About Us

Established in 1970, by our founder, Mr. “Roy” Poore, Mechanical Systems, Inc. was the first independent automatic temperature controls contractor in the Washington, DC metropolitan area. Over the years our focus and business base has expanded to include complete mechanical HVAC services including the installation, service and maintenance of all types of commercial HVAC systems.  With 40 years of experience in serving customers from Baltimore to Richmond, we pride ourselves on providing unparalleled customer service with all of our air conditioning, heating, temperature controls, and building maintenance & service contracts. Our clients know that we are always ready to help them with all of their HVAC needs.


Mechanical Systems, Inc. maintains a fleet of fully stocked service trucks at our Columbia, Maryland location in order to provide 24 hour, 7 day a week service to our service and maintenance customers. We take pride in our ability to meet the heating & air conditioning needs of some of the Maryland area's largest corporations, banks, and property management companies.


We continue to specialize in the service and installation of all types of automatic temperature control systems, including electric, electronic, direct digital and pneumatic systems. Mechanical Systems, Inc. is proud to be an authorized installing agent for the Johnson Controls Facility Explorer building automation systems.


Our Mission
We at Mechanical Systems, Inc. are committed to providing customer service that is far superior to that of our competitors.  We offer guaranteed response times and priority service to our clients, and we believe that part of our job is to be accessible to our customers 24 hours a day, every day. In fact, our customers can pick up the phone and contact an owner directly if the need arises.


Satisfied customers are our business.We hope that you will join our list of satisfied customers and Contact Us today!


Our Staff
Mechanical Systems, Inc. believes firmly in hiring the best staff in order to provide the highest quality of service.  Our staff offers years of experience and exceptional qualifications.


Robert M. Poore, Owner and President, has 30 years of experience in the HVAC industry. He is responsible for business development and maintaining existing customer relationships. Bobby has his Maryland Master’s HVAC License, Anne Arundel County Master’s HVAC License, Harford County Masters HVAC License, and is a Graduate of the Steamfitters Local 602 Apprenticeship School.


John Morrissey, Vice President, has 25 years of experience in the HVAC industry. He shares responsibility for business development and maintaining existing customer relationships. In addition, John is in charge of overseeing estimates, project management and oversea field service technicians. He has his Maryland HVAC/R Journeyman’s License and Maryland Home Improvement Contractor’s License, as well as being a Plumbing Journeyman certified in welding and medical gas piping. John graduated from the Steamfitters Local 602 Apprenticeship School.


Jacob Ehmann, Associate, Vice President, has 10 years of experience in the HVAC industry. He shares responsibility for business development and maintaining existing customer relationships. In addition, Jacob is MSI's resident Controls Specialist and has experience with a myriad of controls systems and specializes in the Johnson Facility Explorer Supervisory and Field Controllers. He has his Maryland HVAC/R Journeyman's License and graduated Valedictorian of his class from the Plumbers & Steamfitters Local 486 Apprenticeship School.



"Our company has been doing business with MSI for over 7 years.  I personally have been using them for over 10 years.  In that time I have found them to be very knowledgeable, courteous and ethical.  They are quick to resolve issues with the highest level of professionalism.  They show a level of dedication to their client’s that is hard to come by these days.  I have no hesitation to recommend them to anyone interested in their services and I look forward to many years to come of MSI servicing our HVAC needs."
- Director Of Property Management ~ Oekos Management



2009 UPD President’s Club Award for York HVAC Products & Services in MD
Authorized Building Control Specialist