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
Most air duct cleaning jobs in Castle Hills run $350 – $600 for a typical single-system home, and the work usually takes 3 – 5 hours from setup to final photo documentation. That’s the honest range before we walk in your door, and it won’t change once the van pulls up. If you’ve got 1960s – 1980s flex duct baking in an unconditioned attic, or live oaks dropping pollen straight into your return grilles, you’ll want a crew that knows exactly what Castle Hills ductwork looks like. Call (254) 347-3897 and you’ll get a written quote before any work starts, plus a live arrival window you can track from your phone.
Why Cardinal Air Duct San Antonio Is Castle Hills’s Preferred Air Duct Cleaning Company
Castle Hills isn’t a blank spot on our map. Our crews work the neighborhoods between West Avenue and Loop 410, and we know what happens inside the walls and attics of these mid-century homes after 40 or 50 years of South Texas heat, humidity, and oak pollen. Omar Haddad and the Air Duct Cleaning team operate on one rule: you see the price before we touch a single register, and you see photo proof after we’re done. No bait-and-switch, no “found something extra” surprises.
Homeowners in Castle Hills tell us the same thing over and over: they used a cheap coupon service once and watched the price triple at the door. That’s why Cardinal Air Duct San Antonio is part of the Relay Home Co. family, founded 2005, and held to The Relay Visibility Guarantee. Your booking includes a written price before work begins, before-and-after photos of your own ducts, and a digital invoice you can pay by link. The 365-Day Done Right Promise covers every job without exception: if the work isn’t right within a full year, we come back and make it right at no charge.
Styles & brands we work with
Residential Air Duct Cleaning in Castle Hills
Residential Air Duct Cleaning in Castle Hills starts with the reality of your housing stock: original flex duct in unconditioned attics, oak pollen seasons that run for months, and return paths that often run through damp crawl spaces in the older pier-and-beam ranches. We clean the full system, not just the supply registers you can see. That means supply ducts, return ducts, the plenum, the blower compartment, and the evaporator coil when it’s accessible.
Supply and Return Duct Work
Supply ducts push conditioned air into your rooms. Return ducts pull air back to the air handler. Both need attention in Castle Hills, because oak pollen and fine dust get pulled into the return side and then redistributed through every supply register when the AC cycles. We use Rotobrush rotary brush systems to agitate debris loose, then negative-pressure extraction with Nikro HEPA-rated vacuums to pull it straight out of the duct, not back into your living room.
Full System Cleaning and Video Inspection
A full system cleaning includes the supply and return runs, the plenum, the blower motor, and the coil. We don’t just clean and leave. Every full system cleaning includes video inspection before and after, so you see exactly what came out and what remains. If you have flex duct that’s deteriorated beyond cleaning, we’ll show you on camera so you can make an informed call instead of guessing.
Commercial Air Duct Cleaning in Castle Hills
Commercial Air Duct Cleaning in Castle Hills serves the offices, clinics, and retail spaces along West Avenue and the commercial corridors near Loop 410. Commercial systems run longer hours, push more cubic feet per minute, and accumulate dust faster than residential ductwork. A single restaurant kitchen or medical office with dirty supply ducts can push recirculated dust and allergens across thousands of square feet every weekday.
Office and Retail Duct Systems
We schedule commercial work around your operating hours. Our crews run Abatement Technologies containment units where needed to keep dust from migrating into occupied spaces, and Nikro HEPA vacuums handle the extraction at commercial air volumes. A typical small retail or office duct cleaning in Castle Hills runs $500 – $1,200 depending on square footage, duct runs, and access.
Medical and Clinical Spaces
Clinics and dental offices in Castle Hills need cleaner air than a standard retail space, full stop. We run pre-cleaning video inspection, document the contamination, clean the supply and return runs, and provide post-cleaning photo proof. The written guarantee covers every commercial repair we make, with a free second visit if a repair fails. That’s the 365-Day Done Right Promise applied to commercial work, not just residential.
Trusted Brands We Service in Castle Hills
We service and clean duct systems tied to Honeywell, Aprilaire, and Guardsman filtration equipment, plus air handlers and coils across all major residential and light commercial brands. When your system has an Aprilaire media filter housing or a Honeywell bypass humidifier, we’ll clean around it correctly and tell you when the filter media actually needs replacing based on Castle Hills pollen load, not a factory calendar. We carry the common air filter sizes and replacement media on the truck, so a standard Aprilaire or Honeywell filter gets swapped during the same visit when it’s needed, with the cost shown in your written quote before the work starts.
See the difference
Before
After
Before
After
Before
AfterCommon Air Duct Cleaning Problems We See in Castle Hills Homes
- Brittle flex duct flaking into the airstream. Original flex duct in 1960s – 1980s attics baked at 140°F for decades turns brittle, and the inner liner sheds fine fiberglass dust into supply air. Cleaning helps; sealing or replacing the worst runs is the real fix.
- Live oak pollen caked on the blower and coil. Castle Hills’ towering live oaks drop enormous pollen loads each spring, and it doesn’t stay outside. Pollen builds up on blower motors and evaporator coils, cutting airflow by up to 30 percent during the first heat wave if you skip a spring cleaning.
- Crawl space returns pulling in mold spores. Older pier-and-beam ranchers often run return ducts through damp crawl spaces. After heavy spring rains, those returns pull mold spores into the system, and the AC redistributes them through every register.
- Two-story homes with dust resettling in long flex runs. DIY duct cleaning with a shop vac can’t generate enough negative pressure to pull dust through long flex runs in two-story homes. The debris loosens, then resettles deeper in the supply ducts, so the problem returns within weeks.
Pricing for Air Duct Cleaning in Castle Hills, TX
We Also Serve Cities Near Castle Hills
Cardinal Air Duct San Antonio handles Air Duct Cleaning in Castle Hills and the surrounding communities across the metro. We also serve San Antonio, New Braunfels, Cibolo, and Converse with the same written-price-before-work standard and 365-Day Done Right Promise on every job.
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
How often should I have my air ducts cleaned in Castle Hills given all the live oaks?
Most Castle Hills homes need air duct cleaning every 2 – 3 years, but homes with heavy live oak canopy or original 1960s – 1980s flex duct may benefit from an annual spring cleaning. The oak pollen season runs long, and that dust loads your return ducts faster than it would in neighborhoods without the tree cover. Call (254) 347-3897 and we’ll help you figure out the right interval for your specific house.
My Castle Hills home is from the 1970s with flex duct in the attic. Is cleaning enough, or do I need replacement?
It depends on what our camera inspection shows. If the flex duct inner liner is intact, a full negative-pressure cleaning with agitation tools will remove the dust and pollen. If the liner is flaking or brittle, cleaning alone won’t stop fiberglass particles from entering the airstream, and sealing or replacing those runs is the only real fix. We’ll show you the footage and quote both options honestly before any work starts.
Why does my Castle Hills house get dusty just days after cleaning, especially in spring?
In Castle Hills, the most common cause is live oak pollen entering through fresh air intakes, leaky return ducts, or windows left open during spring. Older homes with return ducts running through crawl spaces can also pull in dust and mold spores from below, which the AC system then redistributes. A proper cleaning addresses the duct system, but if the returns leak or the crawl space is the source, sealing work is part of the fix.
Can you clean the dryer vent at the same time as the air ducts here in Castle Hills?
Yes, we can clean the dryer vent during the same Castle Hills visit, and it’s a smart add for older homes where lint builds up in long vertical runs through two-story walls. The dryer vent quote is added to your written price before we start, so you know the full amount up front. Call (254) 347-3897 and mention the dryer vent when you book.
Do I need to clean ducts in my detached garage or workshop in Castle Hills?
If the detached garage or workshop has a conditioned air system with ducts, then yes, it needs the same attention as the main house, especially if you run woodworking equipment or park a car inside. Dust, sawdust, and exhaust residue get pulled into the return side and circulate whenever the system runs. If the space is unconditioned with no ducting, a standalone air filter or regular vent cleaning may be enough.
Castle Hills homes run on original ductwork, live oak pollen, and South Texas heat. If your system hasn’t been cleaned in years, or you smell musty air when the AC cycles, call Omar Haddad and the team at Cardinal Air Duct San Antonio today at (254) 347-3897. We’ll give you a written price before any work starts, a live arrival window you can track, and before-and-after photos of your own ducts before we leave.
Written by Omar Haddad, Owner at Cardinal Air Duct San Antonio, serving Castle Hills and the surrounding metro.