Duct Sealing — Stop Wasting Energy Through Leaky Ducts in Asheville, NC

Professional Duct Sealing — Stop Wasting Energy Through Leaky Ducts in Asheville, NC

Based right here in Asheville, Quality Comfort Heating & Cooling is your neighborhood HVAC team for duct sealing — stop wasting energy through leaky ducts. We've been the NATE-certified team that Asheville area residents trust since 2005.

As our home base since 2005, Quality Comfort Heating & Cooling has proudly served Asheville homeowners and businesses with reliable HVAC services. From the historic homes in Montford to new construction in South Asheville, we know the unique heating and cooling needs of every Asheville neighborhood. Our office on Emma Road means fast response times anywhere in the city.

Asheville's mix of historic homes in Montford and North Asheville — many built before central HVAC existed — creates unique retrofit challenges. These older homes often have limited ductwork space, uneven heating across floors, and single-pane windows that strain heating systems. Meanwhile, newer South Asheville construction demands properly sized high-efficiency systems to handle the area's 4,400+ heating degree days per year.

The Hidden Energy Waste in Your Home

According to the Department of Energy, the average home loses 20-30% of its conditioned air through leaky ductwork. That means up to a third of what you're paying to heat and cool your home is being dumped into your attic, crawl space, or wall cavities — spaces you're not trying to condition. In Western North Carolina, where heating and cooling costs are significant, duct sealing is one of the highest-return energy improvements you can make.

Professional Sealing vs. Duct Tape

Despite its name, duct tape is terrible for sealing ducts — it deteriorates quickly in the hot and cold environments where ductwork runs. Professional duct sealing uses mastic sealant (a thick, durable adhesive) and UL-listed foil tape at all joints, connections, and boot connections. We seal the duct system from the inside where accessible, focusing on the highest-leakage points: supply and return plenums, branch takeoffs, register boots, and the air handler cabinet.

Measurable Results

After sealing, we can perform a duct leak test to verify the improvement. Most homeowners notice the difference immediately — rooms that were always too hot or too cold become comfortable, the system cycles less frequently, and energy bills drop. Duct sealing pairs perfectly with a maintenance tune-up or a ductwork evaluation as part of a whole-house efficiency upgrade.