FAQ

Duct sealing is the process of closing leaks, cracks, and loose connections in HVAC ductwork to prevent air loss. In commercial buildings, duct systems are larger and more complex than residential ones, so sealing requires specialized equipment, materials, and techniques to ensure even airflow across large spaces.

ACIA’s duct sealing services are designed exclusively for commercial, industrial, and institutional facilities. We specialize in large-scale HVAC systems found in office buildings, hospitals, laboratories, manufacturing plants, and similar environments. Our advanced robotic and aerosol-based technologies are engineered to handle complex duct networks that go beyond residential applications, delivering measurable improvements in energy efficiency, air quality, and system performance across entire buildings.

Not typically. Many sealing methods, especially aerosol and robotic systems, can be completed quickly and even after hours. Most commercial projects require little to no downtime for building occupants.

Sealing duct leaks can reduce heating and cooling energy losses by 20–30%, depending on the system’s condition. Over time, this translates into significant cost savings and reduced wear on HVAC equipment.

Professionals use a mix of approaches depending on system size and accessibility including mastic sealant, metallic tape, aerosol-based sealing, and even robotic sealing for hard-to-reach ducts in large buildings or industrial facilities.

Duct sealing provides the best return when ducts are aging, modified, or located in unconditioned spaces (like attics, crawlspaces, or mechanical rooms). It’s also ideal after major HVAC upgrades or when air balance issues are affecting productivity or comfort.

A properly sealed duct system can last 15 years or more with routine HVAC maintenance. Annual inspections help ensure that seals remain intact and the system continues operating efficiently.

Yes. Sealing ducts prevents contaminants, dust, and unfiltered air from entering the system, improving overall air quality. It also supports compliance with ASHRAE, ENERGY STAR, and LEED standards for energy efficiency and sustainable building performance.

Yes, severely damaged ducts, missing insulation, or system design flaws may require repairs or redesign before sealing. A professional assessment helps determine if duct sealing is the best solution for your building.