You can whiten concrete for unsealed and unfinished concrete with a solution or either muriatic acid or bleach and water—but never both. However, if your concrete does have a stain, finish, or polish, keep in mind that these hard chemicals could damage the topcoat. Your best bet otherwise is to power wash outdoor concrete slabs or clean indoor ones with a gentle cleaner such as laundry or dish detergent.

While concrete is durable, it’s also a porous material, meaning that spills can damage the material. Not only does sealing safeguard against this issue, but it can also reduce the risk of mold and mildew.

The lifespan of stained concrete can range from five years to a lifetime, depending on the type of stain used and how well it is maintained. Acid-based stains penetrate the concrete and can last 20 years or more, while water-based stains are less durable and may last around five years, especially on outdoor surfaces exposed to UV light and weather. To preserve the color and extend the life of the finish, stained concrete should be properly sealed and then resealed every three to five years. Factors like foot traffic, climate, and proper initial application also affect its longevity.

Concrete is the most popular garage flooring option because it’s durable and can stand up to the weight of vehicles. If you plan on using your garage to park your car or store heavy items, concrete is a solid option. However, if you want to convert your garage to a living space, you can choose any number of flooring options to go over the concrete foundation, including wood, tile, and even carpeting.