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.
Aprilaire Vent Sanitizing: The Yonkers Owner’s Guide
We stock and install Aprilaire vent sanitizing components across Yonkers, with most replacements running $220 to $410 installed depending on your model and access. Same-day appointments are usually available when you call before noon. Most owners discover a problem the same way: a musty smell that returns weeks after a cleaning, or a sanitizing indicator on the Aprilaire control that never seems to cycle the way it used to. The good news is that this is rarely a mystery repair. The symptoms point pretty directly at what failed, and we can usually tell you the part and the price over the phone before we even roll the truck.
Which Aprilaire Models This Applies To
Aprilaire’s vent sanitizing hardware shows up primarily on the Model 5000 electronic air cleaner line and a handful of whole-house dehumidifier and ventilator combinations from the 8000 series. The part you’re most likely dealing with is the duct-mounted sanitizing module, which Aprilaire engineers as a UV or ionization cartridge that sits downstream of the filter rack, or the matching relay board that tells it when to fire. In Yonkers, where summer humidity hangs around well into September, these boards work harder than they do inland, and we replace a disproportionate number of them compared to crews in dryer markets.
Here’s the compatibility gotcha most owners hit: Aprilaire has changed the mounting bracket and wiring harness twice since 2016, and the newer modules don’t simply drop into an older Model 5000 shell without a small adapter plate. We keep those adapter plates on the truck. We’re an independent service provider, not affiliated with Aprilaire, but we install OEM Aprilaire modules where they’re available and quality aftermarket equivalents from Honeywell and Guardsman where they’re identical in spec and quicker to source. For most Yonkers homes, the aftermarket equivalent saves about 20 percent and carries the same one-year written guarantee we give on every parts replacement.
Styles & brands we work with




Signs Your Aprilaire Vent Sanitizing Is Failing
- Musty odor returns within days of a full duct cleaning. When the sanitizing module stops firing, mold and mildew spores that pass through the air handler recolonize damp surfaces almost immediately. That’s the classic tell in Yonkers basements, where even a clean duct system stays humid enough for this to happen fast.
- Indicator light on the Aprilaire control is dark or flickering. The relay board that powers the sanitizing module is almost always the first component to go. A flicker usually means a failing relay; a dark indicator usually means the board stopped sending voltage entirely.
- You can hear the air handler running but never see the module cycle. On Aprilaire systems with a visible status window, you should see the sanitizing indicator cycle roughly once per hour of runtime. If it never changes, the module or its power supply has likely failed.
- Someone in the house with allergies notices symptoms worsening. A sanitizing module that’s dead isn’t removing biological particulates from the airstream. For Yonkers residents near the Saw Mill River corridor, where spring pollen counts climb early, this can be the quietest and most persistent symptom.
- The unit is over six years old and hasn’t had the module inspected. Aprilaire specifies a finite bulb or cell life on all sanitizing components. Most homes in the Nodine Hill and Lincoln Park neighborhoods we service discover the failure only when a technician opens the access panel and sees the module is physically corroded or the bulb is blackened.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
In Yonkers, a complete Aprilaire vent sanitizing replacement runs $220 to $410 installed for most residential systems. That’s the full number: the module or bulb, the relay board if it needs one, any adapter plate, and the labor to do the swap and verify the system cycles. The spread between low and high depends mostly on two things: whether your existing relay board can be reused, and whether your Model 5000 shell predates the 2016 bracket change. Older shells need a $35 adapter plate. Homes near the Hudson River waterfront with harder water and higher ambient salt in the air tend to need the relay board replaced more often, which pushes the job toward the top of the range.
Before any work starts, you get a written price. It does not change at the door. The part itself carries a written guarantee, and if the repair fails within 365 days, we come back and correct it at no charge under our 365-Day Done Right Promise. That’s a full year, not a 30-day warranty. It applies to every booking, no exceptions.
DIY or Call Us?
You can safely do two things yourself before calling. First, check the Aprilaire control for a fault code or a dark indicator. Second, take a look at the access panel placement and note the model number on the unit’s side label, because that tells us exactly which module you need. What you should not do is open the access panel and start probing. The sanitizing module runs on 120-volt or 240-volt line current depending on the installation, and the relay board can hold a charge even after the unit is powered down. There’s also the less glamorous reality: without a multimeter and the Aprilaire spec, you can’t tell the difference between a dead module and a failed relay board, and replacing the wrong part doesn’t fix the smell. If you’d rather not touch line voltage at all, call (914) 613-6563 and we’ll send Omar Haddad or one of our technicians with the right part already on the truck.
FAQs
Most modules and bulbs are rated for 12 to 24 months of effective output, with relay boards typically lasting 5 to 7 years in Yonkers’ humid summer climate. If yours is over two years old, it’s likely past its useful sanitizing output even if it still lights up. Call (914) 613-6563 and we’ll tell you the lifespan spec for your exact model.
In most cases, no. The bulb or cell in the module cannot be rebuilt, and a failed relay board is a component-level failure that costs more in technician time to repair than to replace with a new board. We’ll always quote you the replacement price before any work, so you’re never guessing. Call (914) 613-6563 for an exact quote.
Most Aprilaire replacements take 45 to 75 minutes from start to finish, including the time to verify the system cycles and test the relay board. If your shell is an older Model 5000 and needs the adapter plate, add about 15 minutes. We’ll give you a written price and a live arrival window before the truck leaves the shop.
We stock the common Aprilaire modules, bulbs, relay boards, and adapter plates on our service trucks across Yonkers, so we typically complete the job in one visit. If you have an uncommon 8000-series configuration, we’ll order the exact OEM part and have it in hand within two business days. Call (914) 613-6563 and we’ll tell you on the spot whether we have your part onboard.
If your Aprilaire vent sanitizing has failed and the air in your Yonkers home is starting to smell like the basement of a building that’s older than it looks, call (914) 613-6563. Omar Haddad and the Cardinal Air Duct Yonkers team will give you the price, the part, and the plan before any work begins. Clean ducts aren’t a luxury, they’re just the part of your HVAC system nobody thinks about until something goes wrong.
Written by Omar Haddad, Owner, Cardinal Air Duct Yonkers at Cardinal Air Duct Yonkers, serving Yonkers and nearby areas.