RESIDENTIAL AND COMMERCIAL AIR CONDITIONING AND HEATING SYSTEM DUCTWORK

Homeowners spend thousands of dollars on energy efficient features while overlooking the biggest energy waste of all - leaking ductwork in forced-air heating and air conditioning systems.

According to studies conducted by the U.S. Department of Energy and the U.S. Environmental Protection Agency, leaky ductwork accounts for 10 to 30 percent of total heating and cooling costs.  If the duct leakage is 20% of the total air flow, the efficiency of the cooling system can drop by as much as 50%. The Homes heating efficiency is similarly affected. Duct leakage lowers heating and cooling capacity, increases energy consumption, decreases indoor air quality and reduces equipment reliability and life expectancy.

While the increase in energy costs is significant, protecting health and safety is the most important reason to seal ducts. Ducts are usually located in the attic, crawl space or basement.  If the return ducts leak, they draw air from these areas directly into the home. This air can and usually is be contaminated with dust, mold, mildew, excess humidity, and potential toxins such as pesticides for termite treatment, combustion gases, radon and pollen. When supply ducts leak, they can create a lower pressure inside the house which draws in contaminants as well.