Fast, Reliable HVAC Cleaning Across Selma
Most Selma homeowners we talk to didn’t think much about their HVAC system until the dust got impossible to ignore. If you’re seeing brown buildup on return grilles in a home off Retama Parkway or near the I-35 corridor, you’re not imagining it - and you’re not alone. We’re Bellows Air Duct & Vent Co., and we’ve been cleaning HVAC systems in Selma’s 78154 zip code and surrounding neighborhoods for over 42 years. Our technicians are usually on-site in Selma within the same day you call, because we keep crews routed through the Northeast San Antonio metro daily. Call (866) 347-2063 for a free estimate.
Why Bellows Air Duct & Vent Co. of Texas Is Selma’s Preferred HVAC Cleaning Company
We’ve worked in enough Selma living rooms to know the difference between a house that feels clean and one that actually is. Our reputation here was built one job at a time - homeowners who called us back because the dust stayed gone, not because we left a coupon on the fridge.
Our reviews from Selma customers consistently mention two things: the camera footage we show them before and after, and the fact that the price we quoted on the phone matched the invoice exactly. No bait, no upsell at the door.
Response time matters in Selma’s heat. When your evaporator coil is choked with pollen and your blower’s laboring, waiting three days isn’t an option. We answer calls with a live person 24 hours a day, and most Selma appointments are scheduled same-day or next-morning.
What separates us from operators who blow through town with a coupon mailer? We know Selma’s housing stock. The 2000s-2010s tract homes near Loop 1604, the flex-duct runs through those brutal attics, the caliche dust that finds its way in no matter how tight you keep the windows. That local knowledge means we diagnose faster and fix it right - backed by our 90-Day Done Right Promise in writing.
Our HVAC Cleaning Services in Selma
Evaporator Coil Cleaning
Your evaporator coil is where the real cooling happens - and where the real clogging happens too. In Selma, coils typically collect a paste of mountain cedar pollen, caliche dust, and biological growth from nine months of continuous runtime. A dirty coil can’t transfer heat efficiently, so your system runs longer, your bills climb, and your compressor takes the punishment. We use foaming cleaners and low-pressure rinses that remove buildup without damaging delicate fins. Most Selma evaporator coil cleanings run $180-$340 and are completed in a single visit.

Air Handler Cleaning
The air handler is the heart of your forced-air system, and in Selma’s slab-on-grade homes, it’s often installed in a closet or garage where construction dust and humidity converge. We clean the blower assembly, housing, and secondary drain pan - the components that directly affect airflow and moisture management. A clean air handler moves more air with less energy and reduces the strain that leads to premature motor failure. For Selma homes with air handlers in unconditioned spaces, this service is particularly critical.

Blower Cleaning
Your blower wheel is a precision-balanced fan that moves hundreds of cubic feet of air per minute. When dust accumulates on the blades, it throws off that balance and reduces airflow by 15% or more. In Selma, we see blower wheels caked with the same fine alkaline dust that coats return grilles. We remove the assembly, clean it thoroughly, and verify amp draw before reassembly. This isn’t a surface wipe - it’s a full disassembly and restoration.

Condenser Cleaning
Your outdoor condenser coil rejects the heat your indoor coil absorbed. When it’s clogged with cottonwood fluff, grass clippings, or the construction debris that blows through Selma’s active development zones, head pressure rises and efficiency plummets. We fin-comb damaged coils, apply foaming cleaner, and rinse with controlled water pressure. A clean condenser in Selma’s climate can lower your cooling costs measurably during those nine-month run cycles.

What happens when you call
- 1
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 clean systems built with Honeywell, Aprilaire, and Rotobrush equipment - brands that serious HVAC contractors specify for a reason. Our trucks carry the parts and cleaning agents matched to these systems, so Selma homeowners aren’t waiting on a parts run to Schertz while their house heats up. When we recommend a coil treatment or sanitizer, it’s the same product line your equipment manufacturer approves, not a generic substitute. That compatibility matters for warranty coverage and for results that last.
Common HVAC Cleaning Problems We See in Selma Homes
- Unsealed plumbing chases pull caliche dust into returns. The 2000s-2010s slab construction throughout Selma commonly left gaps around plumbing penetrations that act as direct conduits from exterior soil into your return-air path. Even with windows sealed, fine alkaline dust accumulates in your ductwork - a problem our technicians identify with camera inspection and seal with mastic during cleaning.
- Attic heat exceeding 140°F degrades flex-duct connections. Selma’s unconditioned attics cook flex-duct tape and degrade duct-board joints over 10-15 years. We regularly find separated joints pulling fiberglass insulation directly into supply air. Our cleaning includes inspection of accessible connections, and we’ll show you what the camera sees.
- Mountain cedar pollen embeds in duct liner December through February. Selma’s Ashe juniper pollen season loads return-air systems with ultra-fine particles that standard filters miss. This pollen embeds in duct liner and recirculates for months, causing allergy-like symptoms that homeowners often blame on other causes. Deep duct cleaning removes this reservoir.
- Continuous cooling cycles accelerate coil fouling. Nine months of annual runtime in Selma means coils accumulate debris faster than in milder climates. Without periodic professional cleaning, that buildup becomes a thermal insulator that forces your compressor to work harder and fail sooner.
Pricing for HVAC Cleaning in Selma, TX
We don’t do bait pricing. The number you hear on the phone is the number on the invoice - that’s been our policy since 1984.
For Selma’s market, here’s what typical HVAC cleaning services run:
- Evaporator coil cleaning: $180-$340
- Blower cleaning (as standalone service): $150-$280
- Condenser cleaning: $120-$220
- Air handler cleaning: $200-$360
- Full system cleaning (coil, blower, condenser, air handler): $450-$750
What moves you within these ranges? Accessibility matters - a coil behind a sealed panel in a tight attic takes longer than one in an open garage closet. Contamination level matters too; a system choked with years of caliche dust requires more intensive cleaning than a well-maintained unit. We inspect with a camera before quoting, so you see what we see. Estimates are free. Call (866) 347-2063.
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 crews work daily throughout the Northeast San Antonio metro, including Selma‘s neighbors in Schertz, Universal City, Cibolo, and Converse. Whether you’re in a 1990s build near Randolph Air Force Base or a new subdivision outside Cibolo, the same Bellows standards apply: camera-verified results, upfront pricing, and our 90-Day Done Right Promise. If you’re searching for HVAC Cleaning service from a company that answers the phone with a live person, we’re already nearby.
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 - HVAC Cleaning in Selma
Unsealed plumbing chase penetrations in your slab foundation are pulling fine alkaline caliche dust directly into the return-air path. This was common in Selma’s fast-built 2000s construction, and it happens regardless of whether your windows stay closed. We identify these entry points with camera inspection and seal them with mastic during duct cleaning. Call (866) 347-2063 for a free estimate - we’ll show you exactly where the dust is coming from.
Every two to three years for most Selma homes, but annually if someone in your household has severe mountain cedar sensitivity. The December-February pollen season loads duct liner with ultra-fine particles that standard filters can’t capture, and those particles recirculate for months after the season ends. More frequent cleaning removes this reservoir before it compounds. We also evaluate your filtration setup during service. Call (866) 347-2063 to schedule.
Yes - they’re different services addressing different problems. Duct cleaning removes debris from your distribution system; evaporator coil cleaning removes buildup from the heat-exchange surface where cooling actually happens. In Selma’s nine-month cooling season, coils foul faster than ducts. A clean duct system with a dirty coil still delivers weak airflow and high bills. We inspect both and recommend honestly, never bundling services you don’t need.
Selma’s attics regularly exceed 140°F, and that heat degrades flex-duct tape adhesive and weakens duct-board joints over 10-15 years. We commonly find separated connections that pull attic insulation into your supply air. During our HVAC cleaning service, we camera-inspect accessible ductwork and show you any separation or degradation. Sealing compromised joints during cleaning prevents continued contamination. The inspection is included; you’ll see what we see before any additional work is discussed.
We clean with Rotobrush contact-vacuum systems for ductwork, and we specify Honeywell and Aprilaire filtration and treatment products where upgrades make sense. Our coil cleaning agents are manufacturer-approved for the brands we encounter most in Selma homes. We don’t use generic substitutes that could void your equipment warranty. If you have questions about compatibility with your specific system, call (866) 347-2063 - we’ll confirm before we schedule.
Ready to get your Selma home’s HVAC system actually clean? Call Bellows Air Duct & Vent Co. at (866) 347-2063. We’ll answer with a live person, schedule your free estimate, and show you camera-verified results - backed by our 90-Day Done Right Promise in writing.
Written by Wade Kellerman, Owner at Bellows Air Duct & Vent Co., serving Selma since 1984.