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ATTENTION: Unscrupulous individuals are using EMJAY officers’ contact information to scam people seeking employment. The emails listed here in are the only ones associated with our company.

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Full Service Mechanical & Solutions Provider

EMJAY Engineering and Construction Co., Inc. is a privately owned, full service mechanical and general contracting firm. After more than 65 years of experience in the construction industry, we have earned a reputation for quality craftsmanship and attentive customer service. We are incredibly proud of the repeat work we’ve received from various clients, confirming the consistent quality we provide in all projects. Specializing in institutional, commercial and industrial renovation, EMJAY provides valued expertise on all sizes of private and public projects throughout Maryland, Delaware, Washington, D. C., Virginia and Southern Pennsylvania. Contact us today to learn more!

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Clients We Serve

We have the privilege to work with an array of clients in various industries

  • Holy Cross Hospital
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Service Areas

Emjay Engineering & Construction provides services to the following areas:


EMJAY Engineering and Construction is proud to be affiliated with the following organizations: