Basement Floor Epoxy in Kansas City, KS

Basement floor epoxy is how a lot of Kansas City, Kansas homeowners turn a bare lower level into a room they use every day. Think of a laundry area you can hose off, a weight room, a kids' play space or a bar for watching the Chiefs. The coating itself is the easy part. What matters more is the slab below it and the ground below that. Wyandotte County sits where two big rivers meet, and our springs are wet. So every basement we price starts with a look at moisture.

Water from above and below

Kansas City gets close to 40 inches of rain and melted snow a year. Wikipedia lists 38.13 inches at the Downtown Airport and 39.30 at KCI, with much of it arriving in spring and early summer storms. The Kansas River forms part of the county's southern edge, and Wikipedia's county page notes that Turkey Creek has a long record of flooding. Your house does not need to be near a creek for this to matter. After a week of storms, the soil around a foundation stays damp. That moisture rises through the concrete as vapor, and vapor is what lifts a coating off a basement floor.

Signs we look for on the walk-through

• A white, chalky crust on the slab or along the bottom of the walls
• Dark patches that stay after the rest of the floor dries
• Old floor paint that bubbles or comes off in sheets
• A sump that runs often after rain
• A musty smell when the house has been closed up

None of these rule out a coating. They tell us which primer to use and whether something else needs fixing first.

Testing and what we do with the result

We tape a square of plastic to the slab and check under it for condensation, and we take meter readings in more than one spot. A dry slab gets a standard epoxy primer. A slab with some vapor coming through gets a moisture-tolerant primer made for that level. If water is running in at the cove joint, through a crack or around a pipe, we stop there. That leak needs a waterproofing fix before any floor goes down.

Basements in a city this age

Point2Homes, summarizing Census survey data for 2019 to 2023, puts the median KCK home at 1961. Almost half the housing stock went up before 1960. In those houses we often find old enamel floor paint, nine-inch tile with black glue under it, patches of mortar and slabs poured with no plastic sheet beneath them. Each of those gets ground off or tested before we coat. Newer homes out toward Piper and the Johnson County suburbs tend to have flatter, better slabs, though a corner near a downspout can still read damp after a storm.

Sticky July air

Our summers are humid. The EPA suggests keeping indoor humidity under 60 percent, and ideally between 30 and 50. When warm air meets a cool slab it can bead up on the surface even if no water is coming from below. We ask you to run a dehumidifier for a few days before install day.

Radon is a separate job

A coating and filled cracks will not lower radon, and we never pitch them that way. The Kansas Radon Program says test kits are sold at county extension offices. Test before you finish the space. If you need a mitigation fan and pipe, it is easier to put that in first. We then coat around the pipe and the sump lid.

Picking a surface for the room

• Solid color epoxy: bright and easy to wipe, a good fit for laundry and storage.
• Flake broadcast: hides lint and dust and gives bare feet a little grip in a gym or playroom.
• Metallic pour: a glossy, swirled look for a bar or media room.

Light tones make a basement with small windows feel larger. Floor drains and cleanouts stay open and easy to reach.