How to Repair Loose Bricks on Steps

Remove loose mortar, clean the brick and surrounding area thoroughly, then reset the brick with fresh masonry mortar, ensuring proper alignment and weatherproofing.

1. Pry Out the Brick Carefully. Use a cold chisel and hammer to carefully remove the loose brick. Work slowly to avoid damaging adjacent bricks. If the brick is only slightly loose, you might be able to wiggle it out by hand. Clear away all old mortar from both the brick and the cavity.
2. Scrub Away Old Mortar. Use a wire brush to scrub all old mortar from the brick surfaces and the cavity where it sat. Hose down the area to remove debris and dust. The surfaces must be completely clean for the new mortar to bond properly.
3. Get Your Mix Right. Prepare masonry mortar according to package directions. Mix only what you can use in 30 minutes. The consistency should be like thick peanut butter - wet enough to spread but stiff enough to hold its shape.
4. Bed the Mortar Base. Using a pointing trowel, apply mortar to the bottom and sides of the cavity. Don't overfill - leave room for the brick. The mortar bed should be about half an inch thick on the bottom.
5. Press the Brick Home. Lower the brick into position, pressing firmly but not forcing it. The brick should sit level with surrounding bricks. Excess mortar will squeeze out - this is normal and expected.
6. Pack the Joints Tight. Pack fresh mortar into all joints around the brick using your pointing trowel. Press firmly to eliminate air pockets. The mortar should be slightly recessed from the brick face, not flush.
7. Shape for Water Shedding. Use a jointing tool or the back of a spoon to shape the mortar joints to match the existing pattern. This usually means creating a slight concave depression that sheds water effectively.
8. Finish the Surface Clean. Before the mortar sets completely, use a damp sponge to clean any excess from the brick faces. Work carefully to avoid disturbing the fresh joints. Allow 24 hours before heavy use.