How To Repair Concrete Steps
Learn how to fix a crumbling concrete step.
Be sure especially to remove any chipping paint. If you leave the paint on, the patch won't adhere properly. And while you want to start with clean walls, never use a pressure washer because it can damage the masonry.
Use a quick-setting concrete for the larger cracks. Use a masonry brush or a trowel to apply the patch. Don't go too heavy.
For smaller cracks, consider painting – as we did – the entire wall with a latex paint designed to fill masonry cracks 1/8" or smaller (Image 1). Use a quality acrylic latex paint formulated for stucco. For rough surfaces, use a roller with a 3/4- to 1" nap (Image 2). Paint should dry to the touch in a couple of hours. If a second coat is needed, wait about four hours before applying.
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