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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After
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AfterFast, Reliable Duct Sealing Across Woodstock
We dispatch our Duct Sealing crews to Woodstock from our Atlanta scheduling office, and most appointments book within a few days, not weeks. If you’re in Towne Lake, Ridgewalk, or one of the older subdivisions off Highway 92, we’ve likely already sealed boots and re-strapped flex duct in a house on your street. Woodstock’s mix of brand-new builder-grade homes and 1980s-90s originals means no two duct systems are the same, and we price every job in writing before we touch it. Call (361) 326-5060 to schedule a free estimate.
Why Hollis Air Duct Cleaning Is Woodstock’s Preferred Duct Sealing Company
We’ve been working in Cherokee County long enough to know which Woodstock subdivisions used rigid metal trunks with under-insulated takeoffs and which ones used cheap flex duct that sags at the plenum. That matters because the sealing approach is completely different. Our technicians are background-checked, uniformed, and expected to work by The Garrison Code: arrive inside the quoted window, price in writing, complete the job by the book, and leave the site clean. Every repair we make carries our 365-Day Done Right Promise. If the work fails within a year, we come back and make it right at no charge, including a free second visit. No negotiation, no runaround.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday for someone to confirm your appointment.
Air Duct Sealing in Woodstock
Air Duct Sealing in Woodstock is often a repair job disguised as maintenance. In newer neighborhoods like Towne Lake and Ridgewalk, we find supply boots nailed to the subfloor with zero seal to the drywall, so conditioned air blows straight into the floor cavity from the day the homeowner moves in. In older subdivisions off Trickum Road and around Little River, we see rust-flaked metal ducts and disconnected takeoffs hidden behind finished ceilings. The job involves sealing every leak point with mastic or foil-backed tape rated for HVAC use, re-securing flex duct inner liners, and pressure-testing the system to verify the seal. A typical duct sealing job in Woodstock runs $450 – $950 for a single system, depending on how many boots need attention and whether we need to access crawlspace or attic runs.
Builder-Grade Boot Failures
Most new Woodstock homes never get their supply boots sealed to the drywall during construction. The boot gets nailed to the subfloor, the register cover snaps in, and the inspector never checks whether air is dumping into the wall cavity. We seal the boot-to-drywall joint with fiber-reinforced mastic, then verify with a smoke pencil that zero air escapes around the register.
Crawlspace Moisture Complications
Homes near Little River with crawlspace ductwork need sealing timed to the season. We won’t apply mastic to a damp duct jacket. If the metal is rust-flaked from winter humidity, we dry the surface, treat the rust, and seal only when the substrate is ready. Otherwise the mastic fails within a season.
Duct Sealing Services in Woodstock
Duct Sealing Services in Woodstock cover everything from single-boot repairs to whole-system resealing after a renovation or addition. We use professional-grade equipment from Rotobrush and Abatement Technologies, and our crews carry mastic rated for the temperature swings your attic or crawlspace will see. Most Woodstock homeowners call us after noticing uneven heating, dust puffing from registers, or utility bills that climb without explanation. Those symptoms usually trace back to leaks at the plenum, disconnected flex takeoffs, or boots that were never sealed during original construction. A full-system sealing in Woodstock typically runs $650 – $1,200 for homes with multiple zones or attic-and-crawlspace routing.
Post-Construction Sealing
New Woodstock homes often need sealing two to six months after closing. Drywall dust, sawdust, and debris collect at unsealed takeoffs, then blow into living spaces once the system cycles regularly. We seal first, then run negative-air source removal to clear what the builder left behind.
Pressure Testing and Verification
Every sealing job ends with a pressure differential test. We measure static pressure before and after, and we show you the numbers. If the system doesn’t hold, we find the leak and fix it before we leave.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Woodstock
We stock sealing materials and filtration products from Aprilaire, Abatement Technologies, and Guardsman, so Woodstock customers don’t wait on parts shipped from out of state. Our Rotobrush rotary brush systems and Nikro negative-air machines handle the cleaning side when sealing reveals construction debris or pollen buildup that needs removal. For homeowners in Towne Lake dealing with builder-grade flex duct, we carry the proper strap and mastic combinations to secure inner liners so the seal holds past the first summer. We don’t use hardware-store tape that dries out in your attic. Every material is rated for the temperature and humidity your ductwork actually sees.
Common Duct Sealing Problems We See in Woodstock Homes
- Unsealed supply boots in new construction. In Ridgewalk and Towne Lake, supply boots are typically nailed to the subfloor with no seal to the drywall. Conditioned air dumps into the floor cavity, and drywall dust migrates back into the system. We seal the boot perimeter with fiber-reinforced mastic and verify with smoke testing.
- Loose flex duct strapping at the plenum. Builder-grade flex in newer Woodstock homes is strapped loosely, so the inner liner pulls away from the collar. Sealing the boot without re-securing the flex lets debris keep moving downstream. We re-strap with proper tension, then seal.
- Disconnected takeoffs behind finished ceilings. In 1980s-90s subdivisions with original rigid metal trunks, takeoffs often separate where they disappear above drywall. Sealing only the visible boots misses these hidden leaks. We use camera inspection to locate them before we quote.
- Rust-flaked metal in damp crawlspaces. Homes near Little River with crawlspace ductwork develop rust from Cherokee County’s humid winters. Sealing over damp metal traps moisture and guarantees mastic failure. We dry, treat, and time the seal for lasting results.
Pricing for Duct Sealing in Woodstock, GA
A typical single-system duct sealing in Woodstock runs $450 – $950. Whole-system resealing for multi-zone homes or those with both attic and crawlspace routing runs $650 – $1,200. What moves the price: how many supply boots need sealing, whether we need to cut access for hidden takeoffs, the condition of existing flex duct, and whether rust treatment or drying time is needed before mastic application. We give you one flat price per system, agreed in writing, before any work starts. No per-vent pricing, no add-ons at the door. Estimates are free. Call (361) 326-5060 and we’ll schedule a technician to inspect your system and give you a written quote you can hold us to.
We Also Serve Cities Near Woodstock
Our crews regularly work in Woodstock and the surrounding communities: Holly Springs to the south, Kennesaw and Acworth to the west, and Roswell to the southeast. Same pricing structure, same written guarantee, same live-answer scheduling for every appointment.
Serving Woodstock, GA - Our Local Coverage Area
We’re based in the Woodstock 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 Woodstock
Yes, and it’s often the homes built in 2020 – 2023 that need it most. In Woodstock’s Ridgewalk and Towne Lake subdivisions, supply boots are routinely nailed to the subfloor without being sealed to the drywall, so conditioned air blows into the floor cavity from day one. A Ridgewalk homeowner called us about fine white drywall dust puffing from the registers every time the air handler kicked on, two months after closing. Our techs ran a camera inspection, found the supply boots in the master bath and hallway unsealed to the drywall with visible construction debris piled at the takeoffs, and sealed the boots with mastic before running negative pressure source removal through both supply and return ducts. The dust stopped that afternoon, and the blower motor’s amp draw dropped measurably because the system was no longer pulling from the floor cavity. Call (361) 326-5060 for a free inspection if you’re seeing dust or uneven temperatures in a new Woodstock home.
Yes. Crawlspace-routed systems near Little River often have rust-flaked duct interiors from Cherokee County’s damp winters, and sealing while the metal is still wet traps moisture that causes mastic to fail within a season. We dry the substrate, treat surface rust, and time the seal for conditions that will last. The price range stays the same, but the prep work adds time. Call (361) 326-5060 and we’ll assess your crawlspace conditions during the free estimate.
Pine pollen season doesn’t change whether you need sealing, but it can affect what we find. Every March-April, yellow-green pollen coats Woodstock’s cul-de-sacs and gets pulled straight into return ducts through unsealed boots and plenum gaps. If your system is leaking, pollen loads the duct interior faster. We often schedule sealing just after the pollen drops, so the system is tight before the next cycle begins. Call (361) 326-5060 to book timing that works with your allergy concerns.
Often yes, if the flex inner liner is intact and properly secured at the plenum. In Woodstock’s 1980s-90s homes with attic routing, we see flex takeoffs that have pulled away from collars or sag below the insulation line. We re-strap, re-support, and seal. If the flex is torn, crushed, or delaminated, we’ll show you the camera footage and quote replacement separately. Nothing gets done without your written approval. Call (361) 326-5060 for an inspection.
It keeps outdoor pollutants, including ozone precursors and pollen, from being pulled into your duct system through leaks and circulated through your home. Woodstock’s location in metro Atlanta’s ozone nonattainment area means outdoor air quality alerts are common in summer. A sealed duct system delivers only the air your filter has treated, rather than mixing in attic dust, crawlspace moisture, or wall-cavity debris. The result is lower particle load and less strain on your filtration equipment. Call (361) 326-5060 to schedule a pressure test and see where your system is leaking.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Woodstock and Cherokee County since 2004.