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.
Honeywell Vent Sanitizing: The Leander Owner’s Guide
We stock and install Honeywell-compatible vent sanitizing systems for Leander homes, with typical installed pricing from $340 to $580 depending on duct run count and plenum access. Most Honeywell UV100E, UV2400U, and RUVLAMP1/C replacement lamp and catalyst kits are available same-day because we carry the common series on our trucks. Leander homeowners usually discover the system has failed when they notice the blue indicator light is out on their air handler, or when spring cedar pollen season hits and the house smells like the attic despite the fan running.
Which Honeywell Models This Applies To
Honeywell’s vent sanitizing lineup breaks into three series we see regularly in Leander homes built after 2015. The UV100E series mounts in the plenum (the main distribution box above your furnace) and uses a 16-inch lamp with a 5/8-inch diameter base. The UV2400U is the higher-output version for systems over 3.5 tons, with a 24-inch lamp and a different mounting bracket spacing. The RUVLAMP1/C is the retrofit kit for existing ductwork, and this is where we see the most compatibility errors: the kit ships with a 120V ballast, but many Leander homes with newer variable-speed air handlers have 24V control circuits, requiring a separate transformer or the RUVLAMP1/C-24V variant.
To identify your part, check the label on the lamp itself, not just the housing. The part number is etched near the ceramic base. If the label is faded, measure lamp length and base diameter. We also stock quality aftermarket equivalents from Abatement Technologies and Guardsman that match Honeywell specs and carry the same 9,000-hour lamp life rating. CleanRun Air Duct Cleaning Leander is an independent service provider, not affiliated with Honeywell. We source OEM and equivalent parts based on what your system actually needs, not what box has the right logo.
Signs Your Honeywell Vent Sanitizing Is Failing

- The indicator light is dark or flickering. Honeywell ballasts include a small viewport LED that shows blue when the lamp is generating UV-C output. A dark light means the lamp has reached end-of-life or the ballast has failed. In Leander, we see lamps burn faster than the 12-month replacement interval because the hard water scale and construction dust in newer neighborhoods like Crystal Falls coat the quartz sleeve, trapping heat and degrading the cathode.
- You smell mildew or “attic air” when the blower cycles on. The UV-C lamp’s job is to break down biofilm on the evaporator coil and plenum walls. When output drops below 40 microwatts per square centimeter, microbial growth resumes. The smell is your first warning before visible mold appears.
- Increased allergy symptoms during cedar pollen season. A functioning sanitizing system doesn’t filter pollen, but it does prevent the pollen and dust from bonding with organic growth inside the duct run (the individual branch of ductwork serving a room). When the lamp fails, that combination creates the stuffy, irritated feeling Leander residents notice in February through April.
- The lamp is past 12 months old and has never been replaced. UV-C lamps degrade even when the visible light still appears blue. Output drops roughly 15% per month of operation. We photograph the sleeve and measure output with a UV meter during maintenance; if it reads under 50 microwatts, we flag it.
- Your energy bill climbed without thermostat changes. A fouled evaporator coil from failed sanitizing restricts airflow, forcing the blower motor to draw more amperage. We’ve measured 8-12% efficiency loss on systems in Leander’s Travisso and Bryson neighborhoods where the lamp had been dark for over a year.
Before
AfterReplacement Cost & What’s Included
For Leander homes, Honeywell vent sanitizing replacement runs $340 to $580 installed. The lower end covers a straightforward UV100E lamp swap with good plenum access. The upper end applies to RUVLAMP1/C retrofits where we need to cut an access panel, install a new mounting bracket, and verify negative-pressure extraction (suction that prevents duct leakage) before sealing the work.
Every job includes the lamp or kit, quartz sleeve inspection and cleaning, ballast output test, and a new gasket if the plenum panel was opened. We deliver a written price before any work starts, per Haven Standard Clause 1. The 365-Day Done Right Promise covers the installation and ballast function. The lamp itself carries the manufacturer’s 9,000-hour rated life. We document every step with before-and-after photos of the plenum interior, included as standard.
DIY or Call Us?

There’s a safe middle ground here. You can check the viewport light, note the part number from the lamp base, and verify your breaker hasn’t tripped. What you should not do is remove the lamp while power is active or touch the quartz sleeve with bare fingers. The oils degrade the glass and create hot spots that shatter the tube. The ballast also stores a capacitive charge that can deliver a serious shock even with the breaker off.
We carry Honeywell, Abatement Technologies, and Guardsman lamps on the truck, so the “do we have it” question is usually answered in one call. Show the photo first. Then talk about what comes next. If you want us to inspect before quoting, Tomas Reyes will pull the camera and show you what the inside of your plenum actually looks like. Call (737) 252-1285 for a written estimate.
FAQs
Expect 9,000 hours of operation, which translates to 12-14 months of continuous runtime. In Leander, actual life often runs shorter because cedar pollen and new-construction dust coat the quartz sleeve, causing the lamp to run hotter and degrading the cathode faster. We check sleeve condition and UV output during every service. Call (737) 252-1285 to schedule a measurement.
No. UV-C lamps are sealed units with a finite gas charge. Once the mercury amalgam is depleted, the lamp cannot be recharged. Ballasts can sometimes be replaced separately if the lamp tests good, but in practice we see both fail together after 18+ months. We test each component and quote only what needs replacement. Call (737) 252-1285 for a written diagnosis.
A straightforward lamp replacement takes 45-60 minutes, including output verification and photo documentation. A full RUVLAMP1/C retrofit with access panel cutting and sealing runs 2-3 hours. We schedule enough time that the crew is never rushing through your home. Call (737) 252-1285 to book a morning or afternoon slot.
Yes. We carry UV100E, UV2400U, and RUVLAMP1/C lamps and ballasts, plus Abatement Technologies and Guardsman equivalents that match the same specs. For less common sizes, we source overnight from our Austin supplier. We confirm part availability when you call so there’s no surprise. Call (737) 252-1285 and we’ll verify your model against what we have rolling today.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning Leander at CleanRun Air Duct Cleaning Leander, serving Leander and nearby areas.




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