National Carpet Cleaning is a family owned commercial flooring maintenance business servicing the Boston area and north to include major population centers such as Portsmouth, Manchester and Concord, NH. Our experience: We have extensive experience with the carpet and floor covering maintenance requirements of nearly all carpet manufacturers. We not only pride ourselves on our excellent carpet cleaning services but also our proven track record of favorable resolving carpet warranty issues such as pile crush, pilling mystery dirt and spots as well as post construction cleaning.