PROficient Air was founded in 1998, and has consistently provided Maryland, Virginia, West Virginia, and DC businesses and homeowners with the highest quality of heating & air conditioning solutions.  We sell, install and offer consultation services for products from Trane, Lennox, April Aire and other major manufacturers. PROficient Air’s goal is to help homeowners and businesses statewide discover the benefits of state of the art indoor air quality systems that both improve your air quality and save you money.   We are proud to say that each product we carry is both effective and affordable. For more information about our products or services, please contact PROficient Air by telephone or email. One of our representatives would be happy to speak with you, and to answer your questions. PROficient Air Phone: 866-728-7974 Fax: 301-745-4441 21175 San Mar Road, Boonsboro, MD  21713 We Service All Major Brands