About Warner Mechanical

Company History

Since 1937, the Warner name has been synonymous with value, quality, and integrity. With Matt Warner becoming CEO in 1998, our company reached a rare accomplishment—its third generation of family ownership. Over the decades, R.W. Warner has expanded into a family of service divisions that include Warner Service, Warner Construction, Kaempf & Harris, and Warner Mechanical. Our unwavering commitment to customer satisfaction has allowed our enterprise to continually grow for more than 80 years.

Warner Mechanical is one of the region’s largest and most respected mechanical contractors with equipment and technology capable of handling even the most complex major mechanical systems and plumbing installations. Our portfolio of clients includes some of the world’s largest contracting companies, as well as school and government agencies throughout the quad-state region. Our mechanical division is known for its team-focused approach to projects, scheduling integrity, reliable budgeting, and quality workmanship.

RW Warner Truck

Quality Service and Safety on Every Project

Experience, dependability, consistency, and reliability are qualities that are hallmarks of the team members at Warner Mechanical. From our highly skilled mechanics to our seasoned managers, we have the capabilities and experience to deliver on even the most complex projects.

The cornerstone of every successful project lies within our employees, subcontractors and those in and around our work environments. With this in mind, we have developed an industry-leading safety program that places the health and welfare of our people and partners above all else. While we are proud of our safety awards, we’re even more proud of our safe work environments.

We believe that workplace safety equates to no lost time due to safety failures, which means no schedule delays, no OSHA delays, greater productivity, and ultimately a more successful project.

We are proud to be a leader on safety within the industry. Our commitment to our safety program is the most important aspect of our operations.

Community Involvement

R. W. Warner has a long and dedicated philanthropic connection to the communities in which we work, as well as to the professional organizations with whom we are privileged to be associated and the charitable interests of our employees.

We Give Back To

  • Frederick Memorial Hospital
  • Community Foundation of Frederick County
  • Rotary International
  • Frederick County Chamber of Commerce
  • and more!


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