Serving Greater Orland Park

Basement Floor Epoxy

Moisture-tested basement floor epoxy for Orland Park basements and split-level lower floors, detailed around sump pits and perimeter drains.

Orland Park Epoxy Flooring installs basement floor epoxy in Orland Park, IL, serving surrounding cities including Palos Heights, Mokena, Worth, Palos Hills and Crestwood. Over 20+ years we have learned that a basement floor is decided by moisture more than by color, so every basement job starts with a written moisture test before a final price.

Basement slabs sit against the soil, below grade and often near a sump pit or drain tile. Vapor rises through them constantly, and a coating that traps that vapor blisters, peels or lifts at the edges. The test tells us whether a standard system will hold, whether a moisture-mitigation primer is needed, or whether the floor should not be coated yet.

The proposal lists the products, the number of coats and the finished thickness, along with what the warranty excludes. Moisture is the first exclusion we name, and we explain it before anything is sold.

Orland Park Basements and Lower Levels

A storage shelf rolled back against the wall of an Orland Park basement newly coated in light gray epoxy, the sump rim standing proud of the floor.

A Village of Basements and Split-Levels

In a Cook County Assessor sample covering about 72 percent of the village’s Cook County parcels, 88.7 percent of houses have a full or partial basement and only 9.8 percent sit on a slab. That makes basement floors one of the most common coating jobs we see in Orland Park.

The sample also shows partial basements outnumbering full ones, 55.5 to 33.2 percent. Much of that comes from split-levels, where the lower level is recorded as a partial basement.

Split-Level Lower Floors

A split-level’s lower level is usually a half-buried family room, laundry or office rather than a cellar. It sits partly below grade, so vapor and cool soil temperatures still affect the slab, but the room is finished living space with furniture, rugs and daily foot traffic.

We treat those floors like basements for testing and like main floors for finish. That often means a lower-sheen topcoat, a quieter color and texture that is comfortable underfoot instead of the aggressive grip we would use in a garage.

Homes From the 1970s Through the 1990s

Most of the village’s housing was built between 1970 and 2009, with only a small share older than that. Basements from those decades often carry old paint, patched cracks, carpet tack strips and tile adhesive left from earlier remodels.

Some newer slabs have a vapor retarder beneath them, and some older ones may not. We cannot see under the concrete, so the test result matters more than the age of the house when choosing a system.

Testing and Preparing the Basement Slab

Moisture Testing Methods

We start with an ASTM D4263 plastic sheet test as a quick screen, then use ASTM F1869 calcium chloride kits or ASTM F2170 in-situ relative humidity probes when real numbers are needed. Each coating system publishes its own limits, and those are what we compare the readings against.

Testing takes time, because kits and probes need to sit in place before they are read. We build that wait into the schedule rather than coating on the day of the first visit.

Efflorescence and Hydrostatic Pressure

White, powdery deposits on a basement floor are efflorescence, salts carried up through the slab by moving water and left behind when it evaporates. They are a sign that moisture is passing through the concrete, and they also weaken the bond of any coating placed over them.

Where groundwater pushes up under the slab, hydrostatic pressure can force water through cracks and joints. No coating holds against that pressure, so the water has to be relieved through drain tile and the sump before the floor is coated.

Grinding Off Paint, Patching and Adhesive

We diamond grind the slab to remove old paint, sealers and thin patches and to open a real concrete surface profile. Dust is captured with a vacuum at the grinder, which matters in a basement where air moves through the furnace and into the rest of the house.

Old black tile adhesive may contain asbestos, so we have it tested before grinding. If it tests positive, removal becomes a separate job for a qualified abatement contractor before our work begins.

Cracks and the Cove Joint

Basement floors crack from shrinkage and settling, and the joint where the floor meets the foundation wall is a common path for water. We map cracks, fill stable ones with a rigid repair material and grind them flush.

Active leaks at cracks or the cove joint need repair from the water side or through the drainage system first. We point those out rather than coating over a crack that is still letting water in.

Sump Pits, Drains and Water History

Sump Pits With a Raised Rim

Orland Park amends the plumbing code so a sump pit is 30 inches deep with its top 2 inches above the adjacent floor finish. We coat up to that raised rim and finish the edge neatly, but we never seal over the pit or the lid.

The raised rim keeps surface water from flowing straight into the pit, and the coating should work with it. We pitch the finish details so spills move toward the floor drain rather than collecting against the sump.

Perimeter Drain Tile and Floor Drains

Many basements have perimeter drain tile under the slab edges, with openings or inspection ports near the sump. Those must stay open, and so must floor drains and their grates.

We mask them during coating and finish around them cleanly. A coating that bridges over a drainage opening traps water and defeats the system that keeps the basement dry.

Coating After a Water Event

The village’s own hazard plan ranks flooding first among local hazards, and water in a basement can come from storms, a failed sump pump or a plumbing leak. After any water event, the coating waits until the source is fixed and the slab has been cleaned and dried.

We retest moisture after drying, because a slab can feel dry on the surface while still holding water inside. Coating too soon is a common reason basement floors fail within the first year.

Choosing a Basement Floor System

Moisture-Mitigation Primers

When readings run higher than a standard epoxy can tolerate but the slab is sound and free of active water, a moisture-mitigation primer can go down first. It reduces vapor transmission so the system above it can bond and cure properly.

Mitigation primers have limits too. When readings exceed what any primer can handle, we recommend fixing the source or choosing a different floor rather than covering the problem.

Laundry Rooms, Workshops and Home Gyms

A coated basement floor makes a laundry room, workshop or home gym easier to clean and more durable. We match the topcoat to the room: chemical resistance near detergents and bleach, impact resistance under benches and tools, and texture where floors get wet.

In a home gym, we coat walkways and surrounding areas and recommend rubber matting in the lifting zone. No basement floor coating should take dropped weights on its own.

Flake, Solid Color or Metallic Finishes

A vinyl flake broadcast hides dust and small imperfections and adds texture, which suits laundry and utility areas. Solid colors brighten a dark basement and make dropped items easier to spot.

Metallic epoxy can turn a finished basement into a showpiece, but it demands a flat, dry slab and careful installation. We tell you when a basement’s condition makes a metallic floor a poor bet.

  • 20+ Years on Concrete
  • Moisture Tested Before Pricing
  • Written Specs on Every Quote

Good to know

Frequently Asked Questions

Will epoxy stop water from coming into my basement?

No. A floor coating is not waterproofing. Water entering through cracks, the cove joint where the floor meets the wall, or a high water table has to be handled with drain tile, a working sump, grading or crack repair. Once the water is controlled and the slab is dry enough, a coating protects and finishes the floor.

Does basement floor epoxy help with radon?

We do not sell a floor coating as radon reduction. In Illinois, radon mitigation is licensed work regulated by IEMA, and a coating is not a mitigation system. If you are concerned about radon, have the home tested and talk with a licensed mitigation professional before or alongside any floor project.

What moisture level is too high for an epoxy coating?

Each product has its own published limits, measured either as a moisture vapor emission rate from a calcium chloride test or as relative humidity inside the slab from in-situ probes. We compare your readings with the limits for the system we plan to use and choose a mitigation primer, a different system or no coating based on that comparison.

Can you coat over the old paint on my basement floor?

Usually not. Old basement paint is often thin, poorly bonded or peeling in places, and a new coating bonded to it will only be as strong as the old layer. We grind paint, patching compound and adhesive off so the new system bonds to the concrete, and we test any old black adhesive before grinding it.

How long does a basement floor take to coat?

Most residential basements take a few days from grinding to final topcoat, depending on size, repair work and the system used. A moisture-mitigation primer can add a step. Basements cure more slowly when they are cool, so we plan for slab temperature and ventilation rather than promising a fixed date.

What happens around the sump pit and floor drain?

We coat up to the raised sump rim and around the floor drain without sealing over either one. Drain tile openings and inspection ports stay clear, and the sump lid stays removable. The goal is a floor that sheds water toward the drainage system rather than trapping it under a coating.

Is a coated basement floor cold or slippery?

A coating does not insulate, so the floor stays about as cool as the bare slab, and rugs or mats still help in living areas. For slip resistance we add texture with a flake or quartz broadcast and a grit additive in the topcoat, especially near laundry machines, bathrooms and the bottom of the stairs.

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