Our Services
Commercial HVAC Services
A/C and refrigeration, rooftop units, VRF and VRV systems, chillers, boilers, air filtration, system maintenance, replacement, and installation.
Building Controls
Building automation and controls designed to improve energy efficiency, system visibility, comfort, and long-term operating performance.
Commercial Plumbing
Backflow devices, repiping, gas lines, water heaters, leak repair, pipe replacement, sump pumps, boilers, and related commercial plumbing services.
Construction, Retrofit & Sheet Metal
Tenant fit-outs, retrofits, HVAC construction, sheet metal work, controls coordination, and project support from estimating through warranty.
About Us
MECCO LLC is a commercial mechanical services provider serving the Washington/Baltimore metropolitan region. Established in 1983, the company provides HVAC, mechanical, plumbing, sheet metal, building controls, construction, retrofit, and preventative-maintenance services for commercial property owners, property management firms, healthcare facilities, government entities, and other institutional clients. MECCO's HVAC capabilities include air conditioning and refrigeration, VRF and VRV systems, rooftop units, boilers, cooling towers, screw and centrifugal chillers, air-quality solutions, system installation and replacement, programmable controls, and preventative maintenance agreements. Its construction department focuses on tenant fit-out and retrofit projects through coordinated HVAC, sheet metal, and controls teams, while its building automation capabilities help customers improve efficiency and reduce maintenance costs. MECCO emphasizes long-term customer relationships, responsive service, professionally trained technicians, and 24/7/365 emergency coverage. The company is affiliated with Steamfitters Local Union #602, Sheet Metal Workers Local Union #100, and Plumbers Local Union #5, reflecting its strong connection to skilled trade organizations.