Denron Plumbing and HVAC, LLC. has been awarded the plumbing and HVAC contract for the new student residences of Merrimack College in Andover, Massachusetts.  Construction will begin October 2012, and will include 5 new residential buildings, accommodating approximately 350 students, complete with 10 residential assistant units, a residential director apartment, student community space, laundry rooms and trash and recycling facilities.  The project anticipated completion date is August of 2013.