How to Repaint a Basement Floor

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The paint on your basement floor is starting to look dull. The shine has left and you are ready to tackle repainting your basement floor. Maybe the color on the floor wasn't what you wanted in the first place. Maybe it is just time to freshen the basement up some. Repainting your basement floor requires a bit of prep work, a high-quality paint and a sealer.

Things You'll Need

  • Rubber gloves
  • Apron or other coverup
  • Rubber boots
  • Bucket
  • Mop
  • Warm water
  • Dish washing soap
  • Sand paper (150-grit)
  • Sanding block or floor sander
  • Broom
  • Concrete paint or paint for flooring type
  • Roller
  • Paint pan
  • Paint brush
  • Sealer
  • Remove all furnishings, equipment and other items from the area of your basement where you want to repaint the floor.

  • Open any windows or doors in the basement. If there are no windows or doors, open the door leading into the basement.

  • Fill a bucket about 75 percent full of warm water and 2 tbsp. of dishwashing soap. Wear rubber gloves, boots and an apron to keep any water or paint from getting on your clothes or hands.

  • Mop the basement floor to remove any dust, dirt and debris from the surface. Let floor dry completely.

  • Sand basement floor using a sanding block or floor sander. Use a 150-grit sandpaper to rough up the floor so the new paint will have something to adhere to. Sweep the floor once you have finished sanding to remove any dust.

  • Mop the basement floor again using a damp mop and warm water. Do not use any dishwashing soap or other detergent. Let floor dry completely.

  • Apply appropriate paint (concrete paint or paint designed for the flooring you have in your basement) to the floor using a roller. Start at the farthest point from the exit and work your way toward it. Follow the recommendations on the paint container on how many coats to apply and drying time. If applying more than one coat, let the first coat dry before applying the second coat.

  • Trim any areas using a paint brush where the roller couldn't reach after the basement floor is completely dry.

  • Apply a sealer to the floor, if needed, for the type of flooring you have your basement, according to the recommendations on the container. If you're using a concrete paint with a built-in sealer, skip this step. Replace furnishings and other items in the space.

Tips & Warnings

  • Paint in sections if the basement is broken into rooms or sections.

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