We have cooking grease stains from a spill. We've had several different carpet cleaners work on the stains. The carpet looks great for a few days, then the stains start coming back. So far with Zerorez the stains have not returned. We are very pleased. And if the stains should come back within 30 days, they will come out and treat again for free!
Technician Zachary was very polite and efficient, and took the time to explain the steps he was taking. He even helped me move one heavy piece of furniture. We expect Zerorez to be our 'go to' carpet cleaners, and have already recommended them.