Rotobrush Duct Sealing Nationwide

Rotobrush Duct Sealing in Henderson: What to Know First

Rotobrush duct sealing in Henderson typically runs $450 to $1,400 depending on how many leaks we find and where they are. We’re an independent Rotobrush service provider, not a factory-authorized shop, which means we answer to you, not a manufacturer’s warranty department. Most jobs take one visit, four to six hours, and we hand you a written price before anything comes off the wall. If you own a Rotobrush system and your ducts are leaking, call (775) 383-5847 and we’ll walk you through what to expect.

Call (775) 383-5847

How Rotobrush Products Fail – and How We Fix Them

We’ve worked on Rotobrush systems across Henderson long enough to know their habits. Here are the failure patterns we actually see, not the ones from a brochure:

• Rotobrush R-5000 and R-6000 series: collar separation at the plenum. The foil-backed tape Rotobrush used on early R-series installations breaks down in Henderson’s dry heat and hard water air. The collar pulls loose where the flexible duct meets the sheet metal plenum. Duct sealing mastic applied properly, not another strip of tape, is the fix. Tape over dead tape is how you end up calling us twice.
• Rotobrush R-8000 series: poly liner delamination. The inner liner on some R-8000 installs from the mid-2010s separates from the insulation jacket after years of attic heat cycles above 130 degrees in July. You’ll feel a slight bulge near a register, and you’ll notice dust building up faster than it used to. We seal the liner with a water-based mastic rated for flex duct interiors. That repair is faster and cheaper than a duct replacement.
• Rotobrush brush-line duct board: corner joint failure in older ranch homes. In Henderson’s older Green Valley ranch-style houses, we regularly see duct board corners pop under thermal expansion. The fiberglass board expands and contracts at a different rate than the metal collars. The result is a small gap at every corner. We seal those joints with a UL 181-rated mastic, which flexes with the board and doesn’t crack.
• Rotobrush air handler connections: the gap nobody sees until the test. Most Henderson homes with Rotobrush systems have the air handler in the garage. The return-side connection to the blower cabinet fails quietly. You won’t hear it. You’ll just run a higher power bill and get a slight garage smell through the vents. We test static pressure on every Rotobrush sealing job and seal that connection with fiberglass mesh tape and mastic, three coats.
• Aftermarket tape and sealant residue from prior repairs. A lot of Henderson Rotobrush owners bought homes where a previous owner or a handyman “fixed” a leak with duct tape or foam. That stuff dries, shrinks, and fails within two seasons. We scrape it back to the substrate before we apply anything, because mastic over flaking tape is just a slower leak.

Roy Castellanos runs a methodical inspection before any sealing starts. His rule: a blower pushing dirty air through a system that hasn’t been mapped first is just moving the problem around. We map the whole run, then seal, then test.

Our Rotobrush Duct Sealing Process

Here’s what a Rotobrush duct sealing job looks like when Hollis Air Duct Henderson shows up:

1. 1
   Walk and listen. We go register by register and map the full duct run. We listen for whistles at boots, check collars at the plenum, and look at the air handler cabinet. You get a written map of what we found.
2. 2
   Pricing in writing. Before we touch anything, you get the dollar number. The price does not move at the door. No per-vent upcharges, no discovery fees.
3. 3
   Parts decision. If a part needs replacing, we lay out the OEM option and the quality aftermarket option side by side. OEM costs more and matches the factory warranty exactly. A UL 181-rated aftermarket sealant often does the same job for less. We never use hardware-store tape as a final fix.
4. 4
   Prep the surface. We scrape, clean, and remove failed sealant. Mastic bonds to the substrate, not to dust. Skipping this step is how a five-year repair becomes an eighteen-month repair.
5. 5
   Seal and reinforce. We apply mastic with fiberglass mesh at stress points, three coats where movement happens. Corners, collars, and air handler connections get the most attention.
6. 6
   Test before we leave. We run the system and check static pressure and register airflow against the map. If numbers don’t line up, we find the leak before we pack the van.

Every job is covered by the 365-Day Done Right Promise. If the seal fails within a year, we come back at no charge. Free second visit, included, not negotiated.

What Rotobrush Duct Sealing Costs in Henderson

Here are real ranges for Henderson Rotobrush homes, based on what we typically see:

• Single leak at a plenum collar or boot: $180 to $340. One visit, one to two hours.
• Three to five leaks, typical ranch home: $400 to $700. Includes full testing and a written map.
• Full-system Rotobrush duct sealing, two-story or long runs: $800 to $1,400. Every joint, every collar, every boot, and the air handler connection, plus final testing.

What moves the price: attic access and duct length (a two-story Henderson home off Horizon Ridge runs longer than a single-story ranch), how much old sealant we have to remove, and whether the poly liner needs interior repair. There’s no per-vent pricing here. One flat price per system, agreed before work starts. Call (775) 383-5847 for a free estimate, and you’ll get an actual number, not a range read from a script.

Why Henderson Homeowners Call Hollis Air Duct Henderson for Rotobrush Work

We’re part of the Garrison Partners family, and we’ve been doing this since 2004. The Garrison Standard means three things on every job: arrive inside the quoted window, price in writing before work starts, and leave the site cleaner than we found it. Background-checked, uniformed technicians on every job, and phones answered by a live person 24/7. No voicemail loops, no waiting until Monday. We carry Rotobrush equipment alongside Nikro, Honeywell, Aprilaire, Abatement Technologies, and Guardsman, so if your sealing job turns up a filtration issue, we fix it on the spot. And if your Rotobrush system shares ductwork with a Lennox, Trane, or Carrier handler, we work on those too. One call, one crew, one written price.

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