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 Franklin
Duct sealing in Franklin, TN typically runs $450 – $1,200 for a whole-home system, with most single-family jobs falling between $650 and $950. We’re the Duct Sealing crew that serves Franklin from our Memphis dispatch office, and we know the local housing stock well enough to price it before we unload the van. Call (361) 326-5060 for a written estimate.
Franklin’s split personality matters here. You’ve got 1920s bungalows in Hincheyville with original galvanized ducts that have been leaking conditioned air into crawlspaces for a century, and you’ve got three-year-old builds in Westhaven with flex-duct systems running at static pressures the manufacturer never intended. Same city, opposite problems. Our crews carry mastic rated for both, plus the HEPA containment setups Tennessee requires when we’re working in pre-1978 homes where lead-safe practices apply.
We answer our phones live, 24 hours a day. Scheduling is coordinated from Memphis, but the technicians who show up at your Franklin door know the difference between a gravity-system boot transition and a high-velocity flex run. They’ll give you a written price before touching anything, and every seal is covered by our 365-Day Done Right Promise.
Why Hollis Air Duct Cleaning Is Franklin’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004. That track record predates most of the duct cleaning outfits advertising in Williamson County right now. When a Franklin homeowner calls us back because a mastic joint cracked after a hard freeze, we return at no charge. That’s not a slogan; it’s written on every job sheet.
Our technicians are background-checked, uniformed, and expected to follow The Garrison Code on every Franklin job: arrive inside the quoted window, price in writing, complete the work by the book, leave the site clean. No exceptions for historic downtown crawlspaces or Berry Farms attic runs.
We use Rotobrush rotary systems and Nikro negative-air machines on Franklin jobs, the same equipment commercial crews run in Nashville office towers. For filtration and sealing products, we stock Guardsman-rated mastics and Abatement Technologies HEPA gear. When a Hincheyville homeowner needs a boot transition sealed against coal-ash residue, we don’t improvise with hardware-store caulk.
Phones are answered by a live person, not a callback queue. That’s especially useful when you’re trying to schedule around a narrow parking window on Third Avenue or a shared driveway off Main Street.
HVAC Duct Sealing in Franklin
HVAC Duct Sealing in Franklin means closing the gaps, cracks, and failed joints in your supply and return ductwork so the air you paid to heat or cool actually reaches the rooms you live in. Most Franklin homes lose 20 – 30% of conditioned air to leaks before it ever hits a register. In a humid subtropical climate where your AC runs hard from May through September, that’s money bleeding into your crawlspace and attic every hour the compressor’s on.
Our process starts with a visual inspection and static-pressure test at the air handler. We identify the leak points, seal accessible joints with mastic and fiberglass mesh (not tape, which fails), then re-test to verify the drop in duct leakage. For a typical Franklin single-family home, expect $650 – $950. Larger homes in Westhaven or Berry Farms with complex trunk-and-branch systems can run $1,000 – $1,200. Small repairs to isolated leaks start around $450.
Sealing Older Galvanized Systems
Historic Downtown and Hincheyville homes often have rigid galvanized steel ductwork from the 1920s to 1950s. The joints were originally sealed with fabric and paste that has long since dried to dust. We clean the mating surfaces, apply mastic rated for metal-to-metal contact, and reinforce with mesh at stress points. Static pressure before and after tells us if we’ve got it.
High-Velocity Flex Duct Sealing
Newer Franklin construction uses flexible duct with mechanical joints and tape seals. Higher static pressures in these systems can pop standard tape within a season. We remove failed tape, clean the collar, and seal with mastic rated for the temperature swing these attic runs see in a Tennessee summer.
Duct Repair in Franklin
Duct Repair in Franklin addresses the physical damage that sealing alone won’t fix: crushed flex runs, disconnected boots, corroded galvanized sections, and rodent damage in crawlspaces. We see a lot of this in older Franklin homes where decades of humidity have rusted through low-lying trunk lines, and in newer builds where flex duct got kinked during rough-in and has been starving a bedroom of airflow ever since.
Repair costs in Franklin run $350 – $800 depending on access and material. A simple boot reconnection in an open attic might hit the low end. Replacing a rusted section of galvanized trunk in a tight Hincheyville crawlspace, with lead-safe containment required for pre-1978 construction, pushes toward the higher range. We write the price down before we start, and it doesn’t move at the door.
Section Replacement vs. Spot Sealing
Sometimes the duct is too far gone. A corroded galvanized trunk or a flex run chewed by rodents needs to come out. We cut in new material, seal all joints with mastic, and balance airflow at the registers. The homeowner sees the damaged section before it goes to the truck.
Static Pressure Recovery
After any repair, we measure static pressure at the air handler. Franklin’s humid climate already strains equipment; we don’t leave a system working harder than it needs to because of an undetected restriction we created.
Trusted Brands We Service in Franklin
We stock sealing materials and replacement parts from Rotobrush, Nikro, Abatement Technologies, and Guardsman for Franklin jobs. That means no waiting on a Memphis warehouse run when your Hincheyville crawlspace repair needs a specific collar size or a rated mastic for high-temperature attic work. For filtration upgrades tied to sealing jobs, we carry Honeywell and Aprilaire products. Most Franklin repairs are completed in one visit because the van shows up loaded for the housing stock it’s about to encounter.
Common Duct Sealing Problems We See in Franklin Homes
- Coal-ash residue in gravity-system conversions. In Historic Downtown and Hincheyville homes, original gravity furnaces left soot and coal ash in low duct runs. Disturbing these without HEPA containment and lead-safe practices releases particles into living spaces. We seal only after proper source removal.
- Mastic cracking at boot transitions in older crawlspaces. Franklin’s summer attic heat swings from 60°F mornings to 140°F afternoons stress seals applied in cooler weather. We use mastic rated for the full temperature range and verify after the first hard heat cycle.
- Flex duct popping at mechanical joints in high-velocity systems. Westhaven and Berry Farms homes run higher static pressures than standard flex was designed for. Standard tape fails; we seal with mastic rated for the pressure and temperature swing.
- Shared stack dryer vents in apartments and condos. Dense development near downtown and in newer Franklin multi-family buildings routes multiple units through a single chase. A leak in one section pressurizes others with lint and moisture. We seal the full run with proper containment.
Pricing for Duct Sealing in Franklin, TN
A typical whole-home duct sealing in Franklin runs $650 – $950. Smaller homes or isolated leak repairs start around $450. Large homes in Westhaven or Berry Farms with extensive trunk-and-branch systems, or historic downtown properties requiring lead-safe containment and HEPA setup, can reach $1,100 – $1,200.
What moves the number: accessibility (crawlspace vs. open attic), extent of leakage found during testing, whether we’re working around pre-1978 lead-safe requirements, and if any sections need repair before they can be sealed. We don’t quote per-vent or per-linear-foot teaser prices that balloon once we’re inside. The price is written down before work starts, and it doesn’t change.
Every estimate is free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Franklin
Our crews regularly work in Franklin and the surrounding Williamson County area, including Brentwood, Nolensville, Fairview, and Spring Hill. The same written pricing, background-checked technicians, and 365-Day Done Right Promise apply in every city we serve.
Serving Franklin, TN - Our Local Coverage Area
We’re based in the Franklin 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 Franklin
Yes. Pre-1978 homes with original galvanized ductwork may contain coal-ash residue and lead-contaminated dust from old gravity furnaces. We perform HEPA source removal and follow Tennessee lead-safe practices before sealing any joint. Disturbing these deposits without containment releases hazardous particles into your living space. Call (361) 326-5060 and we’ll inspect first.
Yes. Sealing return duct leaks prevents your system from pulling hot, humid attic or crawlspace air into the airflow stream. In Franklin’s climate, where dew points stay high for months, that outside air overloads your AC’s dehumidification capacity. A sealed duct system moves only the air you’ve already paid to condition. We verify the improvement with before-and-after static pressure and temperature readings.
Standard tape does not. High-velocity flex systems run static pressures that pop tape seals within a season. We remove failed tape, clean collars thoroughly, and seal with mastic rated for both the pressure and the temperature swings these Franklin attics see. We also inspect for kinked runs that restrict airflow and stress joints further.
Yes. We seal the full length of shared stack vents, including the lateral connections from each unit. These systems are common in denser Franklin developments near downtown and in newer multi-family construction. A leak in one section pressurizes others with lint and moisture, creating fire and mold hazards. We contain the work area and verify airflow at each termination point.
We plan for it. Narrow alleys, shared driveways, and non-metered curb space in Hincheyville and Historic Downtown often require parking a van several houses away and running 150-foot hose sets. That makes negative-pressure containment and HEPA filtration a block-wide logistics problem, not a single-home job. We coordinate with homeowners on access timing and bring the right hose lengths and power distribution to avoid improvising on your sidewalk.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Franklin since 2004 as part of the Garrison Partners family.