Here's a closer look. The window-breaking ballplayer reminded me of an old painted ad I saw on a wall in Bushwick back in 2012. The company name is no longer legible on that ad, but the phone number is — and it matches this one!
Given the age of these two ads, I figured the business had probably gone under some time ago, but it turns out Sam is still glazing away, just down the block from the aforementioned ad in Bushwick.
Looking at Sam's store in Street View, you'll find, on an adjacent wall, another painted ad for the business, this one with a catchy slogan: "Don't hold your new windows up with sticks".
(The Street View image linked to above also reveals an impressive collection of pigeon coops on the roof of the building where the ad is painted.)