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 Arlington
Duct sealing in Arlington typically runs $450 – $1,200 for a whole-home seal, and most jobs are completed in a single visit. If you’re living in a 1960s or 1970s ranch off Arkansas Lane or Matlock Road, there’s a fair chance your flex duct has been cooking in an attic that hits 140°F every August. That’s not a guess. Our crews see it weekly.
We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and we’ve been dispatching to Arlington from our Dallas-Fort Worth office since 2004. When you call (361) 326-5060, a live person answers, 24 hours a day. We don’t do voicemail loops. We don’t do callback queues. We schedule you, show up inside the window, and give you a written price before any work starts. That’s The Garrison Standard, and it’s how we operate in Arlington, Mansfield, Kennedale, and every neighborhood in between.
Arlington’s housing stock is different from the new construction going up in Frisco or McKinney. You’ve got decades of original flex duct, original mastic that turned to dust, and attics that function like ovens nine months of the year. Sealing ducts here isn’t about chasing a few leaks with a smoke pencil. It’s about finding the crushed runs, the disconnected boots, and the heat-degraded liners that are pumping fibers into your supply air. Then fixing them.
Why Hollis Air Duct Cleaning Is Arlington’s Preferred Duct Sealing Company
We’ve built our reputation in Arlington on showing up when we said we would and leaving the site clean. That’s The Garrison Code. Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive.
Every repair we perform in Arlington is backed by our 365-Day Done Right Promise. If the work fails within a year, we come back and make it right at no charge. That includes a free second visit. We put it in writing on every job. Competitors in this trade rarely match that in writing.
Our pricing doesn’t move at the door. We inspect, we write the price down, and that’s what you pay. No per-vent nickel-and-diming. No bait-and-switch. Arlington homeowners have been burned by that routine before, and we don’t play it.
We know the local conditions that shape the work. The oak pollen in April, the ragweed in September, the humidity that never really breaks. We’ve worked in the attics off Cooper Street, Green Oaks Boulevard, and Pioneer Parkway. We know what 140°F attic heat does to a 1975 flex run. That local knowledge changes how we approach the job.
Duct Sealing Services in Arlington
Duct Sealing Services in Arlington start with understanding what you’re actually sealing. In many homes here, especially the ranch-style builds from the 1960s through the 1980s, the ductwork has deteriorated past the point where mastic alone will fix it. We inspect first. Then we quote. Then we work.
A typical whole-home duct sealing in Arlington runs $450 – $1,200. Smaller partial seals or single-run repairs can land in the $200 – $450 range. The price depends on accessibility, the condition of the existing duct, and whether we’re sealing metal trunk lines or replacing damaged flex runs before the seal goes on. We give you that number in writing before we touch anything.
Leak Detection and Mastic Sealing
We pressurize the system and use smoke or theatrical fog to find every leak point, not just the obvious ones. Then we seal with mastic and fiberglass mesh tape, not duct tape. Duct tape fails in Arlington attics. Mastic doesn’t. We apply it to joints, boots, and connections, and we verify the seal with a second pressure test.
Flex Duct Replacement and Reconnection
Here’s the reality in Arlington: if your flex duct inner liner has delaminated from years of attic heat, sealing over it traps loose fibers in your air supply. We cut out the damaged section, install new flex duct with proper supports and connections, then seal the new joints. The repair comes before the seal. That’s the difference between a fix and a cover-up.
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.
Duct Insulation in Arlington
Duct Insulation in Arlington addresses a problem that sealing alone can’t solve. Your ducts run through attics that exceed 140°F in summer. Even a perfectly sealed duct will bleed conditioned air through thin or degraded insulation. You’re paying to cool air that warms back up before it reaches your vents.
Whole-home duct insulation in Arlington typically runs $800 – $2,000, depending on linear footage and whether we’re wrapping existing metal trunk lines or replacing insulated flex duct entirely. Partial insulation for a single zone or problem run usually falls between $300 – $700. We quote in writing after inspection.
R-Value Upgrades for Attic Runs
Original duct insulation in Arlington homes is often R-4 or R-6, which isn’t enough for our attic conditions. We upgrade to R-8 or higher where accessible, using foil-faced fiberglass wrap or replacing with pre-insulated flex duct. The goal is keeping 55°F air at 55°F until it hits your living room.
Vapor Barrier Repair
Humidity in Arlington is constant. Damaged vapor barriers on duct insulation let moisture condense on cool metal surfaces. That moisture feeds mold. We repair or replace compromised vapor barriers as part of the insulation job, not as an add-on. It’s part of doing it by the book.
Trusted Brands We Service in Arlington
We stock parts and materials from Aprilaire, Abatement Technologies, and Guardsman for Arlington jobs, which means faster turnaround and no waiting on freight from out of state. Our equipment roster includes Rotobrush rotary brush systems and Nikro negative-air machines, the same tools commercial crews use. When we find a failed component during sealing or insulation work, we replace it with material that matches the spec, not whatever’s cheapest at the hardware store. Arlington homeowners don’t need to wait two weeks for a specialty part. We keep the common sizes and fittings on the van.
Common Duct Sealing Problems We See in Arlington Homes
- Heat-degraded flex duct liners. Arlington attics routinely exceed 140°F in summer, and original flex duct from the 1970s and 1980s has an inner liner that literally cooks off. Sealing over it without replacement locks those fibers into your air supply. We replace the damaged section first, then seal.
- Disconnected boots and crushed runs. Poor original installation plus decades of rodent activity in Arlington’s older ranch attics leaves return boots hanging open and flex runs crushed over joists. Mastic can’t reconnect a duct that’s not physically connected. We reconnect or replace, then seal.
- Mold and allergen buildup before sealing. High spring pollen from oak and grass, combined with humid summers, leaves mold and debris inside ducts. Seal that in and you’ve sealed the problem in too. We source-remove with rotary brushing and HEPA vacuuming under negative pressure before any sealant goes on.
- Failed original mastic at trunk line joints. Metal trunk lines in Arlington’s older homes were sealed with mastic that turned brittle after 30 – 40 years. It cracks, it flakes, it falls off. We scrape the old material, clean the joint, and reapply fresh mastic with mesh reinforcement.
Pricing for Duct Sealing in Arlington, TX
Here’s what duct sealing costs in Arlington, honestly stated, so you know before you call.
| Service | Typical Range |
|---|---|
| Whole-home duct sealing (mastic + mesh) | $450 – $1,200 |
| Partial seal or single-run repair | $200 – $450 |
| Flex duct replacement + sealing | $300 – $800 per run |
| Whole-home duct insulation | $800 – $2,000 |
| Partial insulation / single zone | $300 – $700 |
What moves the price? Accessibility of the attic, the condition of existing ductwork, and whether we’re sealing accessible joints or replacing damaged runs first. We don’t quote over the phone without seeing the job. We do give free estimates, and we write the price down before any work starts. That price does not move at the door. Call (361) 326-5060 to schedule yours.
We Also Serve Cities Near Arlington
Our crews work throughout the Dallas-Fort Worth metroplex, including Duct Sealing in Arlington and surrounding communities. We regularly dispatch to Mansfield, Kennedale, Burleson, and Cedar Hill. If you’re in one of these areas and your home has the same vintage ranch construction and attic conditions we see in Arlington, the same pricing and standards apply. Call (361) 326-5060 and we’ll get you scheduled.
Serving Arlington, TX - Our Local Coverage Area
We’re based in the Arlington 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 Arlington
Arlington’s housing stock is decades older than the new construction in Frisco or McKinney, with original flex duct that has endured 140°F attic heat for 40 – 50 years. That combination of age and thermal stress degrades liners, loosens connections, and creates leaks that newer systems simply don’t have yet. Call (361) 326-5060 for a free inspection and written estimate.
We can seal flex duct joints and connections with mastic if the inner liner is intact. If the liner has delaminated from heat damage, which is common in Arlington attics, sealing over it traps loose fibers in your air supply and we replace the damaged section first. Our Duct Sealing team inspects every run before recommending repair or replacement.
We pressurize the system and use smoke or theatrical fog to visualize airflow, then follow up with a camera inspection through the duct runs. In Arlington’s low-clearance ranch attics, we also physically trace accessible lines to find crushed or disconnected sections that pressure tests alone might miss. Call (361) 326-5060 to schedule this inspection.
Yes. High spring pollen loads and year-round humidity promote mold and debris accumulation inside ducts. Sealing a duct that still holds that buildup seals the problem inside. We always source-remove contaminants with rotary brushing and HEPA vacuuming under negative pressure before applying any sealant. That’s standard procedure for Arlington conditions.
In a typical 1960s – 1980s Arlington ranch, duct sealing fixes conditioned air leaking into the attic through cracked mastic at trunk joints, reconnects boots that have pulled loose from decades of thermal cycling, and restores airflow through runs that were crushed or poorly supported. The result is more even temperatures, lower utility bills, and less dust. Call (361) 326-5060 for a free estimate and written quote.
Ready to stop cooling your attic and start cooling your home? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free estimate. We’ll inspect your Arlington ductwork, write the price down before any work starts, and back every repair with our 365-Day Done Right Promise. That’s The Garrison Standard. That’s how we work.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Arlington since 2004.