+ provide you with better indoor air quality (or IAQ),reduce
+ the presence of house molds and allergens,
+ get rid of house dust,
+ result in more airflow and better delivery of warm air, and/or
+ reduce energy costs.

What can duct cleaning do for you?

A thorough duct cleaning done by a professional duct cleaner will remove dust and debris-pet hair, paper clips, children's toys and whatever else might collect down there. Ideally, the inside surface will be shiny and bright after cleaning. Duct cleaning may be justifiable to you personally for that very reason: you may not want to have your house air circulated through a duct passage that is not as clean as the rest of the house. However, duct cleaning will not usually change the quality of the air you breathe, nor will it significantly affect airflows or heating costs.

When does duct cleaning make sense?

+ If you have a problem with water in your ducts, this may result in mold growth in the duct
+ If you are moving into a newly constructed house, and have doubts about the diligence of the construction crew, duct cleaning can be useful
+ If you are having trouble with furnace airflow, a duct cleaning could reveal significant blockages
+ If you look in the return air registers and see an accumulation of debris in the duct below, you may want to have it removed.