The answer to 'grout stain removal' is that grout stains can be caused by a variety of factors, including spills, dirt buildup, and improper cleaning. Common symptoms include discolored, dingy-looking grout that detracts from the overall appearance of your tile floors or walls. Fortunately, there are several solutions to remove grout stains, ranging from DIY methods to professional cleaning services.
For minor stains, you can try DIY solutions like using a grout brush and a mixture of warm water and mild detergent. More stubborn stains may require specialized grout cleaners or a diluted bleach solution. However, for deeply set-in stains or if the grout is damaged, it's best to call in a professional cleaning service to ensure the job is done properly and safely.