Fast, Reliable HVAC Cleaning Across South Houston
HVAC cleaning in South Houston typically runs $180-$520 depending on which components need service, and most jobs are completed in a single visit. We’re usually on site within a few hours for South Houston calls, and we carry the tools to handle evaporator coils, blowers, condensers, and full air handler units without scheduling a return trip. Call (866) 347-2063 for a free estimate with upfront pricing.
We’ve been driving to South Houston since 1984, back when this was still mostly post-war brick homes and the Ship Channel expansion was just getting started. Wade Kellerman built this company on showing up when we say we will and never changing the price at the door. That matters here, where a lot of the housing stock dates to the 1950s-1970s and the ductwork tells a story of decades of patch jobs. We know the streets, we know the building types, and we know the particular contamination pattern that comes from living a few miles downwind of the largest petrochemical corridor in North America.
Why Bellows Air Duct & Vent Co. of Texas Is South Houston’s Preferred HVAC Cleaning Company
Bellows has cleaned HVAC systems in South Houston for over 42 years. We’ve worked on the original slab-built homes near Avenue A, the mid-century tracts off Spencer Highway, and the smaller frame houses closer to the 610 Loop. That continuity means something in a town where neighbors still talk about which contractors showed up after Hurricane Harvey and which ones disappeared.
Our technicians are background-checked and uniformed, and they answer to a live person at our office 24 hours a day. Not a voicemail tree, not an app. When you call (866) 347-2063, someone picks up. We don’t bait you with a low coupon and then add charges on site. The price we quote is the price on the invoice, and we put it in writing before we lift a single tool.
Every job gets camera-inspected before and after. You see what we see: the buildup inside your ducts, the condition of your coils, the state of your blower assembly. Then you see it clean. And if something isn’t right, our 90-Day Done Right Promise means we return at no charge with no paperwork to file. Wade Kellerman put that guarantee in place decades ago, and it’s still how we operate.
Our HVAC Cleaning Services in South Houston
Evaporator Coil Cleaning
South Houston’s Gulf Coast humidity keeps evaporator coils working 8-9 months a year, and that constant moisture load breeds mold and biofilm faster than in drier climates. We remove the coil assembly when accessible and clean with foaming agents that break down organic buildup without damaging the aluminum fins. For homes near the Ship Channel, we also check for oily particulate accumulation on the coil face, which restricts airflow more aggressively than standard dust. A typical evaporator coil cleaning in South Houston runs $220-$340.
Blower Cleaning
The blower motor and squirrel cage assembly sit downstream from your filter, which means everything that gets through ends up here. In South Houston’s older homes with gap-prone duct joints, that debris load is heavier than the system was designed to handle. We disassemble the blower housing, clean the blades and motor housing, and inspect the capacitor and bearings while we’re in there. Most blower cleanings in South Houston fall between $180-$280.
Condenser Cleaning
Your outdoor condenser coil takes the brunt of South Houston’s industrial air burden. The same Ship Channel emissions that coat indoor ductwork also deposit fine particulates on exterior fins, reducing heat transfer efficiency and driving up electric bills. We clean with foaming agents and low-pressure water, straighten damaged fins, and clear debris from the cabinet base. Condenser cleaning in South Houston typically costs $160-$240.
Air Handler Cleaning
The air handler is the central station of your HVAC system, and in South Houston’s post-war homes it’s often crammed into a hot attic or a closet with limited access. We clean the full cabinet interior, including the drain pan and condensate line, because standing water in this humidity is a mold colony waiting to happen. For homes with post-Harvey flood history, we pay particular attention to supply plenum conditions, since minor water intrusion frequently colonized these areas with mold that standard surface cleaning won’t reach. Air handler cleaning in South Houston runs $280-$420 depending on access and condition.
Coil Treatment
After cleaning, we apply protective treatments to coils in industrial-adjacent areas like South Houston. These treatments slow future buildup of the oily particulate film that is specific to this corridor, extending the interval between deep cleanings. Coil treatment is typically bundled with evaporator or condenser cleaning for $40-$80 additional.
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.
- 3
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 South Houston
We clean systems built with Rotobrush, Honeywell, and Aprilaire components, and we stock common parts so South Houston customers aren’t waiting on a warehouse shipment. Our Rotobrush contact cleaning systems handle the degreasing step that Ship Channel-adjacent homes require, while our Abatement Technologies HEPA-filtered negative air machines contain debris during the process. If your system uses Aprilaire media filters or Honeywell electronic air cleaners, we service those too, and we can source replacement elements without the markup you’ll see from some national chains.
Common HVAC Cleaning Problems We See in South Houston Homes
- Oily particulate film from Ship Channel emissions. Standard vacuum cleaning won’t touch this. We find a sticky, chemical-smelling residue coating duct walls beneath the dust layer, and it requires degreasing treatment followed by HEPA extraction. Skip this step and the smell returns within weeks.
- Mold in supply plenums from post-Harvey water intrusion. Homes that took on even minor flooding in 2017 frequently developed mold colonies inside ductwork. Surface cleaning blows spores into living spaces. We inspect with cameras, treat affected areas with antimicrobial agents, and verify clearance before closing the system.
- Gap-prone joints in mixed metal-plenum and flex-duct systems. South Houston’s aging housing stock often has patchwork duct configurations where original metal meets later flex-duct additions. Those joints leak, trap debris, and re-contaminate cleaned sections if not sealed during service.
- Overloaded evaporator coils from year-round humidity. Eight or nine months of continuous AC operation in this climate means coils never get a dry season to self-clear. Biofilm buildup restricts airflow and breeds odor. Regular cleaning prevents the compressor strain that leads to replacement.
Pricing for HVAC Cleaning in South Houston, TX
| Service | Typical Range in South Houston |
|---|---|
| Blower Cleaning | $180-$280 |
| Condenser Cleaning | $160-$240 |
| Evaporator Coil Cleaning | $220-$340 |
| Air Handler Cleaning | $280-$420 |
| Coil Treatment (add-on) | $40-$80 |
| Full System HVAC Cleaning | $380-$520 |
What moves you within these ranges? Access difficulty, contamination severity, and whether we find the two-layer Ship Channel film that needs degreasing. We inspect with cameras before quoting, so you see what we see and you know the exact price before we start. No bait coupons, no price changes at the door. We also honor our standing offers: $50 off any repair over $250, a free second opinion on any written estimate, and a permanent 5% senior and veteran discount. Call (866) 347-2063 for your free estimate.
We Also Serve Cities Near South Houston
Our HVAC Cleaning in South Houston team also covers Pasadena, Galena Park, Deer Park, and Jacinto City. Same response standards, same upfront pricing, same camera-verified results. If you’re in one of these neighboring communities and your system needs the degreasing protocol or post-flood assessment we specialize in, we drive there too.
Serving South Houston, TX - Our Local Coverage Area
We’re based in the South Houston 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 South Houston
Your ducts likely contain a fine, oily particulate film from refinery and petrochemical emissions that standard cleaning won’t remove. We apply a degreasing step with Rotobrush contact cleaning followed by HEPA-filtered extraction, which eliminates both the residue and the chemical odor it traps. Call (866) 347-2063 if you smell something industrial even when your system is off.
No. Duct cleaning alone can spread mold spores if colonies are active inside supply plenums. We camera-inspect first, treat affected areas with antimicrobial agents, verify clearance, then proceed with full cleaning. If your South Houston home had any water intrusion in 2017, tell us when you call so we include mold assessment in your free estimate.
The smell persists because standard vacuum cleaning doesn’t remove the Ship Channel’s oily particulate film, which continues to trap odors and attract new debris. Our degreasing protocol breaks down that film so HEPA extraction can remove it completely. Most South Houston customers notice the difference immediately after our two-step treatment. Call (866) 347-2063 to schedule.
Yes, especially where original metal plenum meets patched-in flex duct. Those gap-prone joints trap debris and can re-contaminate cleaned sections if not sealed. We inspect every joint with cameras and seal accessible gaps during cleaning, which is why our single-visit completion rate is high even on 1960s-era systems. Pricing reflects access difficulty, which we confirm before starting.
Yes. Coils in South Houston collect the same oily film as ductwork, which standard foaming cleaners may not fully break down. We use extended-contact degreasing agents on the coil face, followed by protective treatment that slows future buildup. This extends cleaning intervals and maintains airflow efficiency in industrial-adjacent conditions. Coil treatment adds $40-$80 to standard cleaning.
Written by Wade Kellerman, Owner at Bellows Air Duct & Vent Co., serving South Houston since 1984.