How to Know if Your Home Has Bad Duct Installation

Ever wondered why homeowners should always examine the new ducts after they are installed. Every time you turn on the air conditioning system, air usually flows in through the supply ducts and flows out through the return ducts. You should always know that the air ducts running through your home are an essential component of your HVAC system. Regrettably, you may be startled to notice how many HVAC and ductworks systems are improperly installed. As a homeowner, you should understand that getting a better than average system for your home is important, just as hiring a company to install a new duct system.

A recent study cited that approximately half of the new air conditioners in United States homes do not perform based on the valued efficiency due to improper installation. In addition, you should know that irregular HVAC sizing and setting up causes increased energy bills, reduced performance, poor air distribution, and poorer indoor air quality. Identifying a few signs of your ductwork installation problem will get you underway on the path to remedy the situation.

Signs of Bad Duct Installation

Whether the ductwork in your home is new or old, you should understand that it has a vital impact on how well your HVAC system performs. Poorly mounted ductworks cause significant issues, from bad airflow to lasting HVAC destruction. Identifying your ductwork installation as a problem will get you underway on the path to repairing the condition. Below are some common signs of bad duct installation.

Inconsistent Room Temperature

As a homeowner, when you experience hot and cold spots and related comfort issues, you may have a problem with your airflow or improperly sized ductwork. It is important to know that undersized ducts and grilled usually restrict airflow. The blocked airflow may be why you are experiencing comfort and inconsistent temperature. When you realize a loud airflow and bizarre noises, such as whistling and popping in your HVAC system, you might have an improperly blocked vent or sized ducts and registers. Similarly, when you notice any sagging flex ducts, it is always important to reach out to a professional to ensure everything is pulled tight together.

Air Duct Leaks

The Energy star cited that approximately 20 percent of the air that runs through the duct system is usually lost as a result of leaks and poorly installed ducts. Your HVAC system usually performs harder due to leaks in the ductwork. Besides losing conditioned air, when the ducts are not tight enough, you should understand that negative air pressure can draw in dirty air. Leaks associated with air ducts are particularly challenging in the basement, garage, attic, and crawlspaces. Look for poor connections, gaps, and cracks in your air duct layers.

Additionally, if you experience problems and allergies associated with too much dust, your ductwork has extensive leaks. Leaks associated with your ductwork release not only conditioned air but also allow dust, air, and debris. As a result, increased energy bills, stuffy and uncomfortable rooms, and damaged ducts are signs of leaky air ducts.

Inadequate Air Returns and Uninsulated Ducts

Air return is especially important to good airflow in the home. When you notice your air returns are restricted, your HVAC system must perform harder to drive air through your home. The air handler and compressor have to perform hard when airflow is poor. The air handler and compressor require frequent repair since they wear off faster. Also, ducts supplying conditioned air in your home should be insulated. Although your attic may be insulated, the duct still requires insulation. You need to contact a professional for any uncovered sections of the supply duct to fix the issue.


Improperly installed ductwork in your house, whether new or old, causes many issues, as discussed. Weak airflow was attributed to undersized ductwork in poor condition. Increased energy bills and inconsistent temperature were signs that homeowners know that their ducts are improperly installed. Ductwork leaks were associated with the HVAC system performing harder. Also, ductwork with substantial leaks was associated with allergies and excessive duct in your house. Therefore, to prevent ventilation and duct problems in your HVAC system, you need regular HVAC maintenance to keep your air conditioner system in the rated efficiency.

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