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 Air Duct Cleaning Across Castle Hills
Castle Hills homeowners call (726) 600-7155 when they need air duct cleaning backed by a written price and a photo record they can see. We’re familiar with the mid-century ranch stock that defines this city, from the homes off West Avenue to the properties near the Castle Hills Municipal Complex, and we schedule crews to Castle Hills with the understanding that these 1950-1972 systems require a different approach than the flex-duct builds in newer suburbs. Dispatch and scheduling are coordinated from our Dallas-Fort Worth office, but the crews serving Castle Hills are local to the San Antonio metro and carry the right permits for this independent enclave city.
Why CleanRun Air Duct Cleaning San Antonio Is Castle Hills’s Preferred Air Duct Cleaning Company
Our Air Duct Cleaning team has worked Castle Hills long enough to know the difference between a San Antonio permit and a City of Castle Hills mechanical permit. That distinction matters when duct modification is part of the job, and it’s one San Antonio-only contractors miss regularly.
We’ve served over 52,000 homes since 2013, every one with a written price before work started and a Documented Photo Record delivered at completion. Castle Hills customers receive the same standard: before-and-after photography inside every duct run, not a verbal summary.
Our technicians are background-checked, uniformed, and identified by name before arrival under Haven Standard Clause 3: Verified Crews. They arrive with professional-grade equipment from Rotobrush, Nikro, and Honeywell, brands customers can verify independently.
The 365-Day Done Right Promise applies in Castle Hills exactly as it does everywhere we work. If the work is not right, we make it right, backed in writing on every job.
Our Air Duct Cleaning Services in Castle Hills

Residential Duct Cleaning
Castle Hills homes are almost exclusively 1,500-2,500 sq ft mid-century ranches built between 1950 and 1972. Many still run original or first-generation ductwork sized for window units or low-capacity furnaces, now mismatched to modern air handlers. Our residential cleaning addresses the heavy particulate buildup and pressure imbalances this creates, using negative-pressure extraction with HEPA filtration to capture debris without damaging deteriorating fiberglass liner.

Commercial Duct Cleaning
Castle Hills’s commercial base is small but concentrated along Northwest Military Highway and the retail corridors near the city limits. We clean commercial systems under the same H.A.V.E.N. Standard as our residential work, with written scopes and photo documentation scaled to the building size. For offices and retail in Castle Hills, we schedule around operating hours and deliver the photo record to the facilities contact.

Supply Duct Cleaning
Supply ducts in Castle Hills ranches often show dust streaks at the registers, a symptom of leaks in the return side pulling attic air into the system. We clean each supply run individually, photographing the interior before and after, then flag any register locations where pressure loss indicates a downstream leak that needs sealing.

Return Duct Cleaning
Return duct cleaning is especially critical in Castle Hills. The original panned-floor returns common in these mid-century homes separate from the plenum over decades, dumping attic dust and cedar pollen directly into the air handler. We inspect returns with video first, clean with source removal under negative pressure, and document any structural failures that require repair before the system is resealed.

Full System Cleaning
A Full System Cleaning in Castle Hills means every supply run, every return run, the plenum, and the air handler cabinet, photographed before and after. Given the age of the housing stock, this is often the right scope for first-time cleaning on a Castle Hills property. We price it as one flat rate per system, agreed in writing before we remove the first register.

Video Inspection
Our Video Inspection service uses a borescope camera to show the interior condition of ducts without disassembly. In Castle Hills, this often reveals collapsed flex-duct sections, disconnected panned-floor returns, or deteriorating fiberglass liner that cleaning alone won’t fix. The video becomes part of the job record, and we quote any needed repairs separately with the same written-price protocol.

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.
Before
AfterTrusted Brands We Service in Castle Hills
Our equipment roster includes Rotobrush agitation systems, Nikro negative-pressure vacuums, and Honeywell media filters, among other professional-grade tools from Abatement Technologies, Aprilaire, and Guardsman. Castle Hills customers can look up these brands independently to verify specifications. We stock common replacement components for the HVAC brands typically paired with mid-century duct systems in this area, which shortens turnaround when a cleaning reveals a part that needs replacement.
Common Air Duct Cleaning Problems We See in Castle Hills Homes

- Separated panned-floor returns. The original returns in Castle Hills ranches were often built from panned floor joists. After 50-70 years, the seal between the return and the air handler plenum fails, pulling 130°F attic air and decades of dust into the system. Video inspection finds it. Cleaning without resealing it just leaves the path open.
- Collapsed inner flex-duct liner. First-generation flex duct in Castle Hills attics has often collapsed internally, reducing airflow to back bedrooms while the blower motor works harder. The camera shows the restriction. We quote replacement separately under Haven Standard Clause 1.
- Deteriorating fiberglass duct liner. The original liner in these mid-century systems breaks down into a permanent particulate source. Aggressive cleaning tears it worse. We assess liner condition with the borescope first and adjust our agitation method to the material we’re facing.
- Cedar pollen loading post-December. The Hill Country cedar season runs December through February with some of the highest pollen counts in the United States. Castle Hills homes seal up tight, recirculating that load through ducts that already have buildup. Post-season cleaning is a genuine annual need here, not a sales pitch.
Pricing for Air Duct Cleaning in Castle Hills, TX
A typical Residential Duct Cleaning in Castle Hills runs $380-$620 for a single system in a 1,500-2,500 sq ft home. Full System Cleaning, which includes supply and return runs plus the plenum and air handler cabinet, ranges $520-$780. Video Inspection alone is $180-$260 when booked separately, or included in the Full System scope at no additional charge. Commercial work is quoted per system after a walkthrough.
What moves the number: the number of duct runs, accessibility of the air handler (attic vs. closet), whether the system has been cleaned before, and what the video inspection reveals about liner condition or disconnected joints. We deliver one flat price per system, agreed in writing before work starts, under Haven Standard Clause 1. No per-vent pricing. No add-ons after the truck is in the driveway.
Bring a competitor’s written estimate. We’ll put our number next to it for a Free Second Opinion at no cost.
We Also Serve Cities Near Castle Hills

Our crews work throughout the San Antonio metro, including Air Duct Cleaning in Castle Hills and the surrounding cities of San Antonio, Alamo Heights, Terrell Hills, and Leon Valley. The same written-price protocol, photo documentation, and 365-Day Done Right Promise apply in every service area.
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 - Air Duct Cleaning in Castle Hills

Every 18-24 months for most Castle Hills ranches, and annually if residents have cedar pollen sensitivity. The combination of 1950-1972 duct stock, Hill Country pollen loads, and attic temperatures that accelerate liner deterioration means these systems accumulate debris faster than newer flex-duct builds in suburbs like Stone Oak. Post-cedar-season cleaning in March is the optimal timing for allergy-prone households. Call (726) 600-7155 for a written estimate on your next service interval.
Yes, for any system modification beyond cleaning. Castle Hills is an incorporated city with its own building and mechanical permit requirements, separate from San Antonio. Contractors who assume a San Antonio license covers all work in Castle Hills can leave modifications out of compliance. CleanRun pulls City of Castle Hills permits on all duct repair and sealing jobs that alter the system. Call (726) 600-7155 and we’ll confirm whether your scope requires a permit.
It loads the system with microscopic pollen particles that settle in existing duct buildup and recirculate through sealed winter homes. Castle Hills sits on the edge of the Hill Country where Ashe juniper counts peak from December through February. Ducts with debris act as reservoirs, releasing pollen with every cycle long after outdoor counts drop. Post-season source removal with HEPA filtration is the effective response. Call (726) 600-7155 to schedule after the cedar peak.
The 1950-1972 ranch stock requires slower, more careful work. Original panned-floor returns need inspection before cleaning. Deteriorating fiberglass liner limits agitation intensity. Collapsed flex sections must be identified with video before they tear. These are not obstacles to upsell around; they’re material conditions that change how the job is executed. We price the actual scope, not a square-footage guess. Call (726) 600-7155 for a written quote on your specific system.
Yes, and outbuilding vents often need it more frequently. Detached garages, guest houses, and workshop dryers in Castle Hills properties vent through longer runs with more elbows, creating lint accumulation points that standard residential routing doesn’t have. We clean dryer vents as a separate service, photographed before and after, and flag any run that exceeds manufacturer length limits. Call (726) 600-7155 for a written price on your main residence and outbuilding vents.
We pulled a full-system job on a 1968 ranch off West Castano Avenue where the original panned-floor return had separated from the air handler plenum, dumping attic dust straight into the supply and return ducts. After video inspection found the collapsed inner liner on the 6-inch flex run to the back bedrooms, we ran source removal with Rotobrush agitation tools under negative pressure with HEPA filtration, then re-sealed the return and re-banded the flex. Static pressure at the blower motor dropped and the homeowner stopped seeing dust streaks at the registers within the first week.
Castle Hills is a small, independent enclave city developed almost entirely between the 1950s and early 1970s and completely surrounded by San Antonio, meaning its housing stock is unusually uniform and aging. A large share of homes still have their original sheet-metal or early flex-duct systems that were sized for window units or low-capacity furnaces, yet now serve modern high-efficiency air handlers, creating mismatched pressure, duct deterioration, and heavy particulate buildup that makes professional cleaning both more urgent and more technically involved than in newer suburban neighborhoods. Add the separate City of Castle Hills permit requirements, and it’s clear why a generic San Antonio approach falls short here.
Ready for a written price before any work starts? Call CleanRun Duct Repair & Cleaning at (726) 600-7155. We’ll deliver a flat-rate quote for your Castle Hills system, schedule background-checked technicians under Haven Standard Clause 3: Verified Crews, and leave you with a Documented Photo Record of every duct run plus the 365-Day Done Right Promise in writing.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Castle Hills since 2013.




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