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.
Honeywell Vent Sanitizing: The Long Beach Owner’s Guide
If your Honeywell vent sanitizing system has stopped doing its job, here’s the straight answer: Hollis Air Duct Long Beach stocks Honeywell-compatible sanitizing components and installs them for a typical total of $280 – $520 depending on your model and how much of the sanitizing array needs replacing. Most jobs are done the same day we arrive, and the price is written down before we touch anything. You’ll usually know something’s off because the indicator light stays dark, the air smells stale again, or the unit runs but the sanitizing module never cycles.
We’re an independent service provider, not affiliated with Honeywell, but we’ve worked on their vent sanitizing equipment across Long Beach for years. It’s a niche product, and most owners don’t know anyone who actually understands it. That’s where we come in.
Which Honeywell Models This Applies To
Honeywell has released vent sanitizing technology under a few different names over the years, and the compatibility picture matters more here than with a standard filter swap. The parts are not universal. The most common units we see in Long Beach homes are the Honeywell UV2400 series and the Honeywell AirWatch sanitizing modules that integrate with whole-home duct systems. Each has a different mounting pattern, bulb spec, and ballast voltage.
Here’s the compatibility gotcha we run into constantly: a UV2400 lamp will not fit an AirWatch housing, even though both say “Honeywell” on the side. The bulb lengths differ by a full two inches, and the connector pin spacing is different. If you’re ordering a replacement yourself, check the model sticker on the housing, not the bulb. The sticker tells you the series and production year, and that’s what determines the correct part. We keep OEM Honeywell lamps in stock for both series, plus quality aftermarket bulbs from Guardsman that match the OEM specs exactly and typically run $35 – $60 less per lamp.
A second thing to know: in Long Beach’s coastal air, the mounting clips on Honeywell sanitizing modules corrode faster than the bulbs fail. We see it all the time in homes near Belmont Shore and Naples, where salt air gets into attics and works on the galvanized brackets. The lamp will still test fine, but the module vibrates loose and the sanitizer stops covering the duct surface it’s aimed at. That’s a $40 bracket replacement, not a $300 module replacement, and it’s the kind of thing that keeps a system alive for years longer than it would otherwise run.
Styles & brands we work with




Signs Your Honeywell Vent Sanitizing Is Failing
- The indicator light won’t come on. Most Honeywell sanitizing modules have a small LED that shows when the UV lamp is receiving power. A dead light usually means a failed ballast or a lamp that’s burned out past its ignition threshold. The ballast is the more expensive half of the system, and it fails more often than Honeywell’s documentation suggests.
- You smell the old mustiness creeping back. UV sanitizing kills mold, bacteria, and odor-causing organisms on duct surfaces. When the lamp degrades, the odor comes back gradually, usually within three to four weeks. By the time you notice it, the lamp has been dead for a while.
- The lamp cycles on and off erratically. This is almost always a failing ballast or a loose connection at the mounting pins. In Long Beach’s humidity, we see corroded pin contacts causing intermittent operation, especially on units installed in unconditioned attics.
- The bulb is visibly darkened or has white powder inside. UV lamps darken at the ends as they age. That’s normal after about 8,000 to 10,000 hours of operation. But if the bulb is dark across most of its length or the glass looks milky, the lamp has failed and it’s producing little to no sanitizing output.
- Your energy bill ticks up with no other explanation. A failing ballast draws more current as it degrades. It’s not a dramatic spike, but if you’ve ruled out everything else and the sanitizing module is older than three years, it’s worth checking.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
In Long Beach, here’s what you can expect to pay for Honeywell vent sanitizing work through Hollis Air Duct:
- UV lamp replacement (OEM Honeywell): $160 – $230 installed
- UV lamp replacement (Guardsman aftermarket, same specs): $120 – $170 installed
- Ballast replacement: $140 – $220 installed
- Full module replacement (lamp, ballast, housing): $280 – $520 installed
- Mounting bracket repair or replacement: $40 – $90 installed
The range depends on access. If your sanitizing module is in a tight attic crawl or behind a finished ceiling with no service hatch, it takes longer and costs more. If it’s in an accessible mechanical closet, we’re in and out quickly. Either way, the price is written down before any work starts, and it doesn’t move at the door. Every replacement carries our 365-Day Done Right Promise: if the lamp, ballast, or bracket fails within a year, we come back and make it right at no charge, including the second visit. Roy Castellanos and our Long Beach crew don’t sign off until the sanitizer is tested, the airflow is verified, and the work area is cleaned up.
DIY or Call Us?
Here’s the honest split. You can safely check the model sticker, look at the indicator light, and visually inspect the bulb for darkening or powder. That’s about it. The danger with Honeywell vent sanitizing equipment is electrical, not mechanical. UV sanitizing modules run on a ballast that steps voltage up significantly, and the lamp emits UV-C light that will damage your eyes if you look at it while it’s powered. We don’t recommend opening the housing or testing the ballast with a multimeter unless you understand AC voltage and UV-C safety protocols.
If you’ve confirmed the lamp is dark, or if you’ve got an electrical issue, call us at (562) 548-7365. We bring the correct bulb, ballast, or bracket based on your model number, so there’s no second trip. The swap itself typically takes under an hour. You’ll get a written price before we start, and the work is covered in writing for a full year. That’s The Garrison Standard, and it applies to every job we do in Long Beach, from homes near El Dorado Park to older builds in Wrigley and Bixby Knolls.
FAQs
A Honeywell UV lamp is rated for about 8,000 to 10,000 hours of operation, which works out to roughly one to two years of continuous use depending on how your system cycles. In Long Beach, where salt air and humidity accelerate corrosion on the ballast and mounting hardware, we recommend inspecting the entire module annually even if the lamp tests fine. If the ballast or bracket fails early, it’s usually corrosion, not the bulb, and catching it early saves you a full module replacement.
Most failures can be repaired with a single component: the lamp, the ballast, or the mounting bracket. The housing itself rarely fails unless it’s been physically damaged. We stock all three replacement components, so a full module replacement is only necessary if the housing is cracked or the wiring harness has shorted. Call (562) 548-7365 and we’ll walk through the symptoms to figure out what you actually need before we dispatch a technician.
Most replacements take 45 minutes to an hour from start to finish, assuming the module is accessible. That includes removing the old component, installing the new one, testing the system, and cleaning up. If we need to repair or replace a mounting bracket in a tight attic, it can take up to 90 minutes. You’ll know the price and the timeline before we begin.
We stock OEM Honeywell lamps for the UV2400 series and AirWatch modules, plus Guardsman aftermarket lamps that match the OEM specs. We also stock ballasts and mounting hardware for both series. If you have a less common Honeywell sanitizing model, we can usually source the part within one or two business days. Call (562) 548-7365 with your model number and we’ll confirm what’s on the truck before we head out.
Written by Roy Castellanos, Owner, Hollis Air Duct Long Beach at Hollis Air Duct Long Beach, serving Long Beach and nearby areas.
Need a Honeywell vent sanitizing part in Long Beach? Call (562) 548-7365 for a written estimate and same-day availability. We also stock parts for Lennox, Trane, and Carrier systems.