10 Best Grout Sealers 2025 in the United States

The Miracle Sealants 511 Impregnator is a versatile grout sealer designed for both indoor and outdoor use on various surfaces like grout, ceramic, stone, and tile. One of its strong points is its broad water and stain resistance, thanks to an oil and water-resistant formula that creates an invisible barrier to protect surfaces from moisture and stains. This makes it a good choice for areas prone to spills or dampness, such as kitchens and bathrooms. It covers a large area—up to 4,000 square feet per gallon—so it’s economical if you have a big project.

Aqua Mix Sealer's Choice Gold is a water-based penetrating sealer designed to protect natural stone and tile surfaces like porcelain, terracotta, marble, and other stones. It offers good water and stain resistance, making it suitable for both indoor and outdoor applications. One of its biggest advantages is its durability, as it can last up to 15 years before needing reapplication, which is quite impressive for a sealer in this category.

The Black Diamond Stoneworks Grout Sealer is a solid choice if you want long-lasting protection for grout in tile floors, marble, or showers. Its water-based, low-odor formula makes it pleasant and safe to apply indoors without strong smells, which is a definite plus if you’re sensitive to chemical odors. It offers good stain resistance against common household spills like coffee, food, wine, and oil, helping keep grout looking clean and fresh. Many users find it easy to apply, so you don't need to hire a professional – just follow the directions and you can seal grout yourself efficiently.