Armstrong Duct, Vent, Heart provides air duct, exhaust duct, dryer vent, chimney sweeping and maintenance services throughout New England. Armstrong also sells residential woodstoves, pellet stoves, and gas fireplaces and stoves, in addition to outdoor fireplaces and the Big Green Egg ceramic cooker. Armstrong is a family-owned and operated company now in its third generation and was started in 1965 as a heating company in Manchester, New Hampshire. Armstrong serves most of New England as one of the oldest, largest, and most experienced air duct, exhaust duct, and dryer vent cleaning and chimney service companies in the United States.