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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.
Aprilaire Vent Sanitizing: The Fort Worth Owner’s Guide
We stock and install Aprilaire-compatible vent sanitizing components for Fort Worth homes, with most replacements running between $275 and $540 installed depending on the model and access. We carry the common Aprilaire parts on our trucks, so most callouts are done in a single visit. The way most homeowners find out this part has failed is an odor that won’t quit: the sanitizing element stops producing, the fan keeps circulating, and what used to smell clean now just smells like warm dust.
Aprilaire builds vent sanitizers as part of their air purification lineup, and the parts inside them are consumable. That’s the plain fact. The UV lamp or sanitizing cartridge has a finite run life, and in Fort Worth’s summer heat, that life gets shorter. We’ll get into the specifics below, including model matching, honest pricing, and why some units fail early.
Which Aprilaire Models This Applies To
This covers the Aprilaire vent sanitizing units that mount in the ductwork or air handler, most commonly the older 1700-series and the 5000-series electronic air cleaner platforms with the sanitizing add-on, plus the newer Aprilaire 3000 and 4000 model lines. The key identification point is the label on the unit’s power supply or mounting plate. It’ll list a model number like 1730, 1830, 1930, or a sanitizing lamp module paired with the Aprilaire 5000.
Here’s the compatibility gotcha we see in Fort Worth homes all the time: the Aprilaire sanitizing lamp is not interchangeable between the 1700 and 3000 series, even though the bulbs look close to the same length. The connectors differ, and the ballast voltage does too. If you pull a part number off the old bulb or cartridge, match it exactly. We keep the correct OEM replacements for the 1700, 5000, and 3000/4000 series on the truck, and we stock quality aftermarket equivalents where they meet or exceed OEM spec. For Aprilaire specifically, we recommend the OEM bulb or cartridge on units still under warranty. On older units past their warranty window, the aftermarket part is usually fine and saves you around $40 to $80. We’ll show you the difference before we install anything.
We also stock and service vent sanitizing parts for Lennox, Trane, and Carrier systems, but Aprilaire is the one that keeps us busiest in this area.
Styles & brands we work with




Signs Your Aprilaire Vent Sanitizing Is Failing
The part doesn’t just quit silently. It usually announces itself in one of these five ways:
- Odor returns within days of cleaning. The sanitizing element is dead and the unit is now just pushing air through a dark box. If you had your ducts cleaned and the smell came back in a week, this is the first thing we check.
- The indicator light is out or blinking. Aprilaire units have a status LED on the power supply. A steady light means running. Off or blinking means the lamp or ballast has failed. Easy check before you call.
- The bulb is visibly dark or blackened at the ends. UV sanitizing lamps turn dark at the base contacts near end of life. If you can see the bulb through the sight window, a dark end means it’s done.
- Hissing or buzzing from the unit. That’s the ballast struggling to fire a lamp that won’t start. It’ll keep trying until the ballast burns out too. Turn the unit off and call us.
- Runtime hours exceeded. Most Aprilaire sanitizing lamps are rated for 9,000 to 12,000 hours, which works out to about one year of continuous run time. In Fort Worth, where the system runs longer in the cooling season, that number arrives faster than the label suggests.
Replacement Cost & What’s Included
In Fort Worth, an Aprilaire vent sanitizing lamp replacement runs $275 to $385 installed. If the ballast or power supply has also failed, which happens when a dead lamp is left running too long, expect $420 to $540. That covers the part, the labor, disposal of the old bulb, and a function test on the whole sanitizing unit before we leave.
Here’s our pricing table so you can see exactly what drives the range:
| Service | Typical Fort Worth Price |
|---|---|
| Sanitizing lamp replacement (OEM) | $275 – $385 installed |
| Ballast or power supply replacement | $180 – $260 |
| Lamp + ballast together | $420 – $540 installed |
| Full sanitizing unit replacement | $650 – $900 installed |
Every quote is written before we touch anything, and it does not change at the door. The 365-Day Done Right Promise covers the labor and the part we install for a full year. If it fails, we come back and make it right at no charge.
See the difference
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After
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After
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AfterDIY or Call Us?
You can safely check the status light, note the model number off the label, and look through the sight window to see if the bulb is dark. That tells you what’s wrong and helps you get an accurate quote over the phone. What you should not do is open the unit and pull the lamp yourself. Aprilaire sanitizing units run on a ballast that holds a charge even after the unit is switched off, and UV lamps contain mercury. Break one, and you’ve got a hazmat cleanup in your ductwork. That’s not a warning to scare you. It’s the reason we treat these with real care on every call.
If you’ve confirmed the lamp is dark or the light is blinking, call (682) 255-2572 and tell us the model number. We’ll bring the right part the first time and have your system sanitizing again the same day.
FAQs
Most Aprilaire sanitizing lamps are rated for 9,000 to 12,000 hours, or about one to two years under typical run conditions. In Fort Worth, where HVAC systems run hard from May through October, we see most lamps hit end of life in 12 to 18 months. If you run the fan continuously for filtration, expect the shorter end of that range.
Yes when it’s the lamp, and usually no when it’s the ballast. A dead lamp is a simple swap. A failed ballast is often cheaper to replace outright than to repair, because the labor to diagnose and rebuild a ballast exceeds the cost of a new one on most Aprilaire models. We’ll tell you which one you’re dealing with before any money changes hands. Call (682) 255-2572 and we’ll walk you through it.
A straight lamp swap on an Aprilaire vent sanitizing unit takes 30 to 45 minutes from arrival to test-complete. If the ballast needs replacing too, figure 60 to 90 minutes. Most Fort Worth appointments are done in one visit because we carry the parts on the truck.
We stock the OEM lamps and power supplies for the Aprilaire 1700-series, 5000-series with sanitizing add-on, and the 3000/4000 model lines. If your unit is a less common model, we’ll have the part ordered and in hand before we schedule the visit. You’ll know the price before we arrive.
Contact Hollis Air Duct Fort Worth
Roy Castellanos has been cleaning and inspecting duct systems across Fort Worth for the better part of two decades, and he’ll tell you the same thing he tells every homeowner: “Clean ducts don’t advertise themselves, but dirty ones will.” If your Aprilaire vent sanitizing unit is dark, blinking, or just not doing its job, call us at (682) 255-2572 for a free estimate. We answer the phone 24/7 with a live person, we price the job in writing before we start, and we stand behind the work for a full year. Hollis Air Duct Fort Worth is an independent service provider, not affiliated with Aprilaire, but we know their equipment as well as anyone in the trade.
Written by Roy Castellanos, Owner, Hollis Air Duct Fort Worth at Hollis Air Duct Fort Worth, serving Fort Worth and nearby areas.