411 Aviation Way, Suite 100
Frederick, MD 21701
1012 Rising Ridge Road
Mount Airy, MD 21771
700 E Main Street, Suite 100
Salisbury, MD 21801
Tel 301.607.9300

Keller’s network of specialized companies ensures expertise in many fields.
Founded in 1960, Keller has proudly served the construction industry for over 60 years. Our long-standing commitment to integrity, quality, and hard work has made us a trusted name in the field. For decades, we have consistently delivered exceptional projects, exceeding client expectations and setting industry standards. At Keller, our experienced team is dedicated to building lasting relationships and creating structures that stand the test of time.”
At Keller, our people are our greatest strength. We foster a supportive and inclusive work environment where everyone is valued and empowered to grow. Collaboration, respect, and innovation drive our success. We offer opportunities for professional development and career advancement, ensuring our team members thrive. Join us and be part of a company with over 60 years of excellence, where your contributions make a real impact.
At Keller, quality and safety are at the forefront of everything we do. Our rigorous standards ensure that every project is executed with precision and care. We prioritize the well-being of our team, clients, and communities, implementing cutting-edge safety practices and maintaining a culture of continuous improvement.”
Keller is dedicated to making a positive impact beyond construction. We actively engage with and support the communities where we work, contributing to local initiatives and creating opportunities for growth and development. Our commitment to social responsibility is a core aspect of our identity, guiding our actions and decisions.
Keller is pleased to extend our services from our new office in Salisbury, Maryland. This expansion enables us to innovate and better meet your needs with quality, integrity, and dedication. We are committed to exceeding expectations across a broader community, delivering excellence in every project.
We offer a wide range of construction services.
We pride ourselves at building long-lasting relationships with our clients and partners.
"First Class Workmanship"
Keller was cognizant of the rigorous schedule demands imposed by the various milestone events on our project and kept their construction process abreast of an aggressive schedule. The work placed embodied that of first class workmanship. Of particular note, the ACPS process was heavily focused on community, staff, and faculty input. Keller was able to accommodate and strike a balance between both the site constraints and the desired design elements imposed upon the facility. The new facility met the great expectations of the stakeholders and, as such, it is appropriate that Keller earns our highest recommendation.
Paul May Project Manager, Alexandria City Public Schools
"Attention to Detail"
Keller recently completed the Oakdale Middle School Addition project for Frederick County Public Schools under a Design-Build delivery. As this was the first Design-Build school project of its kind in the State of Maryland, open communication, financial transparency, and attention to detail was of the utmost importance. Additionally, this project required a high degree of collaboration with which the Keller team excelled. They worked closely with our team to garner input and create a high-quality design that met both our program and budget needs.
Adnan Mamoon Director of Capital Programs, Frederick County Public Schools
"Above and Beyond"
"I cannot begin to praise the Keller team enough for their professionalism, communication and customer service. They went above and beyond, throughout the entire process, to make sure that all of our needs were being met. Despite a global pandemic, they remained committed to their work, thus ensuring that we were able to move into the school prior to the start of the new school year. It is evident that customer service is a priority.
Irina LaGrange Principal, Tilden Middle School