Parker Garage Floor Contractors

Think about what your garage floor puts up with in a single January. Two cars come in with snow packed in the wheel wells, and it melts into a puddle of road brine that sits for six hours. Somebody rolls a floor jack across it. A bike goes down. Trash cans get dragged out, the dog food bin gets scooted sideways, and a wrench lands corner-first from four feet up.

Hardest working slab on the property, and the one nobody thinks about until it starts flaking. We pour new garage floors, replace failed ones, and fix the two things behind most of the trouble here: no vapor barrier underneath, and no fall toward the door.

The plastic under the slab is doing more than you think

Ground moisture moves up. A concrete slab doesn't stop it, it slows it down and then releases it into your garage as vapor. Without a sheet of poly between the base rock and the concrete, that moisture keeps traveling through the slab for the life of the building. You see it as white powdery bloom, as a coating that peels off in sheets a year after it went down, and as boxes that come up damp on the bottom.

We lay a proper vapor barrier under every garage pour, taped at the seams and turned up at the edges. It costs almost nothing now and can't be fixed later. If you ever coat the floor, and most people eventually do, that sheet of plastic decides whether the finish sticks or peels.

What we build into a Parker garage floor

• Base rock placed in lifts and compacted flat, checked with a straightedge
• Vapor barrier under the whole slab, seams lapped and taped, turned up at the edges
• Four inches minimum, five to six where a lift, a truck, or heavy shop equipment lands
• Mesh or number four bar depending on the load, held up off the barrier on chairs
• A consistent fall from the back wall to the door so water leaves instead of pooling
• Isolation joint at the stem wall and around any column so the slab floats free
• Joints cut the day of the pour, breaking the rectangle into near-square panels
• Hard trowel finish for a shop, or a light texture if you want grip on wet days

Finish options and how they hold up day to day

Slope, joints, and the winter routine

Cars carry snow in. That's not avoidable, so the floor needs somewhere to send the melt. We build a gentle continuous fall toward the overhead door, usually about an eighth of an inch per foot, which you can't feel underfoot but which drains a floor completely in a couple of hours. Homes in Stonegate and Canterberry Crossing with side-entry garages sometimes need pitch worked in two directions, and a few shop builds on acreage do better with a trench drain. We look at where water wants to go before setting screeds.

Joint layout is the other piece. A garage is a rectangle with a door opening chopped out of one end, and concrete cracks at re-entrant corners if you let it. So the cuts divide the floor into panels close to square, with a groove running off each side of that opening. Sawed the same day. Not the next morning.

One winter habit worth changing: squeegee the brine puddle out instead of letting it evaporate. Magnesium chloride left standing is corrosive, and the spot where your front tires stop is the first place a Parker garage floor goes.

Nine out of ten failed epoxy jobs we get called about are moisture, not the coating. No plastic under the slab, water pushing up from below, and the finish lets go in sheets. You can test for it in an afternoon. Nobody ever does before they buy the kit.Straight from the crew