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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Sealing Across North Druid Hills
Most duct sealing jobs in North Druid Hills run $350 – $850 for a typical single-family home, and our crews can usually schedule within a few days of your call. We’re the Duct Sealing team at Hollis Air Duct Cleaning, and we’ve been working through the slab-on-grade ranches, split-levels, and garden condos along Briarcliff and Clairmont for years. Our Atlanta office dispatches background-checked, uniformed technicians to North Druid Hills with written prices agreed before any work starts, and every repair carries our 365-Day Done Right Promise. Call (361) 326-5060 when you’re ready to stop paying to heat and cool your attic.
Why Hollis Air Duct Cleaning Is North Druid Hills’s Preferred Duct Sealing Company
We’ve built our reputation in North Druid Hills on showing up inside the window and pricing in writing, not on the lowest teaser quote. Our technicians know the local housing stock: the mid-century ranches with flex duct buried in hot attics, the split-levels off LaVista Road where register boots leak into wall cavities, and the condo stacks along Briarcliff where one building’s duct system serves multiple units. That familiarity means we don’t waste your time guessing what’s behind the drywall.
Our phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues. When you schedule Duct Sealing in North Druid Hills, you get a confirmed arrival window and a technician who arrives uniformed and accounted for. If the repair fails within a year, we return and make it right at no charge. That’s the 365-Day Done Right Promise, backed in writing on every job, not negotiated after the fact.
Duct Repair in North Druid Hills
Duct Repair in North Druid Hills usually means fixing what the original 1960s – 1980s installers left behind, or what decades of attic heat and humidity have degraded. Because most homes here sit on slab foundations with no basement or crawlspace access, our technicians work entirely through registers, attic openings, and air handler connections. We replace chewed flex duct with sealed hard pipe, rebuild failed plenum connections with mastic and mechanical fasteners, and seal register boots to the subfloor so conditioned air actually reaches the room instead of leaking into the wall cavity.
A typical duct repair in North Druid Hills costs $280 – $650 depending on how many runs need attention and whether we can reach the damage without cutting access panels. Every repair starts with a camera inspection so you see the problem before we quote the fix.
Slab-Foundation Access Limits
With no basement or crawlspace, any duct embedded in the concrete slab is effectively unreachable. We focus on what we can service: attic runs, register boots, and air handler connections. Before we quote, we tell you exactly which leaks are fixable and which are buried.
Pest Damage and Flex Duct Replacement
Squirrels, rats, and snakes get into North Druid Hills attics through soffit gaps and roof vents, then chew through flex duct to nest. We replace damaged sections with sealed hard pipe and install pest screening at entry points so the problem doesn’t repeat next season.
Air Duct Sealing in North Druid Hills
Air Duct Sealing in North Druid Hills addresses the conditioned air you’re losing to attic spaces, wall cavities, and leaky joints between the air handler and your supply runs. Because most home duct systems here predate modern sealing standards and slab construction makes concrete-embedded runs inaccessible, sealing focuses on what technicians can reach: attic flex duct connections, register boots, plenum joints, and air handler cabinets. We use duct sealing mastic, mechanical fasteners, and foil-backed tape rated for HVAC temperatures, not the hardware-store tape that peels off in a humid Atlanta attic.
Typical air duct sealing in North Druid Hills runs $350 – $850 for a single-family home, with condo units and smaller systems starting closer to $280. We test static pressure before and after so you can see the improvement in hard numbers.
Mastic Sealing vs. Tape-Only Repairs
Mastic is a thick, brush-applied sealant that fills gaps tape can’t cover. In North Druid Hills’s humid summers, tape alone fails at the air handler plenum where temperature swings cause expansion and contraction. We mastic-seal every accessible joint so the repair lasts.
Static Pressure Testing
We measure duct system pressure before and after sealing. Lower static pressure means your blower motor works less hard to move the same air. Many North Druid Hills homeowners notice the upstairs finally holds temperature without cranking the thermostat.
Trusted Brands We Service in North Druid Hills
Our crews carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, the same tools commercial HVAC contractors use on larger jobs. For filtration and sealing products, we stock Honeywell, Aprilaire, and Guardsman components so North Druid Hills customers don’t wait on parts. That matters when you’re dealing with a chewed flex duct in July and need the system back online before the next humid stretch. We don’t show up with hardware-store tape and hope for the best.
Common Duct Sealing Problems We See in North Druid Hills Homes
- Register boots leaking into wall cavities. On slab-on-grade ranches and split-levels throughout North Druid Hills, the metal boot connecting your floor register to the duct run is rarely sealed to the drywall or subfloor. Conditioned air pours into the wall cavity instead of the room, and you pay for it every month.
- Attic flex duct sweating and sagging. North Druid Hills’s humid summers and poorly vented attics create condensation on unsealed duct joints. The moisture feeds biological growth, and the sagging flex restricts airflow to back bedrooms. Resealing helps, but we also address the moisture source or the problem returns.
- Failed plenum joints at the air handler. Original 1960s – 1980s duct board and tape joints crack where the supply plenum meets the air handler. With no basement access, this leak stays hidden until a static pressure test or camera inspection exposes it. We rebuild with mastic and mechanical supports.
- Shared condo duct stacks with cross-contamination risk. In garden-style condos along Clairmont and LaVista, one building’s vertical duct stack serves multiple units. Sealing must isolate your unit’s takeoffs without disrupting neighbors’ airflow, which requires careful damper adjustment and smoke testing.
Pricing for Duct Sealing in North Druid Hills, GA
Most North Druid Hills homeowners pay between $350 and $850 for residential duct sealing, with smaller condo units starting around $280 and larger homes with extensive attic ductwork reaching $1,100 if multiple plenum rebuilds are needed. What moves the price: how many runs we can access, whether we’re sealing existing joints or replacing chewed flex duct with hard pipe, and whether the air handler plenum needs rebuilding.
We do not quote per-vent pricing. We price per system, agreed in writing before any work starts. No invoice that balloons once the technician is inside. You’ll see the number, approve it, and only then do we begin. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near North Druid Hills
Our Atlanta office dispatches crews throughout the metro area, including Atlanta, South Fulton, Sandy Springs, and Roswell. Each job gets the same written price, same uniformed technician, same 365-Day Done Right Promise.
Serving North Druid Hills, GA - Our Local Coverage Area
We’re based in the North Druid Hills 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 North Druid Hills
Yes, we can isolate your unit’s takeoffs using adjustable dampers and smoke testing to verify separation. We seal your register boots and flex connections without disrupting airflow to adjacent units, then document the before-and-after static pressure for your records. Call (361) 326-5060 to discuss your building’s specific stack configuration.
We need standard visitor parking and building access to the mechanical room or attic hatch; our equipment fits through standard doorways and we don’t use large trailer-mounted units for sealing work. We coordinate with building management when required and carry proof of insurance for condo associations. Schedule through (361) 326-5060 and we’ll confirm access details beforehand.
Because slab construction means much of your duct system is buried in concrete and unreachable for cleaning, while the accessible attic runs and register boots are where leaks waste the most energy. Sealing the reachable portions gives you measurable efficiency gains; cleaning alone can’t fix air pouring into your wall cavities. We often recommend sealing first, then evaluating whether cleaning the accessible runs adds value.
Sealing repairs existing leaks but doesn’t by itself stop pests; we address both together. When we find chewed flex duct, we replace it with sealed hard pipe that’s harder to penetrate, then install metal pest screening at soffit gaps and roof vents where squirrels enter. The sealing restores system pressure; the exclusion keeps them from coming back.
We inspect the stack from the rooftop vent down to your unit’s connection, seal your takeoff with proper transition fittings and foil tape rated for dryer exhaust temperatures, and verify backdraft dampers are functioning so lint and moisture don’t migrate between units. Shared stacks require careful work to maintain fire safety clearances, which we document for your building management. Call (361) 326-5060 for an exact quote on your stack setup.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving North Druid Hills since 2004.