About Us

Mann-In, Inc. was established in 1977 with a goal of complete customer satisfaction. Located in Chantilly, Virginia, we serve all areas of Northern Virginia, including Fairfax, Arlington, Loudon and Prince William Counties. We provide expert installations of high quality Carrier products, repair and service of all brands and models of equipment, comprehensive service agreements, and gas conversion services. In addition, we provide 24 hour emergency heat service during the winter months.

Mann-In Inc. is a Virginia class "A" contractor, bonded and fully insured. We are a member of ACCA, as well as participants in the Washington Gas contractor program. In 2004, Mann-In Inc. became a Carrier Factory Authorized Dealer and has been awarded the Carrier Presidents award for the 17th consecutive year. We achieved this by meeting very high standards in technical expertise, business practices, and customer service quality. More information about this prestigious designation can be found at the Carrier website.

Our professionally trained and certified office staff, sales engineers, installation mechanics and service technicians are equipped with product knowledge, computerized records, radio dispatched vehicles and decades of experience to provide for all of your heating and cooling needs.

In recent editions of a local consumer magazine, Mann-In, Inc. Heating and Air Conditioning received double check top rating for quality and price. See some customer comments made by some of our customers.

Specializing in residential heating and air conditioning services for over 40 years has allowed Mann-In, Inc. to maintain our goal of "providing our customers with the comfort they desire, and the quality they deserve".