Whole-home duct cleaning
Dryer vent cleaning
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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 Fort Worth Owner’s Guide
If your Honeywell vent sanitizing system has stopped working, we stock Honeywell-compatible UV sanitizer bulbs, ballasts, and control modules on our trucks here in Fort Worth, and installed replacement typically runs $240 to $520 depending on your unit and what failed. Most owners discover the problem because the indicator light goes dark, the bulb flickers, or the system stops producing that faint ozone smell after the fan kicks on. We’ll match the part to your specific Honeywell model, price it in writing before we touch anything, and stand behind the work for a full year.
Here’s the part most people don’t realize until they’re standing in front of a dead unit: Honeywell vent sanitizing systems are not all the same. The UV bulb in an 8-inch inline unit is not interchangeable with the one in a 12-inch duct-mounted system, and the ballast voltage has to match or the new bulb dies in weeks. We see it in Fort Worth all the time: someone buys a cheap “universal” bulb online, installs it, and six weeks later it’s dark again. That’s not a bulb problem; that’s a mismatch problem.
Which Honeywell Models This Applies To
The Honeywell UV air treatment line includes the UV100A, UV2400, and UV5000 series, plus the newer Surface, Coil, and Dual Lamp configurations that install directly into the supply plenum or return duct. Each uses a specific lamp wattage, length, and base type. The UV100A, for example, runs a 36-watt lamp that’s roughly 15.5 inches long, while the UV5000 series steps up to 50 watts and needs a larger ballast to drive it. The model number is printed on a silver label on the ballast housing or the lamp base itself. Before you order anything, read that label.
On the OEM-versus-aftermarket question for Honeywell specifically: Honeywell-branded replacement lamps cost more, usually $90 to $180 for the bulb alone, while quality aftermarket equivalents from brands like Lightsources or Steril-Aire run $55 to $120 and often carry the same 9,000-hour rated life. The catch is ballast compatibility. Honeywell ballasts are picky about lamp wattage, and a lamp that’s within 5 watts of spec will usually run, but a lamp that’s off by 10 watts or more will either fail early or trip the ballast’s internal protection. We stock both OEM and proven aftermarket options and match them to your exact unit.
One thing to know in Fort Worth: dust load matters here. We have clay-heavy soil, long dry spells, and pollen seasons that run from February through June. UV bulbs lose effectiveness when the quartz sleeve gets coated with dust or film, which happens faster here than in humid climates. A bulb rated for 9,000 hours may need its sleeve cleaned every 6 to 12 months to actually deliver that lifespan. If you skip the cleaning, you’re buying bulbs more often than the spec sheet says you should.
Styles & brands we work with




Signs Your Honeywell Vent Sanitizing Is Failing
Here’s what we hear most often from Fort Worth homeowners before they call us:
- Indicator light is off or dim. The ballast’s LED status light tells you whether the lamp is getting power. If it’s dark but the fan still runs, the ballast may have tripped its internal protection after a lamp failure, or the lamp connection has loosened from vibration. This is the most common failure we see.
- Bulb flickers or buzzes. A flickering UV lamp usually means the ballast is on its way out, not the bulb. Ballasts last 3 to 5 years on average, and when they start to go, they often take the lamp with them. Swapping only the bulb won’t fix it; the new bulb will flicker too.
- No smell change when the system runs. UV air treatment produces a faint, almost metallic ozone scent, especially on high settings. If you used to notice it and now you don’t, the lamp is likely dead even if the ballast still powers up.
- Lamp is visibly dark at one end or has white deposits. This is end-of-life for a UV-C bulb. The darkening at the electrode is normal aging, but white or cloudy deposits on the quartz mean moisture or dust got into the sleeve, which cuts output dramatically.
- System runs but the room smells musty or stale. This means the sanitizer isn’t doing its job anymore. In a Fort Worth summer, when the AC runs constantly, a dead UV unit shows up fast because the coil box stays wet and starts growing things within weeks.
See the difference
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AfterReplacement Cost & What’s Included
In Fort Worth, a complete Honeywell vent sanitizing replacement, parts and labor included, lands between $240 and $520. The spread comes down to three things: which series unit you have, whether it’s the bulb only or the bulb plus ballast, and whether the quartz sleeve needs replacement from buildup. Here’s the breakdown:
- UV lamp only (UV100A or aftermarket equivalent): $240 to $320 installed
- UV lamp plus quartz sleeve: $290 to $380 installed
- Lamp plus ballast (UV5000 or similar): $380 to $520 installed
- Full unit replacement (when the housing is cracked or damaged): $450 to $650 installed
Every quote is written down before we start. No per-vent pricing, no “while we’re in there” upsell that doubles the bill. The price you sign is the price you pay. And every replacement is covered by our 365-Day Done Right Promise: if the part fails or the installation wasn’t done right within a year, we come back and make it right at no charge. That includes a free second visit.
DIY or Call Us?
Here’s the honest split. You can safely do two things yourself: check the model number on the ballast label, and visually confirm the bulb is dark, flickering, or coated. That’s it. UV-C light is genuinely dangerous to your eyes and skin, and the lamp sits inside the duct where line voltage is present at the ballast. The power has to be fully shut off at the breaker, not just the thermostat. If you’re not comfortable working inside the supply plenum around line voltage and UV components, don’t guess. A wrong wattage bulb installs in five minutes and fails in six weeks, and you’re back where you started, minus whatever you paid for the part.
We do this work in Fort Worth every week. We show up with the right lamp and ballast on the truck, price it in writing, do it by the book, and leave the site clean. Call (682) 255-2572 and we’ll get the model number from you over the phone and tell you exactly what we’ll bring and what it’ll cost.
FAQs
Honeywell rates their UV-C lamps at 9,000 hours of effective output, which works out to roughly 12 to 18 months of continuous operation in a Fort Worth home where the fan runs heavily from May through September. The ballast typically lasts 3 to 5 years. If your bulb is dark before the 12-month mark, check the sleeve for dust or film buildup; it’s usually a cleaning issue, not a defective lamp. Call (682) 255-2572 for a quote on replacement bulbs matched to your model.
UV-C bulbs cannot be repaired. Once the electrode degrades or the quartz coat fails, the lamp is done. Ballasts can sometimes be reset by cycling power at the breaker, but if the light stays dark or flickers after that, the ballast needs replacement, not repair. We don’t patch these; we replace them with the correct part and warrant it for a year.
A straightforward lamp replacement takes 30 to 45 minutes. A lamp plus ballast job runs 60 to 90 minutes. If the quartz sleeve is heavily coated and needs cleaning or replacement, add 20 minutes. We do these in a single visit because we stock the parts on the truck, sorted by series, so we’re not running to a supply house while you wait.
We stock Honeywell UV100A, UV2400, and UV5000 series lamps, ballasts, and quartz sleeves on the truck, along with proven aftermarket equivalents from Lightsources and Steril-Aire. We also carry sanitizing components for Lennox, Trane, and Carrier systems, but the Honeywell lines are the ones we replace most often in Fort Worth. If you have an unusual model, we can still usually source the part within one business day and install it the following day.
Clean ducts don’t advertise themselves, but dirty ones will. If your Honeywell vent sanitizing unit is down, don’t wait until the coil box tells you. Call (682) 255-2572 for a free estimate, or ask for Roy directly. We’ll get the model number, give you a written price, and show up uniformed and on time.
Written by Roy Castellanos, Owner, Hollis Air Duct Fort Worth at Hollis Air Duct Fort Worth, serving Fort Worth and nearby areas.