Our professionals in Lancaster can come in and check your duct system and air-conditioning system, before giving you a free on paper approximation. While we perform a professional duct cleaning, we clean the intact system; including the inside unit, also identified as the air handler. For More Details Visit us at http://www.danielsairducts.com or Contact us at (717)-388-6080, Address- 711 N Marshall St,Lancaster,PA,17602 #DanielsAir #Duct #Cleaning #Lancaster #PA