If the odor came back a week later, it was never removed
This is the call we take most often in Oakland, and the explanation is always the same: the accident did not stop at the carpet. It went through the backing into the pad, and a surface clean rinses the top of something that is living underneath. Extraction reaches that layer. When urine has gone further still — into the subfloor — we say so, because that needs sealing and no amount of cleaning substitutes for it.






