Whole-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 Alexandria Owner’s Guide
We stock and install Abatement Technologies-compatible vent sanitizing systems for Alexandria homeowners, with installed pricing typically running $340-$580 depending on system size and access complexity. Most residential jobs are completed in a single visit because we carry the full Abatement Technologies-compatible component set on our trucks. Homeowners usually discover the issue after a musty smell persists past a standard duct cleaning, or when someone in the home with allergies notices symptoms returning within weeks of a previous service.
Which Abatement Technologies Models This Applies To
Abatement Technologies vent sanitizing components are most commonly found on their CAP600, CAP600-UV, and CAP1200 series central air purification systems, plus select HEPA-AIRE portable units retrofitted into residential ductwork in Alexandria. The sanitizing module itself sits downstream of the filter bank, typically mounted at the plenum (the main distribution box where heated or cooled air splits into individual duct runs) or at a dedicated access point in the return trunk.
To identify your exact unit, check the metal rating plate on the cabinet - not the filter frame - for a model string starting with “CAP” followed by a three- or four-digit number. The sanitizing component will have its own part label, usually prefixed with “UV” for ultraviolet units or “PCO” for photocatalytic oxidation modules. We stock both OEM Abatement Technologies replacement lamps and chambers, plus quality aftermarket equivalents from Lightspeed that match the 16-inch and 22-inch lamp lengths used across the CAP series. The aftermarket units carry the same 9,000-hour rated lamp life and fit the existing mounting brackets without modification, which matters in older Alexandria homes where the original bracket spacing was set during a 2015-2019 HVAC retrofit wave we see constantly in the Del Ray and Rosemont neighborhoods.
CleanRun Air Duct Cleaning Alexandria is an independent service provider and is not affiliated with Abatement Technologies. We source parts through authorized HVAC supply channels and verify fitment against the unit’s serial number before dispatch.
Signs Your Abatement Technologies Vent Sanitizing Is Failing

- Persistent musty or “locker room” odor from registers. The UV-C lamp in the sanitizing module has a finite output curve; after roughly 9,000 hours of runtime, the 254-nanometer wavelength drops below the threshold needed to break down microbial DNA. In Alexandria’s humid summers, that threshold crossing often happens faster because the lamp cycles more frequently as the system fights higher moisture loads.
- Visible dark spotting on the downstream side of the evaporator coil or duct walls near the plenum. This means the sanitizing effect has weakened enough that mold colonies are establishing downstream of where the treatment should reach. We photograph this exact condition during our pre-work inspection and show the customer the live image before quoting.
- Allergy symptoms returning within 30-45 days of a duct cleaning. A properly functioning Abatement Technologies sanitizing system should extend the clean-air interval significantly. If the interval collapses, the lamp or the PCO catalyst cell has likely degraded.
- The indicator light on the module housing is off, dim, or flickering. Abatement Technologies units use a simple LED to confirm lamp ignition. A dark LED often means the lamp has failed open, though it can also indicate a ballast issue - something we test with a multimeter before ordering parts.
- Acrid or “hot electrical” smell from the air handler cabinet. This points to a failing ballast or degraded lamp socket, both of which we replace as part of a complete sanitizing service rather than swapping the lamp alone and leaving the supporting hardware to fail next season.
Before
AfterReplacement Cost & What’s Included
For Alexandria-area homes, Abatement Technologies vent sanitizing replacement runs $340-$580 installed, with most single-lamp residential systems falling at $390-$450. The range reflects three factors: whether the unit needs a lamp-only replacement or a full module swap including ballast and socket; whether the plenum access panel is standard size or requires cutting in a new access point in tight colonial-era framing; and whether the system is a single-lamp CAP600 or dual-lamp CAP1200 configuration.
Every quote is delivered in writing before work starts under Haven Standard Clause 1. The price includes the Abatement Technologies-compatible component, installation, post-work airflow verification, and a full Documented Photo Record of the sanitizing module location, the old part condition, and the new component ignition test. The 365-Day Done Right Promise covers the installation and component function. We do not quote per-vent or per-room pricing - one flat price per system, agreed before any panel comes off.
DIY or Call Us?

An owner can safely check three things: whether the LED indicator is lit, whether the breaker feeding the air handler is engaged, and whether the filter is clean enough that airflow isn’t triggering a safety cutoff. Beyond that, vent sanitizing modules involve line-voltage electrical connections inside a live cabinet and UV-C lamps that will cause retinal burns if viewed directly while energized. The ballast also stores a capacitive charge after power-down.
We’ve been called to jobs in Alexandria where a homeowner replaced the lamp but missed a corroded socket, or installed a generic UV bulb with the wrong base spacing and cracked the quartz envelope during insertion. The duct doesn’t lie - we just show you what’s in it. If you want the work documented and warrantied, call (240) 318-7712 and we’ll put a written price next to it.
FAQs
The rated lamp life is 9,000 hours of runtime, which typically translates to 12-18 months in Alexandria’s climate where systems run heavily through humid summers and heating seasons. We recommend annual inspection because output degrades before total failure. Call (240) 318-7712 to schedule - estimates are free.
The lamp itself is always replaced, not repaired - the quartz envelope and mercury vapor fill are sealed and non-serviceable. The ballast and socket can sometimes be replaced individually if they test faulty, though we typically recommend the complete module to avoid a second service call. Call (240) 318-7712 for an exact quote.
Most residential Abatement Technologies vent sanitizing replacements take 90 minutes to two hours, including access, photography, component swap, ignition test, and cleanup. Tight plenum access in older Alexandria homes can add 30-45 minutes. Call (240) 318-7712 to book - we stock the components on our trucks.
We carry the full CAP-series lamp and module inventory on our trucks, including both OEM and Lightspeed aftermarket equivalents in 16-inch and 22-inch lengths. If your unit is a less common configuration, we verify fitment by serial number before dispatch so we’re not making a second trip. Call (240) 318-7712 to confirm availability for your specific model.
Written by Tomas Reyes, Owner & Lead Technician, CleanRun Air Duct Cleaning Alexandria at CleanRun Air Duct Cleaning Alexandria, serving Alexandria and nearby areas.




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