Repair Cracked Concrete Window Sill

How to repair sandstone window sills.

Repair cracked concrete window sill.

Use a paintbrush to apply concrete bonding agent to the entire window sill. With concrete and slate sills the exposure to the variations in temperature can cause cracks and crumbling water penetration can also weaken the joints. Window sills are designed to divert water away from the house and as a result they get a battering from the weather over time wooden sills can rot and concrete window sills can develop cracks. As this may.

If sills are sandstone the stone tends to deteriorate with age exposure to rain snow and freeze. Repairing a woden sill. Here is a site that will help with replacing a concrete sill l that is not broken off all the way under the window. To avoid this check regularly for.

Worn or loose joints. Stone windowsills add old world charm to many buildings. Apply a 3 8 inch thick layer of concrete all over the sill with a trowel following any contours to mimic its original shape. Puddles of water collecting on the window sill.

If it is broken under the window it would probably require taking the window out to repair. Resurface stained or cracked concrete window sills with new concrete.