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.
Abatement Technologies Duct Sealing & Repair: The New Braunfels Owner’s Guide
We stock and install Abatement Technologies-compatible duct sealing and repair components for New Braunfels homeowners, with most repairs completed same-day at an installed price of $340-$780 depending on system access and the extent of seal degradation. You’ll usually discover the failure through uneven room temperatures, a sudden spike in summer cooling costs, or visible dust blow-by at register joints - the kind of slow leak that costs you money long before you notice the comfort problem.
CleanRun Air Duct Cleaning New Braunfels is an independent service provider, not affiliated with Abatement Technologies.
Which Abatement Technologies Models This Applies To
Abatement Technologies builds negative-air machines and containment equipment used widely in remediation and duct restoration work across New Braunfels, particularly the PREDATOR and HEPA-AIRE series. The duct sealing components we handle include the flexible connector boots, gasket sets, and HEPA-sealed transition collars that mate these units to your existing trunk lines. Model numbers live on a metal rating plate, usually on the blower housing or filter bank frame - look for a format like HEPA-AIRE 500 or PREDATOR 750, followed by a revision suffix. The critical compatibility gotcha: post-2019 units switched from 16-inch to 20-inch collar spacing on the HEPA-AIRE line, so a gasket set for a 2017 model will gap on a 2022 unit even if the model name looks identical. We carry both patterns on the truck.
For OEM versus aftermarket, Abatement Technologies sells factory gasket kits through their distribution network, but the silicone-impregnated fabric boots we source from Guardsman meet the same temperature and pressure specs at roughly 60 percent of OEM cost. We stock both and will show you the part label before installation. If your unit runs in a hot New Braunfels attic where summer ambient hits 140°F, the OEM silicone holds its compression set longer - worth the premium if you plan to keep the machine five-plus years.
Signs Your Abatement Technologies Duct Sealing & Repair Is Failing

- Uneven temperatures room-to-room. A failed collar gasket or cracked flex boot lets conditioned air leak into the attic or wall cavity before it reaches the register. The room farthest from the air handler - often a back bedroom in Canyon Lake-area homes with long duct runs - drops 4-8 degrees below the thermostat setpoint while the front rooms overcool.
- Dust accumulation on ceiling grids or register rims. Negative pressure from a leaking seal pulls attic debris into the supply stream. In New Braunfels, that debris is often limestone dust from our Hill Country geology plus fiberglass insulation fragments, which show up as a gray film you can’t wipe away permanently.
- Whistling or rushing noise near the unit. A gasket that has lost its compression set develops a high-velocity leak path. The sound changes with system stage - louder on second-stage cooling when the blower ramps up - because the pressure differential across the gap increases.
- Sudden humidity spikes in summer. A leaking return-side seal pulls hot, humid attic air into the system. The coil can’t dehumidify the extra load, so your home feels clammy even at 72°F. We see this most in homes near the Comal River where ambient humidity already runs high.
- Visible cracks or hardening in flex boots. The silicone-impregnated fabric degrades with heat cycling. After six to eight years in a Texas attic, the material goes from pliable to brittle - it will crack if you flex it by hand. We photograph this during inspection so you can see the degradation before deciding on replacement.
Before
AfterReplacement Cost & What’s Included
| Component | Parts + Labor Range | Warranty |
|---|---|---|
| Single gasket set (collar or transition) | $340-$480 | 365-Day Done Right Promise |
| Flex boot replacement with clamps | $420-$620 | 365-Day Done Right Promise |
| Multiple seal points / full plenum reseal | $580-$780 | 365-Day Done Right Promise |
What drives the range: attic access (scuttle versus pull-down stairs), whether the unit must be de-energized and locked out per electrical safety protocol, and whether adjacent ductwork shows secondary damage from the leak. Every job starts with a written price before any work begins - Haven Standard Clause 1 - and concludes with a Documented Photo Record of every seal point, included as a standard deliverable. The 365-Day Done Right Promise means if a seal fails within a year, we return and make it right at no charge, backed in writing on every invoice.
DIY or Call Us?

There’s a safe middle ground and a hard stopping point. Homeowners can inspect flex boots for visible cracking and check that collar clamps are seated - that’s it. What you cannot safely do: work inside a live plenum (240V blower and control voltage present), torque gasket compression to the spec that prevents both leak and over-compression failure, or verify negative-pressure integrity without a manometer. We’ve been called to New Braunfels homes where a well-meaning owner tightened a clamp, cracked the aged boot, and turned a $400 repair into a $700 job plus two days without cooling. The electrical hazard is real and documented. If your hands are going inside the duct envelope, the unit needs lockout-tagout - that’s Haven Standard Clause 3: Verified Crews, and it’s not optional.
Call (830) 549-6847 and we’ll quote the repair in writing before we touch a tool.
FAQs
In our climate, expect six to ten years for silicone-impregnated boots and eight to twelve for solid gasket sets, with attic temperature being the dominant variable. A unit in a ventilated attic in Gruene lasts longer than one in a sealed trunk in a direct-sun roof in Solms. We date-stamp our photo records so you have a baseline for the next inspection. Call (830) 549-6847 to schedule a look.
Sometimes a collar can be reseated and reclamped if the gasket material still has rebound. Once the silicone fabric hardens or the gasket takes a compression set (stays flattened after clamp removal), repair is temporary at best. We show you the material condition on camera before quoting either approach. Call (830) 549-6847 for a free second opinion on any written estimate.
Most single-point repairs run 90 minutes to two hours from lockout to pressure test. A full plenum reseal on a large home - common in the older two-story builds near Morningside - can take four hours. We don’t charge by the hour; the written price is the price. Call (830) 549-6847 for scheduling.
We carry both OEM and Guardsman-compatible gasket sets, flex boots in 16-inch and 20-inch collar spacing, and stainless clamp hardware for every Abatement Technologies unit we’ve encountered in New Braunfels since 2013. If your unit uses an uncommon transition size, we’ll source it within 24 hours - but same-day completion is the norm. Call (830) 549-6847 to confirm fitment against your model plate.
We also stock parts for Lennox, Trane, and Carrier systems.
Tomas Reyes learned to read ductwork at BOCES Westchester, and he’s spent well over a decade applying that training in New Braunfels attics - including the flex-duct-laden homes near the Gruene Historic District where late-eighties installs tend to surprise owners with how much debris accumulates before anyone notices. His rule, passed to every technician under the H.A.V.E.N. Standard: show the photo first, explain what you’re looking at, then talk about what happens next.
If you’re seeing dust blow-by, uneven cooling, or you’ve already got a competitor’s quote in hand, call (830) 549-6847. We’ll put our written price next to it, no charge for the comparison, and every repair we perform ships with a Documented Photo Record and the 365-Day Done Right Promise in writing.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning New Braunfels at CleanRun Air Duct Cleaning New Braunfels, serving New Braunfels and nearby areas.




Before
After
Before
After