D&I Mechanical Contractors, Inc. Logo

D&I Mechanical Contractors, Inc.

Commercial Mechanical & Plumbing: Three Decades of Reliability.

Trusted by leading General Contractors across the Baltimore-Metropolitan Area since 1992. We deliver mechanical and plumbing systems engineered for long-term dependability and performance.

30+ Years Experience
Family Owned & Operated
Licensed & Insured

Partnered with the best in General Contracting

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Our Core Competencies

HVAC Systems

Installation and commissioning of complex heating, cooling, and ventilation systems for commercial facilities.

Design-Build & Engineering

We integrate mechanical design, engineering, and construction under one roof for streamlined, cost-effective project delivery, alongside traditional bid-spec work.

Commercial Plumbing

Full-scale plumbing installations, waste systems, and fixtures for new commercial construction.

A Career with D&I: Professionalism Meets Camaraderie.

If you are looking for more than just another job, and want a career with a company where your future looks even brighter than our 30-year past, then we invite you to join the team and experience the D&I difference.

Explore Open Opportunities

Our History: Built on a Legacy of Trust

At D&I Mechanical, you are never just a face in the crowd. You are part of the family. For over 30 years, we have built our reputation as a trusted, family-owned company that takes pride in both our craft and our people. A new generation of leadership is bringing fresh energy and ideas while honoring the legacy that got us here.

We understand the challenges of commercial mechanical and plumbing because we’ve lived them. That is why we are committed to creating a supportive workplace where your skills are valued, your career can grow, and your effort is recognized.

Professional HVAC Technician Working on a System

Serving the Baltimore-Metropolitan Area