Don't Delay Dealing with Dirty Ducts!

More Savvy Tips

How do you know it's time to get your furnace and air ducts cleaned? Generally speaking, you should have the service done every 3 to 5 years, depending on the quality of the air filters you're using. Dirt gets through some low efficiency filters and into the ducts easier than others. Matt Farber, owner of Air Quality Heating & Air Incorporated, a Diamond Certified company, says another way to tell is by checking the fan compartment with a flashlight. Also look for dirt around the heat registers.

A thorough cleaning, which includes brushing and vacuuming the ducts and cleaning the furnace, can improve your furnace's efficiency by 15%-50%. Dirty systems block airflow and overheat your furnace. This can lead to an early failure. In the Bay Area, a proper furnace cleaning in an average home will take about 2 hours and cost somewhere in the neighborhood of $200-$400.