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.
Fast, Reliable Duct Sealing Across Palmer
Duct sealing in Palmer, TX typically runs $450 – $950 for a whole-home system, with most jobs completed in a single visit after a written quote is approved. We dispatch our crews from our Dallas-Fort Worth coordination office and route them directly to Palmer properties, which means we’re familiar with the farm-road approaches and the older ranch-style layouts that dominate much of the town’s housing stock. Call us at (361) 326-5060 for a free estimate, and we’ll give you a written price before any work starts.
Palmer sits on the blackland prairie where north winds carry fine agricultural dust straight through window seals and into HVAC systems. That silt doesn’t just settle on windowsills, it pressurizes ductwork through every tiny gap, making sealed joints fail faster here than in more sheltered suburban environments. We’ve worked on homes near the downtown grid and out along the rural residential edges, and the pattern is consistent: Palmer ducts work harder and leak sooner because of what’s blowing outside.
Our Duct Sealing team uses mastic compound and metal-backed tape, not the hardware-store foil that peels off after two seasons of Texas heat. We also handle Air Duct Cleaning in Palmer and Dryer Vent Cleaning in Palmer for homeowners who want the full system addressed in one visit.
Why Hollis Air Duct Cleaning Is Palmer’s Preferred Duct Sealing Company
We’ve been serving Ellis County since 2004 as part of the Garrison Partners family, and Palmer has been on our route map from the beginning. Our technicians know the difference between a mid-century ranch near downtown with original galvanized ductwork and a 2005 rural build with flex duct that squirrels have been investigating. That local familiarity means we arrive with the right materials instead of making a supply run to Waxahachie mid-job.
Roy Castellanos built this operation on The Garrison Standard: arrive inside the quoted window, price in writing before touching anything, complete the job by the book, and leave the site clean. Every technician is background-checked and uniformed, and our 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 when your AC is dumping conditioned air into the attic.
Our 365-Day Done Right Promise covers every duct sealing job in writing. If the seal fails within a year, we return and make it right at no charge, including a free second visit. That’s not a verbal assurance, it’s printed on your invoice.
Duct Repair in Palmer
Duct Repair in Palmer often starts with a homeowner noticing hot rooms in summer or a sudden spike in their electric bill after a windy spring. The blackland prairie soil is fine enough to infiltrate even small separations in duct joints, and once that grit accumulates, it acts like sandpaper on connections every time the blower cycles. We inspect the full run with a camera when accessible, identify separated seams, crushed flex sections, or corroded metal, then restore airflow with mechanical repairs before sealing.
When Repair Comes Before Sealing
Some Palmer homes need duct repair before sealing makes sense. A crushed flex duct behind a hall closet or a rusted-out galvanized section from the 1960s won’t hold a seal, and we’re upfront about that during inspection. We’ll show you the camera footage and explain whether repair, replacement, or sealing is the right sequence.
Materials That Hold Up to Palmer Conditions
We use mastic rated for 200°F continuous exposure and metal-backed tape with acrylic adhesive, not the rubber-based stuff that turns gummy in Texas attics. For older Palmer homes with significant leakage, we may recommend Aeroseal technology, which pressurizes the duct system and seals leaks from the inside with a polymer that remains flexible for decades.
Air Duct Sealing in Palmer
Air Duct Sealing in Palmer is the most cost-effective efficiency upgrade most homeowners overlook, especially after a dry winter when thermal expansion has opened new gaps at joints and plenum connections. A typical Palmer home loses 20 – 30% of conditioned air through duct leakage, which means your compressor runs longer, your bills climb, and the fine blackland dust gets drawn into return leaks from the attic or crawl space. Our sealing process pressurizes the system, identifies every leak with a calibrated fan and smoke pencil, then seals accessible joints with mastic and tape while documenting before-and-after leakage rates.
The Inspection Process
We start every Palmer job with a duct blaster test when the system configuration allows. This gives us a baseline CFM leakage number, which we compare against the post-seal result. Homeowners see the improvement in writing, not just a technician’s word that “it’s better now.”
Sealing Hard-to-Reach Runs
Many Palmer ranch homes have ductwork threaded through tight attic spaces with limited access. For these, we use extendable applicators and remote-camera guidance to reach joints that would otherwise stay leaky. If Aeroseal is appropriate, we seal from the inside without tearing open walls or ceilings.
Trusted Brands We Service in Palmer
We stock sealing materials and filtration components from Honeywell, Aprilaire, and Abatement Technologies, the same brands commercial HVAC contractors specify for schools and medical facilities. For Palmer homeowners, this means no waiting on special orders when a plenum connection needs a reinforced collar or a return drop requires a new filter rack. Our Nikro negative-air equipment keeps dust contained during the sealing process, and our Rotobrush rotary systems clean the duct interior before we seal, so we’re not trapping debris behind fresh mastic. If your system uses a Honeywell electronic air cleaner or an Aprilaire media filter, we inspect the housing seal as part of the job, since a leaky filter bypass renders even the best filtration ineffective.
Common Duct Sealing Problems We See in Palmer Homes
- Return leaks pulling attic dust. In Palmer’s older ranch homes, return ductwork often runs through unconditioned attic space. When joints separate, the negative pressure draws in 140°F attic air loaded with blackland prairie dust, which explains the reddish-brown grime our technicians find coating blower wheels and evaporator coils.
- Flex duct sagging at supports. Rural residential builds from the 1990s and 2000s around Palmer’s outskirts used flex duct strung between trusses. Over years of thermal cycling, the straps loosen and the duct kinks or pulls free at the collar, creating leaks that sheet metal systems don’t experience.
- Plenum seams opened by vibration. The constant blower operation required by Palmer’s long cooling season vibrates sheet metal plenums until corner seams crack. We reinforce these with drive cleats and mastic rather than simple tape, which fatigues under the same vibration.
- Boot connections separated from drywall. In mid-century Palmer homes, supply boots were often nailed to framing with minimal overlap into the ceiling or wall cavity. Seasonal expansion of the wood frame opens a gap between boot and drywall, leaking conditioned air into the wall space instead of the room.
Pricing for Duct Sealing in Palmer, TX
A typical duct sealing job in Palmer runs $450 – $650 for a single-system home with accessible ductwork and moderate leakage. Homes with multiple HVAC systems, extensive flex duct in tight attics, or the need for Aeroseal interior sealing typically fall in the $700 – $950 range. We do not quote per-vent or per-register pricing, which is how the bait-and-switch operators hook you with a low number that triples once they’re inside. Our price is one flat fee per system, agreed in writing before work starts, based on what we find during inspection.
What moves the number: system count, attic accessibility, whether duct cleaning is needed before sealing, and whether repairs are required before sealing can be effective. Every Palmer estimate is free, and we explain the full scope before you commit. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Palmer
Our crews cover the full Ellis County area, including Palmer and neighboring Ennis, Red Oak, Waxahachie, and Wilmer. Dispatch is coordinated from our Dallas-Fort Worth office, with routing optimized to keep appointment windows tight no matter which town we’re heading to.
Serving Palmer, TX - Our Local Coverage Area
We’re based in the Palmer 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 Palmer
We typically schedule Palmer appointments within 2 – 4 business days, with routing from our Dallas-Fort Worth coordination office. Call (361) 326-5060 for next available openings, estimates are free.
We seal ducts across all of Palmer, from the mid-century homes near the downtown grid to the rural residential properties on the outskirts. The farm-road access doesn’t affect our scheduling.
We do not offer after-hours emergency duct sealing, as this is a scheduled diagnostic and repair service. Our phones are answered by a live person 24/7 to book your appointment, and we prioritize Palmer jobs where the duct leakage has caused complete system failure or unsafe conditions.
Pricing is consistent across our Ellis County service area, including Palmer, Ennis, Red Oak, Waxahachie, and Wilmer. The flat fee per system depends on your home’s duct configuration, not your ZIP code. Call (361) 326-5060 for your written quote.
Every duct sealing job in Palmer is covered by our 365-Day Done Right Promise in writing. If any sealed joint fails within one year, Hollis returns and makes it right at no charge, including a free second visit. The guarantee is printed on your invoice, not implied.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Palmer and Ellis County since 2004.




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