H.D. Johnson helps you resolve issues with indoor air quality, and enjoy a healthier, cleaner, and more comfortable home.  Problems with airborne contaminants, excess or insufficient humidity, bacterial growth, VOCs (volatile organic compounds) and other challenges cause damage to home furnishings, lead to higher energy costs, and have been linked to asthma, allergies, respiratory infection, and a variety of health concerns.  Specializing in innovative products, advanced technology, and proven strategies, our specialists accurately analyze indoor air, offer knowledgeable recommendations, and ensure effective results for homeowners in Washington, DC and surrounding areas.

Reliable Indoor Air Quality Services

Qualified as a Carrier Factory Authorized Dealer, H.D. Johnson offers a comprehensive selection of whole-home air quality accessories which operate silently, out-of-sight, and require little maintenance. Options such as air purifiers, dehumidifiers, humidifiers, heat recovery ventilators, and germicidal UV lamps are designed to combat threats to your indoor environment and deliver immediate and sustainable improvement.  Family owned and operated, we prioritize the quality of your indoor environment and provide the cost-effective, customized, and dedicated service you need to breathe easier.  Contact H.D. Johnson for trusted air quality solutions throughout Bethesda, MD, Chevy Chase, MD, Washington, DC, Arlington, VA, McLean, VA, Silver Spring, MD & Potomac, MD.