Let’s be honest. When was the last time you actually looked at your window sills?
Apply one thin coat of masonry primer. Then two thin topcoats. Do not glob it on. Concrete hates thick paint. Wait 4 hours between coats. Aesthetic Tip: Go Dark Everyone buys white paint for sills. But consider a dark gray or charcoal. Why? White shows every speck of dirt, pollen, and bird dropping. A dark sill hides the grime and makes your window glass look like a bright, floating mirror. The Verdict Painting concrete window sills is a weekend afternoon project that delivers a “new house” feeling. Just remember: clean it, etch it, and use the right paint. Do that, and your sills will outlast your mortgage. painting concrete window sills
Tape the glass and the wall siding. But leave a 1/16th inch gap between the tape and the concrete—this prevents paint from seeping under and creating a glue seal that peels later. Let’s be honest