FLOOR LEVELING DENVER · COMMERCIAL & INDUSTRIAL

Concrete Floor Leveling in Denver, Colorado

All West Surface Prep flattens uneven existing concrete so your finish flooring lands flat and true. We grind down high spots and apply self-leveling underlayment to low areas across Denver and the Colorado Front Range. All of that happens on existing slabs, so we do not pour new structural concrete.

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Floor leveling: flat before the finish goes down

Uneven slabs cause failed tile, hollow spots, lippage, and rocking equipment, so the problem usually shows up after the finish floor is already down. This matters most on tenant build-outs and renovations, where an old slab has to accept new flooring. We read the slab with a straightedge and grinding, take down the high spots, and fill the low areas with self-leveling underlayment so the surface meets the flatness the finish flooring needs.

How floor leveling works on a slab

We map the floor to find the high and low points, then grind the highs flat with our diamond equipment. Where areas sit low, we prime and place a self-leveling underlayment rated for the finished floor and traffic. Once it cures, the result is a flat, sound surface ready for tile, LVT, coatings, or polish. We contain dust the whole time, so the rest of the building keeps running.

Who we do this for

Why All West Surface Prep

We have flattened and prepped floors across Colorado since 1990. Because we also do the polishing and coatings, we level to the tolerance the final floor actually needs instead of guessing. We bring the grinders and the crew, then correct the slab in place so the flooring installer gets a ready surface.

What does floor leveling actually mean?

Concrete floor leveling means correcting the elevation of a slab that already exists, by grinding down high spots and applying self-leveling underlayment to fill low spots. It does not mean placing new structural concrete. All West Surface Prep does not pour concrete.

This is the single most common misunderstanding in the trade, and it deserves a blunt answer, because it changes who you should call. If a slab needs replacement, tear-out, or new placement, that is a concrete contractor. If a slab is in place and out of tolerance, that is this page.

How do you know a floor needs leveling?

Usually the flooring installer finds it. Luxury vinyl plank telegraphs every dip. Large-format tile cracks or lippage appears at the edges. Racking will not plumb. Doors bind. An epoxy or polished finish reveals waves that carpet was hiding for twenty years.

Flatness and levelness are separate measurements, and specifications usually call out both as F-numbers. A floor can be dead level and still be wavy, or perfectly flat and sloped. Which problem you have determines whether the fix is grinding, underlayment, or both.

Grinding down or filling in?

Grinding removes material and nothing else. It fixes high spots, curled slab edges, trowel ridges, and the raised side of a joint. It is fast, it generates no cure time, and it cannot help a low spot.

Self-leveling underlayment is a cementitious material poured over the prepared slab that flows out to a flat plane and hardens. It fills low areas and can correct a broad wave that grinding alone would never reach without cutting dangerously deep.

Most real floors need both, with grinding knocking the peaks down so the underlayment does not have to be poured thick enough to bury them. Going underlayment-only on a floor with significant high spots means a much deeper and much more expensive pour.

What preparation does underlayment require?

Self-leveling underlayment bonds to the slab, so the slab has to be clean, sound, and open. Coatings, adhesives, curing compounds, and laitance all have to come off first, which is concrete surface preparation work using grinding or shot blasting depending on area and what is present.

Slab moisture gets tested where the finish system calls for it, because underlayment and the flooring above it can both be affected by vapor drive. Where readings require it, moisture mitigation goes in first. Cracks and joints get treated as well, covered under joint filling, since underlayment poured across a moving crack will crack in the same place.

How long does floor leveling take?

Grinding is same-day work on most floors. Underlayment needs cure time before the finish goes down, and that window depends on the product, the thickness poured, and site conditions rather than on anyone’s preference. AWSP confirms it against the manufacturer data sheet before committing to a schedule, because this is a common place for a flooring installer to arrive to a floor that is not ready.

Crew depth is 10 to 15 cross-trained people and mobilization on most projects is 24 to 48 hours. The same crew handles the prep and the leveling, so there is no gap between trades where responsibility gets lost.

What does floor leveling cost?

Grinding is priced by area and by how much material has to come off. Underlayment is priced by area and by depth, and depth is where budgets move, because a pour twice as thick costs roughly twice as much in material before labor.

That is the argument for grinding the high spots down first rather than burying them. It is also the argument for measuring the floor properly before anyone quotes it, since a bid based on an assumed thickness is a bid that will change.

The other cost driver is what has to come off the slab before underlayment can bond. A floor carrying old adhesive and cutback is a preparation job with a leveling scope attached rather than the other way around.

AWSP serves Colorado, Wyoming, New Mexico, Utah, South Dakota, and Arizona from Commerce City. See the Colorado service area or return to All West Surface Prep. Call (303) 573-7737, Monday through Friday, 8:00am to 5:00pm Mountain Time.

Flatness targets come from ACI 117, expressed as F-numbers, so the finish flooring submittal usually sets the number we work to.

Floor leveling FAQ