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.
Fast, Reliable HVAC Cleaning Across Bulverde
HVAC cleaning in Bulverde typically costs $425 – $780 for a full-system cleaning on an average Hill Country home, including the evaporator coil, blower, supply and return ducts, and plenum. Most jobs run three to five hours depending on access. At Cardinal Air Duct Cleaning, you get a written price before we touch a single register, and you get before-and-after photos of your own ductwork when we’re done. Call (737) 727-2314 to schedule.
We know Bulverde. Not the brochure version. The real one: new subdivisions off Bulverde Road built three years ago where the construction dust is still settling in the ductwork, and older pier-and-beam homes up toward the northern edge where the duct runs under the house haven’t seen daylight since the Reagan administration. The crews we send to Bulverde live in the Hill Country and know exactly what they’re walking into before they open the attic hatch.
Why Cardinal Air Duct Cleaning Is Bulverde’s Preferred HVAC Cleaning Company
Omar Haddad leads our HVAC Cleaning team across the San Antonio corridor, and he runs every Bulverde job on the same standard: total visibility from booking to invoice. That means you get a live trackable arrival window on your phone, a written price before the work starts, and photo documentation of every duct we clean. No guessing, no surprises at the door.
We’re part of the Relay Home Co. family, founded 2005, and every Bulverde booking is held to The Relay Visibility Guarantee. If the work isn’t done right within 365 days, we return and correct it at no charge. That’s the longest satisfaction window in the trade, and it applies to every single job we do in Bulverde, not just the big ones.
You’ll know your technician’s name before they ring the bell. They’re background-checked, uniformed, and running professional-grade equipment: Nikro HEPA-rated vacuum extraction, Rotobrush rotary brush systems for source removal, and Abatement Technologies containment units so the dirt we pull out doesn’t end up back in your living room. A live person answers our phones around the clock. No voicemail roulette.
AC Cleaning in Bulverde
AC cleaning in Bulverde means cleaning the entire air conditioning side of your HVAC system, not just the ducts. For most Bulverde homes, that means the evaporator coil, blower fan and housing, drain pan, and the supply and return ducts connected to the air handler. A full AC cleaning in Bulverde runs $350 – $550. If you’re only having the ducts brushed out and the evaporator coil skipped, you’re paying for half a job.
What Bulverde homebuyers should know
New construction in subdivisions along Bulverde Road and around the Johnson Ranch area often has drywall dust and spray-foam particles inside the supply ducts before the first homeowner even moves in. Builders rarely clean ducts before close. If your home was built in the last five years and you’ve never had the AC side cleaned, there’s a good chance the coil is carrying construction residue.
One flat price per system
We quote AC cleaning as one flat price per system before we start, and it doesn’t change at the door. Some Bulverde homeowners have told us other companies quoted per vent and the final invoice came in three times higher than the teaser number. We don’t count vents. We evaluate your actual system and give you a price that holds.
Evaporator Coil Cleaning in Bulverde
Evaporator coil cleaning in Bulverde is the single most important part of any HVAC cleaning, and it’s the step most duct-only crews skip. Your evaporator coil sits inside the air handler and is the coldest surface in the system. Every cubic foot of air that cools your Bulverde home passes across it. When it’s caked with dust, pet dander, and Hill Country pollen, your AC runs longer, cools less, and costs more every month.
Evaporator coil cleaning in Bulverde typically runs $175 – $325 as part of a full HVAC cleaning. We clean the coil itself, not just the exterior face. On most Bulverde systems that means accessing the coil through the air handler cabinet, applying a coil-specific cleaning agent, and flushing the debris into the drain pan so it exits through the condensate line.
Why coil cleaning gets skipped
On many Bulverde homes, the evaporator coil is genuinely hard to reach. Tight attic access, a horizontal air handler in a low-clearance space, or a coil buried behind ductwork connections. Crews that blow out ducts but never touch the coil leave the biggest source of buildup in place. We don’t skip it. If access is genuinely impossible without cutting into the plenum, we’ll show you the camera image and tell you exactly what we found and what it would take to correct it.
Coil treatment after cleaning
After the evaporator coil is clean, we apply a coil treatment that helps slow future buildup. For most Bulverde homes, especially those near the live oaks between Cibolo Creek and the northern Hill Country, pollen and dust accumulation is a year-round issue, not a seasonal one. The treatment gives the coil a fighting chance between cleanings.
Trusted Brands We Service in Bulverde
We clean and service all major HVAC brands found in Bulverde homes: Carrier, Trane, Lennox, Goodman, Rheem, American Standard, and more. The equipment matters less than the person working on it. Our technicians are trained on Honeywell air filtration products and Aprilaire media cabinets, and our vacuum extraction systems come from Nikro. We carry common filters and replacement parts on the truck, which means most Bulverde jobs don’t require a second visit just because we needed to order a part. If your system uses an unusual filter size or a specialty Aprilaire cabinet, we’ll source it locally and get you scheduled back quickly.
Common HVAC Cleaning Problems We See in Bulverde Homes
- Construction dust in new-build ductwork. Homes built in the last few years along Bulverde Road and in newer subdivisions routinely have drywall dust, sawdust, and spray-foam overspray inside supply ducts. Builders don’t clean before handing over keys, and the HVAC system blows that dust into every room for years.
- Evaporator coils failing from Hill Country pollen and limestone dust. Bulverde sits in the transition zone between the Edwards Plateau and the Blackland Prairie. The airborne mix of juniper, oak pollen, and fine limestone dust collects on coils fast. Homes with livestock nearby or on unpaved private roads see even faster buildup.
- Pier-and-beam homes with sagging flex duct. Older Bulverde homes on pier-and-beam foundations often have flex duct running under the house. Critters, moisture, and time cause sagging, kinks, and torn outer liners. We find disconnected runs more often than homeowners expect.
- Returns pulling lint and debris past failed seals. In Bulverde homes where the air handler sits in a tight attic or closet, return-side leaks at the plenum connection pull unfiltered air straight into the system. The ductwork gets dirty fast because the system is breathing attic air, not house air.
Pricing for HVAC Cleaning in Bulverde, TX
A standard full-system HVAC cleaning for a Bulverde home runs $425 – $780. That’s one flat price per system, agreed before work starts, covering camera inspection, source removal of the supply and return ducts, evaporator coil cleaning, blower cleaning, and the plenum. Larger homes with multiple systems or unusually long duct runs trend toward the top of the range. Homes with easy attic access and a single air handler trend toward the bottom. You’ll never get a per-vent quote from us. You’ll get a written price for the whole system, and it doesn’t change when the technician arrives. Call (737) 727-2314 for a free estimate on your Bulverde home.
We Also Serve Cities Near Bulverde
Our HVAC Cleaning teams cover Bulverde and the surrounding Hill Country communities. If you’re in Canyon Lake, Schertz, Universal City, or Cibolo, we’ll schedule the same flat-price, per-system service with the same 365-Day Done Right Promise. Bulverde is home base for our northern San Antonio service area, and we’re familiar with the ductwork quirks in every one of these towns.
Serving Bulverde, TX - Our Local Coverage Area
We’re based in the Bulverde 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 Bulverde
Every three to five years for most Bulverde homes. Homes with large dogs, smokers, recent renovation work, or located near unpaved limestone roads should lean toward every two to three years. If your home was built in the last five years and has never been cleaned, schedule it now. Construction dust doesn’t work its way out on its own. Call (737) 727-2314 and we’ll give you an honest assessment.
Per system, always. Counting vents is how Bulverde homeowners get quoted $29 a vent and then handed an $800 invoice for a 14-vent home that should have been $500. We evaluate your actual HVAC system, access conditions, and duct layout, then give you one written price before any work begins. It doesn’t shift at the door.
First, camera inspection. We show you what’s inside your ducts before we touch them. Then we set up negative pressure with a Nikro HEPA vacuum and Abatement Technologies containment, so loosened debris is pulled out of the system, not pushed into your rooms. We run Rotobrush agitation tools through the supply and return ducts, clean the evaporator coil and blower, seal any visible plenum leaks, and hand you before-and-after photos of your own ductwork. You see the work. That’s the Relay Standard.
Because a clean duct system feeding air across a dirty coil is meaningless. The evaporator coil is where the actual cooling happens, and it’s the primary collection point for dust, dander, and Bulverde’s pollen load. Any HVAC cleaning that skips the coil is a duct blowout, not an HVAC cleaning. We include it in every full-system job and show you the coil before and after.
Yes. Pier-and-beam homes have duct runs accessible from underneath, and we work in crawl spaces regularly. Tight attics are more common in Bulverde’s newer builds, where roof lines leave only 18 to 24 inches of clearance over blown-in insulation. Our technicians are trained for confined-space access and run the same negative-pressure process whether the ductwork is overhead or underfoot. If access is genuinely blocked, we’ll show you exactly why on camera and tell you what it would take to do the job right. Call (737) 727-2314 for an honest assessment of your specific home.
Schedule Your HVAC Cleaning in Bulverde
We just cleaned a 2,400-square-foot home off Bulverde Road near the Johnson Ranch area. The homeowner had replaced a blower motor on an older Carrier air handler and called us because airflow still felt weak. During camera inspection we found the evaporator coil caked with construction dust from a renovation two years prior, and the return duct above the air handler was pulling lint past a failed seal. We set up negative pressure with our Rotobrush and Abatement Technologies HEPA filtration unit, used agitation tools on the supply and return ducts, sealed the leak at the plenum, and showed the homeowner before-and-after photos of the coil and the duct interior the same afternoon. That’s the job, done visibly.
Bulverde’s mix of new-build subdivisions on slab foundations and older Hill Country homes on pier-and-beam means duct runs vary wildly in accessibility. Some attics are tall enough to walk through; others require crawling through 18-inch gaps over blown-in insulation. That access reality, not the ductwork itself, often determines how long an HVAC cleaning takes. We quote honestly based on what we can see and verify, and we explain what we found when we’re done. No per-vent games, no coil skipped because it’s hard to reach, no invoice that moves after you said yes.
Call (737) 727-2314 for a free estimate. A live person answers, we’ll talk through your system and your concerns, and we’ll get you a written price before anyone shows up at your door.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Bulverde and the surrounding Hill Country.




Before
After
Before
After
Before
After