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.

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.

Yes, you can seal old or existing concrete, but proper preparation is crucial. The concrete surface must be clean, dry, and free of any incompatible old sealant. To check if an old sealer is present, drip a few drops of water onto the surface; if the water is absorbed in under five minutes, it's ready to be resealed. If you plan to use the same type of sealer that was previously applied, you may not need to remove the old layer. However, if you are using a different type of sealer, the old one must be completely removed. Before applying the new sealer, thoroughly clean the concrete and repair or fill any cracks to ensure a smooth, well-prepared surface.

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.