How To Repair Basement Floor Cracks

If you find cracks in your basement concrete it s important to repair them as soon as possible to prevent water.

How to repair basement floor cracks. When a basement waterproofing technician injects a wall crack he will typically inject an expanding urethane product. Step 1 repair cracks asap. Step 3 chisel loose concrete for larger cracks.

Use a wire brush and shop vacuum to make the process easier. To permanently patch the crack we used an epoxy injection system from polygem called the liquid concrete repair kit about 60. If you think the concrete floor is done moving you can repair those cracks and the shrinkage cracks with an epoxy material you inject into the crack and add a silica sand for a filler.

Fill it with a caulk suitable for use on concrete. The problem is that the best topical crack repair is one applied on the side of the concrete where the water first enters. Pour concrete resurfacing mixture into the crack and smooth it out with a rubber floor squeegee.

Start by removing debris such as loose pieces of concrete that may be wedged within the crack. Hairline cracks need no repair and are not indicative of a larger problem. Unfortunately in the case of basement floor cracks the water is entering from the underside that you can t reach.

Clean out the cellar floor crack with a vacuum remove any loose cement or aggregates. Step 2 for small cracks clean the area first. When this soil gets saturated it causes water to seep in through wall cracks.

Then sweep or vacuum up any lingering dust and debris. Fixing cracks in basement floors. Feather the edges to get the best appearance.