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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After
Before
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Before
AfterAbatement Technologies Duct Sealing & Repair: The Round Rock Owner’s Guide
CleanRun Air Duct Cleaning Round Rock stocks and installs Abatement Technologies-compatible duct sealing and repair components, with typical installed pricing from $340 to $780 per system depending on access and extent of repair. Most Abatement Technologies sealing jobs in Round Rock are completed in a single visit because we carry the PREDATOR 750 and CAP600-compatible collar assemblies, flex-duct repair sleeves, and negative-pressure sealing compounds on every truck. We also maintain parts cross-reference for Lennox, Trane, and Carrier systems when mixed-brand ductwork is involved.
Most Round Rock homeowners discover their Abatement Technologies duct sealing has failed when a room stops heating or cooling evenly, or when their energy bill jumps 15-20% without explanation. The camera goes in first. Then we talk.
Which Abatement Technologies Models This Applies To
Abatement Technologies builds negative-air machines and containment systems used in remediation and duct cleaning, but the sealing components that fail are the collar adapters, flex-duct transition sleeves, and HEPA-filter plenum gaskets on their portable units. The critical identifier is the model plate on the blower housing: PREDATOR series (600, 750, 800) use 10-inch collar assemblies with locking cam levers, while the CAP series (600, 1200) use 12-inch quick-connect rings with silicone compression gaskets.
We see a specific compatibility gotcha in Round Rock homes built 2015-2020: builders sometimes spec’d PREDATOR 750 units with aftermarket 8-inch duct transitions to save on flex-duct cost. The 8-to-10-inch step creates a stress point where the collar fatigues. We stock both OEM Abatement Technologies collars and quality aftermarket equivalents from Ductmate and Flexmaster that match the locking geometry without the 6-week OEM backorder. The aftermarket collars we use carry the same 2-year material warranty and cost 30-40% less, which we note in writing before you decide.
Signs Your Abatement Technologies Duct Sealing & Repair Is Failing
- Uneven room temperatures. When a collar gasket compresses or a flex sleeve separates, conditioned air leaks into the attic or crawl space before reaching the register. The room farthest from the unit goes cold first, and homeowners in Teravista often notice it in the upstairs bedrooms because the PREDATOR 750’s 10-inch collar can’t maintain seal pressure against the thermal expansion Round Rock’s 100-degree summers put on ductwork.
- Dust streaks at ceiling registers. A failed plenum seal sucks attic air into the return side, pulling fiberglass and construction dust through gaps the filter never sees. We photographed a 3-inch debris build-up at the first elbow of a Stone Oak Ranch home last March where the CAP600’s gasket had hardened to plastic.
- Whistling or rumbling near the unit. Air escaping through a cracked collar adapter creates turbulent noise you can hear from the hallway. The sound changes when the blower cycles on and off, which distinguishes it from normal duct expansion noise.
- Spiking energy bills with no thermostat change. A 10% leak at the main trunk collar can raise HVAC runtime 25-30% because the system never reaches setpoint. We document this with static pressure readings before and after repair.
- Visible gaps or sagging flex duct at the unit connection. The Abatement Technologies quick-connect ring uses a silicone gasket that degrades in Texas attic heat (140+ degrees in July). After 6-8 years the gasket hardens and the ring loosens, which is why we inspect this component specifically on any unit over 5 years old.
BeforeAfterReplacement Cost & What’s Included
| Component | Typical Range (Installed) | Warranty |
|---|---|---|
| Collar adapter / gasket replacement (single) | $180 - $290 | 2 years parts & labor |
| Flex-duct transition sleeve repair | $220 - $380 | 2 years parts & labor |
| Full plenum reseal (CAP/PREDATOR series) | $480 - $780 | 365-Day Done Right Promise |
| Static pressure test & documentation | Included | Photo record delivered |
What drives the range: attic access (blown insulation adds time), extent of gasket degradation (single collar versus multiple transition points), and whether the flex duct itself has fatigued beyond the collar. Every quote is written before work starts under Haven Standard Clause 1. No per-vent pricing, no add-ons once the panel comes off. The photo record of every duct run, before and after, is included as a standard deliverable.
DIY or Call Us?
There’s a safe middle ground and a hard stop. Homeowners can inspect the collar connection visually, check for loose cam levers, and listen for the whistle pattern we described above. What you cannot safely do is disturb a sealed negative-air connection while the HVAC blower is energized, or attempt to torque a PREDATOR 750’s locking ring without knowing the proper sequence, which cracks the aluminum casting. We’ve replaced three homeowner-damaged collars in Round Rock this year alone.
The other DIY trap is using hardware-store tape or mastic on a component rated for negative-pressure containment. Standard foil tape fails at 0.5 inches water column; Abatement Technologies collars operate at 2.0+ inches. The right sealant is a two-part compound we apply under negative pressure so it draws into the gap rather than bridging over it. Call (737) 259-5752 and we’ll put a written number next to whatever you’ve been quoted.
FAQs
In Round Rock’s climate, with attic temperatures exceeding 140 degrees in summer and freeze-thaw cycles in winter, OEM silicone gaskets typically last 6-8 years and quality aftermarket equivalents 5-7 years. The PREDATOR 750’s aluminum collar casting itself lasts 15+ years if not over-torqued. We inspect collar condition as part of any duct service and note expected remaining life in writing. Call (737) 259-5752 for an exact quote - estimates are free.
Once a silicone gasket has hardened or taken a compression set, no surface repair restores its sealing function. Temporary tape or mastic will leak again within weeks because the underlying gasket no longer provides uniform pressure. We replace the gasket and verify seal integrity with a static pressure test, documented in your photo record. Call (737) 259-5752 for an exact quote - estimates are free.
A single collar or gasket replacement takes 90 minutes to 2 hours including access, documentation, and pressure verification. A full plenum reseal with multiple transition points runs 3-4 hours. We schedule for the time the work actually needs, not a 4-hour window. Call (737) 259-5752 for an exact quote - estimates are free.
Yes. We carry PREDATOR and CAP series collar assemblies, gasket kits, flex-duct repair sleeves, and negative-pressure sealant on every CleanRun truck serving Round Rock. If your unit uses a discontinued adapter or an odd builder-spec transition, we’ll source it within 24 hours and honor the written quote. Call (737) 259-5752 for an exact quote - estimates are free.
CleanRun Air Duct Cleaning Round Rock is an independent service provider, not affiliated with Abatement Technologies. We service Abatement Technologies equipment using OEM and quality aftermarket parts under the H.A.V.E.N. Standard.
Tomas Reyes runs the crew. He grew up in Queens, NY, where apartment buildings with ancient ductwork were just part of the landscape, and he picked up the fundamentals at Queensborough Community College before spending the better part of two decades doing hands-on air duct work that taught him what textbooks skip over. He and his crew have served Round Rock for years, including jobs in Stone Oak Ranch and Teravista where cedar pollen and construction dust have a way of turning return plenums into something you’d rather not breathe. Tomas is known for running a camera through every main trunk line before quoting a single dollar figure, because he thinks a homeowner deserves to see exactly what they’re paying to fix.
Ready to see what’s actually going on inside your ductwork? Call (737) 259-5752. A live person answers, we’ll schedule a time that works, and you’ll get a written price before any work starts. Every job includes the documented photo record and the 365-Day Done Right Promise, backed in writing.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning Round Rock at CleanRun Air Duct Cleaning Round Rock, serving Round Rock and nearby areas.