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 Argyle
Duct sealing in Argyle typically runs $350 – $850 for a whole-home seal, depending on system size and accessibility, and most jobs finish in a single visit. We dispatch crews from our Dallas-Fort Worth office and regularly work the subdivisions along FM 407, Old Justin Road, and the newer phases of Canyon Falls and Harvest. If your vents blow weakly, your upstairs rooms never cool evenly, or your energy bills spike every July, you’re probably leaking conditioned air into your attic or crawl space. Call us at (361) 326-5060 for a free inspection and written quote.
Why Hollis Air Duct Cleaning Is Argyle’s Preferred Duct Sealing Company
We’ve been sealing ducts in North Texas since 2004, and Argyle’s particular mix of housing keeps us busy year-round. Our Duct Sealing team knows the difference between a 2022 tract home in Canyon Falls with flex duct runs stapled too tight, and a 1985 ranch on five acres off Old Justin Road with original metal ductwork and single-return design. That matters because the sealant method, the access points, and the labor hours change completely.
Argyle homeowners call us back because we price in writing before we touch anything, and our 365-Day Done Right Promise means if a seal fails within a year, we return at no charge. Our technicians are background-checked, uniformed, and trained to The Garrison Code: arrive inside the window, explain what they found, show you the gaps with a smoke pencil or thermal camera, then seal and test. Phones are answered by a live person 24 hours a day, seven days a week, so you’re never waiting through a voicemail loop when you’ve got a question about your appointment.
Duct Repair in Argyle
Duct Repair in Argyle covers everything from patching a torn flex duct run crushed by a storage box in the attic, to replacing rusted metal trunk lines in older ranch homes along FM 407. Most repairs we handle here fall into two categories: new-construction damage from builders cutting boots after insulation was blown, and age-related failure in the 1970s – 90s housing stock that predates Argyle’s recent growth.
Typical duct repair in Argyle costs $200 – $600 for localized fixes, and $800 – $1,500 if we’re replacing long trunk sections or multiple branch runs. We always inspect the full system first, because a repair at one point often reveals leaks upstream that have been wasting energy for years.
Crushed or Disconnected Flex Duct
In Argyle’s newer subdivisions like Harvest, we find flex duct flattened by installers who pulled it too tight across trusses, or later crushed by homeowners storing holiday decorations. The fix is straightforward: we replace the damaged section with properly supported flex duct, seal the collars with mastic, and verify airflow at the register with a digital manometer.
Corroded Metal Trunk Lines
Older Argyle homes with original galvanized steel duct often show rust where condensation collects at low points, especially on north-facing roof sections that stay cooler during our humid summers. We cut out the corroded span, fabricate a replacement from sheet metal, and seal with water-based mastic rated for wet locations.
Air Duct Sealing in Argyle
Air Duct Sealing in Argyle closes the gaps, seams, and joints where conditioned air escapes before reaching your rooms. In a typical Argyle home, we measure leakage with a duct blaster or pressure pan, seal accessible joints with mastic or foil tape, and sometimes apply aerosol sealant for hard-to-reach trunk lines. The goal is simple: what your HVAC produces should arrive at the vent, not feed your attic insulation.
Whole-home air duct sealing in Argyle runs $350 – $850 for most residential systems. Larger homes above 4,000 square feet, or systems with multiple air handlers, can run higher. We include a post-seal leakage test so you see the before-and-after numbers in writing.
Aerosol Duct Sealing for Tight Spaces
Some Argyle homes, especially the custom builds in Canyon Falls with complex rooflines, have duct runs buried so deep in spray-foam insulation that manual sealing is impossible. We partner the Nikro negative-air system with aerosol sealant technology to seal from the inside, pressurizing the duct and atomizing sealant particles that bond only at leakage points.
Mastic Sealing at Plenums and Boots
The connection between your air handler plenum and the trunk line is where we find the worst leakage in Argyle homes. Builders often use foil tape alone, which dries and peels within five years in our 140°F summer attics. We strip old tape, apply fiber-reinforced mastic, and mechanically fasten the joint so it holds through North Texas temperature swings.
Trusted Brands We Service in Argyle
Our vans carry sealing and filtration products from Honeywell, Aprilaire, and Abatement Technologies, the same brands commercial HVAC contractors specify for hospitals and schools. For Argyle homeowners, that means no waiting on special orders when we find a failed component during sealing. If your system uses Honeywell media filters or an Aprilaire whole-house dehumidifier tied to the ductwork, we can integrate the seal around those components without disrupting their function. We also stock mastic, foil tape, and mechanical fasteners rated for the temperature extremes our attics hit, because hardware-store tape fails here faster than it does in cooler climates.
Common Duct Sealing Problems We See in Argyle Homes
- Builder debris in new-construction returns. In Argyle’s subdivisions like Harvest and Canyon Falls, we routinely pull pink fiberglass insulation and drywall dust from return plenums. Builders blew insulation before cutting duct boots, and the vacuum effect draws that debris into the system, clogging filters and coating coils.
- Single-return systems in older ranches. The 1970s – 90s homes along Old Justin Road and FM 407 often have one central return with undersized duct, creating negative pressure that pulls attic air through ceiling penetrations. Sealing the duct helps, but we often recommend adding a return path to balance pressure.
- Condensation damage during our long cooling season. North Texas humidity means ducts sweat when cool air hits warm, poorly insulated surfaces. That moisture degrades tape adhesive and rusts metal seams. We seal with mastic rated for wet locations and check insulation integrity while we’re in the attic.
- Attic heat destroying flex duct outer wraps. Summer temperatures above 140°F in Argyle attics brittle the vapor barrier on flex duct, exposing the fiberglass core to air abrasion. Once the wrap fails, the inner liner tears next, and you’re leaking conditioned air into insulation.
Pricing for Duct Sealing in Argyle, TX
Whole-home duct sealing in Argyle typically costs $350 – $850, with most single-system homes falling in the $450 – $650 range. What moves the needle: system size (a 5-ton unit with 20+ runs takes longer), attic accessibility (crawl boards versus blown insulation you sink into), and whether we find damage requiring repair before sealing makes sense. We do not quote per-vent prices, because that encourages cutting corners on the trunk lines where the worst leaks hide. Every job gets one flat price per system, agreed in writing before we start, with no add-ons at the door. We also provide before-and-after photos of your own ducts, so you see what was sealed and why. Call (361) 326-5060 for a free estimate, or schedule online.
We Also Serve Cities Near Argyle
Our crews work Duct Sealing in Argyle regularly, and we also handle jobs in Flower Mound, Roanoke, Lake Dallas, and Denton. If you’re in one of these neighboring communities and found this page, the same pricing structure, equipment, and 365-Day Done Right Promise apply. We also offer Air Duct Cleaning in Argyle and Dryer Vent Cleaning in Argyle for homeowners who want the full system serviced in one visit.
Serving Argyle, TX - Our Local Coverage Area
We’re based in the Argyle 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 Argyle
We typically schedule Argyle appointments within 3 – 5 business days, and our Dallas-Fort Worth dispatch coordinates routes to keep arrival windows tight. Call (361) 326-5060 to check this week’s availability.
Yes, we work Canyon Falls, Harvest, and the established ranch properties along FM 407 and Old Justin Road regularly. The access and duct types differ, but our pricing structure stays the same across all Argyle zip codes.
We do not offer after-hours emergency sealing, because duct leakage is not an immediate safety hazard like a gas leak or electrical fault. If your system has failed completely, we can inspect within a few business days and seal before the next billing cycle hits.
No, our whole-home sealing rates are consistent across the Dallas-Fort Worth metro. Argyle’s newer homes sometimes require less labor because attics are cleaner and better lit, while older ranches may need more repair prep. The written quote reflects your specific home, not your city.
Every seal is covered by our 365-Day Done Right Promise: if a sealed joint fails within one year, we return and reseal at no charge, including any necessary access or materials. The warranty is in writing on every invoice, not a verbal promise.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Argyle and North Texas since 2004.