Fast, Reliable Air Quality & Sanitizing Across Selma
Air quality and sanitizing service in Selma typically runs $275-$650 for most residential jobs, with same-day appointments available when you call before noon. If you’re noticing a persistent dusty smell, worsening allergies, or visible mold around your vents, the problem usually traces back to ductwork issues specific to Selma’s 2000s-era housing stock. We answer calls live at (866) 347-2063, and most Selma homes we serve are within 25 minutes of our dispatch point.
We’ve worked in Selma long enough to know the difference between a house near the Retama Park corridor and one back in the older sections off Lookout Road. The construction era matters here. Nearly every home in Selma went up between 2000 and 2015, which means a lot of ductwork is hitting its first real maintenance window all at once. That matters for air quality because the building practices of that period, combined with Selma’s brutal attic heat and active construction dust, create problems you won’t find in older San Antonio neighborhoods with different materials and better-settled ground.
Our Air Quality & Sanitizing team treats Selma as a core service area, not an afterthought. We carry the equipment to complete most jobs in a single visit, and we don’t leave until we’ve camera-inspected the results with you.
Why Bellows Air Duct & Vent Co. of Texas Is Selma’s Preferred Air Quality & Sanitizing Company
We’ve been serving South-Central Texas since 1984, and Selma has been on our route for more than two decades. The 78154 zip code is familiar territory. Our technicians know which subdivisions have the unsealed plumbing chases that pull caliche dust, which attic designs trap the worst heat, and how the mountain cedar season hits Selma residents harder than many expect.
Our reputation here is built on showing up when we say and finishing without callbacks. The 90-Day Done Right Promise applies to every Selma job. If something isn’t right, we return and make it right. No paperwork to file, no argument. That’s been our policy for 42 years.
Calls are answered by a live person, 24 hours a day. Not a voicemail tree, not an app. When you call (866) 347-2063, you talk to someone who can dispatch a background-checked, uniformed technician to your Selma home. Most appointments are set for the same day or next day.
We don’t use bait coupons or surprise pricing. The number we give on the phone is the number on the invoice. Before we lift a single tool, you see the full price in writing. That’s the square deal we’ve offered since Wade Kellerman founded this company, and it’s how we still operate today.
Our Air Quality & Sanitizing Services in Selma
Mold Treatment
Selma’s slab-on-grade construction routes flex duct through attics that exceed 140°F for months each summer. That heat degrades duct-board joints and flex connections, creating gaps where humid attic air meets cooler supply air. Condensation forms. Mold follows. We treat affected duct liner with EPA-registered products, seal the source of moisture intrusion, and verify with camera inspection that the contamination is gone. A typical mold treatment in Selma runs $350-$725 depending on linear footage affected.
Bacteria Sanitizing
Homes near the I-35 commercial corridor in Selma pull more than their share of construction dust and organic debris into return systems. That debris hosts bacterial growth you can smell before you see it. We fog the entire duct network with a hospital-grade sanitizer, then mechanically agitate with Rotobrush equipment to dislodge biofilm from duct walls. The process takes three to four hours for a standard Selma tract home. Most bacteria sanitizing jobs in Selma fall between $275 and $495.
Odor Removal
The “dusty smell” that plagues so many Selma homeowners isn’t imagination. It’s fine alkaline caliche dust embedded in duct liner, re-circulating every time the blower engages. In the Estancia subdivision off Loop 1604, we found a three-ton system pulling caliche dust through an unsealed chase into the return. We sealed the penetration with mastic, cleaned the ductwork with a Rotobrush, and installed an Aprilaire 5000 air purifier. The homeowner reported immediate relief from the dusty smell that had plagued them for years. Odor removal with source sealing in Selma typically runs $325-$550.
UV Light Installation
UV-C lights mounted at the coil and in the return plenum kill mold spores and bacteria before they circulate. For Selma homes with chronic moisture issues from attic duct leaks, UV installation is often the most cost-effective long-term solution. We size the lamp to your system’s CFM and install Honeywell or comparable commercial-grade units. A typical UV light installation in Selma costs $450-$875 including the lamp, mounting, and electrical connection. Lamp replacement every two to three years runs about $180.
Air Purifier Install
Whole-home air purifiers address what duct cleaning alone cannot. For Selma’s mountain cedar season, which peaks December through February and loads return-air grilles with ultra-fine pollen, a bypass or media purifier captures particles that pass straight through standard filters. We install Aprilaire and Honeywell units sized to your HVAC capacity. Most whole-home purifier installations in Selma range from $650-$1,200.
Allergen Reduction
Mountain cedar pollen embeds in duct liner and re-releases for months after the season ends. We combine mechanical agitation, negative-air extraction, and targeted sanitizing to remove the reservoir. For Selma homeowners who’ve tried changing filters monthly without relief, this is usually the missing step. Allergen reduction service in Selma typically runs $375-$625 for a complete duct system.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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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 Selma
We specify professional-grade equipment from Rotobrush, Nikro, Honeywell, and Aprilaire. These are the same brands serious HVAC contractors use, not consumer-grade units repurposed for commercial work. For Selma customers, that means parts and filters are available without long lead times. If your Aprilaire purifier needs a new media cartridge or your UV lamp burns out, we stock the replacement and can usually return the same week. We don’t install equipment we can’t stand behind or service promptly.
Common Air Quality & Sanitizing Problems We See in Selma Homes
- Caliche dust infiltration through unsealed chases. Selma’s fast-built 2000s slab construction commonly left gaps around plumbing chases that act as direct conduits from exterior soil into the return-air path. Even homes with windows sealed tight pull fine alkaline dust continuously. The only fix is sealing at the source, then cleaning what accumulated.
- Mountain cedar pollen embedded in duct liner. Selma’s December-through-February cedar season deposits ultra-fine pollen that standard filters miss. Once it sticks to duct liner, it re-releases into living spaces for months. Homeowners often misattribute the resulting congestion and eye irritation to other causes until we show them the camera footage.
- Insulation fibers from heat-degraded flex duct. Attics in Selma regularly exceed 140°F, and the adhesive on flex-duct connections wasn’t designed for that sustained thermal load. Gaps open. Blown-in fiberglass gets pulled directly into supply air. The fibers are visible on camera and explain the “sparkling dust” homeowners notice on dark furniture.
- Mold from attic moisture intrusion. When flex-duct connections fail in Selma’s humid attics, the temperature differential between attic air and conditioned supply air creates condensation on duct board. Mold colonizes the liner within one to two seasons. By the time it’s visible at vents, the problem is usually widespread in the attic trunk.
Pricing for Air Quality & Sanitizing in Selma, TX
Here’s what honest pricing looks like for Selma’s market. These are the ranges we quote before work begins. The number on the phone is the number on the invoice.
| Service | Typical Range in Selma |
|---|---|
| Bacteria Sanitizing (whole system) | $275 - $495 |
| Mold Treatment (localized) | $350 - $725 |
| Odor Removal with Source Sealing | $325 - $550 |
| UV Light Installation | $450 - $875 |
| Whole-Home Air Purifier Install | $650 - $1,200 |
| Allergen Reduction (complete duct system) | $375 - $625 |
What moves a job toward the higher end: longer linear footage of ductwork, multiple HVAC zones, extensive mold requiring multiple treatments, or difficult attic access. What keeps it lower: single-zone systems, straightforward access, and maintenance that hasn’t been deferred. Every estimate is free, and we show you camera footage of your actual ductwork before quoting. Call (866) 347-2063 for an exact number.
Standing offers for Selma homeowners: $50 off any repair over $250, free second opinion on any written estimate, $89 seasonal tune-up, and a permanent 5% senior and veteran discount.
We Also Serve Cities Near Selma
Our service radius covers the full Northeast San Antonio metro area. We regularly dispatch to Selma, Schertz, Universal City, Cibolo, and Converse from the same pool of technicians, which means neighboring cities get the same response standards and the same live-answer phone line. If you’re in Schertz or Cibolo and found this page, the pricing and availability are identical. Call (866) 347-2063 and we’ll confirm your address and schedule.
Serving Selma, TX - Our Local Coverage Area
We’re based in the Selma 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 Selma
Unsealed plumbing chases in Selma’s 2000s-era slab construction pull fine caliche dust directly from the exterior or crawl space into your return-air path, bypassing the filter entirely. We see this in nearly every subdivision near the I-35 corridor, even in homes where the windows haven’t been opened in years. Sealing the penetrations with mastic, then cleaning the ductwork, eliminates the source. Call (866) 347-2063 and we’ll camera-inspect your system to confirm whether this is your problem.
Yes. A whole-home media or electronic air purifier captures the ultra-fine mountain cedar pollen that standard 1-inch filters miss, and it does so at every register rather than just at the return. For Selma homeowners who suffer December through February, we typically recommend an Aprilaire or Honeywell unit matched to your system’s CFM. Most installations are completed in one visit. Call (866) 347-2063 for sizing and pricing specific to your HVAC unit.
Every five to seven years for typical Selma tract homes, and every three to four years if you have pets, allergies, or live near active construction zones like the I-35/Loop 1604 corridor. The caliche dust and pollen load here is heavier than in older, more established neighborhoods. If your home is hitting the 10-20 year mark and has never had ducts cleaned, you’re likely overdue. We offer free camera inspections to assess condition without commitment.
If you’ve had flex-duct connections fail in your Selma attic, mold treatment is strongly advisable. The 140°F+ attic heat plus humidity from intrusion points creates ideal conditions for duct-board mold that spreads through your supply air. We treat with EPA-registered products, seal the leak source, and verify with before-and-after camera inspection. A typical post-leak mold treatment in Selma runs $350-$725. Call (866) 347-2063 to schedule an assessment.
Yes. We install UV-C lamps in the return plenum and at the evaporator coil of standard residential systems common in Selma’s 2000s-2010s housing stock. The installation takes two to three hours, requires a dedicated electrical connection, and is compatible with most Trane, Carrier, and Lennox units we see in local subdivisions. Cost is $450-$875. UV lamps reduce mold and bacterial growth on wet coil surfaces, which is particularly valuable in Selma’s long cooling season. Call (866) 347-2063 to check compatibility with your specific model.
Ready to solve the air quality problem in your Selma home? Call Bellows Air Duct & Vent Co. of Texas at (866) 347-2063 for a free estimate. We’ll camera-inspect your ductwork, show you exactly what we find, and give you one honest price before any work begins. Same-day appointments are usually available when you call before noon. We stand behind every job with our 90-Day Done Right Promise - no paperwork, no arguing, just fixed.
Written by Wade Kellerman, Owner at Bellows Air Duct & Vent Co. of Texas, serving Selma and the Northeast San Antonio metro since 1984.