How to Get Cat Urine Smell Out of Concrete

Remove Cat, Dog & Pet Urine Odors From Concrete and Cement

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Odor Eliminator

Cat urine can soak below the surface of concrete.

Cat urine can be especially difficult to remove from concrete because concrete is porous. The same is true for dog urine and other animal urine. Whether the odor came from cats, dogs, ferrets, squirrels or other animals, urine can soak below the surface, carrying the odor with it. Cleaning only the top of the concrete may not reach all of the urine underneath.

Cat sitting beside a urine stain on a concrete floor

The key is simple: your odor eliminator has to reach everywhere the urine went.

OdorXit Eliminator is a pet urine odor remover for cat urine, dog urine and other animal odors on concrete and other water-tolerant porous surfaces. It penetrates below the surface to reach the source of the urine odor—not just what’s on top.

Diagram showing urine soaking below the surface of porous concrete

Don’t Just Mist It. Saturate It.

If the urine soaked into the concrete, OdorXit Eliminator needs to reach there too.

Whether you’re dealing with fresh cat pee, old dried cat urine, repeated pet accidents, or urine odor that keeps coming back after cleaning, OdorXit gives you a way to treat the odor where it started.

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Step 1: Find the Cat Urine

Sometimes you can smell cat urine but can’t see exactly where it is.

Check the entire affected area, especially corners, walls, edges of the floor and places where a cat may have repeatedly urinated or sprayed.

A UV black light can help you locate hidden or dried urine spots that may not be visible.

UV black light revealing hidden cat urine on concrete

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Step 2: Clean the Concrete With TSP

If urine has had time to soak into the concrete, we recommend cleaning the affected area with trisodium phosphate (TSP) first. This helps prepare the concrete so OdorXit Eliminator can reach the urine that has penetrated below the surface.

Using chemical-resistant gloves, mix 1 part TSP with 32 parts water.

Lightly scrub the mixture onto the concrete. Reapply as needed to keep the area wet for 1–5 minutes.

Use a shop vac to remove the excess liquid.


Step 3: Rinse the Concrete

Rinse the area several times with clean water, using a shop vac to remove excess liquid after each rinse.

Do not allow the concrete to dry before applying OdorXit Eliminator.


Step 4: Mix OdorXit Pet Urine Odor Remover

For larger concrete areas, OdorXit Eliminator Concentrate gives you an economical way to make the amount of pet urine odor remover you need.

For regular use, mix 1 ounce of OdorXit Eliminator Concentrate with 32 ounces of water, or 4 ounces of Concentrate with 1 gallon (128 ounces) of water.

For Deeply Absorbed Urine Odors in Porous Concrete

When urine has penetrated deep into concrete, we recommend adding a carpet shampoo containing a “surfactant” to the OdorXit solution.

A surfactant helps the solution spread and wet the surface more effectively so it can penetrate deeper into the pores of the concrete—exactly where absorbed urine odor may be hiding.

For one gallon, mix:

  • 4 ounces OdorXit Eliminator Concentrate
  • 12 ounces carpet shampoo containing surfactants (ionic or nonionic are fine)
  • Enough water to make 1 gallon (128 ounces) total
Saturating concrete with OdorXit so the solution reaches urine in the pores

Which Carpet Shampoo Do We Use?

One product we’ve found to consistently list surfactants in its formula is Great Value Carpet Cleaner from Walmart—the one with the dogs pictured on the label. Product formulas can change, so check the current label to make sure it still contains a surfactant before using it.

You can also use another carpet shampoo that contains a surfactant. Either ionic or nonionic formulas will work.

Then apply enough solution to penetrate as deeply into the concrete as the urine did.

Don’t Just Mist It. Saturate It.

If the urine soaked into the concrete, OdorXit needs to reach there too.

iconBuy OdorXit Eliminator Concentrate


Step 5: Saturate the Concrete With OdorXit Eliminator

This is the important part.

Don’t just mist the surface. Saturate it.

Spray liberally or slowly pour OdorXit Eliminator over the affected area. Apply enough product to allow Eliminator to penetrate the porous concrete and reach as deeply as the urine did.

If the urine soaked through, OdorXit needs to reach there too.

Be sure to treat the entire affected area, not just the spot where the stain is visible.


Step 6: Let the Concrete Dry Naturally

Allow the treated area to air dry naturally.

As OdorXit reaches the urine below the surface, it can eliminate the odor at its source rather than simply covering the smell with fragrance.

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