The answer to 'grout cleaning prices' is that the cost can vary significantly depending on several factors. Generally, professional grout cleaning services range from $0.50 to $5 per square foot, but the exact price will depend on the size of the area, the condition of the grout, the complexity of the job, and your location.
Factors that influence grout cleaning prices include the type of grout (sanded vs. unsanded), the amount of dirt and staining, whether sealing is required, and the accessibility of the area. Larger jobs or heavily soiled grout may cost more. It's best to get several local quotes to compare prices and services.