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How Can I Seal a Leaking Air Duct to Improve HVAC Efficiency?

Have a pro inspect and seal your ducts at the joints and connections, then fix damage and add insulation where needed. Leaky ducts can waste almost 30% of energy and reduce HVAC efficiency by up to 40%, so sealing pays off. We provide duct sealing, repair, cleaning, and replacement in Columbia, Lexington, Irmo, and nearby.

Quick steps:

  • Schedule a duct inspection.
  • Seal leaks and reconnect loose joints.
  • Repair/replace damaged or moldy sections.
  • Add insulation and balance airflow.
  • Keep it tight with a yearly service plan.
<br/> Updated: 2025-12-23 00:00:00 <br/> Need help in Columbia, SC? Call (803) 888-4115 or book online.

"Alix and his crew did a fantastic job getting my new HVAC system and ductwork put in and running smoothly." — Karen B.

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