling underlayment is the fix that happens before the finish. We prime the slab with a manufacturer-matched primer, mix the self-leveling compound to the published water ratio, pour it onto the floor, and let gravity do the work. It spreads, settles, and cures into a hard, bonded surface that is actually flat.
From there, the finish goes on a substrate that can hold it. Polished concrete shines without telegraphing. Stained concrete sits even. Epoxy coating bonds without voids. Micro-topping cures without cracking. The result is a floor that lasts.
Recent work
The sequence
How Self-Leveling Concrete Gets Poured in Oshawa
Measure and assess the substrate
We check moisture, identify high and low spots with a straightedge, and confirm the slab is sound. We also pick the right self-leveling product and primer for the substrate type (concrete, plywood, existing tile).
Prime and set the perimeter
The substrate gets primed with the matched primer. We mark the finished elevation and contain the perimeter so the leveler stays where it should and does not run into adjacent spaces.
Mix, pour and rake to elevation
The self-leveling compound is mixed to the published water ratio, poured onto the primed substrate, and gently raked or smoothed to the marked elevation. Gravity handles the actual leveling.
Cure and prepare for the finish
The compound sets to walkable in hours and cures fully over the manufacturer's window. The new surface is flat, sound, and ready for tile, plank, polish or any other finish without further levelling.
Common applications
Kitchen Renovations, Tile, Polished Concrete All Use It
Renovation kitchens and bathrooms are the most common use. Old slabs, patched slabs, slabs in 1970s homes rarely sit at the flatness modern finishes need. Self-leveling underlayment turns them into a usable substrate without a tear-out and haul-away.
It also goes under polished concrete when the slab is not polish-ready, under micro-topping when extra fill is needed, and under heated floor systems as part of the radiant heat stack. The flatness is what every system above depends on to perform.
When you need it, what it bonds to, thickness and finishes above in Oshawa.
Not always. If the substrate is already within tolerance for the finish you want, self-leveling is unnecessary. We measure first; if the dips and humps fall outside what the finish can handle, self-leveling is the honest fix.
All three, with the right primer and product for the substrate. We pick the matched primer and self-leveling product for what the floor sits on, so the bond is engineered for the surface, not assumed.
Most products handle up to about an inch in a single pour, more in lifts with proper bonding. We size the pour to the substrate's worst dip and the finish's flatness requirement.
No, it is a finishing prep, not a structural floor. It bonds to a sound substrate and brings it flat. If the slab below is structurally compromised, that has to be fixed first.
Walkable in a few hours, ready for tile or plank typically the next day, ready for polishing or staining once fully cured to the manufacturer's published window. We give you the exact timeline on the project.
Homeowner reviews
What Oshawa Homeowners Say About Their Self-Leveling Pours
Old kitchen slab was a wave. Self-leveling brought it dead flat and the tile went down without a single shim. The result looks like a brand-new build.
G. R.
Oshawa
★★★★★
Polished the basement floor after a self-leveling pour. The polish was perfect because the substrate was actually flat for the first time.
V. D.
Durham
★★★★★
Plywood substrate in our addition. They primed it properly and the leveler bonded so well I forgot it was on plywood. The plank floor sits perfect.
O. B.
Brampton
★★★★★
Heated floor underlayment plus self-leveling plus micro-topping plus polish. Whole stack done in sequence and the finished floor is dead flat with even radiant heat.
I. U.
Mississauga
From the blog
Concrete Guides & Articles
Practical reading on planning, finishes and caring for concrete in Oshawa.
Tell us the substrate type (concrete, plywood, tile), the finish you want above (tile, plank, polish, micro-topping), and we will measure, plan the pour, and send a written quote within one business day.
