A 24/7 Service & Repair Team On Your Side


Calvert Controls provides mechanical services, HVAC service and maintenance to over 100 commercial and government facilities throughout the region. We repair, replace and retrofit all mechanical and HVAC equipment manufacturers of all system sizes. We respond 24 hours a day, 7 days a week when your mechanical equipment malfunctions.

Our team of professionals responds to mechanical emergencies within two hours of your call to ensure your facility remains safe and your assets are protected.

We service and repair the following systems:

  • Heating and air conditioning systems (including split systems and heat pumps) in commercial buildings, schools, churches and more
  • Low- and medium-temperature refrigerators, freezers, chillers and boilers in restaurants, stores and plants
  • Automated cooling systems that monitor and modulate the safe operating temperature of data centers, office buildings, broadcasting equipment and cellular service towers.

Our service technicians are members of Steamfitters Local 602, which represents the journeymen and apprentice steamfitters and pipefitters in the Washington, D.C., area. 

We stand behind our work

We also have Preventative Maintenance Packages and can schedule visits weekly, monthly, quarterly, and annually according to your needs. For our maintenance customers, we provide a 2-hour response time on every call.