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 Coil Cleaning: The Sandy Springs Owner’s Guide
If your Rotobrush system’s coil cleaning function has failed or is underperforming, we stock Rotobrush-compatible coil cleaning parts and install them in Sandy Springs, typically for $145 to $260 installed depending on your model and whether you need just the cleaning head or the full assembly. Most owners discover the problem when the brush stalls mid-cycle, leaves visible residue behind, or the coil fins look bent after a pass. We keep common Rotobrush coil cleaning components on the truck, so a single visit usually gets you back to clean coils the same day.
What you’re holding is likely a well-used Rotobrush product that’s finally hit a wear point. Coil cleaning heads go through repeated contact with aluminum fins, and in Sandy Springs the summer humidity adds a layer of grime that accelerates wear on the bristles and the drive coupling. The good news: this is one of the more straightforward Rotobrush parts to replace, and Roy Castellanos and our crew have matched enough of these to know exactly which version fits which machine.
Key Takeaways:
- Installed Rotobrush coil cleaning replacement in Sandy Springs runs $145 to $260 on average.
- We stock common Rotobrush coil cleaning heads and couplings on the truck.
- You get a written price before we touch the unit, and the work is covered by the 365-Day Done Right Promise.
- Hollis Air Duct Sandy Springs is an independent service provider, not affiliated with Rotobrush.
Which Rotobrush Models This Applies To
Rotobrush built several coil cleaning configurations across their product line, and the compatibility gotcha is this: a coil cleaning head from an older Airology-era unit will not seat correctly on the newer brush cartridges without an adapter collar. If you’re looking at the part label, check for the “CC” prefix on Rotobrush coil cleaning assemblies. The most common units we see in Sandy Springs homes are the Rotobrush aiR+ and the earlier R500 series, and the coil cleaning head for the aiR+ is noticeably shorter than the R500 version, roughly 2.5 inches versus 3.25 inches of working surface.
For most owners, the OEM Rotobrush coil cleaning head is the right call because the bristle density and stiffness are matched to the machine’s RPM. Aftermarket equivalents exist and we have installed them when an OEM part is backordered, but we tell Sandy Springs customers straight: if the aftermarket head runs slightly out of true, it will streak the coils instead of cleaning them. We stock OEM Rotobrush coil cleaning heads and also carry parts for Lennox, Trane, and Carrier systems for when the job expands beyond the Rotobrush unit itself.
Styles & brands we work with




Signs Your Rotobrush Coil Cleaning Is Failing
- Bristles flattening or splaying outward. This is the most common failure we see. The nylon bristles lose their memory after repeated passes over aluminum fins, and once they splay, the head skims the surface instead of penetrating between fins. Replacement is the fix; brushing harder just bends fins.
- Drive coupling slipping. If the cleaning head chatters or spins intermittently, the coupling between the motor shaft and the cleaning head is worn. In sandy Georgia soil, fine grit works its way into the coupling and accelerates the wear. We see this regularly on Rotobrush units in Sandy Springs homes near the river, where silt dust is heavier.
- Uneven cleaning pattern. You’ll see clean streaks alternating with dirty streaks on the coil face. That means the head is not seated square, either from a bent shaft or a worn arbor. Running it longer does not fix the pattern; it just deepens the unevenness.
- More resistance mid-pass than you remember. A healthy Rotobrush coil cleaning head moves across fins with steady, moderate resistance. If you’re fighting the tool or the motor sounds like it’s loading up, the bristles are binding instead of flexing. Continuing to force it risks bending coil fins, which becomes a much more expensive repair.
- Debris left behind after cleaning. The number one reason people call us. If the head is not making full contact, you get a coil that looks better but still carries a layer of insulating grime. In a Sandy Springs summer, that layer is often 1/8 inch thick on neglected coils, and the Rotobrush unit is working but not winning.
See the difference
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After
Before
After
Before
AfterReplacement Cost & What’s Included
In Sandy Springs, you’re looking at $145 to $260 for a Rotobrush coil cleaning replacement, installed. The spread exists because the cleaning head alone is cheaper than the full assembly with the drive coupling and arbor. If your head is worn but the coupling is tight and the shaft spins true, you’re at the low end. If we have to pull the motor to replace a stripped coupling or straighten the arbor, you’re at the high end.
What you get for that price: the part, the labor, and the calibration pass to confirm the head runs true against the coil. No per-fitting add-ons, no trip charge, no surprise line items. We write the price down before any work starts, and it does not move at the door. The work is covered by the 365-Day Done Right Promise: if that coil cleaning head fails within a year, we come back and make it right at no charge, including a free second visit. That is not a verbal guarantee; it’s on the paperwork.
If your Rotobrush unit needs more than the coil cleaning part, we will tell you before we do anything else. Roy’s rule is simple: no moving targets, no “discovered problems” once the tool is open. You’ll know exactly what you’re paying for and why.
DIY or Call Us?
The coil cleaning head on a Rotobrush unit is not a high-tension part like a garage door spring or an electrical component, so the safety risk of handling it is low. What the DIY route gets wrong is alignment. The head has to seat square on the arbor, and if it runs even slightly out of true you will streak your coils, waste a day, and possibly bend fins. Bent fins on an evaporator coil are a $400 to $800 repair in this market, and no Rotobrush coil cleaning head will fix that.
What you can safely check on your own: the label on the part, the model number on the unit, and whether the bristles are visibly flattened. If the head wobbles when you hand-spin it, stop there and call us. We carry Rotobrush coil cleaning parts on the truck, and we’re in Sandy Springs neighborhoods every week. Call (229) 489-7780 and we’ll get yours matched and swapped. Clean ducts, straight answers – that’s the whole job.
FAQs
In Sandy Springs, with our summer humidity and the pollen load from the tree canopy, expect a Rotobrush coil cleaning head to last two to four years under regular use before the bristles lose their stiffness and start streaking instead of cleaning. Coils that get cleaned monthly wear faster than coils cleaned seasonally, but the bigger factor locally is fine grit. Homes near Riverside Drive and the Chattahoochee see more silt in the air, and that grit settles into the coils and chews through bristles quicker. If your head is three years old and leaves residue, it’s done. Call (229) 489-7780 and we’ll get a new one on it.
A worn coil cleaning head generally cannot be repaired. The bristles are formed as a single unit around the arbor core, and once they lose memory or splay, there’s no reliable way to restore them. The drive coupling and arbor are replaceable separately if the head itself is still serviceable. We’ll tell you which is actually needed when we look at the unit, and whatever we quote is what the job costs.
Most Rotobrush coil cleaning head replacements take 45 to 60 minutes on site. That includes pulling the old head, seating the new one, checking it spins true, and running a short calibration pass on the coil. If the coupling or arbor also needs work, you’re looking at an additional 30 minutes. Either way, it is a single visit, and we leave the site clean when we go.
We stock common Rotobrush coil cleaning heads for the aiR+ and R500 series on the truck, along with replacement couplings and arbors. If you have an older Rotobrush model or an unusual configuration, we can source the part quickly through our supplier network and schedule the install once it’s in hand. Call (229) 489-7780 with your model number and we’ll tell you whether we can handle it same-day or need to order it in.
Written by Roy Castellanos, Owner, Hollis Air Duct Sandy Springs at Hollis Air Duct Sandy Springs, serving Sandy Springs and nearby areas.