The Problem With Pet Stains
Regular carpet cleaning — even professional steam cleaning — often doesn't fully remove pet urine odor. Here's why: the urine soaks through the carpet, through the pad underneath, and sometimes into the subfloor. Surface cleaning only addresses the top layer.
That's why "professional carpet cleaning" and "professional pet urine treatment" are two different services.
Cost to Clean Pet Stains From Carpet
| Service | Cost Per Room | Notes |
|---|
| Basic carpet cleaning | $30–$75 | Won't eliminate urine odor |
| Pet treatment add-on | +$25–$75/room | Enzyme treatment applied to surface |
| Deep urine extraction | $75–$150/room | Sub-surface flushing with extraction |
| Pad replacement | $100–$300/room | Required for heavy contamination |
| Subfloor sealing | $150–$400/room | For urine that soaked into the subfloor |
Why Enzyme Cleaners Work (and What to Look For)
Enzyme-based cleaners contain biological enzymes that break down the uric acid crystals in pet urine — the source of the odor. Standard detergents and bleach don't break down uric acid, they just mask it temporarily.
What matters:
- Enzyme type: Protease enzymes specifically target uric acid
- Dwell time: Enzymes need 10–30 minutes to work; rushing the process defeats the purpose
- Penetration: The enzyme needs to reach wherever the urine actually went — including the pad
The Pad Replacement Question
When is pad replacement necessary? When urine has:
- Saturated multiple spots in the same room
- Been sitting for months or years
- Penetrated deeply enough to cause a strong odor even after surface treatment
Professional technicians use a UV blacklight to map contamination. When UV shows multiple large spots saturating the pad, replacement is usually more cost-effective than repeated treatments.
Carpet pad replacement: $100–$300 per room (materials + labor)
When to Replace the Carpet Entirely
Signs that replacement beats treatment:
- Urine has reached the subfloor in multiple areas
- The carpet is more than 7–10 years old
- You see staining that penetrated the backing
- After treatment, you still smell odor when the room heats up
If you're replacing carpet anyway, seal the subfloor first with an odor-blocking primer ($30–$60 per gallon) before laying new flooring. Skipping this step can let old odors bleed through.
What to Ask Before Hiring a Pet Stain Service
- Do you use enzyme-based treatments?
- How do you assess pad contamination? (UV light is the standard)
- Is pad replacement included, or is that extra?
- Do you offer a satisfaction guarantee or re-treatment policy?
Get a pet stain carpet cleaning estimate for your area →