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 Fresno Owner’s Guide
We stock and install Abatement Technologies-compatible vent sanitizing components throughout Fresno, with most replacements running $285 to $520 installed, depending on which Abatement Technologies unit you have and whether the UV lamp, ballast, or the sanitizing module itself is the failed part. We carry OEM Abatement Technologies replacements and quality aftermarket equivalents on the truck, so most Fresno jobs are done in a single visit. The way most homeowners discover a problem is straightforward: the indicator light on the unit goes dark, or the room smells like the system hasn’t been treating the air for weeks, or the annual service reminder on the duct inspection flags it.
Before you start guessing at part numbers, let’s narrow down exactly what you have. The good news is that Abatement Technologies kept the mounting pattern consistent across their vent sanitizing line, but there are real compatibility differences between the UV-C lamp wattage and the control modules. If you call us at (559) 272-4989 with the model number off the side of the unit, we can usually confirm the right part before we roll a truck over to your side of Fresno.
Which Abatement Technologies Models This Applies To
The Abatement Technologies vent sanitizing line covers three main configurations we see in Fresno homes: the in-duct UV-C sanitizers mounted just above the evaporator coil, the PCO (photocatalytic oxidation) units that sit in the supply plenum, and the smaller stand-alone units installed in closet air handlers. The most common models we replace parts on are the UVS series and the VP series, plus the newer variable-output units in homes built out toward Clovis in the last five years.
Here’s the compatibility gotcha nobody tells you: Abatement Technologies changed their lamp connection style in 2019. Older Fresno units use a 4-pin twist-lock lamp base. Newer units use a 2-pin straight-push base. The lamps are not interchangeable, even if the wattage looks the same on the sticker. Before you order anything online, pull the lamp out and check the pin configuration. Better yet, snap a photo of the label and the socket and text it to us at (559) 272-4989. We’ll tell you exactly what fits.
On the OEM versus aftermarket question for Abatement Technologies specifically: the OEM lamps are manufactured to tight output tolerances and typically hold their rated UV-C intensity for 9,000 to 12,000 hours in Fresno conditions. Quality aftermarket lamps from brands we trust can match that, and they typically run 20 to 35 percent less than the OEM unit. The aftermarket lamps we don’t stock are the cheap import bulbs that lose over half their UV-C output within the first year. That’s a waste of your money and a false sense of what’s actually happening in your ducts.
Styles & brands we work with




Signs Your Abatement Technologies Vent Sanitizing Is Failing
- The indicator light is off or flickering. Most Abatement Technologies units have a lamp indicator that goes dark when the UV-C bulb has reached the end of its effective life. A flickering light usually means the ballast is starting to fail, not the lamp itself.
- Musty or stale smell returns within days of a duct cleaning. When the sanitizer stops working, the coil and the surrounding duct surfaces start holding moisture and microbial growth again. Fresno’s hot summers accelerate this, especially in homes that run the AC constantly from June through September.
- The unit is warm to the touch but the bulb is not glowing. A warm housing with no visible glow through the viewport usually means the ballast is drawing power but not firing the lamp. That’s a ballast replacement, not a lamp replacement.
- Your energy bill ticks upward without a change in usage. A failing UV-C system forces your AC to work harder because coil fouling builds up faster. We see this most often in older ranch homes near Tower District where the equipment is original to the house.
- The lamp has visible dark spots at the ends or a white haze inside the glass. These are signs the lamp has been running past its useful life. The darkening at the pins is normal aging, but a white haze inside the tube means the mercury has deposited and the UV-C output has dropped well below effective levels.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
In Fresno, expect to pay $285 to $520 installed for Abatement Technologies vent sanitizing replacements. A UV-C lamp replacement alone runs $285 to $370. A ballast replacement runs $320 to $450. A full sanitizing module replacement, which includes both the lamp and the control module, runs $420 to $520. The spread depends on your Abatement Technologies model, whether it’s an OEM or quality aftermarket part going in, and how accessible the unit is in your ductwork.
Here’s what that price includes, every single time, in writing, before any work starts:
- The replacement part (OEM Abatement Technologies or an aftermarket equivalent we’d put in our own houses)
- Removal of the failed component and installation of the new one
- Coil inspection while we’re in there, with photos shown to you on the spot
- Confirmation that the new lamp is firing and the system is working correctly
- Written guarantee on the repair, backed by our 365-Day Done Right Promise
We do not do per-vent pricing on sanitizer work. The flat price covers the whole repair, agreed to in writing before we touch a tool. Marcus Veale is known for quoting a flat, honest price before anyone picks up a screwdriver. That’s been the standing rule since day one, and it applies to every vent sanitizing job we do in Fresno.
DIY or Call Us?
What you can safely check yourself: the lamp indicator light, whether the bulb glows through the viewport, and whether the lamp has visible dark spots or haze. Pulling the lap to check the pin style is fine, as long as the unit has been unplugged for at least ten minutes. UV-C lamps stay warm, and the caps hold a charge.
Where DIY goes wrong is the ballast replacement. The ballast on an Abatement Technologies unit converts line voltage to the high frequency the lamp requires. If you miswire that, you can fry the new ballast or the control board, and now your $320 repair is a $520 replacement. The units also sit in tight duct spaces, which means working overhead or in a crawl space with wiring in play. That’s a job for someone who does it weekly.
If you’re in Fresno and the sanitizer is acting up, call us at (559) 272-4989. We’ll tell you over the phone whether it sounds like a lamp, a ballast, or something else, and we’ll give you the flat price before we schedule anything.
FAQs
Plan on 12 to 18 months of effective sanitizing output in a typical Fresno home, even though the lamp may keep glowing for longer. Fresno’s long cooling season means the system runs heavily from May through October, which burns through the lamp’s useful life faster than the manufacturer’s max-hour rating suggests. If the glow is still visible but you can’t remember when you last replaced it, you’re probably overdue. Call (559) 272-4989 and we’ll check it while we’re out for your next duct cleaning.
Lamps cannot be repaired, only replaced. Ballasts can sometimes be rebuilt, but the labor cost usually exceeds the replacement cost, so we don’t offer that. The control modules on newer Abatement Technologies units are sealed and not serviceable. In practice, “repair” for these units almost always means replacing one of the three primary components. We’ll show you the failed part and explain exactly what happened before we quote the replacement.
Most Abatement Technologies vent sanitizing replacements in Fresno are done in 45 to 90 minutes, depending on how accessible the unit is. Attic installations in older Tower District homes with tight access hatches take longer than closet air handler units in newer builds out near Clovis. You’ll know the flat price and the time estimate before we schedule the visit.
Yes. We carry UV-C lamps in the common 4-pin and 2-pin configurations, matching ballasts for the UVS and VP series, and full replacement modules for the current Abatement Technologies line. If you have an older or less common model, we’ll order the exact OEM part and schedule the visit once it’s in hand. Either way, you get the written price before any work begins. We also work on duct systems paired with Lennox, Trane, and Carrier equipment, so if the sanitizer is tied into one of those systems, we can handle the whole job in one visit.
If your Abatement Technologies vent sanitizer is down, don’t let it ride through another Fresno summer. Call Linden Air Duct Fresno at (559) 272-4989 for a free estimate and a flat price in writing. Marcus Veale and the crew have served Fresno for years, and we’ll treat your system the same way we’d treat our own. If I wouldn’t leave it in my own house, I won’t leave it in yours.
Written by Marcus Veale, Owner, Linden Air Duct Fresno at Linden Air Duct Fresno, serving Fresno and nearby areas.