What Actually Moves the Price of an Epoxy Floor
Price Is Mostly Labour
The materials in a coated floor are a smaller share of the total than most people expect. What you are buying is crew hours, and everything that adds hours adds cost. Seen that way, the differences between quotes on the same Allen garage stop looking arbitrary.
Square Footage, and Why Small Jobs Carry a Minimum
Bigger floors cost more in total but usually less per square foot, because a large share of the job is fixed no matter how small the slab is. Loading grinders and vacuums, masking, mixing, cleaning tools and getting a crew to the address cost the same for a single car garage as for a three car one. That fixed mobilisation is why almost every contractor has a job minimum.
The Condition of the Slab You Already Have
This is the single biggest swing factor and the one buyers underestimate. A clean, sound, reasonably flat slab needs profiling and little else. A slab with old paint or adhesive, oil that has soaked in, pitting or previous patch repairs needs far more work first. Older homes around Allen often have decades of accumulated stains and a previous coating attempt underneath. None of that shows in a product brochure but all of it shows in the hours.
The System and the Number of Coats
A system is not one product, it is a sequence. A basic build might be a primer, a body coat and a topcoat. Heavier builds add coats, and every additional coat is another day the crew is on site and another cure window before the next step. Ask how many coats a quote includes rather than which brand it uses, because the coat count tells you more about the price than the label does.
Finish Choice Is a Labour Difference
People treat flake, solid colour and metallic as material choices. They are mainly labour choices. A solid colour is the most direct. A flake floor adds broadcasting the flake, then scraping and vacuuming back the excess before the clear coat goes on, which is slow physical work. Finishes needing manipulation while wet ask for more skill and time again. The look you pick quietly sets the schedule.
Edges, Obstacles and Cut In Work
Open floor goes fast. Everything else does not. Perimeters, door thresholds, expansion joints, floor drains, posts, water heater platforms and anything bolted down all have to be worked by hand with small tools. A garage full of built in cabinets and a workbench has less open floor and more edge than its square footage suggests, and it will price accordingly. When you count obstacles before you get quotes, you can predict which way the number will move.
Access to the Slab
A crew needs to get grinding equipment onto the concrete. A ground level attached garage is straightforward. A basement, an upper level, a narrow gate, a long carry from the truck, or a floor reachable only through finished living space all change what equipment can be used. Limited access sometimes forces smaller, slower machines, which shows up directly in hours.
Scheduling Constraints
Work that has to happen at night, over a weekend, or in phases so half the space stays usable costs more than a straight run of consecutive days. Splitting a floor into sections means repeating setup, masking and edge work at every boundary.
Why the Cheapest Quote Is Usually Different
When one bid comes in well under the others, the gap is rarely the product. It is almost always preparation: acid etching or a light sanding instead of mechanical grinding, repairs skipped, fewer coats. The materials are similar. The hours are not, and the hours are what the floor is standing on.
What a Per Square Foot Number Hides
A per foot figure is useful shorthand and a poor comparison tool on its own. It assumes an average slab, average access and a standard build, and says nothing about which repairs, how many coats or how much edge work sit inside it. Two identical per foot numbers can describe very different jobs. Ask what is included and what would be extra.