Various heating and cooling systems components make up the forced air system which heats and cools your home or business. These components may become contaminated with particles of dust, pollen, dust mites or other debris. If moisture is present, there is also a risk of microbiological growth such as mold and spores. In addition to potential health threats, dirty air ducts can also decrease the energy efficiency of your system which leads to an increase in your energy bills.
Dirt is carried through the air in and around your home. When the air stream moving through your home or office no longer has the energy to keep particles suspended, they are deposited in the ductwork. Over time, the buildup of dirt and related particles in your duct system is discharged back in to your home or office. The only solution is a thorough cleaning of your forced air system.
The following guidelines may help you determine if you need your ducts cleaned:
Frequency of cleaning depends on several factors, not the least of which is the preference of the owner. On average, it is about 3 years. Some of the things that may lead a home owner to consider more frequent cleaning include:
Will HVAC System Cleaning Reduce Our Home Energy Bills?
Research by the U.S. EPA has demonstrated that HVAC system cleaning may allow systems to run more efficiently by removing debris from sensitive mechanical components. Clean, efficient systems are less likely to break down, tend to have a longer life span, and generally operate more effectively than dirty systems.
Every house or commercial situation is different. But most residential jobs take 5 to 8 hours. Commercial jobs are case by case.
Consumers should be aware 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. These are the companies that have advertisements like “$99 whole house special,” and other sales gimmicks. Make sure the service you choose is NADCA certified.
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