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 Pasadena Owner’s Guide
We stock and install Abatement Technologies vent sanitizing components for Pasadena homes, with typical installed replacement parts running $145 to $385 depending on your unit’s model and the sanitizing module involved. Most owners call us after their Abatement unit stops producing its normal output, or when a sanitizing lamp or module has clearly burned out. The fix is usually straightforward, and we carry the common replacement parts on our trucks, so most Pasadena jobs are done in a single visit.

Here’s the important part: we are an independent service provider, not affiliated with Abatement Technologies. What that means for you is we match parts to your exact unit by spec and compatible options, install them correctly, and stand behind the work with our 365-Day Done Right Promise, in writing, on every job. If it fails within a year, we come back and make it right at no charge.
Which Abatement Technologies Models This Applies To
Abatement Technologies builds vent sanitizing components into a range of HVAC and duct-mounted systems, not a single consumer product line. The most common units we see in Pasadena homes are duct-board and inline sanitizing modules, often tied to a UV or active purification element that mounts inside the supply plenum or duct trunk. Before ordering anything, you need to know which of these yours actually is.
The fastest way to identify the right part is to check the label on the module body itself. Abatement Technologies prints a model code and serial reference on the housing, along with the bulb or module spec. Write that down before you call. If the label has faded away, which happens in hotter attics around Pasadena, we can still match the part by measuring the mounting plate and wiring configuration. One compatibility gotcha that catches people off guard: an Abatement unit that fits a 6-inch duct opening will not retrofit onto a 4-inch or 8-inch opening without an adapter, and some older modules use a pin pattern Abatement changed around 2012. We check that before any part gets ordered.
On the OEM versus aftermarket question for Abatement Technologies specifically: OEM sanitizing bulbs and power modules cost more, but they match the original fixture exactly and carry the manufacturer’s own spec sheet. For the sanitizing chamber walls and some electrical components, quality aftermarket equivalents do exist and are worth considering if the OEM part is backordered. We will show you both options with written prices before we touch anything.
Styles & brands we work with




Signs Your Abatement Technologies Vent Sanitizing Is Failing
- The sanitizing indicator light is off or dim. This usually means the power module has stopped supplying the bulb or lamp element. The housing may still look fine, but the system is no longer doing its job.
- You notice an odor change in the air coming out of the vents. When the sanitizing element quits, dust and biological buildup start winning again. Pasadena’s older homes, especially around Hastings Ranch and Bungalow Heaven, run this pattern frequently because duct runs are long and attic heat shortens bulb life.
- The unit clicks or buzzes when the blower kicks on. That is the power module or ballast struggling. Ignoring it usually means a more expensive replacement later, because a failing ballast can take the bulb out with it.
- You see visible buildup or discoloration on the module face. Sanitizing modules should stay relatively clean when they are working. Coating and crust are signs the element has been dead for a while and the inner chamber is now collecting whatever passes through.
- The bulb or element has blackened ends or a cracked housing. That means the element is finished. If you can see that much damage, the module has likely been failing for weeks or months, not days.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
For most Abatement Technologies vent sanitizing setups in Pasadena, you should expect $145 to $385 installed. A simple bulb or lamp element swap runs at the lower end, typically $145 to $210, provided the power module is still good. A full module replacement with a new power supply usually lands between $275 and $385, depending on which model your system uses and whether any rewiring is needed.

Every quote is one flat price per system, agreed to in writing before any work starts. That price includes the part, the labor, the install, and the system test once we are done. There are no per-piece bumps and no surprise line items. The replacement is covered by our 365-Day Done Right Promise: if the part or the install fails within a year, we return and repair it at no charge, including a free second visit. Written prices and a written guarantee, the way it should be.
DIY or Call Us?
You can safely do one thing yourself: check the label and confirm whether your system is getting power at the outlet or switch. That is the easy diagnostic. Beyond that, we recommend calling us, and not just because we want the work. These modules tie into your HVAC electrical wiring, and in many Pasadena homes they sit in attic spaces with tight clearances and exposed duct metal. A short wiring mistake can damage the blower circuit, and a module mounted in the supply plenum requires resealing after any swap. If you would rather avoid a ladder, fiberglass, and a service call to fix a service call, just phone us at (626) 469-5477. We will get it handled in one visit.
FAQs
The sanitizing element in Pasadena typically lasts 12 to 24 months, depending on attic heat, runtime, and how much particulates the system has been handling. Pasadena’s summer attic temperatures routinely exceed 130 degrees, which shortens bulb life compared to coastal homes. Call (626) 469-5477 and we can tell you what your specific model should be getting based on its age and location.
It depends on what failed. A bad bulb or lamp element is a clean swap. A failed power module is usually replaced as a unit, and a cracked housing often means full replacement because sanitizing chambers cannot be safely patched. We will show you the failed part and explain exactly which route makes sense before any money is spent.
Most Abatement Technologies vent sanitizing replacements in Pasadena take 60 to 90 minutes from the time our technician starts work, including the system test. If we need to remove and reseal part of the duct mounting, it can stretch to two hours. We give you a window and we arrive inside it.
We keep the common Abatement Technologies sanitizing bulbs, power modules, and mounting hardware on our trucks, so most Pasadena jobs are completed the same visit. If your unit needs a model-specific part we do not have on board, we order it and schedule the install as soon as it arrives, with the price written down before we start. We also work on systems alongside Lennox, Trane, and Carrier equipment, so we can service the whole duct system, not just the sanitizing module.
When you are ready, call (626) 469-5477 for a free estimate. Roy Castellanos and our crew will tell you straight what the part costs, how long the job takes, and whether it even needs doing right now. The duct work doesn’t lie, and neither do we.
Written by Roy Castellanos, Owner, Hollis Air Duct Pasadena at Hollis Air Duct Pasadena, serving Pasadena and nearby areas.