Service Areas Master Kleen is Westmoreland County’s top rated business for Air Duct Cleaning, Carpet Cleaning, and Exterior Soft Wash and has been in business since 1984. We proudly service Westmoreland County including but not limited to the following areas: -North Huntingdon-Irwin-Jeannette-Hempfield Township-Greensburg-Latrobe -Murrysville-Export-Delmont-Harrison City-Derry-Ligonier -Youngwood-Mt. Pleasant-Scottdale-New Stanton-Belle Vernon