The floor you stand on more than any other, and the only one nobody plans for.
Count how many times a week you use the front door. Now count the garage. For most households in Fort Collins the garage is the real entrance, the workshop, the mudroom, and the place the bikes and the freezer live. It gets treated like a slab in a warehouse and then asked to look decent.
That's the gap we work in. A garage floor has a specific daily job: absorb wet salty snow off four tires, get that water out the door, hold up under jack stands and a floor jack, and stay clean enough that you'll actually put a project car on it. Most floors we replace failed at one of those, and usually the reason was decided before the concrete arrived.
Here's the cycle that wrecks garage floors on the north end of the range. You drive home with slush packed in the wheel wells and salt film on the undercarriage. The garage is warmer than outside, so it all melts. Now there's a puddle of salty water sitting on your slab for hours, seeping into the pores, and by morning it has refrozen or evaporated and left the salt behind. Do that four months a year for a decade.
A floor built for it drains. We slope toward the door so that meltwater leaves on its own instead of pooling at the low spot in the middle, and we keep the pitch gentle enough that nothing rolls on you. Under the slab goes plastic sheeting, always, because ground moisture that migrates up through concrete is what causes white crust in spring and what makes a coating peel two years after it went down. Older detached garages near Old Town frequently have no barrier at all, sometimes no real slab, and that's a different conversation than resurfacing a builder floor in Rigden Farm or Fossil Creek.
A garage is a simple shape with an awkward opening on one side, and concrete cracks at re-entrant corners and long unbroken runs. So we joint it as a rectangle: cuts that break the bay into square-ish panels, a line off the door jamb where the opening interrupts the slab, and an isolation joint against the foundation walls so the floor can move without dragging on them. Cut the same day, deep enough to actually control anything.
People sometimes ask us not to cut, because joints collect grit. We cut anyway. The alternative isn't a floor with no lines; it's a floor with one long crack running from the door to the back wall, wandering wherever the shrinkage sends it. Straight sawed lines are quiet. Random cracks are not, and they widen every winter as water gets in.
| What you keep in there | What it does to the floor | What the slab needs |
|---|---|---|
| Daily drivers, November through March | Salt water sitting where it drips off | Pitch to the door, air-entrained mix, and no deicer tracked in loose |
| A project car on jack stands | Four small point loads on a hard surface | Full thickness under the stand locations and a flat plane to set them on |
| A creeper, a floor jack, a tool cart | Wheels catch every ridge and every open joint | A trowel finish rather than a heavy broom, and joints filled if you want smooth |
| A gun safe, a chest freezer, a beer fridge | Concentrated dead weight in one corner forever | Thickened slab or a footing under the spot, decided before we pour |
| Home gym mats and stored gear along the wall | Traps moisture against the surface | A vapor barrier below, so the slab isn't feeding water up into what's on top of it |
Send us three photos: the worst crack, the area by the door, and the back corner. We'll tell you whether it's a coating job or a tear-out.
Still unsure about something?
Call the crew at (303) 569-4046 and we will talk it through.
Get a free, no-obligation estimate from a crew that knows Colorado soil, Colorado weather, and how to finish concrete that lasts.
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