It's basic tile, probably near 20 years old. Certain parts are very dirty, like the floor and the lower part of the bathtub/shower. The bathtub/shower may even have some black mold. The upper parts look untouched, DIY Tile and grout cleaning can be tedious and time consuming and not as thorough as our state of the art truck-mounted equipment and techniques. On the other hand, professional tile cleaners have equipment and cleaning solutions not zerorez carpet cleaning specials available to the public. This equipment is strong enough to lift stains that scrubbing and mopping can’t. Experts even remove sticky residue that attracts dirt, and won’t leave any behind, either. As for the most satisfying room to clean at home? The bathroom, according to 37 percent of those surveyed. Some 30 percent reported that they enjoy deep cleaning their bedrooms the most. The respondents also said that they donapos;t clean certain areas as often: The windows (30 percent), the back of the TV (30 percent), and underneath the furniture (29 percent).