Whole-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.
Aprilaire Duct Repair & Sealing in Schertz: What to Know First
CleanRun provides independent Aprilaire duct repair and sealing in Schertz with written pricing delivered before any work starts, typically completing standard repairs in a single visit. Most Aprilaire systems we see in Schertz homes run between $340 and $890 for full duct sealing or flex duct repair, depending on whether the issue is isolated to a single run or involves the main trunk. We’re not affiliated with or authorized by Aprilaire; we are an independent Aprilaire service provider who documents every repair with before-and-after photos of the duct interior. This page is for Schertz homeowners who own Aprilaire equipment and need to know whether their ductwork problem is worth fixing, what it will actually cost, and how to verify the work was done correctly. Call (830) 402-5110 for a free written estimate.
How Aprilaire Products Fail - and How We Fix Them
- Aprilaire 800 steam humidifier series: The 800’s internal duct collar connections are prone to cracking where the polymer meets the galvanized takeoff, especially in Schertz’s hard-water corridor. We see this most in homes off FM 3009 and along Roy Richard Drive. Our fix is a metal-reinforced collar replacement with high-temp mastic sealant, not tape, because tape fails at the 140°F surface temps these units generate during steam cycles.
- Aprilaire 5000 electronic air cleaner: The 5000’s power head creates a slight negative pressure at the media seal gasket that, over three to five years, pulls the duct flange out of square. The symptom is a whistling noise that stops when you remove the media. We re-square the flange with a brake-formed patch and reset the gasket under proper torque so the seal holds under cycling load.
- Aprilaire 600 bypass humidifier: The 6-inch round bypass duct on the 600 is often flexed too tight during original install, kinking at the plenum elbow. In Schertz’s older subdivisions like The Crossvine, we’ve found original installs where the flex has collapsed internally, restricting airflow without visible external damage. We replace with properly supported flex or convert to hard pipe where clearance allows.
- Aprilaire 700 power humidifier: The 700’s fan-assisted pressure can expose existing duct leaks downstream that were never noticeable with passive airflow. Homeowners call us thinking the humidifier failed when it’s actually forcing conditioned air into the attic through a separated trunk seam. We pressure-test the full system, seal with mastic, and verify with a manometer reading.
- Aprilaire 1210/2210/3210 media air cleaners: The cabinet-style units in this series use a friction-fit door seal that compresses the surrounding ductwork every time it’s opened for filter changes. After five to seven years of quarterly changes, the sheet metal fatigues at the corners. We reinforce with a break-formed corner bracket and reseal with duct mastic rated for the system’s operating pressure.
Our Aprilaire Duct Repair & Sealing Process

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Camera inspection and written scope. We run a borescope through every accessible duct run and photograph what we find. The camera showed a 3-inch debris build-up at the first elbow on a job last month in Schertz’s Willow Grove area. You get the photos before we discuss any work.
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Pressure diagnostic. We seal the registers and test static pressure to locate leaks that aren’t visible. This tells us whether the problem is a single failed joint or systemic pressure loss.
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Parts decision with full disclosure. For Aprilaire-specific components, we source OEM when it affects warranty coverage or safety certification. For standard duct materials, we use quality aftermarket that meets or exceeds original spec, and we tell you which is which before you sign.
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Repair and seal. Flex duct gets replaced with properly supported runs, metal gets patched and sealed with mastic (never tape alone), and all connections are mechanically fastened before sealing.
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Post-repair verification. We re-test pressure, run the system through a full cycle, and photograph the completed work. The photo record is delivered as part of your job documentation.
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Written guarantee. Haven Standard Clause 1: your price was fixed before work started. The 365-Day Done Right Promise goes into effect when we leave.
Before
AfterWhat Aprilaire Duct Repair & Sealing Costs in Schertz
| Repair Type | Typical Range | What Moves the Price |
|---|---|---|
| Single flex duct run replacement | $340 - $520 | Length of run, attic access difficulty |
| Metal duct patch and mastic seal (1-2 joints) | $280 - $440 | Location (crawlspace vs. attic), corrosion extent |
| Main trunk seam sealing (full system) | $680 - $890 | System size, number of takeoffs, access |
| Aprilaire humidifier collar repair/replacement | $380 - $620 | OEM vs. reinforced aftermarket, steam vs. bypass type |
These are whole-system prices, not per-vent teaser rates. Every estimate is free, written, and fixed before work begins. Call (830) 402-5110 for an exact quote on your Aprilaire system.
Why Schertz Homeowners Call CleanRun Air Duct Cleaning Schertz for Aprilaire Work

Tomas Reyes and our crew have been working Schertz long enough to recognize the installation patterns that repeat in this market. We know which builders spec’d Aprilaire 600s with too-tight bypass ducts and which neighborhoods run 800-series steam humidifiers on hard water without treatment. That matters because the failure mode tells us where to look first.
Our technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. We also service Lennox, Trane, and Carrier systems, so when an Aprilaire component interacts with a mixed-brand HVAC setup, we understand both sides. Every job since 2013 has ended with a Documented Photo Record and a written price that was agreed to upfront. The before photo does the talking. I just bring the camera.
FAQs
No, duct repairs performed by a qualified technician do not void Aprilaire’s product warranty, provided the work does not alter the unit’s electrical or control components. We are an independent Aprilaire service provider, not an authorized dealer, so we document exactly what was touched and what was left factory-intact. If your Aprilaire unit is still under warranty, we flag any OEM-part requirements before starting work. Call (830) 402-5110 to discuss your specific model and warranty status.
The unit is likely at fault if it fails to power on, produces error codes, or shows physical damage to its housing or controls; the ductwork is likely the problem if you have weak airflow at registers, whistling noises, or humidity that never reaches the setpoint despite the unit running. We settle this with a pressure test and camera inspection, not guesswork. The photos show you which is which. Call (830) 402-5110 to schedule a diagnostic.
Repair makes sense when the duct damage is localized, the Aprilaire unit itself is functioning correctly, and the repair cost is under 40% of a full replacement quote. We replace instead when we find systemic corrosion, asbestos-containing materials, or ductwork that was incorrectly sized from installation. We give you both numbers in writing so you can decide. Call (830) 402-5110 for a free second opinion on any estimate you’ve already received.
Most standard repairs are completed in two to four hours of on-site work. A single flex duct replacement or humidifier collar repair typically finishes in one visit. Full trunk sealing or multiple-run replacement may require a return visit if we discover access limitations after opening the system. We tell you the expected duration in your written scope before work starts. Call (830) 402-5110 to schedule.
Yes, we stock common Aprilaire duct connection components and can source OEM humidifier collars, gaskets, and cabinet hardware within 24 to 48 hours for less common items. We also keep quality aftermarket equivalents on hand for repairs where OEM is not warranty-critical. We specify which part we’re using and why before any work begins. Call (830) 402-5110 to confirm availability for your model.
Written by Tomas Reyes, Owner & Lead Technician, CleanRun Air Duct Cleaning Schertz at CleanRun Air Duct Cleaning Schertz, serving Schertz and nearby areas.




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