Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
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AfterFast, Reliable Duct Sealing Across Brentwood
Duct sealing in Brentwood typically runs $350 – $850 for a whole-house system, and most jobs are scheduled within a few days of your call. If your upstairs rooms never cool properly or your energy bills spike every July, separated duct joints are the usual cause in this market, not dirty ducts.
We’ve been working in Brentwood long enough to know the pattern. The clay soils here shift, the slabs move, and the flex-duct joints in your attic pull apart. Our Duct Sealing crews serve Brentwood from our Memphis dispatch office, and we arrive inside the quoted window with background-checked, uniformed technicians. Call us at (361) 326-5060 for a free estimate, and we’ll show you exactly what’s disconnected before we quote a flat price to fix it.
Why Hollis Air Duct Cleaning Is Brentwood’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004. We don’t compete on teaser coupons. We compete on showing up, pricing in writing, and standing behind the work for a full year.
Our technicians follow The Garrison Code on every Brentwood job: arrive inside the window, price it before touching it, complete it by the book, leave the site clean. That standard matters here because Brentwood homes have a specific failure mode. The expansive clay soils shrink during dry spells and shift post-tension slab foundations. That movement pulls duct plenums and boot joints apart. A lot of homeowners call us for “cleaning” and find out they need reconnection and sealing first.
We use professional-grade equipment: Rotobrush rotary brush systems, Nikro negative-air machines, and filtration from Honeywell, Aprilaire, and Abatement Technologies. Every job gets a written price before work starts and is covered by our 365-Day Done Right Promise. If the seal fails or the joint pulls apart again within a year, we come back and make it right at no charge, including a free second visit.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues.
Duct Repair in Brentwood
Duct Repair in Brentwood usually means reconnecting separated joints and replacing crushed or rodent-damaged flex-duct runs, not the major metalwork people imagine. The dominant housing stock here is 1990s-2020s two-story stucco on post-tension slabs with attic flex-duct systems now 15-25 years old. Those systems weren’t built to handle 130°F+ attic temperatures for six months straight, and they definitely weren’t built to stay connected while the foundation shifts underneath them.
Typical duct repair in Brentwood runs $280 – $650 depending on how many joints have separated and whether we need to replace damaged flex-duct sections. We find the real problem with a camera inspection, show you the footage, then quote one flat price per system before any work starts.
Disconnected Boots and Plenum Joints
The most common call we get in neighborhoods off Concord Road and Moores Lane is an upstairs bedroom that won’t cool. Our camera usually finds a boot pulled away from the subfloor or a plenum joint separated at the air handler. We reconnect with mechanical fasteners, seal with mastic rated for high-static applications, and verify with a pressure test.
Rodent Damage in Attic Runs
Brentwood’s rare wet winters push rodents into attic chases. They nest in flex-duct insulation and chew through the inner liner. We cut out the damaged section, splice in new flex-duct with proper supports, and seal all connections. Then we clean the remaining ductwork under negative pressure so you’re not breathing rodent debris.
Air Duct Sealing in Brentwood
Air Duct Sealing in Brentwood is the difference between a system that moves conditioned air into your rooms and one that pumps it into your attic. We use duct sealing mastic, a thick compound that remains flexible after curing, applied to every joint and seam in your accessible ductwork. For homes with extensive leakage, we may also apply aerosolized sealant through a pressurized system that reaches joints we can’t physically access.
Air duct sealing in Brentwood typically costs $350 – $850 for a whole-house system. The price depends on system size, attic accessibility, and whether we’re sealing accessible joints by hand or running aerosolized sealant through the entire network. We quote one flat price per system, never per vent.
Mastic Sealing at Joints and Seams
We brush mastic onto every plenum joint, boot connection, and flex-duct collar. Mastic outlasts tape, which dries and fails in hot attics. In Brentwood’s climate, that’s critical. A taped joint might last three years. A mastic-sealed joint lasts the life of the system.
Aerosolized Duct Sealing for Inaccessible Leaks
For leaks inside wall cavities or buried in insulation, we pressurize the duct system and introduce an aerosolized sealant that finds and plugs gaps from the inside. This method can reduce total leakage by 80-90% in older Brentwood systems where manual access isn’t practical.
Trusted Brands We Service in Brentwood
We stock parts and filtration products from Honeywell, Aprilaire, and Abatement Technologies for Brentwood customers. That means faster turnaround on repairs and replacements without waiting on shipped orders. Our Nikro negative-air machines and Rotobrush rotary systems are the same tools commercial crews use in hospitals and schools, not the hardware-store vacuums some outfits roll out. When we seal your ducts, we use mastic and hardware rated for the static pressure and temperature swings your Brentwood attic actually produces. We don’t guess at compatibility.
Common Duct Sealing Problems We See in Brentwood Homes
- Clay-soil foundation movement separates plenum joints. Brentwood’s expansive clay soils shrink during dry-season groundwater drawdown, pulling post-tension slabs and the duct connections anchored to them. We regularly find plenum joints at the air handler gaping open by an inch or more.
- Attic flex-duct bakes and splits at collars. Summer attic temperatures in Brentwood routinely exceed 130°F. Flex-duct inner liners harden and crack at connection collars, especially on north-facing attic runs that get afternoon sun. The insulation looks fine; the air leak is hidden underneath.
- Disconnected boots feed phantom zones. A boot pulled away from a second-floor bedroom subfloor dumps conditioned air into the wall cavity. The homeowner cranks the thermostat, the system runs longer, and the bedroom still won’t cool. We find these with camera inspection, not guesswork.
- Rodents compress flex-duct in winter attic chases. When wet winters push rodents indoors, they nest in the soft insulation of flex-duct runs. The duct doesn’t tear completely, but the inner liner collapses, restricting airflow to entire zones. Cleaning alone won’t fix it; the damaged section needs replacement and proper sealing.
Pricing for Duct Sealing in Brentwood, TN
Duct sealing in Brentwood runs $350 – $850 for a typical whole-house system. Duct repair, when joints have separated or flex-duct needs replacement, typically falls between $280 – $650. These are honest ranges for this market, not teaser prices that jump once we’re inside.
What moves the price: system size (a 5-ton system with 15+ runs takes longer than a 3-ton system with 8 runs), attic accessibility (steep trusses and blown-in insulation slow the work), and whether we’re sealing accessible joints by hand or running aerosolized sealant for leaks we can’t reach directly. We inspect first, show you camera footage of your actual ductwork, then write down one flat price per system before any work starts. No per-vent pricing. No add-ons at the door.
Every job includes before-and-after photographs of your own ducts. You’ll see the separated joints, the sealed result, and the pressure-test verification. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Brentwood
Our crews work throughout the Nashville metro area. We regularly schedule Duct Sealing in Brentwood alongside jobs in Franklin, Nolensville, La Vergne, and Smyrna. Same standards, same written pricing, same 365-Day Done Right Promise in every city we serve.
Serving Brentwood, TN - Our Local Coverage Area
We’re based in the Brentwood area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Duct Sealing in Brentwood
Expansive clay soils under Brentwood’s slab-on-grade homes shrink during dry spells and shift the foundation, which mechanically pulls duct plenums and boot joints apart. This is a structural reality of this market, not a one-time repair. We use flexible mastic and mechanical fasteners designed to tolerate some movement, and our 365-Day Done Right Promise covers re-separation at no charge. Call (361) 326-5060 if your upstairs rooms keep losing airflow.
Every 5-7 years for most Brentwood homes, but only if the system is intact. If your ducts are leaking at joints, cleaning is premature. The debris will just re-enter through the same gaps. We inspect with a camera first. If joints are separated, we seal or repair before cleaning. Call us for a free inspection and we’ll tell you honestly whether cleaning is needed now or later.
Yes. Duct sealing closes gaps and joints so conditioned air reaches your rooms. Duct cleaning removes debris from inside the ductwork. In Brentwood, we often do both on the same visit because separated joints let attic dust and insulation into the system. But they’re separate operations with separate pricing, and we quote each in writing before starting. Call (361) 326-5060 for an exact breakdown on your system.
Per system, always. Per-vent pricing rewards contractors for finding problems that aren’t real. We quote one flat price for your entire duct system based on what we find during camera inspection. The price is written down before work starts and does not move. You’ll know the total before we touch a tool. Call (361) 326-5060 for a free estimate.
We schedule duct sealing and repair appointments as promptly as our current workload allows, typically within a few days. Duct sealing is a scheduled job, not an emergency dispatch. We don’t promise same-day arrival because doing it right takes preparation: the right technician, the right materials, and time to inspect before quoting. Call (361) 326-5060 and we’ll get you the first available appointment that lets us do the job properly.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Brentwood under The Garrison Standard since 2004.