Hedge Reduction

My Hedge in my front garden became to wide I needed about four inches off on either side, my hedge is about fifteen feet long,I was reccomended to a father and son gardeners and they were brilliant this guy put a attachment to his hedge trimmer like a blade and it sliced through like butter.They did a great took the rubbishtaken away and the price was resonable the hedge looks a bit sad now but they told me it will recover in time.