about us

Ralph P. Sita, Inc. is a locally owned and operated, full service, residential, industrial, and commercial heating, ventilation, and air conditioning contractor with over 42 years of experience in the industry. 

 

Located in Dunkirk, Maryland, we serve the District of Columbia, Virginia areas, as well as local Maryland Counties, including but not limited to: Calvert, Charles, St. Mary's, Anne Arundel, Prince George's, Howard, Montgomery, and Queen Anne's. 

Ralph P. Sita, Inc. is a union contractor with personnel trained and supplied by the Steamfitters Local Union #602. Our mechanics have years of experience and are equipped with the most up to date training and tools of the trade. We design, install, and service pneumatic controls, mechanical equipment, heating, air conditioning and ventilation systems, and offer full service, commercial and residential, preventative maintenance service contracts. 

Ralph P. Sita, Inc. is fully licensed and insured in Maryland, Virginia, and the District of Columbia.

 

Ralph P. Sita, Inc. is also an accredited business with the Better Business Bureau (BBB).