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Consumers should beware of air duct cleaning companies that making sweeping claims about the health benefits of duct cleaning – such claims are unsubstantiated. Consumers should also beware of “blow-and-go” air duct cleaning companies. These companies often charge a nominal fee and do a poor job of cleaning the heating and cooling system. These companies may also persuade the consumer into unneeded services with and/or without their permission.
(If you have knowledge of a practicing “blow-and-go” air duct cleaner, contact your local Better Business Bureau to report the company, and your local, federal, and state elected officials to demand legislation.)
Make sure the company is a member in good standing of the National Air Duct Cleaners Association (NADCA).
See if the company has been in business long enough to have adequate experience.
Inquire whether the company is in good standing with your local Better Business Bureau.
Get proof that the company is properly licensed and adequately insured.
Verify that the company is certified by NADCA to perform HVAC system cleaning.
Make sure that the company is going to clean and visually inspect all of the air ducts and related system components.
Avoid advertisements for “$99 whole house specials” and other sales gimmicks.
Ask if the company has the right equipment to effectively perform cleaning, and if the company has done work in homes similar to yours. Get references from neighbors if possible.