Repairing Cracked Concrete Window Sills

Before you begin you need to assess the damage to determine the extent of the required repair.

Repairing cracked concrete window sills.

Use a stiff wire brush to. You ll be pleased to hear that this is a relatively easy job. Rub off flaking paint or loose concrete along the crack with the wire brush and make sure to clean out any moss that. Stab the trowel into the compound to remove air pockets and help work the patching material deep into the crack.

What would be an appropriate material to fill it with. Allow to dry for at least 4 days before. Rub the surface of any and all damaged areas with a stiff brush. Fix any small or medium cracks in your concrete window sill with caulk.

Remove as much concrete debris as possible. Mix the concrete patching compound following the manufacturer s directions. Freshening up the paintwork. Fit the narrow tip.

I have on hand a tube of big stretch caulk and a tub of dap bondex ready mixed concrete patch. I have an exterior concrete window sill that has a crack in it that i want to patch pic attached. Fill in the cracks or broken concrete with either the multi purpose exterior filler or the sand and cement mixture. Trowel the compound into the crack.

Repairing a concrete window sill assessing the damage. Fill the crack up to the surrounding concrete surface.