RJH Air Conditioning and Refrigeration Service

About RJH Air Conditioning and Refrigeration Service

RJH Air Conditioning & Refrigeration Service is a trusted leader in commercial HVAC, refrigeration, food service, and scientific equipment service across the DC Metro Area. For more than 25 years, businesses and government institutions have relied on our expertise to keep their operations running. Founded in 1998, RJH has grown into a highly respected technical service provider with a reputation for solving the toughest equipment challenges—often the jobs that other companies can’t fix. Our team supports mission-critical environments including research labs, hospitals, embassies, military bases and large commercial facilities, offering 24/7 emergency repair service response, preventive maintenance, new equipment installation, and even equipment rentals to minimize downtime. At the core of RJH is a commitment to reliability, integrity, and teamwork. Our technicians are supported by knowledgeable managers and office staff, creating a workplace where problem‑solving, craftsmanship, and customer care are valued every day. Employees at RJH become part of a highly capable, responsive, and respected service organization. Whether providing emergency repairs, diagnosing complex mechanical systems, supporting scientific compliance requirements, or installing large‑scale refrigeration and HVAC infrastructure, our team plays a critical role in keeping the region’s essential operations running smoothly. With a strong customer base of over 4,000 businesses and a reputation built on consistent, high‑quality work, RJH offers team members a stable career path with room to grow. RJH operates from our headquarters in Beltsville, Maryland, serving a wide and diverse service area throughout the DMV. Our commitment to excellence makes RJH an ideal place for technicians and office staff who want to grow their skills, be part of a mission‑driven team, and contribute to the success of thousands of regional businesses and institutions.