Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
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AfterFast, Reliable HVAC Cleaning Across Alamo Heights
HVAC cleaning in Alamo Heights typically runs $450 – $950 for a complete system cleaning, and most jobs are done in a single visit. We work in the 78209 ZIP constantly, so we know the housing stock, the clay soil, and the ductwork quirks that come with mid-century construction. If your AC is running but the air feels stale, or you’re seeing dust settle within days of wiping it down, call (737) 727-2314 and we’ll give you a straight answer on what you actually need.
Cardinal Air Duct Cleaning is part of the Relay Home Co. family, founded 2005. That means every job here comes with The Relay Standard: a live trackable arrival window, before-and-after photos of your own ducts, and a written price handed to you before a single tool comes off the truck. No per-vent games. No bait-and-switch add-ons. Just a flat price per system, agreed upfront.
Why Cardinal Air Duct Cleaning Is Alamo Heights’s Preferred HVAC Cleaning Company
We’ve worked enough Alamo Heights homes to know what separates an honest cleaning from a quick vacuum pass. Omar Haddad, who leads our local team, insists on one thing above all: you see what we see. Every job ends with camera-inspection shots of your trunk line, coil, and registers shown to you on our tablet before we leave. If we can’t show you the before and after, we haven’t finished.
Our technicians arrive in uniform, background-checked, and with their name sent to you in advance through The Relay Standard booking flow. That matters in a small, close-knit community like Alamo Heights, where neighbors talk and a service company either earns trust or doesn’t last. We answer the phone with a live person around the clock – no voicemail loops, no callbacks three days later.
Response time to Alamo Heights is typically next-day, sometimes same-week depending on the season. In the June through September stretch when central AC systems are pulling 14-hour days, we prioritize coil and blower cleaning for systems showing clear strain: low airflow, warm supply air, or a compressor cycling more than it should.
Our HVAC Cleaning team runs professional-grade equipment: Rotobrush brush systems for agitation, Nikro HEPA vacuums for negative-pressure extraction, and Abatement Technologies containment units when we’re working attics with blown-in insulation or heavier contamination. You know what tools are coming through your door. That’s the whole point.
AC Coil Cleaning in Alamo Heights
AC Coil Cleaning in Alamo Heights usually runs $250 – $450 for a full evaporator coil cleaning on a standard 3 – 4 ton system. The coil is the part of your air handler where refrigerant absorbs heat from your home’s air. Over time, Alamo Heights dust mixed with the humidity we get from spring storms sticks to the coil face. The result is a system that runs longer to hit the same setpoint, which shows up on your CPS Energy bill as a slow, steady climb.
When the Coil Is the Problem
You’ll notice the air coming from your supply registers is cool but weak. The system cycles on and off more frequently. Sometimes there’s a faint musty smell when the blower first starts, which is exactly what a coated coil smells like in a closed-up 1950s ranch.
Evaporator Coil Cleaning in Alamo Heights
We pull the access panel, isolate the coil, and apply a professional coil cleaner that breaks down the mat of dust, pollen, and sometimes pet hair that builds on the fins. Then we rinse it out with a controlled water flow that won’t flood your drain pan or overflow into the duct chase. In older Alamo Heights homes with original downflow furnaces, we’re careful to inspect the drain line and pan before we start, because clay-soil shifting over decades has left more than a few pans slightly out of level.
AC Cleaning in Alamo Heights
AC Cleaning in Alamo Heights covers the whole airflow path: return ducts, supply ducts, blower motor assembly, evaporator coil, and the air handler cabinet. For a typical 3-bedroom, 2-bath home around 1,800 – 2,400 square feet, expect $550 – $850 for the full system. Homes with original 1950s or 1960s ductwork that has never been cleaned, or homes with heavy pet dander, run toward the top of that range.
Blower Cleaning in Alamo Heights
The blower wheel is a magnet for the fine gray dust that comes with older homes in the 78209 ZIP. When the wheel blades are caked, the motor has to spin harder, and the system moves less air. We pull the blower assembly, clean each wheel fin, and reinstall it with the same care you’d expect from someone working on a 60-year-old house – because often, that’s exactly what we’re doing.
Condenser Cleaning in Alamo Heights
The outdoor condenser unit is exposed to everything Alamo Heights weather throws at it: live oak pollen in spring, cottonwood fluff in early summer, and dust off the caliche-rich soil whenever the wind kicks up. We clean the condenser coil fins with a professional coil cleaner and low-pressure rinse, and we check the fan motor and capacitor at the same time. It’s the fastest way to drop head pressure and help an older AC unit survive another Texas summer.
Trusted Brands We Service in Alamo Heights
We work on all major brands you’ll find in Alamo Heights homes: Trane, Carrier, Lennox, Rheem, Goodman, and older American Standard units still running from the 1990s. For filtration, we stock and install Honeywell media cabinets, Aprilaire whole-home filters, and Guardsman UV systems. This matters when you need a repair now, not a week from now – we carry the parts for the brands most common in the 78209 ZIP, which cuts turnaround time. When you book through Cardinal, you’re not getting a subcontracted handoff. You get our team, our equipment, and our 365-Day Done Right Promise on every job.
Common HVAC Cleaning Problems We See in Alamo Heights Homes
- Separated duct joints in attics and crawlspaces. Alamo Heights sits on clay soil that expands and contracts with seasonal moisture shifts. That movement, layered over 50 – 70 years, can loosen duct connections, which lets attic air and insulation dust into the airflow path. Cleaning reveals these gaps even when the registers look clean.
- Heavily coated blower wheels in mid-century ranches. Homes in Terrill Hills, Olmos Park Terrace, and the neighborhoods off Broadway were built when return-air filtration was a single 1-inch fiberglass panel. Without a media filter upgrade, the blower wheel becomes a dust trap that reduces airflow and makes the system work harder.
- Collapsed or kinked flex duct from attic heat. Alamo Heights
Attics regularly hit 130 – 140°F in August. Older flex duct, especially runs added during 1980s or 1990s renovations, can collapse internally or kink at the takeoff. The camera inspection shows it.
- Mold-like growth on evaporator coils in homes with climbing humidity. Alamo Heights’s wet springs and mild shoulder seasons create condensation on the coil, and when the condensate drain isn’t pitched correctly, that moisture lingers. The result is a musty smell that returns a month after standard cleaning. We check drain pitch and pan level as part of the coil cleaning, because in these homes, that’s usually the root cause.
Pricing for HVAC Cleaning in Alamo Heights, TX
A full HVAC cleaning in Alamo Heights runs $450 – $950, depending on system size and how much ductwork you have. Coil-only cleaning runs $250 – $450. Blower cleaning as part of a full system is included; as a standalone it’s $200 – $350. We quote one flat price per system before any work starts, and that number does not change at the door. You will not be quoted a per-vent price from us, because that pricing model is why this industry has the reputation it does. What affects your price: the number of supply and return runs, whether the ducts are accessible from a standing attic or a tight crawlspace, and whether the system has been cleaned before or this is the first time in 30 years. Call (737) 727-2314 and we’ll give you an exact figure. Estimates are free.
We Also Serve Cities Near Alamo Heights
Our HVAC Cleaning in Alamo Heights team serves the broader metro as well, including San Antonio proper, Terrell Hills, Olmos Park, and the surrounding communities. We also run crews in Houston, Dallas, and Fort Worth. Wherever you are, you get The Relay Standard: a live trackable arrival window, before-and-after photos, and a written price before any work starts.
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 About HVAC Cleaning in Alamo Heights
Every 5 – 7 years for most homes, but Alamo Heights homes with original ductwork, live oak exposure, or pets often need it every 3 – 5. We don’t push annual cleanings. If a company tells you your ducts need cleaning every year like clockwork, they’re selling you a subscription you don’t need. Call (737) 727-2314 and we’ll tell you honestly whether your system needs it now or can wait.
Per system. Always. The per-vent pricing model is how homeowners end up with a $99 ad that becomes $800 forty minutes into the job. We give you a written price for the entire system before we start, and it does not change. That’s the Cardinal standard, and it’s backed by The Relay Visibility Guarantee.
It can help meaningfully if your symptoms are triggered by dust, pollen, or pet dander that’s circulating through your ductwork. We’ve had Alamo Heights customers tell us their spring cedar and oak pollen season was noticeably better after cleaning plus a media filter upgrade. But we’re honest that it’s not a cure for all allergens. If you’re reacting to mold spores from a different source, duct cleaning alone won’t solve it. We’ll tell you what we find, with photos.
NADCA standards require negative-pressure extraction and source removal, which means loosened debris goes straight into a HEPA-filtered vacuum rather than back into your living room. A $99 special typically runs a vacuum hose down your registers without agitation, without HEPA containment, and without touching the air handler. The debris gets stirred up but never actually leaves the system. We use Rotobrush agitation tools inside the ducts, Nikro HEPA vacuums for extraction, and Abatement Technologies containment – that’s the NADCA-grade process, and it’s what honest cleaning actually requires. Call (737) 727-2314 for a real quote.
We don’t promise same-day service, and we’re not going to pretend otherwise. Proper HVAC cleaning is a scheduled job that takes 3 – 5 hours for a full system. What we do offer is next-day availability in most cases, a live trackable arrival window so you’re not sitting around for four hours, and a phone number answered by a real person whenever you call. If you need it done this week, call (737) 727-2314 and we’ll get you on the schedule honestly.
Contact Cardinal Air Duct Cleaning in Alamo Heights
When you call, you’ll speak to a person who knows the Alamo Heights market and can give you a real price range over the phone. We’ll schedule your cleaning, send you a live trackable window on The Relay Standard app, and show you before-and-after photos of your own ducts before we mark the job complete. One flat price per system, agreed before we start. A full year to call us back if anything isn’t right. That’s how we work in Alamo Heights, and that’s how we’ll work in your home. Call (737) 727-2314 for a free estimate today.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Alamo Heights.