Fixing a stone window sill that's not directing rain away from the brick

[JennyM]

We have two stone window sills that weren't installed properly. When it rains, water ends up running underneath the sill and down onto the brick wall. How can I fix it? I don't want to remove and reseat the sill, since I want to keep costs down.

The sill has a drip groove on the bottom, but the tilt on the sill "overpowers" it, so the rain ends up cascading down the brick wall underneath. Argh, help!

 

[oldognewtrick]

Post a pic of the sill, a pictures worth a 1k words.

 

[JennyM]

Good point! Here it is:

 

[bud16415]

I think you could take an angle grinder and enlarge the drip grove deeper and solve the issue.

 

[Eddie_T]

Maybe aluminum or vinyl angle applied under the edge with construction adhesive. Maybe something like aluminum flashing bent on a homemade metal brake. Or trimmed off some other stock material found at a big box store.