How to Know If Your Home’s Ductwork Needs to Be Replaced

Is ductwork replacement in the future of your home? The ducts that circulate heated and cooled air throughout your living spaces maintain household comfort and indoor air quality. Routed through areas like the attic or the crawl space, or installed inside the walls, home ductwork is mostly out of sight and usually out of mind.

Most residential ductwork is sheet metal with curved segments that may be flex duct — a wire coil forming a tube enclosed by plastic film. Ductwork usually lasts 15 to 20 years. However, as years pass, deterioration takes its toll, and ductwork replacement may be required. Typical issues affecting ducts include corrosion that causes air loss, collapsed or deteriorated flex duct, disconnected duct segments, and leakage from joints.

Signs that may indicate the need for ductwork replacement now or in the near future include:

Higher heating/cooling expenses.

As air loss from leaky ductwork worsens over time, your HVAC system runs increasingly longer cycles to sustain thermostat settings. The resulting increase in gas and electricity usage shows up in the form of escalating monthly bills.

Inconsistent temperature control.

Because leakage of heated and cooled air from deteriorating ducts may affect only certain rooms or areas of the home, maintaining consistent temperature control throughout the house may be difficult. If thermostat adjustments fail to address this problem, a professional duct inspection may reveal that ductwork replacement is indicated to restore uniform temperatures in all living spaces.

Contaminated indoor air quality.

Deteriorating ducts not only leak conditioned air out, leaks in return ductwork may actually pull unconditioned air into the ducts. Unfiltered air from zones like the attic or crawl space may be contaminated with dust, mold spores, insulation fibers, and other microscopic contaminants which are then circulated through ductwork into living spaces.

For a professional inspection to determine whether ductwork replacement or repair is indicated in your home, contact the experts at NisAir Air Conditioning and Heating.

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