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.
Rotobrush Duct Repair & Sealing in Aurora: What to Know First
CleanRun Air Duct Cleaning Aurora provides independent Rotobrush duct repair and sealing services across Aurora and nearby areas, with most repairs scheduled within a few business days and every job quoted with a written flat price before any work begins. We are not affiliated with or authorized by Rotobrush. As an independent Rotobrush service provider, we source OEM and quality aftermarket parts based on what the specific repair demands, and we document every duct run with before-and-after photos you’ll receive as part of the standard job record. This page is for Aurora homeowners who own a Rotobrush air duct cleaning system and need the connected ductwork sealed, repaired, or insulated. Call (720) 513-5159 for a free written estimate.
How Rotobrush Products Fail - and How We Fix Them
- Rotobrush Classic II and Classic II Plus - loose flex-duct connections at the plenum collar. The vibration from the brush motor works the flex-duct clamp loose over 40+ cleaning cycles. We find this most often in Aurora homes near the Aurora Hills Golf Course, where the original 1970s-1980s ductwork was retrofitted with flex. Our fix: remove the degraded clamp, inspect the collar for fatigue cracking, and reinstall with a wide-band tension clamp and mastic sealant rated for the temperature swing this duct sees.
- Rotobbrush Beast and Beast Elite - metal duct seam separation at the main trunk. These units move higher CFM, and when they’re connected to older galvanized steel trunks with spot-welded seams, the pressure cycling pops the seams. The symptom is a whistling noise during operation that stops when the unit does. We seal with fiberglass-reinforced mastic and mechanical fasteners, not tape alone, because tape fails within two Aurora heating seasons.
- Rotobrush aiR+ series - collapsed flex duct behind the register boot. The aiR+ units are lighter and more maneuverable, which means techs sometimes push too aggressively through tight 90-degree register boots. The flex liner kinks and eventually tears at the stress point. We cut back to sound duct, install a gradual sweep elbow where space allows, and replace the boot if the collar is deformed.
- Rotobrush BrushBeast - damaged duct insulation at the air handler connection. The BrushBeast’s larger diameter hose requires a bigger penetration in the plenum. In Aurora’s newer builds along the E-470 corridor, we’ve found builders used minimum-thickness insulation that compresses and tears at that penetration. We replace with R-6 or R-8 flex duct with integral insulation, sized for the actual hose diameter, and seal the penetration with fire-rated foam and mastic.
- Rotobrush duct vacuums generally - degraded mastic at horizontal duct runs. Aurora’s semi-arid climate with seasonal freeze-thaw cycles causes thermal expansion at horizontal runs that flex-duct handles poorly. The mastic sealant cracks first. We remove the failed mastic entirely, which most crews skip, apply new mastic to a clean surface, and reinforce with mesh on spans over 24 inches.
Our Rotobrush Duct Repair & Sealing Process

- 1
Visual and camera inspection of every duct run. We run a borescope through the system and photograph what we find - debris load, seam condition, insulation integrity. You see these photos before we discuss what needs to happen next.
- 2
Written scope and flat price delivered on site. Haven Standard Clause 1: no work starts without a written price you agree to. We itemize by repair type, not by the hour, so the price doesn’t shift if the job runs long.
- 3
Parts decision: OEM Rotobrush or quality aftermarket. For collars, clamps, and boots, we stock direct-fit OEM where available. For mastic, insulation, and hardware, we use trade-grade materials from Guardsman and Abatement Technologies that meet or exceed OEM spec. We tell you which we’re using and why.
- 4
Repair and seal with negative-pressure verification. Every sealed joint is tested under operating pressure before we close up. If it holds, we move on. If it doesn’t, we reopen and redo it - no additional charge.
- 5
Documented photo record delivered. Before-and-after photos of every repaired run, plus the written scope and your 365-Day Done Right Promise, emailed or printed before we leave.
- 6
Cleanup and final walkthrough. We show you the photos, explain what was done, and you sign off. The truck doesn’t leave until you’re satisfied.
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AfterWhat Rotobrush Duct Repair & Sealing Costs in Aurora
These are the honest ranges we quote in writing on Rotobrush duct repair jobs in Aurora. The price moves based on accessibility (crawl space versus basement), duct material (flex, metal, or duct board), and how many runs need attention.
| Repair Type | Typical Range |
|---|---|
| Single flex-duct repair or reconnection | $180 - $340 |
| Metal duct seam sealing (per trunk section) | $220 - $420 |
| Register boot replacement with sealing | $160 - $280 |
| Plenum collar repair or replacement | $200 - $380 |
| Full-system mastic reseal (10+ joints) | $480 - $760 |
| Duct insulation replacement (per run) | $140 - $260 |
We do not quote per-vent or per-square-foot. One flat price per system, agreed before work starts. Call (720) 513-5159 for a free written estimate - we’ll put our number next to any competitor’s quote under our Free Second Opinion.
Why Aurora Homeowners Call CleanRun Air Duct Cleaning Aurora for Rotobrush Work

We’ve been running Rotobrush repairs in Aurora since 2013, and we’ve learned that these units fail in predictable ways that a generic duct crew misses. Tomas Reyes, our owner and lead technician, grew up in the Bronx, learned the mechanical trades at Bronx Community College, and has handled everything from ranch homes near Buckley Space Force Base to new construction in Southlands. He uses a negative-pressure vacuum system and a rotary brush, describes exactly what he pulled out of the plenum, and quotes a flat price in writing before any equipment leaves the truck.
The 365-Day Done Right Promise is backed in writing on every job, not just stated in marketing copy. Haven Standard Clause 3: Verified Crews means background-checked, uniformed technicians identified by name before arrival. And because we also service Lennox, Trane, and Carrier systems, we understand how Rotobrush integrates with the full HVAC stack - not just the ductwork in isolation.
We show you the photo first, then we talk about what comes next.
FAQs
No - duct repair and sealing work on the permanent HVAC infrastructure does not affect your Rotobrush portable unit’s warranty, provided the repair is done to standard mechanical code and does not modify the unit itself. We document our work with photos and a written scope so there’s a clear record of what was touched. Call (720) 513-5159 if you have questions about your specific setup.
Most single-point repairs - a loose collar, a cracked boot, a separated seam - take 90 minutes to three hours from arrival to cleanup. A full-system mastic reseal on a larger Aurora home can run four to six hours. We quote the time estimate in writing with the price, so you know before we start. Call (720) 513-5159 to schedule.
Replace when the duct is degraded past structural integrity - torn flex liner, rusted metal with pinholes, or compressed insulation that can’t be restored. Repair when the material is sound and the failure is at a connection point or seam. We tell you which category you’re in after the camera inspection, not before. Our Free Second Opinion applies if you’ve been told to replace and want another assessment.
We stock collars, clamps, and hardware for Classic II, Classic II Plus, Beast, Beast Elite, aiR+, and BrushBeast lines. For discontinued OEM components, we source quality aftermarket equivalents from Guardsman and Abatement Technologies that meet the mechanical requirements. We never install a part without confirming fit in front of you.
You receive a Documented Photo Record of every duct run, before and after, as a standard deliverable on every CleanRun job. The photos are timestamped and show the specific joints we sealed. Haven Standard Clause 1 requires written documentation of scope and price; the photo record is the proof that scope was executed. If you don’t receive it, the job isn’t closed.
Written by Tomas Reyes, Owner & Lead Technician, CleanRun Air Duct Cleaning Aurora at CleanRun Air Duct Cleaning Aurora, serving Aurora and nearby areas.




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