Dryer vent cleaning
Whole-home duct 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 Dryer Vent Cleaning in San Antonio: What to Know First
Rotobrush dryer vent cleaning in San Antonio typically runs $180 to $375 for a standard single-story vent run, and we complete most jobs the same visit. We’re an independent Rotobrush service provider, not a manufacturer-authorized shop, which means we can use the right Rotobrush tooling without being locked into OEM pricing on every part. This page is for homeowners in San Antonio who own a Rotobrush system or have Rotobrush components in their dryer vent setup and want straight answers about what cleaning actually involves and what it costs. Call (430) 233-7681 and Marcus or one of the crew will walk you through what you’re seeing.
How Rotobrush Products Fail – and How We Fix Them
Rotobrush builds solid equipment, but every line has its known weak points. Here’s what we see on San Antonio job sites, in order of frequency:
- Rotobrush aiR+ and RD-series vent caps collect lint at the damper pivot. The spring-loaded backdraft damper on these caps is the first thing to gum up in humid air, and San Antonio’s humidity plus dryer heat bakes lint onto the pivot pin like lacquer. The damper sticks open, birds and humidity get in, and the drying cycle stretches out. We pull the cap, solvent-clean the pivot, and if the spring’s lost tension, we replace it with an aftermarket stainless spring that outlasts the OEM part by a couple of seasons.
- Flex transition hose detaches at the Rotobrush wall collar after seasonal settling. San Antonio’s clay soil shifts with rain and drought, and older ranch-style homes near Alamo Heights move enough to pull a rigid-mounted collar loose. When the flex hose slips, lint blows into the wall cavity and the vent reads clear at the dryer but partially blocked at the crown. We re-seat the collar with a foil-backed mastic seal and add a support strap so it doesn’t walk again.
- The Rotobrush HX-series booster fans build a lint ring on the impeller hub. Booster fans are popular in Stone Oak two-story homes where vents run 35 feet or more. The impeller on these units sits in the airstream, and lint wraps the hub until the fan vibrates or the motor overheats. We open the housing, scrape the hub clean, and inspect motor windings before reassembly. If the impeller’s chipped from debris, we replace it rather than letting imbalance shorten the motor.
- Inner duct liner delaminates on older Rotobrush flex runs. If your vent’s more than 12 or 15 years old and uses the older foil-and-plastic Rotobrush flex, the plastic liner can separate and flap in the airflow. That flapping noise is a sign the liner is shredding, and pieces of it pack into the exhaust cap screen. We run a camera down the line, confirm the delamination, and replace the flex with rigid smooth-wall or modern Rotobrush-compatible flex, whichever the run length and code allow.
- Lint bypasses the Rotobrush Dryerbox and packs the wall cavity. The Dryerbox is a recessed wall box that lets the dryer sit closer to the wall, but the knock-out port on older units doesn’t always align with the vent hole when the box is set by a production framer. Lint escapes the gap and accumulates behind the dryer. We pull the dryer, seal the gap with high-temp foil tape or a sheet-metal patch, and vacuum the wall cavity before reconnecting.
Every one of these is fixable the same day. We bring all the common Rotobrush-compatible parts on the truck, because nobody wants to wait a week for a damper spring.
Styles & brands we work with




Our Rotobrush Dryer Vent Cleaning Process
Here’s how a Rotobrush dryer vent cleaning job goes at Linden Air Duct San Antonio, from your first call to the final test:
- 1
Call and describe what’s happening. You tell us the dryer’s taking two cycles, or there’s a burning smell, or the vent flap’s stuck. As Marcus puts it, “Tell me what you’re seeing, and I’ll tell you whether it’s worth fixing.” If it sounds minor, we’ll say so before anyone rolls a truck.
- 2
We inspect the full vent run with a camera. We look at the dryer connection, the flex transition, the wall penetration, and the exterior cap. The camera shows us exactly where the restriction is, so we’re not guessing or selling you work you don’t need.
- 3
We run negative-pressure extraction with Rotobrush brushes. We seal the vent at the dryer side and pull a negative draft through the line while running the brush head down the full length. This captures lint at the collection point inside, not outside on the ground. It’s the same principle Rotobrush built their reputation on, and we execute it the same way every time.
- 4
We make the parts decision in front of you. If a damper spring is shot or the flex is delaminated, we show you the old part and give you a written price for OEM versus quality aftermarket. You decide. There’s no markup shell game.
- 5
We re-test airflow at the cap and at the dryer. We measure static pressure and airflow before we pack up. The vent doesn’t just look clean; it has to pull the right numbers.
- 6
You get a written report and the 365-Day Done Right Promise. If the vent clogs prematurely or the work isn’t right within 365 days, we come back and make it right. No argument, no fine print.
See the difference
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After
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AfterWhat Rotobrush Dryer Vent Cleaning Costs in San Antonio
Here’s what San Antonio homeowners can expect to pay for Rotobrush dryer vent work, based on the jobs we see most often:
- Standard cleaning, single-story, vent under 15 feet: $180 to $245
- Two-story or vent over 25 feet: $260 to $340
- Cleaning plus cap or damper replacement: $225 to $375 depending on the cap type
- Cleaning plus booster fan service (HX-series): $310 to $430 if the impeller needs replacement
- Full flex replacement for delaminated liner: $340 to $525 including materials and cleaning
What moves the price is access, run length, and whether parts are worn. We put the price in writing before we start, every time, and it doesn’t change at the invoice. Call (430) 233-7681 for a free estimate, and we’ll give you a number you can actually budget around.
Why San Antonio Homeowners Call Linden Air Duct San Antonio for Rotobrush Work
We’ve been serving San Antonio as part of the Threshold Group family since 2004, and the thing that separates us from a random van is how we handle trust. Every technician is background-checked, identity-verified, and photo-badged. Before we arrive, you get the tech’s name and photo, and at the door, you see the same face on the ID badge. No surprises, no mystery subcontractors. Our techs know Rotobrush equipment because we run Rotobrush and Nikro machines on our own jobs, and we also service ducts paired with Lennox, Trane, and Carrier systems, so we understand how the vent interacts with the whole HVAC picture. Every repair gets a written guarantee, and if a covered repair fails, we come back free. That’s been our standing policy since Marcus Veale started running the crew in San Antonio.
FAQs
No. Regular dryer vent cleaning is a maintenance activity explicitly covered by Rotobrush’s warranty terms; using aftermarket replacement parts like springs or dampers may void coverage on that specific replacement part but not on the original Rotobrush equipment. We document everything we do, and if you ever need to claim warranty work, you’ll have a paper trail showing the vent was properly maintained.
How do I know if my Rotobrush vent actually needs cleaning or if something else is wrong?
If your dryer is taking longer than 45 minutes to dry a normal load, the outside vent flap isn’t opening during a cycle, or you smell a musty or burning odor when the dryer runs, the vent is likely restricted. Marcus’s rule is simple: tell him what you’re seeing, and he’ll tell you whether it’s worth a service call. If the symptom sounds mild and avoidable, he’ll tell you that too.
Can you clean a Rotobrush vent from the outside without moving the dryer?
Sometimes, but we usually need access to both ends. The Rotobrush negative-pressure extraction works best when we seal the dryer side and pull from the outside, but if a lint ring has built up on the dryer-side connection or the transition hose is delaminated, we need to move the dryer to fix those. We’ll tell you on the phone whether we can work from the exterior only for your specific setup.
How long does Rotobrush dryer vent cleaning take?
Most standard Rotobrush dryer vent cleanings take 45 to 90 minutes from door to door, depending on run length and whether we’re replacing a cap or damper. We book a two-hour window so we never rush the inspection or the test.
Do you handle Rotobrush equipment installed in older San Antonio homes?
Yes. We see plenty of older Rotobrush flex runs in Alamo Heights and Monte Vista homes, and those are the jobs where camera inspection matters most. Older Rotobrush-compatible flex is the first thing to delaminate or clog with baked-on lint, and we carry the tools and replacement parts to bring those systems back to full function.
Call (430) 233-7681 for a free estimate on Rotobrush dryer vent cleaning in San Antonio. We answer live, 24 hours a day, and we’ll tell you exactly what we’d do and what it would cost before you commit to anything.
Written by Marcus Veale, Owner, Linden Air Duct San Antonio at Linden Air Duct San Antonio, serving San Antonio and nearby areas.