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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AfterRotobrush Duct Repair & Sealing in Leander: What to Know First
CleanRun Air Duct Cleaning Leander provides independent Rotobrush duct repair & sealing in Leander, with most repairs scheduled within 3-5 business days and completed in a single visit. Written pricing starts at $285 for standard flex duct sealing and runs to $740 for full metal duct repair with mastic sealant on a Rotobrush-integrated system. We are not affiliated with or authorized by Rotobrush; we service their equipment as an independent Rotobrush service provider with documented photo records on every job. If you own a Rotobrush air duct cleaning machine and need the connected ductwork sealed, repaired, or insulated, call (737) 252-1285. The estimate is free, and the price we write down is the price you pay.
How Rotobrush Products Fail - and How We Fix Them
- Rotobrush Classic II and Classic III flex duct collar separation. The 8-inch flexible hose collar on these units sees repeated torque during brush reversal, especially in Leander homes where cedar pollen loads force longer run times. The collar gasket hardens and separates from the plenum connection, creating a bypass leak that drops negative pressure at the register. We remove the collar, inspect the plenum throat for fatigue cracking, and reinstall with a reinforced silicone gasket rated for the brush unit’s vibration frequency.
- Rotobbrush Beast series hose-barb stress fractures. The Beast’s higher RPM motor transfers more vibration to the hose barb fitting where it meets the main trunk. In Leander’s newer construction, particularly in Crystal Falls and Travisso, we’ve found this fracture pattern accelerated by installers who left excess hose coiled in the attic, creating torsion stress. We cut back to sound material, install a steel-reinforced barb, and support the hose with a tension relief strap.
- Rotobrush aiR+ negative-pressure port seal degradation. The aiR+’s integrated vacuum port uses a compression seal that degrades with heat cycling in Texas attics. When the seal fails, the unit loses extraction efficiency and leaks conditioned air backward through the duct run. We replace the OEM seal with a fluorosilicone equivalent that holds shape at 180°F attic temperatures, then verify with a manometer reading at the farthest register.
- Rotobrush duct run adapter mismatches in retrofit jobs. Leander homes built 2015-2020 often have 6-inch round duct runs where Rotobrush units expect 8-inch. Previous owners or handymen force adapters that create turbulent edges, collecting debris and eventually cracking at the joint. We fabricate a tapered transition from 26-gauge galvanized, seal with mastic, and photograph the airflow pattern with a smoke pencil before closing the ceiling.
- Rotobrush portable unit caster-frame cracks affecting duct alignment. The portable line’s frame flexes when wheeled across expansion joints or tile transitions, misaligning the hose angle where it enters the duct boot. This puts shear stress on the boot seal. We weld or replace the frame bracket, realign the unit with a laser level, and replace the boot seal with a UL 181-rated flexible connector.
Our Rotobrush Duct Repair & Sealing Process
- 1
Inspection with photo documentation. We feed a borescope through every accessible duct run before touching a tool. Tomas Reyes started this practice after years in the Northeast - “Show the photo first. Then talk about what comes next.” The customer sees the crack, the separation, or the debris build-up before any price is discussed.
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Written scope and price. Haven Standard Clause 1: the price is written, itemized, and signed before work begins. No exceptions. The scope specifies OEM versus quality aftermarket parts based on what we found.
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Parts selection and verification. For Rotobrush-specific components, we source OEM when the part affects warranty coverage on the cleaning unit itself. For ductwork connections, seals, and support hardware, we use trade-recognized equivalents from Guardsman or Abatement Technologies that meet or exceed original spec.
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Repair and sealing execution. Flex duct gets replaced or sleeved with metal-reinforced flex; metal duct gets patched with 26-gauge and two-coat mastic sealant; insulation gets rewrapped with vapor-barrier-facing fiberglass. Every joint is pressure-tested.
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Post-repair verification and photo record. We run the Rotobrush unit through a complete cycle, measure static pressure before and after, and photograph the sealed joints from inside the duct. The photo record, pressure readings, and written warranty are delivered as a single document.
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365-Day Done Right Promise activation. The written guarantee is in the customer’s hand before the truck leaves. If the seal fails, the pressure drops, or the noise returns, we return and make it right.
BeforeAfterWhat Rotobrush Duct Repair & Sealing Costs in Leander
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Flex duct collar reseal (Rotobrush Classic/Beast) | $285 - $420 | Attic accessibility, plenum throat condition |
| Hose barb replacement with support strap | $340 - $495 | Steel vs. aluminum barb, hose length to replace |
| aiR+ vacuum port seal replacement | $265 - $380 | Port accessibility, secondary heat damage to surrounding duct |
| 6-inch to 8-inch duct transition fabrication | $425 - $620 | Number of transitions, ceiling repair required |
| Full metal duct repair with mastic sealant | $580 - $740 | Linear feet of duct, number of joints, insulation rewrap |
These are whole-system prices, not per-vent teaser rates. The final number depends on what the camera shows and what the pressure test confirms. Every estimate is free, and we provide a Free Second Opinion on any competitor’s written estimate. Call (737) 252-1285.
Why Leander Homeowners Call CleanRun Air Duct Cleaning Leander for Rotobrush Work
We’ve worked on Rotobrush equipment in Leander since 2013, including repeat jobs in Crystal Falls where the combination of cedar pollen and construction debris from rapid development keeps ductwork under real stress. Our technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews, and they carry the license number on every written estimate. When Rotobrush parts are backordered, we also service Lennox, Trane, and Carrier integrated duct systems, so we’re not learning your layout for the first time while you wait. Every job ends with a Documented Photo Record - not a verbal summary, not a checklist tick, but timestamped images of every duct run before and after. The 365-Day Done Right Promise is printed, signed, and in your file.
FAQs
No, ductwork repair does not void the Rotobrush cleaning unit’s warranty, provided the work is performed on the building’s HVAC infrastructure and not on the Rotobrush machine itself. We document this distinction in our written scope so there’s no confusion if you later need service on the brush unit. For warranty-safe practices on the Rotobrush machine, we use OEM-specified seals and fittings where the manufacturer’s documentation requires them. Call (737) 252-1285 if you need clarification on your specific model.
Most Rotobrush duct repairs and sealing jobs in Leander are completed in 3 to 5 hours, with single-component repairs like a collar reseal often finished in under 2 hours. Full metal duct repair with mastic sealant and insulation rewrap can extend to a full day if multiple runs are involved. We schedule based on the written scope, not a fixed window, so you’re not waiting for a technician to “see how it goes.” Call (737) 252-1285 to book a free estimate with a time estimate included.
Replace if the ductwork has galvanized metal corrosion through the wall, multiple disconnected runs, or asbestos-containing insulation. Repair if the damage is localized to seals, collars, or single joint separations. We make this recommendation based on the borescope inspection and deliver it with the photo evidence, not a sales pitch. Our written scope will clearly state “repair” or “replace” with the reasoning. Call (737) 252-1285 for an honest assessment.
No. OEM parts matter for the brush unit’s motor, controller, and warranty-critical components. For duct connections, seals, and support hardware, we use quality aftermarket from Guardsman, Abatement Technologies, and Honeywell that meet or exceed the original pressure and temperature ratings. We specify which category each part falls into on the written estimate. Call (737) 252-1285 to review the parts list for your job.
We measure static pressure at the farthest register before and after the repair, and we include both readings in your Documented Photo Record. A successful seal shows increased negative pressure at the register and no smoke-pencil leakage at the joints. You receive the photos, the numbers, and the written 365-Day Done Right Promise as a single deliverable. If the readings don’t improve, we don’t close the job. Call (737) 252-1285 to schedule.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning Leander at CleanRun Air Duct Cleaning Leander, serving Leander and nearby areas.