The answer to 'grout odor' is that grout odor is often caused by mold, mildew, or bacteria growth in the porous grout material. Common symptoms include a musty, unpleasant smell coming from the grout, as well as visible signs of mold or discoloration. Solutions can include cleaning the grout with a specialized cleaner, re-sealing the grout to prevent future moisture buildup, or in severe cases, replacing the affected grout.
It's important to address grout odor promptly, as it can indicate a larger moisture or mold issue in the home. While some minor grout cleaning can be done DIY, it's best to call a professional cleaning technician if the odor is persistent or the grout is heavily damaged. They can properly assess the extent of the problem and use commercial-grade tools and products to fully remove any mold or bacteria and restore the grout.