
The Epoxy Garage Floor Process, Start to Finish
An epoxy garage floor job starts with a walk of the slab, a crack and spall map and a moisture test. After that we grind, vacuum, repair, prime, build the base coat, broadcast flake or quartz if the system calls for it, scrape and vacuum again, and seal with a clear topcoat.
The floor is ready for foot traffic before it is ready for a car, and we give you the dates for both in writing. Parking too early on a coating that has not reached full cure is one of the most common ways a new floor gets marked.
Attached Garages, Dust and Odor Control
In an attached garage the house shares a wall, a door and sometimes an air path with the work. Our grinders run with vacuum dust capture at the machine, and we seal the house door and plan around the furnace and any return air close to the garage.
We offer low-odor products for attached garages as a comfort and re-entry choice. They are not an Iowa legal requirement, and we do not sell them as one, but many families with kids or pets prefer them.
Moisture Testing a Garage Slab
Moisture moving up through concrete is the most common reason a garage coating blisters or lets go. We test before we price, using a plastic sheet test under ASTM D4263 as a screen and calcium chloride or in-situ relative humidity testing under ASTM F1869 or F2170 where the floor calls for numbers.
The results decide the primer and sometimes the system. A slab that reads high gets a moisture-mitigation primer or a different plan, rather than a standard coat that is likely to fail.
Newer Homes and Damp Garage Slabs
A common surprise is that a newer house does not guarantee a drier garage. The model residential code exempts garage slabs from the under-slab vapor retarder it requires under heated living space, so many garage slabs sit directly on the base course with nothing to slow vapor coming up.
That is why we test every slab whatever year the house was built. Cedar Falls has more than 2,000 housing units built since 2010, and every one of their garages gets the same test as a 1950s slab.
Cracks, Spalls and When to Replace a Slab
We map cracks, spalls and pitting before quoting, and fill or rebuild them with repair materials matched to the coating system. Hairline shrinkage cracks are routine work, and so are small spalls at the edges and control joints.
When a slab has heaved, broken into plates or is crumbling across large areas, we say plainly that it needs repair or replacement before it should be coated. Coating over a slab that is moving or failing only hides the problem for a season.
What Brine and Rock Salt Do to Garage Concrete
Cedar Falls sits in a zone the city lists as Severe for weathering, and from November through March road crews spread salt and brine that ride into the garage on tires. On bare concrete that salty water soaks in, freezes and thaws, and slowly scales the surface.
A sealed, coated floor keeps that water on top where it can be squeegeed out the door. We build garage systems with that use in mind and recommend a slight texture so the floor is not slippery when slush melts.
Cold-Weather Installs in Unheated Garages
Epoxy and polyaspartic coatings need the slab warm enough and comfortably above the dew point to cure correctly. In an unheated garage in mid-winter the slab can stay too cold for days at a time, even when the afternoon air feels mild.
We measure the slab surface and the dew point spread rather than reading the forecast. When those numbers say to wait, we tell you and book the work for spring rather than leave a coating that cures soft or clouds with amine blush.
Hot Tire Pickup and Thin Coatings
Hot tire pickup happens when warm tires soften a thin coating and pull it off the slab as the car cools and drives away. It is the classic failure of one-part paints and thin roll-on products laid over unground concrete.
We prevent it with a ground surface, a 100 percent solids base or a polyurea base coat, and a topcoat built to the thickness written in the quote. A floor that is properly bonded and built does not lift under a warm tire.
Store-Bought Kits Versus a Professional Floor
Big-box epoxy kits are thin, water-based coatings designed to be rolled over an acid-etched slab by a homeowner over a weekend. They can look good at first, but they rarely survive road salt and warm tires for long on an Iowa garage floor.
A professional system starts with mechanical grinding, uses higher-solids materials and builds real thickness with a broadcast and a clear topcoat. The difference shows up in the second and third winter, not the first week.
Epoxy Garage Floor Cost and Price Factors
The price of an epoxy garage floor depends on the size of the garage, the condition of the slab, the number of repairs, whether an old coating has to be removed and which system you choose. A flake system with a polyaspartic topcoat costs more than a single solid color coat, and a slab that tests damp may need a mitigation primer.
We give you a written number after the floor is mapped and tested. The quote lists the product line, coat count and finished thickness, so two bids can be compared on what actually goes down.