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 Scenic Oaks
Duct sealing in Scenic Oaks typically runs $450 – $1,200 for a whole-home system, with most ranch-style homes falling in the $650 – $900 range depending on duct accessibility and the number of zones. We’re the Duct Sealing crew for Hollis Air Duct Cleaning, and we serve Scenic Oaks from our Dallas-Fort Worth dispatch office. Crews are on the road to properties off Scenic Loop Road, Boerne Stage Road, and the acreage developments north of I-10 regularly. Call (361) 326-5060 for a free estimate, and we’ll give you a written price before any work starts.
Scenic Oaks isn’t like the older neighborhoods in San Antonio. You’ve got custom-built homes on one to five acres, multi-zone HVAC systems stretched across sprawling ranch floor plans, and duct runs that snake through unconditioned attics for forty or fifty feet. That geometry creates pressure imbalances and leaks that a standard suburban sealing job won’t touch. We’ve been working these homes since 2004, and we know where the failures hide - from duct leaks to the need for Scenic Oaks Dryer Vent Cleaning.
Why Hollis Air Duct Cleaning Is Scenic Oaks’s Preferred Duct Sealing Company
Our reputation in Scenic Oaks was built on showing up inside the window and pricing in writing. Homeowners here don’t have time for callbacks and re-dos. The Garrison Standard means we arrive when we said we would, in uniform, with background-checked technicians who’ve been briefed on your specific system before they step out of the van.
We get calls from Scenic Oaks year-round, but cedar pollen season, December through February, is when the phone really lights up. That’s when homeowners who’ve been putting off duct work finally notice the dust film on registers, the rooms that won’t hold temperature, and the allergy symptoms that spike when the blower kicks on. Our 365-Day Done Right Promise covers every sealing job in writing. If a joint we sealed fails 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 waiting until Monday for a callback.
Duct Repair in Scenic Oaks
Duct Repair in Scenic Oaks means fixing the physical damage that develops in long attic runs, at flex-duct connections, and where takeoffs separate from trunk lines under thermal stress. We see this constantly in the 1990s and 2000s-era ranch homes that dominate Scenic Oaks, where ductwork has been expanding and contracting through twenty-plus years of hot summers and occasional hard freezes. A typical repair runs $280 – $650 depending on accessibility and whether we’re patching a single section or rebuilding a connection point.
Disconnected Takeoffs and Collapsed Flex
The long duct runs in Scenic Oaks attics sag over time, especially where flex duct was hung with inadequate support. A disconnected takeoff blows conditioned air into your attic and pulls limestone dust back into the system. We reconnect with mechanical fasteners, seal with mastic and mesh tape, and add proper strapping so it stays put.
Condensate Damage from Freeze Events
When that rare hard freeze hits Scenic Oaks, ducts in unconditioned attics can sweat and drip. Metal trunk lines rust. Fibrous liner delaminates. We cut out damaged sections, replace with properly insulated duct, and seal the transitions so moisture can’t migrate.
Air Duct Sealing in Scenic Oaks
Air Duct Sealing in Scenic Oaks addresses the pressure leaks that force your HVAC system to work harder than it should, pulling unfiltered attic air and mineral dust into the return side. A typical whole-home sealing job runs $650 – $900 for a standard ranch, with larger multi-zone systems or homes with extensive hard-pipe attic runs reaching $1,000 – $1,200. We use mastic and mesh tape on all accessible joints, seal the air handler cabinet, and verify with static pressure testing.
Multi-Zone System Balancing
Scenic Oaks homes often have three or four zones, each with its own damper and thermostat. When ducts leak, the zone farthest from the air handler starves. The closest zone over-conditions. We seal the trunk and branch lines, then balance dampers so each zone gets its designed airflow.
Source Removal Before Sealing
We won’t seal over contaminated ductwork. If your returns are loaded with limestone dust and cedar pollen debris, we remove it first using negative-air HEPA extraction. Sealing dirty ducts just traps that contamination against your blower motor and coils.
Trusted Brands We Service in Scenic Oaks
Our crews carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, and we stock sealing products and filtration upgrades from Honeywell, Aprilaire, and Guardsman. For Scenic Oaks homeowners, that means no waiting on parts shipped from San Antonio. If your system needs a filter upgrade after sealing, we’ve got the right MERV rating in the van. If we’re running a rotary brush system through hard-pipe ductwork, it’s the same commercial-grade tool we’d use on a hospital job, not a hardware-store attachment.
Common Duct Sealing Problems We See in Scenic Oaks Homes
- Limestone dust infiltration at return plenums. The caliche and fine rock dust from new construction along Scenic Loop Road gets pulled past compromised filters and settles in return plenums. Standard sealing that ignores the return side just pressurizes the problem.
- Failed foil tape on condensate-exposed joints. Foil tape degrades where attic humidity spikes or occasional freeze-thaw cycles create moisture. We use mastic and mesh tape, which bonds to dusty metal and flexes with temperature swings.
- Disconnected takeoffs in long attic runs. The sprawling ranch layouts in Scenic Oaks put supply ducts fifty feet from the air handler. Sagging flex separates from trunk lines, and homeowners wonder why the west wing never cools.
- Sealed dirty ducts without source removal. Some crews skip the cleaning step. We don’t. Sealing over limestone dust and pollen debris locks contamination in the system and accelerates blower motor wear.
Pricing for Duct Sealing in Scenic Oaks, TX
A typical duct sealing in Scenic Oaks runs $650 – $900 for a whole-home system. Smaller homes with simple duct layouts might fall to $450 – $600. Large custom ranches with multi-zone systems, extensive hard-pipe attic runs, or detached workshop/garage HVAC extensions can reach $1,000 – $1,200. What moves the number: how many linear feet of accessible duct we can reach, whether we’re working around blown insulation, if the system needs source removal first, and how many zones require balancing.
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. The price we write down is the price you pay. Estimates are free. Call (361) 326-5060.
We Also Serve Cities Near Scenic Oaks
Hollis crews also handle Duct Sealing in Scenic Oaks area calls from Houston, San Antonio, Dallas, and Fort Worth. Scheduling is coordinated from our Dallas-Fort Worth office, with local crews dispatched to each metro.
Serving Scenic Oaks, TX - Our Local Coverage Area
We’re based in the Scenic Oaks 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 Scenic Oaks
Every three to five years for cleaning, with sealing inspected at the same interval. The unpaved roads, open land, and active construction in Scenic Oaks load returns with mineral dust faster than enclosed suburban lots. If you’ve got a workshop, detached garage HVAC, or recent construction nearby, lean toward three years. Call (361) 326-5060 and we’ll assess your specific setup.
Yes, by reducing the unfiltered air pulled through leaks in your return ducts. Cedar pollen season in Scenic Oaks, December through February, overloads standard filters. When returns leak in the attic, pollen and limestone dust bypass the filter entirely. Sealing those leaks forces air through the filtration system as designed. We often pair sealing with a MERV upgrade for homes with allergy-sensitive residents.
Multi-zone systems have more joints, more dampers, and longer total duct runs than single-zone homes. Each zone transition is a potential leak point. In Scenic Oaks, where ranch homes commonly run three or four zones across acreage, pressure imbalances from leaks cause one zone to over-condition while another starves. We seal the full trunk-and-branch network, then verify static pressure at each zone damper.
Often yes, when the temperature imbalance is caused by duct leakage rather than insulation or equipment sizing. We see this frequently in Scenic Oaks ranches where west-wing bedrooms won’t cool because supply air is dumping into the attic through a disconnected takeoff. After sealing and pressure testing, we measure airflow at each register to confirm the fix. If the problem persists, we’ll tell you honestly whether it’s a duct issue or something else.
A written price before we start, then two to four hours of work depending on system size. We access attic ductwork, seal all reachable joints with mastic and mesh tape, seal the air handler cabinet, and run a static pressure test to verify. We leave the site clean. The 365-Day Done Right Promise covers every joint we seal. If something fails, we return at no charge. Call (361) 326-5060 to schedule.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Scenic Oaks and the greater Texas Hill Country since 2004.