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.
Honeywell Air Quality & Sanitizing in Katy: What to Know First
CleanRun Duct Repair & Cleaning provides independent Honeywell service in Katy for homeowners dealing with persistent odors, allergen buildup, or microbial growth inside their ductwork. Most Honeywell air quality jobs we handle in the Katy area run $340-$780 for whole-system sanitizing, with UV light installations landing between $580-$1,200 depending on plenum access and electrical routing. Every job starts with a written price before any panel comes off, and every duct run is photographed before and after so you can see what was actually in there.
This page is for Katy homeowners running Honeywell whole-home air purifiers, UV treatment systems, or electronic air cleaners who smell something that shouldn’t be there, see allergy symptoms spike when the AC cycles, or want to know whether their system was actually cleaned or just vacuumed. Call (346) 666-7165 for a free estimate with a written scope.
How Honeywell Products Fail - and How We Fix Them
- Honeywell F300 Electronic Air Cleaner - ionizing wire corrosion. The tungsten wires in the F300 corrode faster in Katy than inland Texas markets because Gulf Coast humidity keeps the cells damp longer between cycles. Corroded wires don’t generate adequate ionization, so particles slip through into the ductwork and settle as a gray film on the evaporator coil. We replace the wire set with OEM-spec tungsten or, when the homeowner prefers, a coated wire upgrade that resists the salt-air load coming off I-10. The before photo does the talking. Everything after that is just paperwork.
- Honeywell UV100A Ultraviolet Air Treatment System - lamp degradation and false “blue glow.” The UV100A’s 24-volt ballast dims gradually; by month 14, many lamps still glow faintly blue but emit insufficient UVC intensity to break microbial DNA. Katy homeowners often tell us “the light’s still on” when we find zero microbe kill at the coil surface. We meter actual UVC output at the plenum with a radiometer, not eyeball the glow, and replace only when the reading drops below manufacturer spec.
- Honeywell TrueCLEAN FH8000 - clogged media and bypass airflow. The FH8000’s pleated media loads quickly during Katy spring pollen events, and some homeowners don’t realize the 6-month change interval shortens to 90 days when oak pollen counts spike in April. Clogged media creates bypass pressure that pulls unfiltered return air through gaps in the cabinet seal. We photograph the media loading, check cabinet gasket integrity, and reset the maintenance interval to actual local conditions rather than the national default printed on the box.
- Honeywell DR90/DR120 Whole-Home Dehumidifier - condensate pan microbial growth. These units, often paired with Honeywell air cleaners in Katy crawlspaces and attics, develop pink and black biofilm in the condensate pan when drainage slows. The pan isn’t visible during a standard duct cleaning, so the odor recycles through the supply registers even after the ducts look clean on camera. We pull the dehumidifier service panel, treat the pan with EPA-registered antimicrobial, and verify drain slope to the exterior - a step most duct-only outfits skip because it’s not in the duct run itself.
- Honeywell Whole-House Humidifier (HE360, HE365) - pad scale and reverse contamination. The evaporator pads in these flow-through units harden with Katy municipal water scale in two seasons, reducing humidification and creating a wet surface where bacteria colonize. Worse, a scaled pad can release mineral dust into the airstream during shoulder seasons when the humidifier cycles intermittently. We descale or replace the pad, treat the distribution tray, and document pad condition in the photo record so the homeowner has a dated baseline for the next replacement.
Our Honeywell Air Quality & Sanitizing Process

- 1
System inventory and written scope. We identify every Honeywell component in the system - air cleaner model, UV lamp part number, humidifier or dehumidifier series - and note any Lennox, Trane, or Carrier equipment integrated on the same duct system. You get a written price before we touch anything, per Haven Standard Clause 1.
- 2
Photo documentation of every duct run. Our technician, identified by name before arrival, pulls the camera before touching a single register. The photo record shows you what was actually in the plenum, the trunk lines, and each branch run - not a description, a picture.
- 3
Negative-pressure extraction with Rotobrush or Nikro agitation. We match the equipment to the duct construction: Rotobrush for flexible duct common in 2015-2020 Katy builds, Nikro high-velocity for the galvanized steel in older Cinco Ranch ranch homes. Agitation loosens debris; negative pressure pulls it out without contaminating the living space.
- 4
Honeywell-specific component service. UV lamps are metered for output. Electronic air cleaner cells are washed or replaced. Humidifier pads are inspected for scale. Dehumidifier pans are treated for biofilm. We use OEM Honeywell parts when available, quality aftermarket when lead times stretch past what’s reasonable for your system.
- 5
Antimicrobial application and odor treatment. Where mold or bacteria is documented, we apply Guardsman-registered sanitizer to the interior surfaces, not a fog-and-hope approach. The product is applied at manufacturer-specified dwell time and concentration.
- 6
Post-service test and photo record delivery. We verify airflow at key registers, confirm UV output or electronic air cleaner voltage, and deliver your documented photo record before the crew leaves. The 365-Day Done Right Promise applies in writing.
Before
AfterWhat Honeywell Air Quality & Sanitizing Costs in Katy
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Whole-system duct sanitizing (no UV) | $340-$580 | Number of duct runs, plenum access difficulty, presence of flex duct vs. rigid metal |
| Duct sanitizing + Honeywell UV lamp replacement | $480-$780 | Lamp model (UV100A single vs. dual-lamp), ballast condition, electrical routing to plenum |
| UV light installation (new, no existing unit) | $580-$1,200 | Plenum location (attic vs. closet), 120V vs. 24V power source, dual-lamp vs. single |
| Electronic air cleaner cell deep clean + wire replacement | $280-$440 | Cell count, wire corrosion severity, OEM vs. aftermarket wire selection |
| Dehumidifier pan treatment + drain verification | $180-$320 | Unit location (crawlspace vs. attic), drain line length, need for condensate pump service |
Price drivers in Katy specifically: homes near the Grand Parkway corridor often have longer duct runs in conditioned attics, which adds time. Older homes in Old Katy with galvanized steel ductwork need more aggressive agitation. We don’t price by square footage on your listing - we price by what the camera shows and what the system actually needs. Call (346) 666-7165 for a written estimate; there’s no charge to have us look and quote.
Why Katy Homeowners Call CleanRun Duct Cleaning Katy for Honeywell Work

We’ve been running jobs in Katy since 2013, and the Honeywell equipment we see most often is the same equipment we service most often - the F300 series, the UV100A, the TrueCLEAN line, the DR90 dehumidifier paired with newer Trane or Carrier systems in builds near LaCenterra. Tomas Reyes, our owner, spent years in the older ranch homes near Cinco Ranch where the ductwork tells you more about the house than the seller’s disclosure, and he built our process around documentation because he got tired of explaining why a homeowner’s “brand-new” home had dirty ducts.
Our technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. We also service Lennox, Trane, and Carrier air quality equipment, which matters because most Katy homes run mixed-manufacturer systems. The 365-Day Done Right Promise is in writing on every job, not a marketing claim. And if you’ve got a written estimate from another company, we’ll put our number next to it for free - Haven Standard Clause 5: Second Opinion.
FAQs
No. As an independent Honeywell service provider, we follow manufacturer service procedures and use OEM or equivalent-spec parts, which preserves warranty coverage on the equipment itself. Warranty claims are denied for improper installation or non-spec parts, not for choosing an independent technician. We document parts used and procedures followed so you have a record if a warranty question ever comes up. Call (346) 666-7165 if you want us to review your warranty status before scheduling.
Every duct run is photographed before and after treatment, and the photo record is delivered to you as part of the standard job documentation. We don’t fog and leave; we apply EPA-registered sanitizer at specified dwell time, agitate where needed, and show you the interior surface condition in the after photos. If you can’t see the difference, we haven’t finished.
Replace the lamp if the ballast tests good and the lamp is past its rated 9,000-hour life - that’s most cases. Replace the full UV100A housing only if the ballast has failed, the mounting bracket in the plenum is corroded, or you’re upgrading from single-lamp to dual-lamp coverage. We meter the ballast output and inspect the plenum penetration before recommending either path, and we put both options in writing with prices.
The $79-$149 offers typically cover a vacuum at the register and a cursory blower-cage wipe, not full negative-pressure extraction with documented before-and-after photography of every duct run. We’ve opened systems after those jobs and found the trunk line still loaded. Our price covers the actual scope, documented, with a written guarantee. We also don’t charge per vent - one flat price per system, agreed before work starts.
UV lamps: every 12 months, metered for actual output rather than calendar-guessed. Electronic air cleaner cells: washed every 3-6 months, replaced when wires corrode or plates warp. TrueCLEAN media: every 90 days during pollen season, every 6 months otherwise. Whole-system duct sanitizing: when the photo record shows buildup, or every 3-5 years for homes with pets, recent construction, or allergy-sensitive occupants. Call (346) 666-7165 and we’ll set an interval based on your actual system and local conditions, not a national brochure.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning Katy at CleanRun Air Duct Cleaning Katy, serving Katy and nearby areas.




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