Emjay Engineering & Construction Co

We are a privately owned, full-service mechanical and general contracting firm with over 65 years of experience in the construction industry. Specializing in commercial HVAC, air distribution, and gas installation, we serve institutional, commercial, and industrial renovation projects throughout Maryland, Delaware, Washington D.C., Virginia, and Southern Pennsylvania. We've earned a reputation for quality craftsmanship and attentive customer service, backed by consistent repeat work from our clients.