Many HVAC repair and maintenance companies also offer air duct cleaning services, which typically costs $300 to $500.
Angie's List members share their experiences and opinions on air duct cleaning. Read more
There are also companies that only do duct cleaning, and they generally recommend having air ducts cleaned every 3 to 5 years, or even more frequently to reduce pollutants in the air.
However, the U.S. Environmental Protection Agency warns that there is no scientific evidence that cleaning air ducts regularly improves air quality, and some HVAC professionals say it is a waste of money.
Yet some allergy sufferers, including Angie's List members, have reported that having their ducts cleaned has led to reduced allergy symptoms and cleaner air.
Although the EPA does not recommend routine duct cleaning, it does suggest it be done when there are specific reasons for doing so. This would include factors such as:
- You see substantial quantities of visible mold growth within the heating ducts or present on other parts of your home's HVAC system.
- Pests such as mice, rats or insects have infested portions of the duct system.
- Excessive amounts of dust or debris clog the duct system and release dust or debris into the home through the vent registers when the system operates.
The National Air Duct Cleaners Association agrees with most of the EPA's stance on air duct cleaning with one exception -- it does recommend routine cleanings every few years.
According to the NADCA, consider the following when making a decision whether or not to clean your home's air ducts:
- Smokers in the household
- Pets that shed high amounts of hair and dander
- Water contamination or damage to the home or HVAC system
- Residents with allergies or asthma who might benefit from a reduction in the amount of indoor air pollutants in the home's HVAC system
- After home renovations or remodeling
- Prior to occupancy of a new home