This is a good question! Most people do not know what NADCA is. However, if you are looking for a duct cleaning company to come to your home it is very important to check their credentials. NADCA stands for National Air Duct Cleaners Association. The best description regarding NADCA comes straight from their website.
"The National Air Duct Cleaners Association (NADCA) was formed in 1989 as a non-profit association of companies engaged in the cleaning of HVAC systems. Its mission was to promote source removal as the only acceptable method of cleaning and to establish industry standards for the association.
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