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About Us



Fidelity Mechanical Services is a premier provider of mechanical HVAC design, installation and service in the Mid-Atlantic region. Having worked with some of the nation’s leading developers, property managers, data center managers, and Fortune 500 companies for over 75 years, Fidelity Mechanical Services has the experience.

Our business is to create and maintain high-performance buildings by applying the latest in energy-efficient technologies. Whether you are developing an office building, applying for LEED® certification, upgrading your data center to incorporate a state-of-the-art cooling system, replacing your building’s central plant chiller, or simply need a custom maintenance plan for your facility’s HVAC system, Fidelity Mechanical Services can provide the services you need.



Fidelity Mechanical Services has evolved to become a leader in the integrated technical building services industry. Our company founders chose the name Fidelity to represent who we are at our core — an organization whose values are rooted in an unyielding commitment to support and serve. These values keep us at the forefront of industry excellence and serve as driving forces behind our past, current, and future successes.

A Heart of Service

Service is at the heart of everything we do. It is a privilege to serve our clients, anticipate their needs, and provide them with the most thorough, detailed care in the industry. This approach keeps their needs at the forefront of all that we do, giving them peace of mind that their building services are not just met, but exceeded.


We have a legacy of continuous improvement where every voice and idea are heard, cutting edge technology is leveraged, and an extreme focus on education coalesce to further solidify our over 75-year reputation as an industry leader.

Technical Excellence

Our work reflects our promise of excellence by maintaining the highest standard of technical precision, honoring our commitments, and taking pride in the finished product. This includes our promise to continuously promote a “Culture of Safety,” where the safety of our field personnel, as well as our clients who inhabit our working environments, are of the utmost importance.

Results Driven

We are driven by a relentless pursuit of operational excellence. We are committed to increasing efficiency in an effort to always deliver projects on time and within budget, all while exceeding client expectations. Our passion for operational excellence allows us to enhance our vibrant work culture and strengthen our business relationships.

Empowering Our People

We are devoted to promoting and encouraging a healthy work/life harmony by honoring our Team Members' commitments to their families, communities, and personal interests. We understand their families serve as their own driving force to pursue professional excellence, which is why our leadership supports and encourages each Team Members' success and growth. We also respect one’s ability to suggest change and appreciate individuality, while combining everyone’s unique abilities into a powerful team, backed by mutual trust.


We are driven by a passion to maintain a professional standard of honesty, authenticity, and integrity by which we live and work, thereby creating a better world through our business interactions and providing value to our clients and Team Members alike.




As an integral part of our community, we are proud supporters of many non-profit organizations and community efforts including:

The Salvation Army
Calvert School
Catholic Charities of Baltimore
Archbishop Curley High School
The Plano-Coudon Foundation
Kendall Burrow Foundation
Camp Puh'tok for Boys and Girls, Inc.
American Cancer Society
Believe In Tomorrow Children's Foundation
Loyola Blakefield
Maryvale School
Moveable Feast
Garrison Forest School
Susan G. Komen Foundation
American Heart Association
Believe in Tomorrow Children’s Foundation
Associated Catholic Charities
American Red Cross
Helping Up Mission
Fellowship of Christian Athletes
Cal Ripken Senior Foundation
US Green Building Council
Fidelity Building Services Group College Scholarship
Years In Business
Team Members
Design-Build Projects Completed
Sq. Ft. of Air Conditioned Buildings Supported

Delivering Proactive World‐Class Service.

Fidelity Mechanical Services® is the premier provider of HVAC/Mechanical design, installation, and service in the Mid‐Atlantic region.



25 Loveton Circle
Sparks, Maryland 21152


20700 Loudoun County Parkway
Suite 140
Ashburn, Virginia 20147


7001 Muirkirk Meadows Drive
Suite E
Beltsville, Maryland 20705


1416-1422 Desoto Road
Baltimore, Maryland 21230
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