D&H New England Technology Show By ResidentialSystems Published: July 29, 2015 ⋅ Updated: April 15, 2019 D&H New England Technology ShowBoston Marriott Quincy, Quincy, MA August 11, 2015 SubscribeFor more stories like this, and to keep up to date with all our market leading news, features and analysis, sign up to our newsletter here.