Yes, polished concrete floors are worth it for homeowners who want durability, style, and low maintenance in one sleek flooring surface. You get the modern visual appeal of stone or tile with far less upkeep and far less cost. Polished concrete flooring is tough enough for high-traffic areas, it’s a great choice for people with allergies, and it’s easy to clean. If your existing concrete is in good shape, polishing it can give you solid value that shines on for years.

Yes, you can seal an old concrete floor as long as you remove stains and repair damage before sealing. Remove everything from the garage and clear the floor throughout with a concrete cleaner and power washing. Fill in cracks larger than 1/8 of an inch wide and remove all grease and rust stains before sealing. Make sure your concrete is fully dried before applying sealer.

Always seal concrete stain to protect against wear and preserve the color. This applies to acid- and water-based stains but not always to concrete paint. Many paints designed for outdoor use contain ingredients designed to protect and waterproof without the need for additional sealant. Fortunately, learning how to seal concrete is something most DIY-savvy homeowners can tackle.

When you’re painting a garage floor, it’s best to use a combination of rollers and brushes. You’ll want to start with a brush, making a border around the edges where the floor meets the wall. From there you can use a roller, though some people also like to do the entire first coat with a brush because it’s easier to work the paint into the textured concrete.