Fast, Reliable Air Quality & Sanitizing Across Hondo
Air quality and sanitizing in Hondo, TX typically costs between $280 and $650 for most residential jobs, and our Air Quality & Sanitizing team can usually be there same day or next day. We’re familiar with the ranch-style homes along 16th Street, the acreage properties off FM 462, and the older subdivisions near the Medina County courthouse - places where caliche dust, not city smog, is what clogs your ducts. If your vents are blowing white dust or your house smells sour every time the AC kicks on, call us at (866) 347-2063. Wade Kellerman and our crew have been handling Hondo’s unique air-quality problems for over 42 years.
Why Bellows Air Duct & Vent Co. of Texas Is Hondo’s Preferred Air Quality & Sanitizing Company
We’ve built our reputation in Medina County by showing homeowners exactly what’s in their ducts before we touch a tool. Our camera inspection goes in first - every time - so you see the caliche buildup, the rodent debris, the mold on the coil with your own eyes. No claims, just footage.
Hondo customers know we’re not driving from San Antonio with a coupon and a sales pitch. We’re Texas-based, and we understand that a ranch home on 5 acres with a caliche driveway has different problems than a suburban tract house. Our background-checked, uniformed technicians arrive when we say they will, and a live person answers our phone 24 hours a day - not a voicemail tree, not an app.
Our 90-Day Done Right Promise applies to every job in the 78861 ZIP code and surrounding Medina County. If the dust returns or the smell persists, we come back and make it right. No paperwork to file, no argument. That’s been our way since 1984.
Our Air Quality & Sanitizing Services in Hondo
Allergen Reduction
Hondo’s winter cedar fever can flatten a household for weeks. The Ashe juniper pollen that blankets the Edwards Plateau foothills north of town doesn’t stay outside - it gets drawn into return registers and sticks to duct walls already coated with caliche dust. We use HEPA-contained negative air machines and Rotobrush agitation to strip both the mineral and biological layers from your system, then apply an EPA-registered treatment to suppress what remains. For homes near cotton or sorghum operations, this dual-layer approach is the difference between temporary relief and actually breathing easier.

Odor Removal
That sour, dusty smell when your AC cycles? In Hondo, it’s usually caliche dust mixed with organic material - rodent droppings, decaying insects, or mold on a damp coil. Standard cleaning moves the dust around; we remove it and treat the source. Our process includes camera-verified duct scrubbing, coil and pan treatment, and application of a non-mask sanitizer that breaks down odor compounds at the molecular level. We recently sanitized the duct system in a ranch-style home on 16th Street near the Medina County courthouse. The homeowner reported persistent dust and a sour smell - we found caliche dust layered deep in the flex duct, mixed with rodent droppings from a roof rat entry point. After negative air scrubbing with a Rotobrush and applying an EPA-registered sanitizer, we sealed the attic penetration and installed a Honeywell UV light on the coil to suppress biological growth.

UV Light Installation
UV lights mounted on your evaporator coil don’t filter air - they keep the coil and drain pan from becoming a breeding ground for mold and bacteria. In Hondo, where HVAC systems run nearly nonstop from May through September, that coil stays wet for months. A Honeywell or Aprilaire UV-C lamp interrupts the DNA of microorganisms before they colonize, which means less biological load blowing through your ducts and less frequent sanitizing. We size the lamp to your air handler and verify placement with our camera. Most installs take under two hours.

Mold Treatment
Mold in Hondo ducts usually starts at the coil or in unsealed attic penetrations where humid outside air meets dust-coated surfaces. We don’t paint over it with chemical fog and call it done. Our mold treatment includes mechanical removal of visible growth, HEPA vacuuming of spore-laden dust, and application of an EPA-registered fungistatic coating to treated surfaces. Then we find and seal the moisture source. Without that last step, the mold returns. We warranty our mold treatment as part of our 90-Day Done Right Promise.

Bacteria Sanitizing
Homes with roof rat or mouse history need more than cleaning - they need sanitizing. We apply an EPA-registered antimicrobial to all accessible duct surfaces, boots, and the air handler interior, targeting the bacteria left behind by rodent waste. Our technicians wear proper PPE and contain the work zone to prevent cross-contamination. This is standard protocol for us, not an upsell.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Hondo
We carry professional-grade equipment from Rotobrush, Nikro, and Honeywell - the same brands serious HVAC contractors specify for commercial jobs. For Hondo homeowners, that means we don’t need to order parts from San Antonio and make you wait. Our vans stock UV lamps, HEPA filters, and sanitizing agents sized for the residential systems common in 1950s-to-1980s ranch homes. If your air purifier or UV system needs service, we can usually fix it same visit.
Common Air Quality & Sanitizing Problems We See in Hondo Homes
- White dust re-suspending after filter changes. Caliche dust is so fine that standard filter changes alone fail to capture it. Without thorough duct scrubbing and sanitizing, the mineral dust re-suspends every time the HVAC cycles, worsening respiratory irritation. We see this constantly in homes near unpaved roads or active fields.
- Unsealed duct penetrations on acreage properties. Older homes with original ductwork on acreage lots often have unsealed crawlspace or attic penetrations where windblown caliche and crop dust enter directly, rendering cleaning ineffective if those gaps aren’t sealed first. Our camera inspection finds these before we start.
- Cedar fever compounding mineral dust. Winter cold snaps trigger cedar pollen events across the Edwards Plateau foothills. Sanitizing without addressing the biological allergen layer leaves homeowners still symptomatic despite cleaner-looking ducts. We treat both.
- Rodent intrusion in flex duct. Technicians working older homes on the rural outskirts of Hondo frequently find flex duct that has been patched with foil tape over animal intrusion points. Roof rats and mice sheltering from the heat enter through poorly sealed crawlspace or attic duct connections, leaving debris and dander that compounds the caliche dust load and makes sanitation, not just cleaning, the real selling point for local homeowners.
Pricing for Air Quality & Sanitizing in Hondo, TX
Most Hondo homeowners pay between $280 and $650 for a complete air quality and sanitizing job, depending on system size and contamination level. Here’s how typical projects break down:
| Service | Typical Range in Hondo |
|---|---|
| Duct sanitizing (standard residential system) | $280 - $420 |
| Duct sanitizing with mold or rodent treatment | $380 - $550 |
| UV light installation (single lamp) | $320 - $480 |
| Full air quality package: scrub, seal, sanitize, UV | $520 - $650 |
Factors that push costs higher: extensive rodent damage requiring duct repair, multiple HVAC zones, or hard-to-access attic systems common in 1960s-era ranches. We show you the exact price before we start - every time. No bait coupons, no changes at the door. Call (866) 347-2063 for a free estimate. We also honor our permanent 5% Senior and Veteran discount, and we offer $50 off any repair over $250.
We Also Serve Cities Near Hondo
Our technicians regularly work in Hondo and surrounding communities including Lakehills, Lackland Air Force Base, Helotes, and Leon Valley. Same standards, same camera verification, same upfront pricing - no matter which Medina County or northwest Bexar County address we’re driving to.
Serving Hondo, TX - Our Local Coverage Area
We’re based in the Hondo area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Air Quality & Sanitizing in Hondo
That white dust is caliche - fine calcium-carbonate mineral dust from unpaved roads and ranch tracks that’s unique to our area. Standard filters can’t catch particles this fine, and once it’s lodged in your ductwork, it re-suspends every time your HVAC cycles. We remove it with HEPA-contained agitation and seal the entry points so it stops coming back. Call (866) 347-2063 and we’ll show you on camera exactly what’s in there - estimates are free.
Yes, but they work differently than most people think. UV lights don’t filter dust - they prevent mold and bacteria from growing on your wet evaporator coil, which is where Hondo’s constant summer AC runtime creates ideal breeding conditions. Less biological growth means less musty odor and fewer spores circulating with the caliche dust. We install Honeywell UV-C lamps sized to your system and verify placement with our camera. Most Hondo homeowners notice cleaner-smelling air within a week.
Probably the entry points. Homes on caliche driveways or acreage lots often have unsealed gaps around duct penetrations, crawlspace vents, or older return air boxes that act as direct conduits for windblown dust. If those aren’t sealed, cleaning is temporary. Our camera inspection finds these gaps before we sanitize, and we include sealing in our full air quality package. That sour, persistent smell usually disappears once we stop the inflow and treat what’s already inside.
Yes, and we take specific precautions. Our technicians wear proper PPE, contain the work zone, and apply an EPA-registered antimicrobial to all surfaces contacted by rodent waste. We also inspect flex duct for damage - foil tape patches are common in older Hondo homes and usually mean the duct itself needs replacement, not just cleaning. We tell you what we find before we proceed. No surprises on the bill.
Most single-story ranch homes in Hondo take four to six hours for a complete job: camera inspection, HEPA scrubbing, penetration sealing, sanitizing, and final camera verification. Larger homes or those with multiple HVAC zones may run longer. We complete most jobs in a single visit, and we don’t leave until you’ve seen the after footage. Call (866) 347-2063 to schedule - we answer live 24 hours a day.
Written by Wade Kellerman, Owner at Bellows Air Duct & Vent Co. of Texas, serving Hondo since 1984.