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.
Rotobrush Air Duct Repair in San Antonio: What to Know First
We repair Rotobrush air duct systems across San Antonio as an independent Rotobrush service provider, with most diagnostics completed in a single visit and most repairs finished the same day parts are on hand. Honest numbers first: expect $220 to $640 for typical Rotobrush duct repair work here, depending on what failed and where. This page is for San Antonio homeowners who own or inherited a Rotobrush system and need someone who actually knows these machines inside and out. If you can describe what you’re seeing, we’ll give you a straight answer over the phone. Call (430) 233-7681 and ask for Marcus.
How Rotobrush Products Fail – and How We Fix Them
Rotobrush builds solid equipment, but twenty years of duct work across the Southwest has shown us exactly where these systems wear. Here’s what we see most often in San Antonio homes, by the model lines we service:
- Rotobrush aiR+ and BrushBeast series: drum brush feed jams. The brush cable on the aiR+ and BrushBeast units runs through a feed mechanism that binds when FOD (foreign object debris: drywall chunks, drywall screws, varmint nesting, toy fragments) accumulates in long vent runs common in Alamo Heights ranch-style homes. The brush seizes mid-run. We strip the feed assembly, clear the debris, and replace the cable if the wound steel has kinked or unraveled. A jammed drum brush is rarely a motor failure. It’s almost always debris in the vent path.
- Rotobrush V4 and VR series: vacuum motor burnout from clogged primary filters. These units pull hard, and when the primary filter (the one before the motor) gets packed with fine Texas Hill Country dust and construction powder, backpressure climbs until the motor overheats and scales. We replace the motor, install a fresh filter set, and pull the old filter packing out so it doesn’t end up inside your ducts. San Antonio’s dry, silty air loads these filters faster than installers from cooler climates ever expect.
- Rotobrush portable duct units: cracked hose cuffs at the furnace or air handler connection. The flexible hoses on the portable Rotobrush systems crack their rubber cuffs after repeated mounting at the supply plenum. You’ll hear a whine at the unit before you see the crack. We fit quality aftermarket cuffs that outlast the OEM rubber and check the hose clamps for proper crush. This is a $35 to $90 fix most of the time, not a new hose.
- Rotobrush compressor-driven tools: worn whip seals leaking air in the duct. The compressor-driven whips on the larger Rotobrush systems rely on small rubber seals that flatten with age. Air pressure drops, the whip stops flailing properly, and the job stalls or the agitation doesn’t reach the duct walls. We rebuild the whip with a seal kit and test pressure at the whip head before calling the job done.
- Rotobrush timer/control board failures on the aiR+ and BrushBeast. When the control board on an aiR+ or BrushBeast faults, the classic symptom is the brush feed running continuously with no stopping point, or the unit not starting the vacuum side at all. We test and replace the board with either the Rotobrush OEM part or a proven aftermarket board that matches the control protocol, and we explain which we’re using and why before we install it. No mystery parts.
Styles & brands we work with
Our Rotobrush Air Duct Repair Process
- 1
The call. A live person answers, 24/7. We ask what the system is doing (or not doing), what model you own, and when it last ran right. If you don’t know the model, we’ll walk you through finding the serial plate over the phone.
- 2
Same-visit diagnostic. A background-checked, photo-badged tech arrives with the name and photo you already received. We test the unit, not just the duct, because on a Rotobrush system the duct and the unit are one machine. “Tell me what you’re seeing, and I’ll tell you whether it’s worth fixing,” is how Marcus starts every job.
- 3
Parts decision. For motor, board, and seal failures, we lay out the OEM Rotobrush part price and the quality aftermarket option, with the honest trade-off. If the OEM part keeps your Rotobrush warranty intact, we say so plainly. If the aftermarket part is equal for less, we say that too.
- 4
The repair. We fix the system in place, then run a test cycle through the full duct run to verify the agitation and the vacuum pull are right. Not just that it powers on. That it moves air and agitates the way Rotobrush systems are built to.
- 5
Before-and-after photos. We show you what was fixed and what was removed. If the repair doesn’t hold, our 365-Day Done Right Promise means we come back at no charge.
- 6
Cleanup and paperwork. We leave the space clean, and we put the written guarantee in your hand, not in an email you’ll never open.
See the difference
Before
After
Before
After
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AfterWhat Rotobrush Air Duct Repair Costs in San Antonio
Here are the price ranges we actually quote in San Antonio, not teaser numbers that change when the van pulls up:
- Brush cable or hose cuff replacement: $85 to $190
- Whip seal rebuild: $55 to $120
- Control board, timer, or relay replacement: $220 to $480, depending on OEM vs. aftermarket
- Vacuum motor replacement: $310 to $640, depending on the motor spec and the unit’s age
- Diagnostic call (credited toward the repair): $79
What moves the price is the part itself and whether the unit has a documented service history. We write the price on paper before any work begins, and it doesn’t change unless you approve a change. Call (430) 233-7681 and we’ll give you an exact quote once we’ve seen the system.
Why San Antonio Homeowners Call Linden Air Duct San Antonio for Rotobrush Work
Most duct repair companies in San Antonio see a Rotobrush unit and treat it like any other blower. It isn’t. The agitation, the vacuum draw, the brush feed – they’re one integrated system, and you need someone who knows that the vacuum is starving when the brush jambs, not someone who replaces a motor and leaves a clogged vent path behind.
We’ve served San Antonio homeowners since 2004 as part of the Threshold Group family, and every Rotobrush job we take comes with the same standing commitments: a written price before work starts, a written guarantee on every repair, and a free second visit if the repair fails. Every tech is background-checked, identity-verified, and photo-badged under the Threshold Standard, and you get the tech’s name and photo before they ever knock on your door. We service Rotobrush, and we also repair Lennox, Trane, and Carrier systems, so if the problem crosses brands, we see the whole picture.
FAQs
No, not when the repair uses Rotobrush OEM parts or an equivalent aftermarket replacement that doesn’t alter the machine’s operating spec. We tell you before we install whether the part choice has any warranty impact on the unit itself. Repairs done by an independent contractor don’t void a Rotobrush warranty in most cases, but using the wrong part can.
Most common Rotobrush parts arrive in 2 to 5 business days from our parts network, and we handle the ordering so you’re not waiting on a backordered OEM part with no timeline. Common parts like hoses, cuffs, and seal kits we often have on the truck or in local stock the same week.
Most Rotobrush repairs are worth the money. A $120 seal rebuild is a fraction of a new system. But if the drum shell is cracked or the unit has suffered water damage, we’ll tell you honestly that replacement beats repair and show you the math. We don’t push repairs when the economics don’t make sense. Call (430) 233-7681 and we’ll give you our straight assessment.
We test the full system in place, not just the part we replaced, and we show you before-and-after photos of the work. The written guarantee covers the repair for 365 days, and if it doesn’t hold, we come back at no charge under our 365-Day Done Right Promise.
Yes. We work on Rotobrush systems regardless of who originally installed them, and we’ll give you the same written price and written guarantee we give on every job. You don’t need to be the original owner or have any paperwork from the original installation.
If your Rotobrush system isn’t running right, call (430) 233-7681 for a free estimate. A live person answers, and we’ll walk you through what you’re seeing before any truck rolls.
Written by Marcus Veale, Owner, Linden Air Duct San Antonio at Linden Air Duct San Antonio, serving San Antonio and nearby areas.