Company description
Keystone Mechanical Group Inc. has celebrated its 15th year in business. Keystone's founder and CEO, Domenic D'Agostino, is a well-respected entrepreneur with over 20 years experience in the HVAC industry. Recently, Domenic has partnered with Nando Giammaria; also a very well respected entrepreneur in the industry, who brings over 30 years experience in the HVAC field himself.
