Nobody can quote a Chicago epoxy floor from a phone call, and a number printed on a web page tells you even less. Two garages with the same footprint can need very different amounts of work: one sits behind a 1920s bungalow off an alley, the other under a 1990s house in Naperville. So every floor is priced after a free on-site visit, and this guide walks through what the installer is looking at while the price takes shape.
Below: the factors that push a quote up or down, how the age of a Chicago-area house shows in its concrete, what changes for a basement or a business floor, and what happens at the estimate. If you want to see colors and finishes first, Floor Studio lets you try them on screen.
The Price Factors in One Table
| What the installer looks at | Why it changes the price |
|---|---|
| Size of the space | More square feet means more material and more hours on site. A two-car garage is usually somewhere around 400 to 500 square feet; a city alley garage is often smaller. |
| Slab condition and repairs | Cracks, spalls, pitting, oil and salt-scaled patches by the door are ground out or filled before anything is coated. A slab that has carried salty cars through decades of winters usually needs more of this. |
| Moisture | The slab is checked before it is priced. Water coming in has to be dealt with at its source before a floor goes down. |
| System and finish | Flake, metallic and solid-color epoxy are built differently, and the flake color, flake density and topcoat sheen are your call. |
| Prep and coating removal | Every garage floor is diamond ground. Old paint, a failed kit coating or a builder’s sealer has to come off first. |
| Access and layout | Basement stairs, steps, floor drains, posts and tight corners mean more hand work than an open rectangle. |
Try finishes on a floor like yours and get a ballpark figure with your free-estimate request.
Open Floor Studio →Why no price list? A printed figure has to assume an average slab, and the Chicago area does not have one. Nearly four in ten homes in the city were built before 1940, while Naperville’s median house dates from 1990, and the concrete under each has had a very different life. A garage with a peeling kit coating and scaled concrete by the door is a different job from a clean slab that has never been coated. The number worth planning around is the one the installer gives you after seeing the floor.
Garage Size: Why Square Footage Isn’t the Whole Story
Square footage sets the scale of the job, but the price does not rise in a straight line with it. Some of the work costs about the same on any floor: hauling in the grinder and dust extraction, masking the walls and the door track, and the waiting time between coats. Most garage floors are done in one to two days, so a one-car alley garage carries that fixed effort on fewer square feet and costs more per foot than a three-car garage in the suburbs.
When you call, a few details make the conversation useful:
- Length and width wall to wall, including the strip under the overhead door.
- Anything that stays put: built-in cabinets, a bolted workbench, a furnace or water heater on the slab.
- What the floor looks like now: bare, painted or coated before, and any cracks, oil spots or flaking by the door.
None of that replaces the visit, but it tells the installer what to bring and what to look at closely.
Basement Floors: Checked for Moisture, Then Priced
Downstairs, the work on a basement floor is the same as in a garage: grind, repair the cracks, apply the system you picked. Since no car parks on it, a basement is where metallic and solid-color finishes come into their own. The one thing never included in a basement price is a fix for water getting in.
Chicago basements deserve a careful look. Most of the city’s old bungalows and two-flats sit over a full basement, the ground beneath them is dense glacial clay that holds water, and most sewers in the area carry stormwater and sewage in the same pipes, which is why heavy summer storms back up into basements. In the two weeks after the July 2, 2023 storm, when O’Hare recorded 3.35 inches of rain in a day, Chicagoans filed more than 12,000 basement-flooding reports with 311. So every basement slab is checked for moisture before it is priced. If it reads dry, nothing changes. If it does not, the water has to be fixed at its source first, and that is a plumbing or drainage job, not a flooring one.
A floor coating does not keep water out of a basement, and nobody should sell it as if it did. Its job is to turn a dusty, porous slab into a floor that sweeps and mops clean.
Five Factors Behind a Chicago Quote
1. How old the slab is and what it has been through
Concrete that has carried salted cars through Chicago winters usually has more to fix: hairline cracks, chipped joints, oil soaked into the surface, and scaled patches by the door where salty slush sat and froze. The city has reported spreading about 215,000 tons of road salt a year on its streets, and a share of what lands on a tire ends up on the garage floor. Each repair is hand work before coating starts. Hairline cracks are normal and are filled during prep; the coating is not a crack cover.
Newer concrete has its own catch. It has to cure fully before it is coated, for as long as the coating maker requires, and builders often finish a new garage with a curing compound or sealer that must be ground off. If the house is a recent build in Schaumburg or anywhere else, say so when you call so the schedule lines up.
2. Moisture in the slab
Vapor rising through concrete is among the commonest reasons a coating lets go, which is why the check happens before the price is set. A dry reading changes nothing. A wet one means the water gets dealt with first, not sealed in under a new floor.
3. Size, shape and access
Layout is the quiet factor. A floor drain, a step into the house, steel posts, cabinets the slab runs under, or a basement reached by a steep, narrow stair all add hand work and carrying. The quickest floor to coat is an open rectangle with a wide door; a basement chopped into small rooms is the slowest.
4. The system and finish you choose
Flake is the usual garage choice: an epoxy base coat, a full broadcast of vinyl flake in the color and density you pick, and a protective clear topcoat. Solid-color epoxy is the simplest build and the usual pick for a shop or office floor. Metallic epoxy takes more hand work and suits basements and showrooms. Topcoats come in matte, semi-gloss or high gloss, and a slip-resistant additive can go into the finish. Each choice moves material and labor a little, and the quote prices exactly what you pick.
5. Prep: grinding and coating removal
Every garage floor is diamond ground before it is coated, so grinding is in every price. What varies is what has to come off first. A bare slab grinds quickly. A garage with old paint, a peeling kit coating or a builder’s sealer needs that layer stripped before the new system can bond. If you know the floor was coated before, say so when you call.
Want a Real Number for Your Floor?
Book a free on-site estimate. The installer measures, inspects the slab and prices your floor, with no obligation.
Bungalow Slabs, 1970s Suburbs and 1990s Naperville
Housing around Chicago comes in every age, and so does its concrete. The American Community Survey (2020–2024) dates the city’s median home to 1953, with a wide spread on either side:
- Chicago itself. Nearly four in ten homes were built before 1940. More than 80,000 brick bungalows from 1910 to the mid-1930s and 76,000-plus two-flats sit over full basements, with detached garages off the alley. Slabs that old tend to need more crack and joint repair, and some carry layers of paint or patching from earlier owners.
- Addison and Arlington Heights. Their median homes date from 1972 and 1974, so most of these attached garages have fifty winters behind them: usually solid concrete, often stained, sometimes carrying an old paint or sealer layer.
- Schaumburg and Lisle, Illinois. Schaumburg’s biggest building decade was the 1970s and its median home dates from 1979; Lisle’s is 1983, with a good share from the 1980s. These garages have seen plenty of salt, so check the strip inside the door for scaling.
- Naperville and the newer subdivisions. Naperville’s median home dates from 1990, and about a quarter of its houses went up in that decade alone. A younger slab that has never been coated is often the most straightforward job.
These are town-wide medians; your own house can be older or newer. Either way, the condition of your slab, not the ZIP code, sets the number.
Will the Time of Year Affect the Price?
Not much, but it shapes the schedule. At O’Hare the median first freeze falls around October 28 and the last around April 16, January’s normal high is 31.6°F, and summer brings about 17 days at 90°F or hotter with July dew points in the low 60s (NOAA 1991–2020 normals). Coatings react to both ends of that. On a humid July morning the slab and the air are checked before anything is mixed; in a cold garage in January, curing slows and the job may be booked around a milder stretch. The installer works to the slab temperature and the product’s own instructions rather than the calendar. How the two main coating types behave in heat and cold is covered in our coatings comparison.
Commercial Floors Are Quoted Per Project
Business floors vary too much for one figure to mean anything. A retail space, an auto shop bay, a restaurant floor and a warehouse each need a different build and different prep. A restaurant floor has to be smooth and easily cleanable, with coved edges at the wall; a warehouse floor takes forklifts and may need sealed joints and painted aisle lines; a showroom or office leans toward flake or metallic; wet or greasy work areas get a slip-resistant texture.
The installer walks the site, looks at the slab and how the space is used, and prices the project from there. Tell us how much downtime the business can stand and the schedule is built around it. The commercial flooring page covers the options.
How the Free Estimate Works
- Call or send the form. The phone is answered around the clock. Tell us which room, roughly how large, and what is wrong with the floor.
- The on-site visit. The installer measures, looks at cracks, stains and any old coating, checks the slab for moisture, and shows you flake, metallic and solid-color options.
- A free quote. One figure for the finish you chose and the slab you have, and no obligation to go ahead.
- Installation. One to two days for most garage floors; the crew tells you when it can take foot traffic and when the car can return.
- After the job. Questions about care, or anything else, still get answered.
If you are comparing quotes, check that each covers the same five items: grinding, a moisture check, a plan for cracks and old coatings, the topcoat, and the days the garage is out of use. A cheaper quote that skips the grinder is for a different, shorter-lived floor.
Frequently Asked Questions
How much does epoxy flooring cost in Chicago?
Each floor is priced after a free on-site visit. The figure depends on the size of the space, the state of the slab (cracks, old coatings, salt scaling, moisture), the system and finish you choose, and how much prep the concrete needs. Call (773) 938-3823 or request a free estimate online to book the visit; the price comes with no obligation.
Why would two same-size garages be priced differently?
The concrete decides it. A never-coated 1990s garage in Naperville is a quick job next to a century-old alley garage in Chicago carrying cracks, oil and a peeling coating that has to be stripped. Moisture, layout and finish shift the figure too.
Is a basement floor priced higher than a garage?
Not as a rule. Downstairs the steps are the same: grind, repair, coat. Moisture is what separates the two, so each basement slab is checked first, and water coming in gets fixed at the source before any coating. A coating is not a fix for a wet basement.
Is there a charge for the estimate?
There is no charge. The visit is free and carries no obligation; it exists so the installer can measure the floor and look at the slab before putting a number on it. Book one at (773) 938-3823.
How long will installation take?
Most garage floors are done in one to two days. The crew tells you when it is fine to walk on and when the car can go back in.
How are commercial floors priced?
Project by project, after a walk-through. Traffic, chemicals, heat, water and the hours the space can close all change the right system, so a single number would mislead.
Related Articles
Why Chicago Epoxy Floors Peel at the Garage Door
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Epoxy vs. Polyaspartic in Chicago: How the Two Compare
How the two coatings differ, and what Chicago’s road salt, humid summers and hot tires ask of a garage floor.
Is Epoxy Flooring Worth It in Chicago? Pros and Cons
An honest look at what a coated floor does for a Chicago home, what it can’t do, and when to wait.