Air Duct Cleaning in San Antonio - One Price Per System, Agreed Before We Start

Air Duct Cleaning in San Antonio, TX

Whole-system HVAC cleaning in San Antonio typically runs $450-$850 for a single-family home, with most jobs scheduled within a week. We’re CleanRun Duct Repair & Cleaning, and we dispatch crews from our San Antonio office to handle the accelerated duct contamination that comes with nine months of continuous cooling, cedar pollen surges, and attic temperatures that cook flex duct at 140-160°F. Every job starts with a written price before we touch a panel, and every duct run is photographed before and after. Call (830) 549-6847 for a free estimate.

Call (830) 549-6847

Why San Antonio Homes Are Different

San Antonio sits at the epicenter of Texas’s “Cedar Fever” belt. The Ashe juniper blanketing the Hill Country north and west of the city releases record pollen loads December through February, driving fine allergen particles deep into residential duct systems running heat, then recirculating those particles all winter. That seasonal surge, combined with a nine-month cooling season, means San Antonio duct systems degrade and contaminate faster than comparable Texas metros.

The housing stock tells the rest of the story. Inner-loop neighborhoods and corridors along Loop 410 and 1604 are dominated by 1970s-1990s slab-on-grade tract construction with ductwork routed through unconditioned attics, a consequence of shallow Edwards limestone that makes below-slab routing impractical. Northward expansion into Stone Oak, Alamo Ranch, and Helotes added large volumes of flex-duct systems now 20-30 years old, with inner liners and collar connections brittle from years of extreme attic heat cycling.

Periodic Gulf moisture surges push relative humidity to 80-90%, creating condensation on cold duct surfaces in hot attics and setting up mold colonization inside flex-duct liner seams. On the South Side and near Fort Sam Houston, crews regularly encounter original galvanized sheet-metal ducts packed with decades of caliche dust layered over heavy pest loads, while northwest-side attics routinely show flex duct completely detached at boot connections, pulling raw 150°F attic air directly into supply runs.

Our Main San Antonio Services

San Antonio homeowners call us most often for these three services, each with its own dedicated page and pricing:

Air Duct Cleaning in San Antonio

We clean the full supply and return network, from plenum (the main distribution box) through every duct run to each register, using negative-pressure extraction that pulls debris out rather than pushing it deeper. In San Antonio, we typically find cedar pollen packed into boot connections and caliche dust settled in low points of older galvanized systems. Every job includes a Documented Photo Record of every run, before and after, delivered as part of your standard job record. Air Duct Cleaning in San Antonio

Dryer Vent Cleaning in San Antonio

Lint accumulation accelerates in San Antonio’s hard-water environment, where mineral residue from evaporation clings to vent walls and traps additional debris. We clean the full vent path from dryer to termination, verify airflow with a manometer, and photograph the before condition. Blocked dryer vents are a leading cause of residential fires; our crews are trained to identify improper terminations common in 1980s-1990s tract construction. Dryer Vent Cleaning in San Antonio

Duct Repair & Sealing in San Antonio

Attic heat cycling in San Antonio destroys flex-duct collar tape and causes inner liner separation. We replace damaged sections, seal connections with mastic (a brush-applied sealant that outlasts tape), and pressure-test the system to verify results. Duct sealing alone can reduce HVAC runtime 15-25% in homes with leaky attic distribution, a common finding in Alamo Ranch and Helotes builds from the 2000s. Duct Repair & Sealing in San Antonio

Before

After

HVAC Cleaning in San Antonio

San Antonio’s near-continuous cooling demand means evaporator coils, blowers, and condensers accumulate particulate load far faster than in northern climates, and the combination of cedar pollen, caliche dust, and Gulf moisture creates a uniquely aggressive contamination profile inside the air handler. HVAC Cleaning addresses the components that move and condition air, not just the ducts that distribute it.

Evaporator Coil Cleaning

Signs you need it

Ice formation on the coil, reduced airflow from registers, or a musty odor when the AC first cycles on.

What it costs in San Antonio

Evaporator coil cleaning typically runs $280-$420 in San Antonio, depending on accessibility and contamination level.

How we do it

We remove the access panel, apply foaming cleaner to the coil fins, rinse with low-pressure water to avoid fin damage, and photograph the coil before and after.

Blower Cleaning

Signs you need it

Vibration or noise from the air handler, uneven airflow between rooms, or dust streaking from supply registers.

What it costs in San Antonio

Blower assembly cleaning typically runs $220-$350 in San Antonio.

How we do it

We remove the blower wheel and housing, clean each blade with compressed air and solvent, balance the assembly, and document with before-and-after photos.

What HVAC Cleaning Costs in San Antonio

How do I know my HVAC components are actually dirty?

We photograph every component before touching it, and you receive those images as part of your Documented Photo Record. If the coil shows no significant buildup, we’ll tell you and adjust the scope before work begins.

Can HVAC cleaning reduce my summer electric bills?

Yes, a clean coil and blower can improve system efficiency 10-15%, which matters in San Antonio where AC runs nine months annually. Call (830) 549-6847 for a free estimate.

Air Quality & Sanitizing in San Antonio

San Antonio’s position at the Balcones Escarpment means cedar, oak, and ragweed pollen events are intense and prolonged, consistently overloading HVAC filters and depositing allergens throughout supply systems, while attic humidity spikes create conditions for mold colonization inside duct liner seams. Air Quality & Sanitizing targets biological contamination that mechanical cleaning alone cannot address.

Mold Treatment

Signs you need it

Visible mold at registers, a persistent earthy odor when the system runs, or recent water intrusion into ductwork.

What it costs in San Antonio

Mold treatment typically runs $380-$650 in San Antonio, depending on affected duct footage and whether the plenum is involved.

How we do it

We apply an EPA-registered antimicrobial to affected surfaces, fog the full system with a non-residue sanitizer, and verify treatment with post-application photo documentation.

UV Light Installation

Signs you need it

Recurring mold despite cleaning, high allergy sensitivity in household members, or a system in a humid attic with chronic condensation.

What it costs in San Antonio

UV light installation typically runs $320-$480 in San Antonio, including the lamp and electrical connection.

How we do it

We mount a UV-C lamp in the supply plenum where it irradiates passing air and coil surfaces, wire it to the blower circuit for automatic operation, and show you the installed position before closing the panel.

What Air Quality & Sanitizing Costs in San Antonio

Does UV light actually kill mold in ducts?

UV-C light at 254 nanometers destroys mold spores and bacteria in the air stream and on irradiated surfaces; it does not reach shadowed areas, so we pair it with physical cleaning for complete results. Call (830) 549-6847 for a free estimate.

Is the sanitizing solution safe for children and pets?

We use EPA-registered products rated for HVAC application at residential concentrations; the system is flushed and dried before restart, with no residual airborne chemical.

Brands We Service in San Antonio

We clean and service systems from every major manufacturer, with common parts stocked locally for faster turnaround on repairs. Equipment on our trucks includes Rotobrush, Nikro, and Honeywell tools, and we carry Aprilaire media filters for replacement during service visits. our brands

Pricing for Air Duct Cleaning in San Antonio, TX

Neighborhoods We Serve in San Antonio

We schedule San Antonio jobs with routing efficiency across these areas, typically offering appointments within 5-7 business days:

• Stone Oak
• Alamo Ranch
• Helotes
• Terrell Hills
• Olmos Park

Dispatch is coordinated from our San Antonio office; crews carry the full equipment roster and do not return to a central depot between jobs.

Service Area - Cities Near San Antonio

CleanRun crews serve the full San Antonio metro and surrounding communities including Converse, TX, Universal City, TX, Schertz, TX, and Cibolo, TX. Scheduling and routing are managed from our San Antonio office to minimize transit time and keep appointment windows reliable.

FAQs About Air Duct Cleaning in San Antonio