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.
Abatement Technologies Vent Sanitizing: The Marietta Owner’s Guide
If your Abatement Technologies vent sanitizing unit has stopped producing sanitizer, is throwing an error code, or the UV lamp won’t fire, we can get it diagnosed and back online, usually with parts on the truck the first trip. In Marietta, a complete Abatement Technologies vent sanitizing replacement typically runs $385 to $620 parts and labor, with the work done in one visit that takes about 90 minutes. Most homeowners discover the failure when the indicator light on the control module stops glowing, or when a musty smell returns to the ducts a few weeks after a cleaning.
Here’s the blunt truth about these units as Marcus Veale likes to put it: “Tell me what’s in the system before you tell me what it costs to fix it.” That means we test the lamp, ballast, and control board before quoting anything. We’re an independent service provider that installs and services Abatement Technologies-compatible vent sanitizing equipment in the Marietta area, and we’ve pulled enough of these apart to know exactly what fails first in Georgia humidity.
Which Abatement Technologies Models This Applies To
Abatement Technologies makes several vent sanitizing lines, and the part numbers actually matter here because the lamp wattage and mounting pattern vary between series. The most common units we see in Marietta homes are the CAP Series (CAP1200, CAP2400) and the Air Scrubber Plus line, which Abatement distributes. The CAP series uses a 14-inch or 18-inch UV-C lamp with a magnetic-mount ballast, while the Air Scrubber Plus uses a proprietary 14-inch lamp with a pin-style connector that is not interchangeable with the CAP line.
The identifying label is on the side of the metal housing near the power cord. You’re looking for a white sticker with the model number printed in the format “CAP-1200-14” or similar. The last two digits tell you the lamp length in inches, and that’s the single most important number when ordering. If the label is worn off, measure the glass tube end to end, not including the pin connectors. A 14-inch lamp in a 16-inch housing is common, and guessing wrong means the unit won’t seal properly against the duct.
For Abatement Technologies specifically, we recommend OEM lamps over aftermarket equivalents. The aftermarket UV-C lamps are often a third cheaper, but we’ve measured the output on several generic brands and seen them fall below 75% intensity within 12 months. An OEM Abatement lamp costs more up front but holds intensity for a full 18 to 24 months, which is the actual replacement interval you should plan for. That’s not a sales pitch, it’s what our light meter shows on units we’ve been servicing in East Cobb homes for years.
Styles & brands we work with




Signs Your Abatement Technologies Vent Sanitizing Is Failing
- No indicator glow or a blinking status light. This almost always points to the ballast or the lamp itself. The ballast is the weak link in these units, especially in Marietta summers when attic-mounted equipment gets cooked to 130 degrees. When the ballast fails, it usually takes the lamp out with it, which is why we replace both as a set.
- Musty odor returning within weeks of a duct cleaning. The sanitizer is supposed to knock down microbial growth on the coil and duct surfaces continuously. When it’s dead, there’s nothing stopping the regrowth, and you’ll smell it first in the rooms closest to the air handler.
- A faint buzzing or humming from the unit. That’s the ballast struggling to fire the lamp. It can buzz for weeks before it quits entirely. Catching it early means a $90 ballast instead of a $400 full replacement.
- The lamp is visibly flickering or glowing unevenly. UV-C lamps don’t flicker when they’re healthy. Uneven glow means the mercury vapor inside the tube is not exciting properly, and the lamp is on its way out. This is also a sign the unit was installed too close to a bend in the duct and has been getting rattled by turbulence.
- Higher humidity or more dust than usual. The sanitizer reduces biological load, not particulate, but a working unit does help keep the coil drier and less hospitable to mold. When it fails, you’ll often notice the air feels heavier, especially in split-level homes around Kennesaw where return air paths pull moisture from the crawlspace.
See the difference
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After
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Before
AfterReplacement Cost & What’s Included
In Marietta, expect to pay $385 to $620 for a full Abatement Technologies vent sanitizing replacement, installed. That includes the lamp, ballast, control board if needed, mounting hardware, and the labor to pull the old unit, clean the mounting surface, install the new one, and verify UV output with a meter.
Here’s how that range breaks down:
- Lamp-only replacement: $85 to $140 for the OEM lamp, plus a service call. We do lamp-only swaps when the ballast tests good under load.
- Ballast and lamp as a set: $220 to $310. This is the most common repair. Replacing only the ballast on a 14-month-old lamp is false economy because the old lamp drags down the new ballast.
- Full unit replacement: $385 to $620, depending on whether we’re matching an existing CAP Series footprint or installing a new Air Scrubber Plus with a slightly larger housing. New units include a one-year manufacturer warranty on the lamp and ballast.
Every repair from Linden Air Duct Marietta includes our written guarantee, and if a covered repair fails, we return at no charge. The price you’re quoted is the price on the invoice. We put it in writing before we start, every time.
DIY or Call Us?
You can safely do the diagnosis part yourself. Check whether the unit is getting power by confirming the outlet or junction box is live. Look at the sight glass or lamp window to see if the bulb appears darkened at the ends, which indicates a lamp that’s reached the end of its useful life. Write down the model number from the side label. That’s useful information to have before you call.
What we don’t recommend is opening the housing and handling the UV-C lamp yourself. UV-C light damages skin and eyes quickly, and the lamp contains mercury vapor, which means a broken tube is a hazmat cleanup situation, not a run-of-the-mill broken bulb. More to the point, if the unit wasn’t sealing against the duct properly and has been drawing attic air, there’s no way to confirm that without a smoke pencil test and a UV meter, which most homeowners don’t keep in the garage. You’ll get a cleaner diagnosis and a better long-term result if we check it with equipment designed for exactly this job.
If your Abatement Technologies vent sanitizer is down or even just acting suspicious, call (912) 405-8840 and we’ll get it sorted. We’ll tell you over the phone what the likely problem is, and you’ll have a written price before anything gets unbolted.
FAQs
The lamp lasts 18 to 24 months of continuous use in our climate; the ballast typically lasts 3 to 5 years. Georgia summers shorten both lifelines because the heat forces the ballast to work harder to fire the lamp, and the constant attic heat degrades the lamp’s internal gas fill faster than the manufacturer’s rating assumes. Plan to replace the lamp every 18 months and both the ballast and lamp together any time the ballast shows signs of weakening. Call (912) 405-8840 for a free estimate on your specific setup.
Yes, and the most common repair is replacing the lamp and ballast together. The control boards in these units are generally reliable unless the unit has been exposed to water or a power surge. If the board is still delivering the right voltage to the ballast, you’re looking at a partial repair in the $220 to $310 range, not a full unit swap.
A typical vent sanitizing replacement takes about 90 minutes from arrival to cleanup. That includes pulling the old unit, inspecting the duct mounting surface for air gaps, installing the new unit, sealing the penetration, and running the UV output test to confirm the lamp is firing at full intensity before we leave.
We keep the most common CAP Series and Air Scrubber Plus lamps and ballasts on the service truck. If your unit takes an uncommon lamp length or mounting configuration, we can usually have the right part in hand within two to three business days. Lennox, Trane, and Carrier vent sanitizer parts are also stocked for customers with mixed systems.
Written by Marcus Veale, Owner, Linden Air Duct Marietta at Linden Air Duct Marietta, serving Marietta and nearby areas.