DND Services

Johnson Barrow, based in Seattle, WA, is a prominent HVAC representative organization in the Pacific Northwest with over 50 years of innovation and experience. Representing more than 40 leading manufacturers, the company is dedicated to providing quality service to both customers and manufacturer partners. With a focus on sustainability and superior service, Johnson Barrow has established itself as a market leader in HVAC solutions, including exclusive representation of brands like ABB and Aermec. The company emphasizes technical support and service for advanced heating and cooling technologies, ensuring efficiency and reliability in their offerings. Generated from their business information

Neudorfer Engineers Inc. is an engineering firm that serves the building owners and mechanical contractors. It offers services, such as testing, adjusting and balancing (TAB), building commissioning, cleanroom certification and surveys, sound and vibration measuring, fire and life safety system testing, duct air leakage testing (DALT), room air leakage testing, fume hood and biological safety cabinet certification. Neudorfer Engineers Inc. is one of the leaders in non-destructive testing with the application of thermal imaging. The company has association with the American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE), National Environmental Balancing Bureau (NEBB), Institute of Environmental Sciences and Technology (IEST) and Washington State Society for Healthcare Engineering (WSSHE).