RJH AIR CONDITIONING AND REFRIGERATION SERVICE L.L.C.

RJH Air Conditioning and Refrigeration Service L.L.C. specializes in the installation, maintenance, and repair of critical environmental and mechanical systems across federal facilities. Their core capabilities include precision servicing of refrigeration units, HVAC infrastructure, laboratory ovens, sterilization equipment, and biosafety cabinets, with deep expertise in preventive maintenance protocols and system diagnostics for high-sensitivity environments. The contractor delivers integrated solutions for electrical wiring, environmental controls, and industrial machinery upkeep, ensuring compliance with operational continuity standards in laboratories, cafeterias, and research facilities. Their technical proficiency extends to troubleshooting complex climate control systems, maintaining sterile environments, and supporting mission-critical instrumentation through calibrated, code-compliant interventions. The company maintains a consistent presence with the Department of Health and Human Services, where they provide routine and emergency maintenance for kitchen refrigeration, cafeteria HVAC, and laboratory environmental systems. They also serve the Smithsonian Institution and National Archives with specialized care for precision equipment, including sterilizers and temperature-sensitive storage units, while supporting the Department of Defense on biosafety cabinet diagnostics and the General Services Administration on facility-wide infrastructure upkeep. These relationships reflect a pattern of trusted, recurring service for mission-critical environmental systems. RJH’s primary industry focus lies in electrical wiring installation (NAICS 238210) and precision equipment maintenance (NAICS 811210 and 811310), positioning them as a niche provider for federal facilities requiring reliable, code-compliant upkeep of mechanical and environmental systems. They serve verticals including healthcare research, archival storage, and laboratory operations where temperature control and system integrity are non-negotiable. As a small business structured as a 2K entity based in Beltsville, Maryland, RJH operates regionally with deep familiarity with federal facility standards. While they currently hold no formal government certifications, their proven track record in delivering specialized maintenance services to high-regulation environments underscores their reliability and technical competence.