According to the U.S. Department of Energy’s Energy Star program, leaky ducts in attics or crawl spaces can account for 20 percent or more of a home’s heating and cooling energy losses. This results in higher utility bills for you and difficulty keeping your house comfortable.
A few signs you may have leaky ducts are if you have:
High utility bills in summer and winter.
Stuffy rooms that never seem to feel comfortable.
Attic, crawlspace, or garage ducts.
Tangled or kinked flexible ducts in your system.
Does your home has a duct leak?