Fast, Reliable HVAC Cleaning Across Alamo Heights
We’re Bellows Air Duct & Vent Co. of Texas, and we’ve been driving out to Alamo Heights since 1984. If you live in the ’09’ - whether that’s a 1940s Tudor off Broadway, a mid-century ranch near the Quarry, or a Colonial revival along North New Braunfels Avenue - you know your home wasn’t built for central air. The ductwork was threaded through later, squeezed into wall cavities and attic spaces never meant to carry it. That retrofit history creates problems discount operators miss entirely. We don’t miss them. Our HVAC Cleaning team carries camera equipment on every truck, and we’ll show you exactly what’s inside your system before we quote a price. Call (866) 347-2063. We’ll answer live, day or night.
Why Bellows Air Duct & Vent Co. of Texas Is Alamo Heights’s Preferred HVAC Cleaning Company
Forty-two years in this trade means we’ve cleaned systems in homes that have changed hands four times since we first serviced them. Alamo Heights homeowners call us back because we return until the job is right - our 90-Day Done Right Promise is stamped on every invoice, no paperwork required if something needs fixing.
We answer the phone with a live person, 24 hours a day. Not an app. Not a voicemail tree. A real person who can dispatch a background-checked, uniformed technician to your door. Most jobs finish in a single visit. We show you camera footage before and after, so you see what we see.
Our pricing is disclosed upfront, before a tool leaves the truck. The number you hear on the phone matches the number on the invoice. No bait coupons, no scare tactics, no price changes at your door. That’s been our founding promise since Wade Kellerman started this company, and it’s how we still operate.
Our HVAC Cleaning Services in Alamo Heights
Air Handler Cleaning
In Alamo Heights’s retrofitted systems, the air handler is often crammed into a converted closet or attic space that was never designed for it. Dust, pollen, and degraded insulation collect on the blower wheel and housing, cutting airflow by 20% or more in the homes we service. We disassemble the blower assembly, clean every blade and surface, and run a camera through the plenum to check for leaks at the air handler connection. This is where many of the disconnects happen in older Alamo Heights homes - the joint between the air handler and the main trunk line works loose from decades of thermal cycling.
Evaporator Coil Cleaning
San Antonio’s humidity and the ’09’s heavy air conditioning load mean evaporator coils in Alamo Heights work harder than most. A dirty coil can’t transfer heat efficiently, so your system runs longer, costs more, and still leaves rooms sticky. We access the coil, apply foaming cleaner, and rinse with controlled pressure - never the high-pressure washing that damages delicate fins. Last winter, we cleaned an HVAC system in a 1954 Tudor revival home on North New Braunfels Avenue. The old galvanized duct runs had multiple tan strata of compacted mountain cedar pollen, and a disconnected joint behind the air handler was pulling attic dust directly into the supply. We sealed all accessible joints, cleaned the evaporator coil with a Rotobrush, and replaced a degraded flex-duct section. The homeowner called back in March to say her cedar-season symptoms were the mildest in twenty years.
Coil Treatment
After cleaning, we offer a coil treatment that inhibits microbial growth and helps shed future dust load. In Alamo Heights, where Ashe juniper pollen infiltrates through leaky ducts and settles on wet coil surfaces, this treatment extends the clean. It’s not a cure-all, but it buys you time between services, especially if you’re still planning a full duct-sealing project down the road.
Blower Cleaning
The blower wheel moves every cubic foot of air in your home. When it’s caked with cedar pollen and attic dust, it can’t push design airflow. We remove the wheel, clean it off-site if needed, and balance it before reinstalling. In Alamo Heights homes with multiple HVAC upgrades over the decades, we often find blowers mismatched to duct systems - oversized for the restricted airflow available. We note this in our report so you have the information for future equipment decisions.
Condenser Cleaning
Your outdoor unit sits in the Texas sun, drawing air through fins that clog with cottonwood fluff, grass clippings, and the fine caliche dust that blows through Bexar County. We straighten fins, clean coils, and check refrigerant levels. A clean condenser in Alamo Heights’s 100°F-plus summers can mean the difference between a system that keeps up and one that runs continuously without catching up.
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 Alamo Heights
We clean and service equipment from every major manufacturer, and we carry Rotobrush and Nikro equipment on every truck for the mechanical work. For air quality upgrades, we stock Honeywell and Aprilaire media filters and UV systems - the same brands serious HVAC contractors specify for new construction. If your Alamo Heights home needs a part we don’t have, our Houston warehouse ships same-day to our San Antonio-area technicians. Most repairs finish without a return trip.
Common HVAC Cleaning Problems We See in Alamo Heights Homes
- Seasonal mountain cedar pollen accumulation in leaky retrofitted ducts. The fine pollen from Hill Country Ashe juniper infiltrates through unsealed joints and builds in layered, tan strata inside original 1950s-60s galvanized duct runs. Each winter adds a new layer. The result is reduced airflow, aggravated allergies, and a system that works harder for less comfort.
- Thermal expansion in 150°F attic temperatures loosens duct joints over time. San Antonio’s summers push Alamo Heights attic spaces past 150°F. That repeated heating and cooling cycles flex-duct liner and metal joints, causing disconnects that pull hot attic air directly into your supply stream. Your system runs longer, your bills climb, and the rooms farthest from the air handler never cool properly.
- Mixed flex-and-metal duct systems from multiple HVAC upgrades create mismatched sealing. Homes that have cycled through two or three equipment replacements often have orphaned branches, incompatible connectors, and minimal sealing at new-to-old transitions. Every joint is a leak point, and in Alamo Heights’s older homes, there are often dozens of them.
- Undersized chases and restricted airflow from retrofit design compromises. When ductwork is threaded through existing wall cavities rather than purpose-built, the turns are tight and the runs are long. That static pressure load strains blowers and reduces delivery to the rooms that need it most.
Pricing for HVAC Cleaning in Alamo Heights, TX
A typical evaporator coil cleaning in Alamo Heights runs $280-$420, depending on accessibility and contamination level. Blower cleaning is usually $180-$290. Full air handler cleaning, including blower removal and plenum inspection, ranges from $340-$520. Condenser cleaning starts around $150 for a standard residential unit. Coil treatment, applied after cleaning, adds $85-$140.
What moves the price: how cramped the installation space is, whether we need to cut access panels in finished surfaces, and the condition of connected ductwork that may need sealing or repair. We inspect with a camera before quoting, so you see what we see. Estimates are free. Call (866) 347-2063.
| Service | Typical Range in Alamo Heights |
|---|---|
| Evaporator Coil Cleaning | $280 - $420 |
| Blower Cleaning | $180 - $290 |
| Air Handler Cleaning (full) | $340 - $520 |
| Condenser Cleaning | $150 - $240 |
| Coil Treatment (add-on) | $85 - $140 |
We Also Serve Cities Near Alamo Heights
Our technicians work throughout the near-northeast corridor, including HVAC Cleaning in Alamo Heights proper plus Terrell Hills, Windcrest, Kirby, and the broader San Antonio metro. Same live-answer dispatch, same camera inspection, same upfront pricing. If you’re unsure whether we cover your address, call and we’ll confirm while you’re on the line.
Serving Alamo Heights, TX - Our Local Coverage Area
We’re based in the Alamo Heights 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 Alamo Heights
That tan, fibrous material is compacted Ashe juniper pollen - mountain cedar - that has infiltrated through leaky duct joints over many seasons. Alamo Heights’s retrofitted duct systems pull unconditioned attic air during the HVAC’s negative-pressure draw, and that attic air carries heavy pollen loads from December through January. Each year adds a new stratum. Call (866) 347-2063 and we’ll show you on camera exactly what’s in your system - estimates are free.
Sealing accessible joints is almost always worth doing first, and often sufficient. Full duct replacement in a finished Alamo Heights home runs $4,500-$8,500, while targeted sealing with cleaning runs a fraction of that. We camera-inspect to find the worst leaks, seal what we can reach, and give you an honest assessment of whether replacement is the better long-term path. Call for a free inspection - we’ll show you the footage and talk through the numbers.
Every three to five years for the full system, with coil and blower checks every two years if you have heavy air conditioning use or allergy sensitivity. Homes directly exposed to Hill Country pollen corridors - particularly those near the Quarry Golf Club or along Broadway’s elevation changes - may need more frequent attention. Call (866) 347-2063 and we’ll set a schedule based on your home’s specific conditions.
Yes. Attics in Alamo Heights regularly exceed 150°F in summer, which degrades flex-duct liner and accelerates thermal expansion that loosens joints. That heat stress is why we check for disconnects and degraded materials during every cleaning - problems that a northern-climate technician might not think to look for. Our technicians are trained for Texas conditions specifically.
It helps, especially if the coil is currently loaded with pollen and microbial growth that’s recirculating into your air. But coil cleaning alone won’t stop new pollen from entering through leaky ducts. For the best results during cedar season, we recommend coil cleaning plus joint sealing to stop the infiltration at its source. Many Alamo Heights homeowners schedule this combination in November, before the December pollen peak. Call (866) 347-2063 for a free estimate - we’ll inspect with a camera and show you exactly what your system needs.
Ready to see what’s inside your ducts? Call Bellows Air Duct & Vent Co. of Texas at (866) 347-2063 for a free, camera-guided estimate. We’ll answer live, show up when we say, and stand behind our work for 90 days - in writing, no arguing. That’s the square deal we’ve offered Alamo Heights homeowners since 1984.
Written by Wade Kellerman, Owner at Bellows Air Duct & Vent Co. of Texas, serving Alamo Heights since 1984.