NO STINK Odor Removal uses a revolutionary treatment that doesn’t mask the odor. Instead, it effectively removes the odor in less than 24 hours. We are so confident in our product and processes that we guarantee it 100 percent. After our treatment, if you find the odor is still there, we’ll come back to retreat at no cost until it’s gone. If we can’t knock out the existing odor problem, we’ll happily refund the cost of your treatment.