In most cases, professional tile and grout cleaning ranges anywhere from around $0.40 per square foot up to $4 per square foot depending on the type of flooring, the condition of the grout, and how much restoration work is required before the floor can be properly cleaned.

I got called out to a home in Converse near San Antonio where the homeowner had reached the point most people eventually hit with tile floors. No matter how much they mopped, the grout lines still looked dark and dirty. The porcelain tile itself was holding up well, but the grout had become so discolored that the entire floor looked older and more worn than it actually was.