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 Air Duct Cleaning Across San Antonio
Most San Antonio homeowners pay $350-$650 for a complete residential air duct cleaning, with rural properties on unpaved roads typically needing service every 3 years rather than the standard 5-7 due to accelerated dust loading. Our Air Duct Cleaning team dispatches from our San Antonio metro office and covers the full region, from the historic neighborhoods near the River Walk to rural spreads off FM 1560 near Helotes. We’re familiar with the caliche dust that blows off limestone roads, the attic temperatures that hit 140-160°F in July, and the cedar fever pollen that infiltrates duct systems each winter. Call (469) 972-3151 for a written estimate before any work begins.
Why Kestrel Air Duct Cleaning Is San Antonio’s Preferred Air Duct Cleaning Company
We’ve built our reputation in San Antonio by doing what most contractors won’t: putting the price in writing before touching a single vent, then backing the work with a 365-Day Done Right Promise. Our technicians are background-checked, uniformed, and trained on Rotobrush, Nikro, and Abatement Technologies equipment, not repurposed shop vacs. Calls route to a live person 24/7, never a voicemail queue, because we know San Antonio homeowners have already dealt with no-shows and price changes at the door.
Our San Antonio customers consistently mention three things in feedback: we arrive in the window we gave, we leave the job site cleaner than we found it, and the written price matches the final invoice. The Kingswell Way governs every visit, from Leon Valley to Universal City. That means say the price, show up on time, leave it clean, put the guarantee in writing, and come back if it fails. No exceptions.
Dispatch and scheduling are coordinated from our San Antonio office, so crews know local conditions without consulting a map. They understand which 1970s tract homes in Converse sit on shifting Vertisol clay, where foundation movement cracks rigid duct sections, and why a home near Joint Base San Antonio with three previous tenants in six years probably hasn’t seen a duct cleaning in a decade.
Air Duct Repair in San Antonio
Air Duct Repair in San Antonio addresses the disconnected, cracked, or degraded duct sections that cost homeowners hundreds in wasted cooling each summer. Our technicians find separated joints in attic runs where 150°F heat has cooked mastic into powder, crushed flex ducts from foundation shift on expansive clay soils, and rusted metal connections in older homes near Alamo Heights where decades of humidity intrusion took their toll. Most repairs run $200-$450 for standard reconnections and sealing, with extensive replacement of damaged rigid or flex ducting reaching $600-$1,200 depending on attic accessibility and linear footage.
Disconnected Attic Runs
San Antonio’s slab-on-grade construction puts all ductwork above the ceiling, where summer attic heat degrades tape adhesives and causes liner separation. We inspect with video cameras, reconnect using mechanical fasteners and fresh mastic, then verify airflow at each register with a digital manometer.
Foundation-Shift Damage
Homes on Vertisol clay in Leon Valley, Converse, and Universal City experience seasonal foundation movement that cracks rigid duct sections or pulls flexible connections loose. Our repair includes structural support brackets where needed and pressure-tested seals that tolerate continued minor movement.
Ductwork Cleaning in San Antonio
Ductwork Cleaning in San Antonio removes the accumulated caliche dust, pollen, pet dander, and construction debris that load residential systems faster here than in neighboring Austin or Houston. Our process combines Rotobrush rotary brush agitation, mechanical whipping tools that strike duct walls to dislodge adhered particles, and Nikro negative-air extraction that pulls contaminants out under controlled pressure. Abatement Technologies HEPA filtration captures loosened debris before it re-enters your living space. A typical whole-system cleaning for a 2,000-square-foot San Antonio home runs $350-$650, with larger homes or systems with significant buildup ranging $700-$950.
Negative-Air Extraction Process
We connect a Nikro high-volume vacuum to your main trunk line, creating suction throughout the system while mechanical agitation breaks debris free. This isn’t a shop vac at a vent cover. It’s contained, measured airflow that removes particles without redistributing them into your home.
Video Verification
Before-and-after camera inspection documents the condition of your ductwork. San Antonio homeowners see exactly what was in their system and what remains after cleaning. No guesswork, no trust-me claims. The footage is yours to keep.
Trusted Brands We Service in San Antonio
We clean and service duct systems connected to all major HVAC brands, and we stock Honeywell and Aprilaire filtration products for San Antonio homeowners who want to maintain clean air between professional cleanings. Our technicians carry common replacement components on their vans, so most repairs don’t require a return trip. For properties with specialized indoor air quality needs, we also source Guardsman filtration media and can discuss upgrade paths during your estimate visit. Parts availability matters in San Antonio’s heat, a failed blower motor in August isn’t something you wait on.
Common Air Duct Cleaning Problems We See in San Antonio Homes
- Caliche dust infiltration from unpaved roads. Rural properties off FM 1560, near Helotes, and throughout Bexar County’s outer reaches accumulate abrasive calcium carbonate dust at 2-3 times the rate of paved-street homes. Standard cleaning intervals don’t apply.
- Mold colonization in attic supply ducts. San Antonio’s spring humidity spikes and September “second summer” rains create condensation at poorly sealed joints where 55°F conditioned air meets 95°F attic air. Active mold becomes a documented local problem, not a hypothetical risk.
- Layered cedar fever pollen in return systems. December through February mountain cedar pollen is finer than most filtration captures. It infiltrates ductwork, embeds in existing dust layers, and continues triggering allergic response for months after the season ends.
- Disconnected outbuilding systems cross-contaminating main house air. Detached garage workshops, pool houses, and guest casitas with shared ducting draw in extra pollen and dust, then distribute it throughout the primary residence via return air pathways.
Pricing for Air Duct Cleaning in San Antonio, TX
A typical residential duct cleaning in San Antonio runs $350-$650 for a complete supply and return system in a home up to 2,500 square feet. Larger homes or those with significant debris accumulation, multiple HVAC zones, or outbuilding systems connected to the main ductwork range $700-$950. Commercial duct cleaning starts around $1,200 and scales with linear footage and access complexity.
What moves the price: number of supply and return vents, presence of mold requiring antimicrobial treatment, accessibility of attic ductwork, and whether video inspection reveals damage needing repair before cleaning proceeds. We give one flat price per system, agreed in writing before work starts. No per-vent add-ons, no equipment charges that appear after we’re in your home. Every estimate is free, and every quote includes the 365-Day Done Right Promise in writing. Call (469) 972-3151 for your specific number.
We Also Serve Cities Near San Antonio
Our crews regularly work Air Duct Cleaning in San Antonio and surrounding communities including Converse, Universal City, Schertz, and Helotes. Universal City and Converse homes near Joint Base San Antonio see particularly high turnover and often need comprehensive cleaning after multiple short-term tenants. Schertz properties on the county line contend with similar caliche dust loading from rural roads, while Helotes spreads into Hill Country terrain with distinct pollen and dust profiles.
Serving San Antonio, TX - Our Local Coverage Area
We’re based in the San Antonio 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 San Antonio
Every 3 years, not the standard 5-7. Caliche dust from limestone roads and driveways loads ducts at 2-3 times the rate of paved-street properties, and San Antonio’s 9-10 month cooling season keeps systems circulating that abrasive particulate continuously. We recently serviced a rural property off FM 1560 near Helotes where the homeowner’s supply and return ducts were packed with caliche dust tracked in from a long unpaved driveway. Our tech used a camera inspection and agitation tools under negative pressure with HEPA filtration to remove the abrasive buildup, then sealed several disconnected joints in the attic where 150°F heat had caused mastic failure. The blower motor amp draw dropped back to spec, and the homeowner scheduled us for a 3-year interval instead of the typical 5-7 years. Call (469) 972-3151 to discuss your property’s specific conditions.
San Antonio’s combination of slab-on-grade construction, 140-160°F attic temperatures, and expansive clay soils creates unique stress on duct materials. Mastic adhesives fail prematurely in that heat, flex-duct liners degrade faster, and foundation movement on Vertisol clay cracks or disconnects rigid sections. Austin and Houston share some clay soils, but neither matches San Antonio’s sustained attic heat combined with caliche dust abrasion. Call (469) 972-3151 for a video inspection if your system is 10+ years old.
Yes. Mountain cedar pollen is extremely fine, 20-30 microns, and infiltrates through gaps in return air pathways, around filter racks, and through inadequate filtration. Once inside, it embeds in existing dust layers and continues triggering allergic response long after the December-February season ends. Professional cleaning with HEPA-contained extraction removes accumulated pollen reservoirs. Call (469) 972-3151 before next cedar season to assess your system’s pollen load.
It means your cleaning follows the National Air Duct Cleaners Association’s protocol for mechanical agitation, negative-air extraction, and containment, not just vacuuming at vent covers. For San Antonio homeowners, this matters because NADCA-compliant cleaning addresses the caliche dust and pollen loading that’s specific to our region, rather than applying a generic surface treatment. Kestrel technicians follow these standards on every job, documented with before-and-after video. Call (469) 972-3151 to request NADCA-compliant service.
Humidity intrusions during March-May and September-October create condensation at unsealed duct joints where cold supply air meets warm attic surfaces. This moisture supports active mold colonization inside ductwork, a documented local problem in San Antonio’s climate pattern. Proper cleaning includes identifying these moisture points, sealing joints with appropriate mastics, and applying antimicrobial treatment where mold is present. Call (469) 972-3151 if you notice musty odors when your AC cycles on.
Written by Dale Whitmore, Owner at Kestrel Air Duct Cleaning, serving San Antonio since 2004 under the Kingswell Guarantee.