As a leading national mechanical contractor, Harris has over 75 years of experience in construction, design and engineering, building automation, and end-to-end building systems. Our regional office in Bowie, MD serves the Mid-Atlantic and has extensive knowledge in multiple markets, including Communication, Data Centers, Government and Religious Facilities. You can count on the honest, passionate and dedicated team at Harris to bring creative problem-solving and experience to design, build, control and maintain your energy-efficient plumbing, piping and HVAC systems, all on schedule and within budget.