Pet Urine Subfloor Treatment
Chicago, IL

Pet urine subfloor treatment is the process of cleaning, deodorizing, and sealing the structural subfloor beneath your carpet or flooring after pet urine has soaked through. Standard carpet cleaning only reaches the surface — pet urine migrates down through carpet fibers, padding, and into the wood or concrete subfloor where bacteria and uric acid crystals continue to produce odor. Without treating the subfloor, odors will always return no matter how many times you clean the carpet.

Our process involves pulling back the carpet and padding, inspecting the subfloor with UV detection for full damage mapping, applying enzyme-based treatments to neutralize uric acid crystals, sanding away stained areas if needed, and then sealing the subfloor with an odor-blocking primer/sealant to permanently lock in any remaining odor molecules before new flooring is installed.

Yes. Pet urine — especially from repeated accidents in the same spot — penetrates carpet and padding almost immediately and saturates the subfloor. Over time, the uric acid in pet urine can warp wood subfloors, cause delamination in OSB or plywood, and permanently stain concrete. Bacterial growth also accelerates structural degradation if left untreated. In severe cases, subfloor sections must be replaced entirely before new flooring can be installed.

Yes, when done correctly. After enzyme treatment to neutralize the uric acid, we apply a professional-grade odor-blocking sealer that encapsulates any residual odor molecules in the wood or concrete. Once sealed and covered with new flooring, the odor is permanently contained and eliminated. This is the most effective and lasting solution for pet urine odor in Chicago homes.

The cost depends on the size of the affected area, the severity of saturation, and whether the subfloor needs repairs or replacement in addition to treatment. Supply Side Flooring offers free on-site estimates with no obligation. We pride ourselves on honest, transparent pricing — no surprises, no hidden fees.

Most residential subfloor treatments in Chicago take 1–2 days depending on the extent of the damage. This includes carpet/padding removal, subfloor treatment and sealing, and drying time before new flooring installation can begin. For smaller affected areas, treatment may be completed in a single day.

In most cases, yes. Carpet padding that has been saturated with pet urine cannot be effectively cleaned and must be replaced. The carpet itself may also need replacement depending on the degree of contamination. However, this is also an opportunity to upgrade to a more pet-resistant flooring option like luxury vinyl plank or tile.

Yes, Supply Side Flooring serves all Chicago neighborhoods including Lincoln Park, Wicker Park, Hyde Park, Bridgeport, Pilsen, Lakeview, Rogers Park, Andersonville, Bronzeville, Logan Square, and more, as well as surrounding suburbs such as Evanston, Oak Park, Cicero, and Berwyn.