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 Duct Sealing & Repair: The Jacksonville Owner’s Guide
If your Rotobrush duct sealing system has a failed gasket, cracked housing, or worn brush assembly, we stock and install the parts to get it moving air again. Installed repair work on Rotobrush duct sealing equipment in Jacksonville typically runs $145 to $380 depending on which component failed, and most jobs are finished the same visit. You’ll usually know something’s wrong when the system starts leaving visible debris behind after a pass, or the vacuum seal won’t hold pressure like it did when the unit was new.
We’re an independent Jacksonville duct cleaning and repair company, not a Rotobrush dealer or affiliate. That matters because we can be straight with you about whether an OEM part is worth the premium or whether a quality aftermarket replacement will do the job for less. Marcus Veale and our crew have pulled apart enough Rotobrush units in Jacksonville homes to know exactly what wears first and what’s actually causing the problem. Tell me what you’re seeing and I’ll tell you if it’s worth fixing.
Which Rotobrush Models This Applies To
The Rotobrush line most homeowners see in Jacksonville is the Air-Sweep series, but we also work on the older RB Series units and the BRM brush-and-vacuum combos that predate them. The sealing components that fail most often, gaskets, vacuum collars, and brush head seals, are common across most Rotobrush models from the last 15 years, but they are not universal. The mounting collar diameter changed between the RB Series and Air-Sweep generations, and a gasket for one will not seat cleanly on the other.
Here’s the practical way to identify what you need: look at the metal ID plate on the main housing. It lists the model number and series, usually something like “Air-Sweep 4000” or “RB 3000.” Take a photo of that plate before you call us or any supplier. If the plate is worn smooth or missing, measure the outside diameter of the vacuum collar with a tape measure. The older RB Series uses a 10-inch collar; most Air-Sweep units use a 12-inch collar. Getting this wrong means a gasket that pulls loose mid-job, which is exactly what a failing seal already does. We keep both OEM Rotobrush gaskets and US-made aftermarket equivalents on the truck, and we’ll tell you the price difference before we order anything.
Styles & brands we work with




Signs Your Rotobrush Duct Sealing & Repair Is Failing
- Debris left behind after a cleaning pass. The brush agitates the duct wall, and the vacuum should pull loosened material out immediately. If you’re finding dust and lint in the duct after the pass, the seal between the vacuum collar and the duct opening is no longer holding negative pressure. Worn or torn gaskets are the usual cause.
- A sudden drop in suction at the vacuum canister. The Rotobrush system relies on a continuous sealed pathway from brush head to canister. A cracked housing, a failed brush head seal, or a loose clamp anywhere along that path lets air in and kills suction. You’ll hear the motor working, but the pull at the brush head feels weak.
- The brush assembly wobbles or vibrates unusually. Rotobrush brush heads ride on a bearing assembly inside the sealed housing. When that bearing wears, you get side-to-side play, which tears the surrounding gasket and eventually scores the inside of the housing. Ignore the vibration long enough and you’re replacing the housing, not just the bearing and seal.
- Visible cracks or brittleness in the rubber gaskets and collars. Florida heat and humidity are hard on rubber. Gaskets that live in a Jacksonville garage or van through a full summer turn hard and cracked faster than units stored in climate control. Rotten rubber will not seal, period.
- The canister won’t achieve full vacuum during setup. Before a cleaning, the tech seals the system and checks the vacuum gauge. If the needle won’t reach the expected range even after sealing, something in the sealing path is compromised. That’s the test that catches a failing part before it ruins a job.
Most of these failures start with the gaskets and collars, which are the cheapest parts on the unit and the ones Jacksonville’s humidity punishes hardest. Replacing them at the first sign of cracking is the difference between a $145 repair and a $380 housing replacement.
Replacement Cost & What’s Included
Here’s what Rotobrush duct sealing and repair work costs in Jacksonville, installed:
- Gasket and collar replacement (most common): $145 to $220, depending on model and whether it’s one collar or the full set
- Brush head seal and bearing assembly: $180 to $290, including new seals, bearing, and labor
- Vacuum housing repair or replacement: $220 to $380, depending on whether the housing can be saved or needs a new assembly
- Full sealing system overhaul (all gaskets, collars, seals, clamps): $300 to $380
Every quote we give includes the part, the labor to install it, and the time to pressure-test the system before we call the job done. You get the price in writing before any work starts, and every repair is covered by our written guarantee. If the repair fails within 365 days, we come back and fix it at no charge. That’s the 365-Day Done Right Promise, and it applies to every Rotobrush repair we do in Jacksonville.
See the difference
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After
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After
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AfterDIY or Call Us?
There are a few things an owner can safely check before calling us. Look at the gaskets with a flashlight. If you see cracks, flat spots, or rubber that feels stiff instead of springy, the seals are done. Check that the vacuum collar clamps are tight and that no hose has pulled loose from its fitting. Those are visual checks that cost you nothing.
Here’s where DIY goes wrong: the brush head bearing is under constant tension from the drive shaft, and pulling the assembly apart without the right tools scores the housing or breaks the retaining clip. Electrical testing on the vacuum motor is another place we’d tell you to stop. A Rotobrush unit is a commercial-grade tool, and a botched repair on the sealing system means you’re breathing whatever the system fails to capture. For anything beyond a visual check, call (904) 329-7854 and we’ll give you a straight answer on whether it’s worth fixing before we ever send a truck.
FAQs
The gaskets and collars on a Rotobrush unit typically last 3 to 5 years in Jacksonville, where garage and van heat plus humidity age rubber faster than in cooler climates. If the unit lives in a climate-controlled space, expect the longer end of that range. Seals that see heavy weekly use wear out closer to 3 years.
No, a cracked gasket or collar needs replacement, not repair. Rubber that has hardened or split will not reseal, and any adhesive or patching compound you apply will fail under vacuum pressure. Call (904) 329-7854 and we’ll tell you exactly which seals need replacing and what it will cost.
Most gasket and collar replacements take 45 to 90 minutes once we’re on site. A full sealing system overhaul with housing work can take up to 2 hours. We pressure-test the system before we leave, so you’ll know the repair holds.
We keep the most common Rotobrush gaskets, collars, brush head seals, and clamps on the truck for both the Air-Sweep and older RB Series units. If your model needs a part we don’t carry, we tell you the honest lead time and price before ordering. We also stock compatible parts for Lennox, Trane, and Carrier duct systems.
Call for a Straight Answer on Your Rotobrush Repair
If your Rotobrush unit is losing suction, leaving debris behind, or just not sealing like it used to, call (904) 329-7854. A live person answers, day or night, and we’ll tell you what the repair likely costs before we schedule anything. Written price before the work starts, written guarantee on the repair, and a tech whose name and photo you’ll have before we arrive. That’s how we’ve done it in Jacksonville since 2004.
Written by Marcus Veale, Owner, Linden Air Duct Jacksonville at Linden Air Duct Jacksonville, serving Jacksonville and nearby areas.