Cleaning Your Ductwork Could Mean Getting Cleaned Out

According to Consumer Reports Money Adviser, having your home’s ductwork cleaned may clean out your heating vents … and your checking account. Unless, when you poke you head into the vent you see mold, there is no evidence that spotless ducts will make your life any easier or cleaner.

And according to the Environmental Protection Agency:

Airducts diagram (EPA)

Structural diagram of an air duct (EPA)

“Duct cleaning has never been shown to actually prevent health problems. Neither do studies conclusively demonstrate that particle (e.g., dust) levels in homes increase because of dirty air ducts. This is because much of the dirt in air ducts adheres to duct surfaces …  air ducts are only one of many possible sources of particles that are present in homes. Pollutants that enter the home both from outdoors and indoor activities such as cooking, cleaning, smoking, or just moving around can cause greater exposure to contaminants than dirty air ducts. Moreover, there is no evidence that a light amount of household dust or other particulate matter in air ducts poses any risk to your health.”Money Adviser also warns that poorly trained workers might damage your heating system. Companies that offer free “tests” will claim to find mold and then hike the initial cleaning price quote.If you decide to have your ducts cleaned after an inspection, ask the sales rep to show you exactly what he found and to put into a written contract what process the company will use to do the job. Before you sign on the dotted line, check with your local Better Business Bureau (, Yelp!, and your local consumer protection agency (it might be your state’s attorney general’s office).


The Consumer Gal and I are about to have our book, Enough of Us – which deals with another realm – published in a few weeks. In preparation for the big event we need to concentrate on that project. So for the next eight weeks or so, I will be suspending my semi-monthly Consumer Guy full-length blog posts and, instead, providing  a short consumer tip each week (I hope).

If you would like to learn more about our book that deals with issues of ethics and procreation, please visit our other website, Many thanks for your interest.