Duct Sealing
Duct Sealing | Ventilation and Air Quality | Heating and Air Conditioning | Sevierville
Breathe easier in Sevierville with HEP’s trusted duct-sealing, heating, and air-conditioning experts. By locating and repairing hidden leaks, we stop conditioned air from escaping and keep pollutants from sneaking in, giving your system the efficiency boost it deserves. The result is a quieter, more consistent comfort you can feel—and cleaner air you can’t help but notice—through every Smoky Mountain season.
From smart airflow testing to hospital-grade filtration options, our team custom-builds solutions that put ventilation and air quality at the heart of your home. Whether you’re worried about dust, humidity, or spiking energy bills, one call to HEP connects you with the technology, transparency, and neighborly service that have kept Sevier County families comfortable for decades.
FAQs
Why is duct sealing important for my HVAC system in Sevierville?
Leaky ductwork can lose 20–30 % of the air your heating and cooling equipment produces, forcing the system to run longer and harder. In Sevierville’s humid summers and chilly winters, that wasted energy translates into noticeably higher utility bills, hot-and-cold spots, and extra wear on your equipment. Properly sealed ducts keep conditioned air where it belongs, maintain steady temperatures throughout the home, and help your HVAC system reach its full life expectancy.
How can I tell if my ducts need to be sealed?
Common warning signs include: • Rooms that never reach the set thermostat temperature • Rising energy bills with no change in usage habits • Excessive dust, pollen, or musty odors blowing from supply vents • Whistling or rattling noises in the attic, crawl space, or basement when the HVAC runs • Visible gaps, disconnected joints, or old tape falling off the ducts. A professional blower-door or duct-pressurization test provides conclusive evidence of leakage and pinpoints exactly where sealing is needed.
What methods do professionals use to seal ducts?
HVAC technicians use several proven techniques: 1) Water-based mastic sealant is brushed or sprayed over seams and joints; it dries into a flexible, long-lasting barrier. 2) UL-181 foil tape is applied to small joints or around take-offs where mastic is impractical. 3) Aerosolized internal sealants (such as Aeroseal) are blown through the ductwork; the particles track leaks and bond to the edges from the inside out, sealing holes as large as ⅝ inch. After sealing, ducts in unconditioned spaces are usually wrapped with insulation to minimize heat gain/loss.
Will duct sealing improve my indoor air quality?
Yes. Leaky return ducts can draw in crawl-space air laden with mold spores, fiberglass particles, rodent droppings, or radon, then distribute those pollutants throughout the house. Supply leaks pull humid outdoor air into wall cavities, encouraging mold growth. By closing these gaps, duct sealing reduces the entry of allergens, moisture, and harmful gases, allowing your filtration system to work more effectively and keeping the air you breathe cleaner and healthier.
How long does a typical duct-sealing job take, and will it disrupt my home?
For an average 2,000-sq-ft Sevierville home, on-site work generally takes 4–8 hours. The HVAC system will be turned off for part of that time, but technicians plan around your schedule to minimize discomfort. Most sealing is performed in attics, crawl spaces, or mechanical rooms, so there is little intrusion into living areas and no demolition of walls or ceilings. Once complete, the crew performs a post-seal test, cleans up the work area, and restores full HVAC operation the same day.
Are there any rebates or tax credits for duct sealing in the Sevierville area?
Yes. Through the TVA EnergyRight® program, homeowners served by Sevier County Electric System (SCES) may qualify for rebates when duct leakage is reduced to program standards. You can also claim a federal tax credit of 30 % of project cost (up to $1,200 per year) for certain energy-efficiency upgrades, including qualifying duct sealing, under the Inflation Reduction Act. Our office will provide the required documentation and help you apply for all available incentives to lower your out-of-pocket cost.