Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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 Air Duct Cleaning Across Castle Hills
Air duct cleaning in Castle Hills typically runs $380 to $720 for a full system, depending on the number of HVAC units and duct runs in the home. Most of the ranch-style houses here were built between the 1950s and 1970s, and many still have original galvanized steel ductwork that no amount of filter-changing will clean. We know these homes. We know how the caliche dust from the alkaline soil works its way into every supply register, and we know how to remove it properly. If you’re in Castle Hills and want a written price before anyone starts, call us at (903) 354-8393. Paul Adeyemi and the rest of our Castle Hills crew do this work carefully, with shoe covers on and drop cloths down before the equipment ever comes through the door.
Why Mortons Air Duct San Antonio Is Castle Hills’s Preferred Air Duct Cleaning Company
Castle Hills homeowners call us because we treat the job like it matters after we leave. Crews that rush through a 1960s ranch with two or three separate HVAC systems leave debris behind in the far runs, and the homeowner never knows it until the dust settles back onto the furniture. Our Air Duct Cleaning team walks every system with a camera before we clean, then again after, so you see the condition of your ducts with your own eyes. That matters in Castle Hills, where sagging flex ducts in hot attics are common and a surface-level vacuum job just won’t reach the problem.
Our technicians are background-checked, uniformed, and they work to the Cedarwell Care Promise on every job. Floors get covered. Quiet tools get used when a baby is napping down the hall. Pet-safe product choices get made where they’re available. And before anything begins, you get a written price that won’t change when the van is parked in your driveway. Castle Hills families have told us, plainly, that they’ve been burned before by per-vent pricing that ballooned once the crew arrived. We don’t work that way.
We also answer the phone when you call. Not a voicemail tree. A real person, any hour, who can schedule your Castle Hills appointment and get you on the calendar. If it’s after hours and you just want to know what a cleaning should cost for your square footage, call (903) 354-8393 and ask. We’ll tell you straight.
Styles & brands we work with
Vent Cleaning in Castle Hills
Vent cleaning in Castle Hills means removing caliche dust, cedar pollen, pet hair, and years of accumulated debris from every supply and return register, the register boots, and the visible duct openings throughout the home. The limestone-heavy soil around Castle Hills produces a fine dust that finds its way into registers even in well-sealed houses, and the annual cedar and oak pollen seasons coat the inside of vents with a sticky film that ordinary vacuuming won’t remove. A typical vent cleaning in Castle Hills runs $180 to $320 for a single-system ranch, though homes with multiple HVAC units will be higher because there are simply more registers and runs to service.
Register Removal and Boot Cleaning
We remove each register plate, clean it thoroughly, and use HEPA-filtered tools to clean the boot where the register meets the duct. In Castle Hills homes with original registers from the 1960s, paint and rust can have sealed some plates in place. We take our time and free them without damaging the surrounding drywall or wood.
HEPA Filtration for Allergen Removal
For Castle Hills families where someone struggles with cedar fever every winter, we recommend cleaning combined with HEPA-filtered negative air. This pulls fine pollen and limestone dust out of the duct system rather than pushing it back into the room through the registers.
Air Duct Repair in Castle Hills
Air duct repair in Castle Hills usually means sealing leaking joints, replacing sagging flex duct in attic spaces, or repairing corroded galvanized sections that have rusted through after decades of San Antonio-area humidity. A straightforward repair like sealing a separated trunk line joint in a Castle Hills ranch typically runs $150 to $350, while replacing a damaged flex duct run costs $250 to $600 depending on the length and accessibility. Many of the original duct systems in this city were undersized when they were installed, and after fifty or sixty years they need more than a cleaning.
Camera Inspection of Attic Duct Runs
Before we quote any repair, we inspect the full duct run with a camera. In Castle Hills attics, we often find flex ducts that have sagged between trusses, pulled loose from their collars, or been crushed by stored boxes. You can’t see this from the living room, which is why inspection matters as much as the repair itself.
Sealing and Reinforcement
We use mastic sealant and metal-backed tape to re-seal joints, and we re-hang sagging sections with proper strapping so they hold their shape in the Texas attic heat. A sealed system puts air where it belongs, and your allergy medication dose doesn’t have to fight against leaks in the attic.
Trusted Brands We Service in Castle Hills
Our crews in Castle Hills use professional equipment from Rotobrush and Nikro, with HEPA filtration systems from Honeywell and Aprilaire when the job calls for source removal of fine dust. These aren’t rental machines from a big-box store. Rotobrush rotary agitation tools break loose the caliche that bakes onto duct walls, and Nikro negative air machines capture it before it enters your living space. For Castle Hills homes with aging HVAC systems, we can also recommend Aprilaire filtration upgrades that make sense for your square footage. We keep common replacement parts on hand for the types of systems we see most often in this city, which means less waiting for a return visit.
See the difference
Before
After
Before
After
Before
AfterCommon Air Duct Cleaning Problems We See in Castle Hills Homes
- Caliche dust bonded to duct interiors. The alkaline soil around Castle Hills creates dust that mixes with humid air and bakes onto galvanized duct walls. A brush-and-vacuum pass will smear this layer around. We use rotary agitation under negative pressure to actually remove it.
- Sagging flex ducts in attics. Decades of San Antonio-area summer heat make flex duct lose its shape. We find sagged runs in most 1960s and 70s Castle Hills attics, and a sagging duct traps the debris that a cleaning was meant to remove.
- Original undersized ductwork. Many Castle Hills homes were built with ductwork sized for smaller, older HVAC systems. When a newer system gets installed, the ducts can’t move enough air, which accelerates dust buildup and creates hot and cold spots from room to room.
- Multiple HVAC systems needing separate attention. Larger Castle Hills ranches often run three separate systems. Each one has its own supply and return network, and each needs to be priced, cleaned, and documented separately. An estimate based on a single flat whole-house price misses this entirely.
Pricing for Air Duct Cleaning in Castle Hills, TX
A full system cleaning for a typical single-system Castle Hills ranch home runs $380 to $520. Larger homes with two systems run $520 to $640, and three-system properties run $640 to $720 or more, depending on the number of registers and the length of duct runs. Factors that affect cost include the number of HVAC systems, accessibility of attic ductwork, presence of mold or heavy debris, and whether the home has original galvanized ducts that require more aggressive cleaning. We give a written price before any work starts, and that price is based on your specific home, not a generic square footage chart. Call (903) 354-8393 for a free estimate. You’ll know the number before we book the appointment.
We Also Serve Cities Near Castle Hills
Our Castle Hills crews regularly work in the surrounding communities including San Antonio, Schertz, Boerne, and Helotes. If you’re outside the Castle Hills city limits but still in the northwest San Antonio metro, call us and we’ll confirm coverage for your street.
Serving Castle Hills, TX - Our Local Coverage Area
We’re based in the Castle Hills 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 Air Duct Cleaning in Castle Hills
Every 2 to 3 years for most Castle Hills homes, and every 12 to 18 months if someone in the house has cedar fever or another allergy, or if the home sits on exposed caliche with construction activity nearby. The limestone dust in this area is unusually fine and works into duct systems faster than in neighboring San Antonio. A home with original 1960s ductwork and two shedding dogs will need attention more often than a newer construction with hard floors and no pets. Call (903) 354-8393 and we’ll help you figure out a sensible schedule for your specific house.
In most cases, the original ductwork was undersized for the home even when it was new, and decades of unsealed joints and attic heat exposure have made the problem worse. Sagging flex ducts in the attic will reduce airflow to the rooms farthest from the blower, and a cleaning won’t fix that. We inspect every duct run with a camera during the cleaning and show you exactly where the airflow is being lost, so you can decide what repair makes sense with full information.
You should expect before-and-after photos of the inside of your ducts, a written summary of what was found and what was done, and a copy of your written price signed before work began. We provide all three on every Castle Hills job. The before-and-after camera footage shows you the duct walls and the blower area, so you’re not taking anyone’s word for work you can’t see from the living room. Paul Adeyemi makes sure every Castle Hills customer leaves with this documentation in hand.
Yes, and especially in homes where the original ductwork is still in place. NADCA’s standard requires cleaning the entire system, not just the visible registers, and it provides a benchmark for what source removal actually means. When we clean an original galvanized system in a Castle Hills home, we follow NADCA’s approach: agitate the debris, collect it under negative pressure with HEPA filtration, and verify the result with a camera. A company that skips any of those steps isn’t meeting the standard, and on old Castle Hills ductwork that shortcut is visible in the months that follow.
If asbestos wrap is present, cleaning must be done carefully by a professional who understands how to work around it without damaging the material. We identify any wrap that looks suspect during the camera inspection and adjust our approach accordingly. Disturbing asbestos is a serious health risk, and no legitimate technician should ever knowingly agitate it. If we find wrap we cannot safely work around, we’ll tell you plainly and help you understand your options before any cleaning begins. Call (903) 354-8393 to talk through what we’d look for in your attic.
Written by Paul Adeyemi, Owner at Mortons Air Duct San Antonio, serving Castle Hills since 2005.