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.
Guardsman Air Quality & Sanitizing in The Woodlands: What to Know First
We provide independent Guardsman air quality and sanitizing service in The Woodlands, typically completing scheduled jobs within one business day of your call. Most Guardsman UV light installations, air purifier setups, and full-system sanitizing jobs in this market run between $340 and $890 depending on whether we’re treating a single air handler or a zoned system with multiple returns. Every job starts with a written price before we touch anything, and every duct run is photographed before and after.
This page is for Guardsman equipment owners in The Woodlands who want to know what sanitizing actually involves, why their system may not be delivering the air quality the brochure promised, and what a documented job looks like from start to finish. If you own a Guardsman air purifier, UV-C lamp, or whole-home sanitizing system and suspect it’s underperforming, call us at (346) 248-1474. We’ll put a written estimate next to any competitor’s quote, free of charge.
How Guardsman Products Fail - and How We Fix Them
- Guardsman UV-C Series lamps lose output intensity after 9,000 hours. The lamp still glows, but the 254-nanometer germicidal output drops below effective levels. Homeowners in The Woodlands notice musty odors returning even though the indicator light looks fine. We measure actual UV output with a radiometer, not a visual check, and replace with Guardsman-specified lamps or verified aftermarket equivalents that match the original wattage and base type.
- Guardsman PureAir 2000 electronic air cleaners suffer from ionizer wire fouling in high-humidity conditions. The Woodlands sits in a subtropical zone where indoor relative humidity regularly exceeds 60 percent for months at a stretch. Moisture plus particulate matter coats the tungsten wires, reducing ionization efficiency and causing the power supply to work harder until it fails. We remove the cell assembly, clean with manufacturer-approved solution, test ionizer current draw, and document the before-and-after microamp reading.
- Guardsman APCO-X whole-home air purifiers develop degraded carbon cells. The photocatalytic oxidation matrix breaks down VOCs and odors, but the activated carbon blend saturates faster in homes with recent construction or renovation, common in newer The Woodlands subdivisions like Creekside Park. We test cell integrity with a VOC challenge, replace only the degraded component if the UV reactor is still sound, and show you the differential on our meter.
- Guardsman REME HALO in-duct units experience failed cell coatings from Gulf Coast salt air intrusion. The hydro-peroxide generator depends on a hydrated metallic surface. When coastal air infiltrates attic ductwork in homes near The Woodlands Waterway or east of I-45, the coating degrades unevenly. We inspect the cell under magnification, replace if the active surface is compromised, and seal the duct penetration points to prevent recurrence.
- Guardsman media air cleaner cabinets leak bypass air due to filter gasket compression set. The 1-inch and 5-inch filter racks in Guardsman F100 and F200 series cabinets use foam gaskets that harden after three to four Texas summers. Air goes around the filter instead of through it, loading the evaporator coil and ductwork with debris. We replace the gasket with closed-cell silicone stock rated for 180°F continuous, verify zero bypass with a smoke pencil, and photograph the seal at each corner.
Our Guardsman Air Quality & Sanitizing Process

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System inventory and written scope. We record every Guardsman model number, serial number, and installation date from the equipment tags. This tells us which OEM parts apply and whether any components are still under Guardsman’s original warranty. You get a written scope and price before we proceed.
- 2
Photo documentation of current conditions. We run our inspection camera through the plenum and each duct run, photographing the evaporator coil, filter rack, and any UV or PCO cell mounting locations. The before photo does the talking. Everything else is just paperwork.
- 3
Component testing with logged results. UV output in microwatts per square centimeter. Ionizer current in microamps. Airflow across the media filter in feet per minute. We log each reading to the job record so you have evidence, not opinions.
- 4
Service or replacement with OEM or verified aftermarket parts. We stock Guardsman-specified lamps, cells, and gaskets. When aftermarket equivalents meet the original specification and cost less, we show you both options in writing. Haven Standard Clause 1: the price is fixed before work starts.
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Post-service verification and photo record delivery. We retest every parameter, run the system through a complete cycle, and photograph the installed components. The full photo record, test log, and written 365-Day Done Right Promise are delivered before we leave.
Before
AfterWhat Guardsman Air Quality & Sanitizing Costs in The Woodlands
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Guardsman UV-C lamp replacement (single lamp) | $180 - $290 | Lamp wattage; accessibility of mounting location; whether the ballast also needs replacement |
| Guardsman electronic air cleaner cell cleaning and test | $240 - $380 | Number of cells; degree of fouling; power supply test required |
| Guardsman APCO-X/REME HALO cell replacement | $340 - $560 | Cell type; whether UV reactor is reusable; duct modification needed |
| Whole-system sanitizing with Guardsman components (per air handler) | $450 - $890 | System tonnage; number of returns; presence of flex duct vs. hard pipe |
| Filter rack gasket replacement, Guardsman F100/F200 | $160 - $240 | Cabinet size; accessibility; smoke-pencil verification time |
These ranges reflect what we have actually written on invoices for Guardsman jobs in The Woodlands over the past 24 months, including homes in Panther Creek, Sterling Ridge, and Indian Springs. Every price is agreed in writing before work begins. No per-vent add-ons. No coupon bait-and-switch. Call (346) 248-1474 for a free estimate with your model numbers ready.
Why The Woodlands Homeowners Call CleanRun Air Duct Cleaning The Woodlands for Guardsman Work

We are an independent Guardsman service provider, not a dealer or authorized representative. That means we work on what you actually own without pushing a replacement sale. Our technicians carry Guardsman, Lennox, Trane, and Carrier parts on the truck, so a multi-brand household gets diagnosed correctly the first time.
Haven Standard Clause 3: Verified Crews. Every technician is background-checked, uniformed, and identified by name before arrival. Haven Standard Clause 1: Written Price Before Any Work Starts. The 365-Day Done Right Promise is backed in writing on every job, not stated and forgotten. Since 2013, we have served over 52,000 homes with a documented photo record on every visit. Tomas Reyes, our owner, grew up in Queens and trained at New York City College of Technology before spending two decades learning what Gulf Coast humidity does to residential ductwork. He and his crew have found compacted insulation, disconnected joints, and debris loads in The Woodlands homes that most owners never knew were there, particularly in older Panther Creek installations from the late 1980s.
FAQs
No. Guardsman’s warranty covers defects in materials and workmanship, not who performs routine maintenance or sanitizing. We document every service with photos and parts records, which actually supports any future warranty claim you might file with Guardsman directly. If a component fails under warranty, we can flag it and point you toward the OEM claim process. Call (346) 248-1474 if you have a specific warranty concern.
Replace when the cabinet or core reactor is structurally compromised, when repair parts are obsolete, or when the cost of restoration exceeds 60 percent of a new equivalent installed. Sanitize and restore when the mechanical components are sound but contaminated with mold, bacteria, or accumulated biofilm. We test and photograph so you can see which condition applies. Call for a free second opinion on any replacement quote.
For UV lamps, yes, the spectral output specification matters and generic lamps often miss it. For gaskets, hardware, and some filter media, quality aftermarket equivalents that meet the same physical specification perform identically at lower cost. We stock both, show you both in writing, and let you decide. Haven Standard Clause 1 applies either way: the price is fixed before work starts.
UV lamps every 9,000 operating hours, typically 12 to 14 months in a continuously running system. Electronic air cleaner cells cleaned annually before the cooling season, when humidity starts climbing. Whole-home PCO or hydro-peroxide cells inspected every two years, replaced when challenge testing shows degradation. The Woodlands climate accelerates wear on anything moisture-sensitive, so we log each component’s install date and call you when service is due.
You receive a documented photo record of every duct run, plenum, and component before and after service, plus logged test readings where applicable. This is standard on every CleanRun job, not an upgrade. If a technician cannot show you what was inside your system, you are paying for vacuum noise. Call (346) 248-1474 to schedule a job where the documentation comes with the work.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning The Woodlands at CleanRun Air Duct Cleaning The Woodlands, serving The Woodlands and nearby areas.




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