Concrete Grinding & Surface Preparation in Lawrence IN - a slab your coating can grip
Peeling coating, old glue or a slick, sealed slab? We grind and clean the concrete so your new floor bonds and stays put.
- Licensed and insured.
- Free on-site estimates.
- Expect a reply within 1 business day.
Why does concrete have to be ground before epoxy goes down?
Concrete grinding and surface preparation in Lawrence, IN means cutting the top of your slab with diamond tooling and clearing off old coatings, glue and grime, so a new epoxy or other coating bonds to sound concrete instead of peeling up.
Most floors I'm called to already have something on them, like an old coat lifting in a garage, glue left from carpet or tile in a basement, or years of oil soaked into a shop floor. The price moves with the floor's size, how much has to come off before we reach clean concrete, how much hand work the edges, corners and posts need, and how rough your new coating needs the surface. The schedule turns mostly on that same removal and on what the moisture check shows, because a slab that's too damp for your coating changes the plan. If you're planning garage floor coatings, this is the work underneath them, and your written estimate spells out what we'd do and why before you say yes.
How can you tell your concrete needs prep before a coating?
Old coating peeling up
Flakes and bare patches in an old paint or epoxy coat usually mean it never bonded well to the concrete underneath. Coating over it ties your new floor to a layer that's already letting go, and the longer it sits, the more dirt and water work in under the edges.
Oil stains that won't scrub out
Dark spots that come back after you clean them mean oil has soaked into the concrete, which is common where cars park. A coating rolled over them tends to lift right at those spots, so they need real cleaning as part of the prep, not a quick wipe.
Water beads on the surface
When a splash of water sits in beads instead of darkening the concrete, there's usually a sealer or old finish on it. Nothing new will grip that, and finding it now is a lot cheaper than finding it under a floor that's peeling.
How we handle concrete grinding and surface preparation
Rough isn't enough on its own. We start by taking off whatever is on the slab, whether that's old coating, glue or sealer, with the machine that suits it, then grind the floor to the profile, or surface roughness, that your coating calls for. After that we clean off the dust and oil, vacuuming out the fine dust that grinding packs into the concrete's pores, because a dirty floor works against the bond however well it's ground.
A ground slab is the start of most of our floors, not only coatings. If you'd rather keep bare concrete, concrete sealing protects it once it's open and clean, and when the surface is too worn or pitted to coat directly, we build it back with concrete resurfacing and overlays.
Diamond grinding
This suits most garage, basement and shop floors with a thin coat, light glue or bare concrete, because it opens the surface evenly and reaches edges, corners and tight rooms. It's the main tool on nearly every floor we prep.
Scarifying thick coatings and overlays
A scarifier is a different machine that chips away a thick old coating or overlay with rows of cutters instead of grinding it down. It leaves a rougher surface, so it's the right call for heavy buildup and the wrong one for a light job.
Both machines on one floor
Heavy removal often takes the scarifier to get the bulk off and the grinder afterward to even out the rough finish it leaves. Your estimate will say whether your floor needs one machine or both.
Get a free estimate for your slab prep
Send the form and we'll reply within one business day to set up a free on-site estimate. I'll check your slab and write up what we'd do and why, with no pressure to book.
(317) 463-6468- Based in
- Lawrence, IN 46226
- Hours
- Mon–Fri: 8 AM–10 PM, Sat–Sun: 6 AM–9 PM
What happens after you call us about grinding your floor?
Here's how a grinding job runs from your side, from the first call to the final walk-through, and what you'll have in writing before any work starts.
Call or send a request
Call (317) 463-6468 or fill out the form, and if you can, tell us the floor's rough size, what's on it now and the coating you have in mind. We'll set up a time for me to come out.
I check your slab in person
I look at the floor, check the concrete for moisture and old coatings, and talk through which system fits how you use the space. Bring your questions, since this is the visit where they get answered.
Review your written estimate
You get a written estimate that lays out what we'd remove, grind and clean and why each part is there. That's how you see what you're paying for before you say yes.
We prep, install and walk it
Once you're ready, our crew preps the slab and puts the floor down, and I check the work along the way. At the end we walk the finished floor together.
Why Lawrence owners call us to prep their concrete
The owner looks at your slab
I come out to look at the floor and write the estimate myself. You hear what your concrete needs from the person who'll answer for the job, not from a salesperson.
In business since 2017
I started this business in Lawrence in 2017 after running prep crews for another flooring owner and sorting out the floors that didn't hold. That's why careful slab prep under coatings is what we're known for.
Our own crew, checked throughout
Our own crew does the prep and the install, and I check the work along the way. The person who looked at your slab is the one making sure it's ground and clean before anything goes on it.
Licensed and insured, just ask
We're licensed and insured, and you're welcome to ask about it when I'm out to see the floor. Comparing that across quotes takes a minute and saves guessing later.
The coating only lasts as long as the concrete under it is sound and clean, so request an estimate or call (317) 463-6468 and I'll come take a look.
Concrete grinding, sealing and overlays in Lawrence
In Lawrence, the city's Department of Public Works issues every building permit, and the city requires one before anyone builds, alters or repairs a building or structure. That general rule doesn't say whether grinding and coating your floor counts, so the department is the place to ask about your own project. When a job needs a permit, we file for it with the department and tell you where it stands, and if it's unclear, we check with that office before we start. Applications go through the city website or the permits window at the Lawrence Government Center.
Our calls here are mostly garages with oil soaked in, basements with glue left from old carpet or tile, and shop and warehouse floors under years of buildup, and each one gets the same order of removal, grinding and cleaning. We see the same floors on jobs in Fishers and Greenfield.
Questions about concrete grinding in Lawrence
What is the best way to prepare concrete for epoxy, grinding or acid etching?
Grinding is the better choice for an epoxy floor. One coatings maker reports that the prevailing view among professionals treats acid etching as inadequate prep for resin flooring, so if a quote you're comparing is built on etching, weigh it against that. We grind the slabs we coat instead of etching them.
Does old carpet or tile glue have to come off before an epoxy coating?
Yes, old mastic, glue and adhesive have to come off, because a new coating needs to bond to the concrete itself and can't hold onto a layer of old glue. When I come out, I'll see how much is there and write its removal into your estimate.
How rough does concrete need to be for an epoxy coating?
Thick, high-build epoxy and urethane coatings are commonly specified at CSP 3 to 5 on the Concrete Surface Profile scale, which contractors use to grade how rough a prepared slab is. The right number for your floor comes from the coating you pick, so ask which profile it calls for, and I'll tell you which one we're grinding to.
How do I know if my concrete is too wet to coat?
A moisture test tells you, either by measuring the humidity inside the concrete or the rate moisture vapor leaves its surface. The limit your slab has to meet is set by the coating maker or the project specification, and I check the concrete for moisture when I come out so you know where it stands before anything is booked.
How much does concrete grinding cost in Lawrence, IN?
Your price is set by the floor's size, what has to come off it and how rough your new coating needs the surface. A bare slab that only needs grinding and cleaning costs less than one with thick old epoxy, heavy basement glue or deep oil stains, because those take more passes and more cleanup. I write the figure for your floor into the estimate after I've seen it.
How do I check that a contractor is registered in Lawrence?
Look the contractor up on the public works department's website or call the department at 317-545-8787, because Lawrence requires anyone who contracts for construction work on a property to be a City of Lawrence Registered Contractor. Registration is also what lets a hired contractor get permits, while in certain cases a homeowner doing the work themselves can get one directly.
Related services that start with a prepared slab
Concrete Sealing
A sealer protects bare concrete from water and oil stains when you'd rather keep the gray look than cover it with a coating.
Concrete Resurfacing & Overlays
When the slab is pitted, flaking or patched past what grinding can even out, an overlay gives you a new, sound surface to coat or finish.
Service areas around Lawrence for concrete prep
Lawrence Epoxy Floors and Concrete is based in Lawrence, Indiana, and we prep slabs across the cities around it, including Fishers and Carmel. The 12 cities below each have their own page, and if yours isn't listed, just ask.
Lawrence, IN
Get your slab checked before you coat
A look at the concrete before you buy a coating can catch moisture or an old sealer while they're still easy to plan around.