Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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.
Abatement Technologies Duct Sealing in Houston: What to Know First
We seal ducts on Abatement Technologies systems throughout Houston, and most jobs are completed in a single visit. You’ll get a written price before any work starts, and the repair is covered by our 365-Day Done Right Promise. If you own an Abatement Technologies air cleaner, filtration unit, or duct run and you’re losing conditioned air into your attic or walls, call (713) 936-5800 and we’ll tell you exactly what it’ll take to fix it.
This page is for Houston homeowners who have Abatement Technologies equipment tied into their ductwork and need the leaks found and sealed properly. Not a brand brochure. Not a generic duct sealing pitch. The specifics that matter to your system.
How Abatement Technologies Products Fail – and How We Fix Them
We see the same weak points on Abatement Technologies installs across Houston, from Katy to Kingwood. Here’s what actually goes wrong and what we do about it:
- Filter housing flange separation on portable HEPA units. The Abatement Technologies HEPA-AIRE PAS and Predator series route air through a flexible collar that connects to ducting. Houston’s humidity breaks down the adhesive on those factory flanges over time. The housing cracks at the collar joint and the unit starts pulling unfiltered attic air. We remove the old collar, re-flange with a rigid mechanical connection, and seal the seam with mastic so it holds through Houston’s wet season.
- Cabinet seam leaks on the PRED750 and PRED1200. These units were built as negative air machines, not residential HVAC. When they get repurposed for whole-home filtration in Houston, the cabinet seams that were fine for a construction site start weeping air. We see it most in older Energy Corridor homes where the unit was installed in a hot attic. The fix is a full cabinet seam re-seal with UL-listed mastic, not tape. Tape fails in Houston attic heat by August.
- Duct collar deformation on the H260 and H160 series. The sheet metal collars on these units are thinner than what we see on Trane or Carrier residential air handlers. When a Houston crew over-tightens the duct clamp during the original install, the collar ovates. That creates a permanent gap that no amount of tape will close. We re-round the collar, install a reinforcing ring, and seal with mastic and fiberglass mesh. That repair lasts.
- Return-side leakage starving the unit. Abatement Technologies blowers are designed for high static pressure. When the return duct leaks in a Houston attic, the unit pulls hot, humid air through the leak instead of house air. The blower works harder and the homeowner’s electric bill climbs. We pressure-test the return side with our Nikro negative-air rig to find every leak before sealing. Most companies seal the supply side and call it done. That misses half the problem.
- Condensation damage on duct boots in high-humidity run. Any duct system in Houston has condensation risk, but Abatement Technologies units that cycle on and off create sharper temperature swings. Boots near the unit sweat more. Over a few years, the mastic at the boot-to-plenum joint breaks down. We see rusted boots and crumbling sealant on installs that are only six or seven years old. We replace the boot if it’s compromised and reseal the joint with a water-resistant mastic compound rated for Houston’s humidity.
Styles & brands we work with




Our Abatement Technologies Duct Sealing Process
Here’s how a duct sealing job goes with our crew, start to finish:
- 1
Call and describe the system. We’ll ask what Abatement Technologies unit you have, where it’s installed, and what you’re seeing – hot rooms, dust buildup, high bills. Then we book a window that works and we arrive inside it.
- 2
Full duct inspection with negative-air testing. We run our Nikro negative-air machine on the system to find every leak, not just the obvious ones. This is how we know what we’re sealing before we quote anything.
- 3
Written price, no surprises. We hand you a price for the whole job before we touch a tool. It doesn’t move. If we find something during the repair that wasn’t in the quote, we stop, show you, and write a new number. You approve it before we go further.
- 4
The seal. We use fiberglass mesh and UL-listed mastic on all duct joints, boots, and plenum connections. For Abatement Technologies cabinet seams and collars, we use mechanical reinforcement where the metal has weakened, then seal. No tape. Tape on ducts in Houston is a temporary patch.
- 5
Re-test and verify. After the mastic cures, we run the negative-air test again and show you the before-and-after numbers. You’ll see the leak rate drop on the gauge.
- 6
Cleanup and the written guarantee. We leave the site the way we found it – no mastic smears, no debris, no tools left behind. You get the 365-Day Done Right Promise in writing. It says if the seal fails within a year, we come back and fix it at no charge.
See the difference
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After
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After
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AfterWhat Abatement Technologies Duct Sealing Costs in Houston
Expect to pay between $450 and $1,200 for a typical Abatement Technologies duct sealing job in Houston, depending on how many leaks we find and where they are. Simple collar fixes and small seam leaks run $450 to $700. A full cabinet re-seal plus multiple duct joints runs $800 to $1,200. If boots need replacing due to rust or warping, that adds $75 to $150 per boot.
What moves the price: access to the unit, how many joints need sealing, whether boots are compromised, and how much mastic the job consumes. We don’t do per-vent pricing or bait coupons. One flat price for the whole system, agreed before work starts. Call (713) 936-5800 for a free estimate – we’ll come out, test, and give you a real number.
Why Houston Homeowners Call Hollis Air Duct Houston for Abatement Technologies Work
We’ve been sealing ducts in Houston since 2004, and we cut our teeth on systems that other crews walked away from. Roy Castellanos and his team have worked on Abatement Technologies units in homes and businesses across the area for well over a decade. We know these machines, their weak points, and how Houston’s climate punishes them.
Every job gets the same treatment: written price first, background-checked and uniformed technicians inside your home, and a 365-Day Done Right Promise that’s printed on the invoice. If the seal fails, we come back free. No negotiation, no “well, that’s not covered.” We also work on Lennox, Trane, and Carrier systems, so if your Abatement Technologies unit shares ductwork with a conventional air handler, we handle the whole run in one visit.
As Roy puts it: “Clean air doesn’t announce itself – you just stop noticing the problem.” That’s the standard. We seal it right the first time, test it, and put the guarantee in writing.
FAQs
No. Duct sealing does not modify the internal components of your Abatement Technologies unit. We work only on the cabinet exterior seams, collars, and connected ductwork. As an independent Abatement Technologies service provider, we don’t alter the unit’s motor, controls, or filtration media. Your manufacturer warranty remains intact. If you want certainty, we’re happy to walk you through exactly what we’ll touch on your specific model before any work begins.
In many cases, yes. We can source OEM collars, flanges, and cabinet components for Abatement Technologies units through our supply channels. But we also recommend quality aftermarket reinforcement parts in some situations – for example, when an OEM collar has already deformed once due to Houston attic heat, an aftermarket reinforcing ring is often the more durable fix. We’ll show you both options with real prices and let you choose. Call (713) 936-5800 and we’ll check parts availability for your specific model.
Most Abatement Technologies duct sealing jobs in Houston are done in one visit, typically four to eight hours depending on the number of leaks and whether boots need replacing. We don’t rush the mastic cure time – that’s a mistake a lot of crews make. If it’s a big job or high-humidity day, we’ll schedule the re-test properly. You’ll know the timeline before we start.
Because they’re not actually duct sealing. A $99 “duct sealing special” in Houston usually means spraying a thin aerosol sealant through the register and calling it done, or taping a couple of visible joints and leaving. Real duct sealing means finding every leak, sealing with mastic and mesh that lasts, and testing afterward to prove it. That costs more because it’s more work. Our price is written before we start, it doesn’t change at the door, and the work holds up. If you get a quote that’s dramatically lower, ask them what exactly they’re sealing and whether they test before and after.
We run a before-and-after negative-air test and show you the numbers on the gauge. You’ll see the leak rate drop in real time. We also document the work with photos of every joint and seam we sealed. Between the test data, the photos, and the 365-Day Done Right Promise in writing, you’ll know exactly what was done and have recourse if anything fails. Call (713) 936-5800 to book a test and get a real quote.
Written by Roy Castellanos, Owner, Hollis Air Duct Houston at Hollis Air Duct Houston, serving Houston and nearby areas.