Remove Stains Prompt cleaning of spills is always an important part of regular carpet maintenance. However, even with immediate action, some stains are extremely difficult to remove. Older stains can prove even more challenging. Additionally, some stains will return after cleaning if too much cleaner is used. Residual cleaner can attract dirt to the carpet, leaving it looking worse than when you started. A professional carpet cleaner has the right tools to lift stains out of the carpet fibers permanently.