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 HVAC Cleaning in San Antonio: What to Know First
Rotobrush HVAC cleaning in San Antonio typically runs $385 to $690 for a full system cleaning on a standard single-unit home, and most jobs are completed in 4 to 6 hours. We’re an independent Rotobrush service provider, meaning we clean and maintain Rotobrush-branded duct cleaning and air handler systems, not that we’re affiliated with or authorized by the manufacturer. This page is for San Antonio homeowners and property managers who own Rotobrush equipment or have Rotobrush-branded ductwork in their homes and need it cleaned properly. Call (254) 347-3897 for a written quote before any work starts.
How Rotobrush Products Fail – and How We Fix Them
Rotobrush systems are workhorses, but they collect the same San Antonio dust, pollen, and construction debris as every other brand. Here’s what we actually see on service calls:
- Rotobrush aiR+ and the clogged brush head. The aiR+ line uses a rotary brush that spins inside the duct. In San Antonio’s dry, dusty climate, that brush head packs with fine caliche dust after about two to three years of regular use. Owners notice reduced suction and a burning smell from the motor. We pull the head, clear the packed debris, and inspect the brush bristles for uneven wear before reinstalling.
- Rotobrush R2 and filter saturation. The R2’s onboard HEPA-style filter traps what the brush kicks up. Problem is, San Antonio summers push systems to run almost nonstop, which saturates the filter faster than the manufacturer’s replacement schedule suggests. A saturated filter forces the motor to work harder and cuts cleaning performance. We check filter condition on every job and tell you the honest remaining life before recommending a swap.
- Rotobrush Viper and the kinked hose syndrome. The Viper’s flexible hose gets stored in garages and truck beds. In San Antonio heat, that hose softens and kinks, especially near the connection points. A kinked hose drops suction dramatically, and owners can’t figure out why the unit feels weak. We inspect the hose path first, replace kinked sections with OEM-spec hose when needed, and test suction before touching the ducts.
- Rotobrush air handler coil buildup. Rotobrush-branded air handlers, like most equipment in San Antonio, develop a crust on the evaporator coil from our hard water and constant humidity swings. That crust insulates the coil and cuts heat transfer. We use coil-safe cleaners and a low-pressure rinse, never a pressure washer, because high pressure bends the fins and voids equipment warranties.
- Rotobrush blower wheel imbalance. The blower wheel on Rotobrush air handlers collects a fine layer of dust that throws the wheel out of balance. You’ll hear it as a low-frequency vibration that gets worse at higher speeds. We remove the blower assembly, hand-clean each blade, and rebalance the wheel before reinstallation. Skipping this step is how a $400 cleaning turns into a $1,200 blower motor replacement.
Styles & brands we work with




Our Rotobrush HVAC Cleaning Process
Here’s what a Rotobrush cleaning from Cardinal Air Duct San Antonio looks like from first call to final invoice:
- 1
Call and schedule. You call (254) 347-3897, talk to a live person, and get a written price range before we ever dispatch a truck. No vague estimates.
- 2
We arrive on a trackable window. Your technician is background-checked and uniformed. You’ll know their name before they knock. They walk the system with you and confirm scope.
- 3
Diagnostics and parts decision. We inspect the Rotobrush brush head, hoses, filters, coil, and blower. If something needs replacing, we explain OEM versus quality aftermarket options, including warranty implications, and you approve the price in writing.
- 4
Negative-pressure cleaning. We connect Nikro HEPA extraction to create negative pressure, then run the Rotobrush brush through the ducts. Debris goes into the vacuum, not back into your living room. We clean the coil, blower, and air handler cabinet with the proper tools.
- 5
Before-and-after verification. You get photo documentation of your ducts and components before we started and after we finished. No taking our word for it.
- 6
Final walk-through and guarantee. We review what we found and what we did. Every repair carries a written guarantee and a free second visit if it fails within 365 days.
See the difference
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After
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AfterWhat Rotobrush HVAC Cleaning Costs in San Antonio
Most Rotobrush HVAC cleanings in San Antonio fall between $385 and $690 for a typical single-system home. A full air handler teardown with coil cleaning, blower cleaning, and cabinet sanitizing lands on the higher end of that range, especially if the coil needs a heavy descaling treatment. Here’s the honest breakdown:
- Duct-only brush cleaning: $285 – $420 depending on duct count and accessibility
- Full system (ducts, coil, blower, air handler): $385 – $690 depending on system size and coil condition
- Heavy coil or heat exchanger cleaning add-on: $75 – $150 if significant scale or pet-hair buildup is present
What moves the price is access. Crawlspace units, attic air handlers with tight clearances, and systems that haven’t been cleaned in five or more years take longer. We hand you a written price before we touch a single duct, and that price doesn’t change at the door. Call (254) 347-3897 for an exact quote.
Why San Antonio Homeowners Call Cardinal Air Duct San Antonio for Rotobrush Work
Omar Haddad, our owner, spent years pulling contaminated duct systems apart and putting clean ones back together before bringing Cardinal Air Duct to San Antonio. He and the crew know Rotobrush equipment from the brush head to the blower wheel, and they also service Lennox, Trane, and Carrier systems, so you’re not calling a one-brand shop. Every job is backed by our 365-Day Done Right Promise: if the work isn’t right within a full year, we return and correct it at no charge. You get before-and-after photos, a written price before work begins, and a live arrival window you can track from your phone. That’s The Relay Standard, and it applies to every Rotobrush cleaning we do in San Antonio, no exceptions. Clean ducts, straight answers, real price – that’s the whole pitch.
FAQs
Yes. We use manufacturer-compatible cleaning methods and parts on Rotobrush equipment, and we never use high-pressure washdowns or chemicals that would void an equipment warranty. If a replacement part is needed, we walk you through OEM versus aftermarket options and get your written approval before ordering anything.
Most Rotobrush cleanings are scheduled within a few business days, and we give you a live arrival window you can track. A real person answers our phone, so you’ll have a date and written price range before you hang up.
We do both. If a brush head, hose, filter, or blower component is worn past the point of cleaning, we quote the replacement with the OEM option and a quality aftermarket alternative where one exists, and you decide before any work proceeds.
If the air handler motor and coil are still in good shape, a full cleaning for under $700 almost always makes more sense than replacing a system that costs several thousand. We’ll tell you straight if we find something that makes cleaning a bad investment, and we’ll show you why with photos.
You’ll get before-and-after photo documentation of your ducts, coil, and blower from your technician, plus a written summary of what came out of the system. If you’re not satisfied with the result within 365 days, we come back and make it right at no charge.
Written by Omar Haddad, Owner, Cardinal Air Duct San Antonio at Cardinal Air Duct San Antonio, serving San Antonio and nearby areas.