Common Signs of Duct Leaks
Uneven temperatures between rooms are one of the most obvious signs of duct problems. If some rooms are always too hot or too cold regardless of thermostat settings, your ductwork may be delivering conditioned air to the wrong places. Higher than expected energy bills are another indicator, since your system has to work harder to compensate for lost airflow. Excessive dust in your home, especially near vents, can mean your ducts are pulling dusty air from your attic or crawl space through leaks.
What Causes Duct Leaks
Duct leaks develop over time from natural expansion and contraction as your HVAC system cycles on and off. Poor original installation is another common cause, particularly at joints and connections where sealant can degrade. Physical damage from pests, home renovations, or aging materials can also create gaps. In Northern Idaho, the extreme temperature differences between your ductwork and the surrounding spaces accelerate wear on seals and connections.
Professional Duct Sealing Solutions
Professional duct sealing involves inspecting your entire duct system, identifying leaks with pressure testing or visual inspection, and sealing them with specialized materials. In some cases, aerosol-based duct sealing technology can seal leaks from the inside without tearing into walls or ceilings. After sealing, your technician will balance the airflow to ensure even distribution throughout your home. The energy savings from duct sealing typically pay for the service within a few years.