I installed vinyl replacement windows throughout the house. I used insulating foam at the jambs and everything seemed to be sealed however I now see considerable air coming up at the sills. I want to put a bead of caulk there to seal the gap. My problem is that the exsisting trim was stained to match attached paneling. So I now have a vinyl window and stained darker trim. I believe a white caulk would look terrible. Even a colored caulk would look weird. Caulking and using a small quarter round molding (stained) to cover it has some appeal until I realize all the various shades of trim there are.
Can anyone suggest a solution? I might have been well served to put a bead of caulk on the vinyl window bottom where it was to meet the sill before installing, but its too late now. (I'm wondering if that's common practice by the way.) I'm going to try to attach a picture.
Always match your caulk to the face, not the return. If you are skilled, white caulk will look good. If not, you might try clear as previously suggested. Definitely DO NOT use brown.... Do you have any way to access this from the exterior? If there is a sill angle/expander, you can often remove it to add additional foam.