Duct Sealing
Duct Sealing | Heating and Air Conditioning | Cookeville
Tucked right here in Cookeville, HEP keeps drafts, dust, and high energy bills from sneaking into your home with precision duct sealing that makes every room feel just right. Our seasoned technicians track down the tiny leaks hiding in your ductwork, then seal them tight with advanced Aeroseal technology—boosting airflow, restoring lost comfort, and shaving money off monthly utilities. You’ll notice quieter vents, more even temperatures, and cleaner indoor air almost immediately.
Whether your system is brand-new or decades old, duct sealing is the fastest way to maximize the performance of your heating and air conditioning investment. From the first inspection to the final pressure test, HEP handles the entire process with clear communication and a 100% satisfaction guarantee, so all you have to do is enjoy a cozier, healthier Cookeville home.
FAQs
What exactly is duct sealing and how is it performed?
Duct sealing is the process of locating and repairing leaks, gaps, and disconnections in the supply and return ductwork that distributes heated and cooled air throughout your home. After an inspection, a technician pressurizes the system with specialized equipment to pinpoint leaks, cleans the surfaces, and seals problem areas with mastic, aerosolized sealant, or metal tape rated for HVAC use. Finally, the system is retested to verify that air loss has been reduced to industry-accepted levels.
Why is duct sealing particularly important for homes in Cookeville?
Cookeville experiences both hot, humid summers and chilly winters, so your HVAC system works hard year-round. If 20–30 % of conditioned air escapes through leaky ducts—as is common—your equipment has to run longer to reach the thermostat setting, driving up electric or gas bills. Properly sealed ducts improve comfort in hard-to-condition rooms, lower energy costs, help the system maintain correct humidity levels during Tennessee’s muggy months, and reduce wear on the HVAC equipment, extending its service life.
What signs indicate that my ducts may need sealing?
Common red flags include uneven temperatures between rooms, excessive dust even after cleaning, musty odors when the system turns on, higher-than-expected energy bills, and hissing or whistling noises coming from duct runs. If you notice one or more of these issues—or if your ductwork is more than 10 years old—schedule a diagnostic test such as a duct blaster or blower-door test to measure actual leakage.
Which sealing materials and technologies do you use, and are they safe?
For accessible joints, we use UL-181 mastic, a thick, paint-on sealant that remains flexible and airtight for decades, or UL-listed metal foil tape for small seams. For hidden or hard-to-reach duct runs—common in attics and crawl spaces—we offer an aerosolized sealant that is blown into the ducts and automatically plugs holes up to ⅝-inch wide from the inside. All products are low-VOC, meet local building codes, and are safe for pets and people after curing.
How long does a typical duct sealing appointment take, and will it disrupt my home?
Most single-family homes in the Cookeville area can be inspected, sealed, and retested in four to eight hours, depending on square footage and duct accessibility. Our team protects floors and furniture with drop cloths, and HVAC downtime is usually limited to two short intervals: one during initial testing and another during final verification. You’ll have full heating or cooling service again before we leave the driveway.
How much money can I expect to save, and are there local rebates or incentives?
Energy savings vary, but homeowners commonly see a 10–20 % reduction in annual heating and cooling costs—often $150–$350 per year for a typical Cookeville household. Sealed ducts also increase indoor comfort, so you may be able to raise the thermostat a degree or two in summer without noticing. Tennessee Valley Authority (TVA) and some local utilities periodically offer rebates for duct sealing when performed by a certified contractor; we’ll help you complete paperwork and provide the test results needed to qualify.