Founded in 1986, Merrimack Valley Corporation is a full-service mechanical contracting company. It serves clients in the commercial and residential sectors. The company offers a range of air cleaning and filtration products. Merrimack Valley Corporation provides design and installation services for heating, air conditioning and ventilation systems. In addition, it offers piping and humidification services. The company provides 24-hour emergency assistance services. Merrimack Valley Corporation offers in-house fabrication services for various types of metals, including copper, galvanized and stainless steel and aluminum. It provides cleaning and replacement services for air filters. The company also offers lubrication services. Merrimack Valley Corporation is located in Methuen, Mass.