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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Before
AfterTrusted HVAC Cleaning for San Antonio Homeowners
HVAC Cleaning in San Antonio typically addresses the evaporator coil, blower assembly, condenser coils, and air handler components that standard duct cleaning does not touch. A complete system cleaning runs $280-$680 for most San Antonio homes, depending on which components need service and how accessible they are. We deliver a written price before any work starts, and every job concludes with a documented photo record of what was found and what was cleaned.
Since 2013, CleanRun Duct Repair & Cleaning has completed HVAC cleaning in more than 52,000 homes, every one with a written price agreed before a single panel came off and a photo record delivered when the crew left. San Antonio’s combination of caliche dust, high pollen counts from the Hill Country, and extended cooling seasons creates a specific maintenance profile that differs from Houston’s humidity or Dallas’s freeze cycles. We’ve found that homeowners in Alamo Heights, Castle Hills, and Terrell Hills who bought between 2015 and 2025, particularly those with variable-speed systems, need component-level cleaning every 3-5 years, not the decade-long intervals some manufacturers suggest. Our technicians are background-checked, uniformed, and identified by name before arrival under Haven Standard Clause 3: Verified Crews. Call (726) 600-7155 to schedule a free estimate with a written price.
What Our HVAC Cleaning Service Includes
Evaporator Coil Cleaning
The evaporator coil sits inside your air handler or furnace plenum, the large metal box that conditions air before it enters your ductwork. In San Antonio, we regularly find these coils restricted by a mat of caliche dust, pollen, and microbial growth that reduces airflow by 15-30% before homeowners notice any temperature change. Our process uses foaming cleaners and low-pressure rinsing that removes buildup without bending the delicate aluminum fins, with the before-and-after photos delivered as part of your documented photo record.
Blower Cleaning
The blower, or fan assembly, pushes conditioned air through every duct run in your home, and its blades collect the same debris that bypasses your filter over years of operation. When blower wheels become unbalanced by buildup, they draw more amperage, run hotter, and fail prematurely, a pattern we see frequently in Leon Valley and Kirby homes with pets or recent remodeling. We remove the entire blower assembly when accessible, clean the wheel and housing with compressed air and contact-safe solvents, and photograph the amp draw before and after to document performance restoration.
Condenser Cleaning
Your condenser, the outdoor unit with the large fan, rejects heat to the outside air through aluminum fins that clog with cottonwood seed, grass clippings, and the fine limestone particulate that blows through San Antonio each spring. A dirty condenser raises head pressure, increases electrical consumption, and can trip high-pressure safety switches on the hottest August afternoons when you need cooling most. We use foaming cleaners and fin combs on units we can access safely, documenting fin condition and any corrosion we find near the coastal- influence zones of Live Oak and HVAC Cleaning - Universal City.
Air Handler Cleaning
The air handler is the complete indoor cabinet containing your blower, evaporator coil, and often auxiliary heat strips or a furnace heat exchanger, the central station where all conditioned air originates. In San Antonio’s newer subdivisions, particularly in Selma and HVAC Cleaning in Converse, we’ve found construction debris inside air handlers that was never removed during initial installation, including drywall dust and insulation fragments. Our cleaning addresses the entire cabinet interior, drain pan, and secondary drain line, with photos of the drain pan condition included in your job record to document whether microbial growth was present.
Heat Exchanger Cleaning
The heat exchanger separates combustion gases from your breathable air in gas furnaces, and any restriction affects both efficiency and safety by altering flame patterns and exhaust flow. We inspect heat exchangers with borescope cameras during HVAC cleaning, documenting any soot buildup, rust scaling, or cracks that would require repair or replacement before the next heating season. This inspection is included in our standard scope when we disassemble the furnace for cleaning, not sold as an add-on.
Coil Treatment
After mechanical cleaning, we apply EPA-registered coil treatments that inhibit microbial regrowth on evaporator and condenser surfaces without leaving residues that affect air quality. These treatments are not substitutes for physical cleaning, a distinction we make clear in our written scope, but they extend the interval before significant buildup returns, particularly in San Antonio’s humid months when condensate pans stay wet for weeks. We specify the exact product by name in your written price, typically Guardsman or Honeywell treatments, so you can verify its registration and suitability before approving the work.
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.
Brands We Service for HVAC Cleaning
We clean HVAC components from every major manufacturer installed in San Antonio homes since 2013. We’ve serviced hundreds of Trane and Carrier systems, including the variable-speed models common in Alamo Heights and Terrell Hills renovations, and we stock OEM cleaning adapters for their proprietary coil geometries. Our crews are familiar with the modular cabinet designs Lennox uses, which require specific disassembly sequences to access blowers without damaging control boards, and we’ve developed documented procedures for these that our technicians follow on every job.
Rheem and Ruud units, popular in Castle Hills and Windcrest for their price-to-performance ratio, often have downflow configurations in attic installations that require additional safety protocols for condensate handling during cleaning. Goodman and Amana systems, frequently found in first-time buyer homes in Converse and Live Oak, benefit particularly from blower cleaning because their original installations often used lower-grade filters that allowed more debris penetration. Whether you have these brands, a Daikin mini-split, or any other make, we can access the components, clean them properly, and document what we found.
BeforeAfterSigns You Need HVAC Cleaning Right Now
- Uneven cooling or heating between rooms. When your blower wheel or evaporator coil is partially restricted, the system cannot generate enough static pressure to push air to the farthest duct runs. We measure this with a manometer during our estimate and can show you the pressure differential before recommending which components need cleaning.
- System runs longer than it used to reach the thermostat setpoint. Extended run times often indicate reduced heat transfer efficiency at the coil level, not thermostat malfunction. In San Antonio’s 100-degree summers, a 20% reduction in coil efficiency can add hours of unnecessary runtime daily.
- Musty or sour odors when the system first cycles on. Microbial growth on wet evaporator coils or in dirty drain pans produces volatile organic compounds that enter your supply air. The smell typically dissipates after a few minutes because the growth dries temporarily, but the source remains until mechanically removed.
- Visible dust puffing from supply registers when the fan starts. This indicates debris accumulation in the plenum or ductwork downstream of the air handler, often combined with a dirty blower that cannot maintain steady airflow. The puff is particulate that settled in ducts because airflow was too weak to carry it to the filter.
- Recent energy bills increased without rate changes or usage shifts. Dirty coils and blowers force compressors and fan motors to work harder for the same output. We’ve documented 12-18% efficiency restoration after complete HVAC cleaning in San Antonio homes where components had not been serviced in 5+ years.
Our HVAC Cleaning Process - Step by Step
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Written price delivered before work begins. We inspect your system, identify which components need cleaning based on visual and measured evidence, and provide a written price under Haven Standard Clause 1. No work starts until you approve the scope and price in writing. This is not a policy; it is a practice we’ve held on all 52,000+ jobs since 2013.
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System shutdown and safety lockout. We disconnect electrical power and verify zero energy state with a multimeter, then place lockout tags per our safety protocol. For gas furnaces, we shut the gas valve and verify no leakage with electronic detection before disassembly begins.
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Component disassembly and photographic documentation. Each component is photographed before cleaning, with images that show the specific type and location of buildup. In San Antonio, we commonly document caliche dust caking, pollen matting, and the white mineral scale that forms from condensate evaporation on hard water.
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Mechanical cleaning with trade-specific tools. Evaporator coils receive foaming cleaner and low-pressure rinse; blower wheels are removed and cleaned with compressed air and contact-safe solvents; condensers are treated with foaming cleaner and fin-combed straight. We use Rotobrush and Nikro equipment selected for the specific component geometry.
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Reassembly, operational verification, and photo record delivery. We reassemble with new gaskets where original seals were degraded, run the system through a complete cycle, measure amp draw and static pressure against our baseline, and deliver your documented photo record showing before, during, and after conditions of every component we touched.
How Much Does HVAC Cleaning Cost in San Antonio?
A typical evaporator coil cleaning in San Antonio runs $180-$340 depending on accessibility, whether the coil is in an attic air handler or a closet-mounted furnace, and how much buildup is present, so how much HVAC Cleaning costs varies by home. Blower cleaning adds $120-$220 when done with the coil, or $160-$280 as a standalone service. Condenser cleaning ranges $80-$160 for standard residential units, with additional cost for multi-zone systems or units requiring ladder access above 8 feet. A complete HVAC cleaning addressing all major components typically totals $280-$680 for single-system homes in San Antonio, Helotes, and Leon Valley.
Several factors move prices within these ranges. Location of the indoor unit matters: attic installations in Windcrest and Kirby require additional time for safe access and thermal protection of the work area. The degree of buildup affects chemical and labor time; a coil with 5 years of accumulation since new construction in Selma takes longer than a system cleaned 3 years ago. Multi-speed and variable-capacity systems have more complex blower assemblies that require additional disassembly time. We specify all of this in your written price before work begins, so the number you approve is the number on your invoice.
To avoid overpaying, reject any quote that cannot explain what components are included. Some San Antonio competitors advertise “HVAC cleaning” that consists only of spraying foaming cleaner into a condenser and wiping the cabinet exterior. Ask whether the estimate includes blower removal, coil rinsing, drain pan treatment, and photographic documentation. Our written scope specifies each component by name, the cleaning method, and the products used, so you can compare directly against any other quote. We also offer a Free Second Opinion on any written estimate: bring us a competitor’s scope, and we’ll put our number next to it in writing.
Our free estimate includes full system inspection, written price, and no obligation to proceed. Call (726) 600-7155 to schedule.
HVAC Cleaning Near San Antonio - Our Service Area
We provide HVAC cleaning throughout Bexar County and adjacent communities, with typical scheduling availability of 2-4 business days for standard appointments. Our service area includes HVAC Cleaning in Alamo Heights, HVAC Cleaning in Castle Hills, Terrell Hills, Leon Valley, Kirby, Windcrest, Helotes, Live Oak, Converse, Universal City, and Selma. Homes in the I-10 corridor toward Boerne or the I-35 corridor toward New Braunfels may require additional scheduling coordination. Wherever your home is located, the same Haven Standard applies: written price first, documented photo record last, 365-Day Done Right Promise throughout.
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.
Frequently Asked Questions - HVAC Cleaning in San Antonio
HVAC cleaning addresses the mechanical components that condition your air, including the evaporator coil, blower assembly, condenser, and air handler cabinet, while air duct cleaning removes debris from the supply and return ductwork that distributes air through your home. Duct cleaning does not touch the coils or blower that actually heat and cool the air, so the two services complement each other but do not substitute. Many San Antonio homeowners who had their ducts cleaned still have restricted coils and dirty blowers that limit system performance.
A single-component cleaning, such as evaporator coil service, typically takes 1.5-2.5 hours including setup, disassembly, cleaning, reassembly, and verification. A complete system cleaning addressing all major components requires 3-5 hours, with additional time for attic installations or systems with significant buildup. We schedule specific arrival windows, not all-day windows, and we do not rush the verification step that confirms proper operation before we leave. Call (726) 600-7155 for availability that fits your schedule.
Complete HVAC cleaning for a standard single-system home in San Antonio typically runs $280-$680, with individual components ranging from $80 for condenser cleaning to $340 for heavily restricted evaporator coils. The written price we deliver before work begins includes all labor, materials, cleaning agents, and your documented photo record, with no per-vent or per-register add-ons. We do not use teaser pricing or $79 coupons that expand dramatically once work starts. For an exact quote on your specific system, call (726) 600-7155 for a free estimate.
Yes, we clean HVAC components from Trane, Carrier, Lennox, Rheem, Ruud, Goodman, Amana, Daikin, and every other major manufacturer installed in San Antonio homes. Our crews carry cleaning adapters and documented procedures for the specific coil geometries, cabinet fastener types, and control board placements that vary by brand. We do not perform warranty repairs, but our cleaning methods comply with manufacturer maintenance specifications and will not void existing warranties.
We do not advertise same-day or emergency HVAC cleaning because proper component cleaning requires disassembly, dwell time for cleaning agents, and verification that cannot be rushed without compromising quality. For system failures that require immediate cooling restoration, we recommend contacting an HVAC repair contractor first, then scheduling our cleaning service once the system is operational. If your system is running but performance has declined noticeably, we can typically schedule within 2-4 business days.
Every HVAC cleaning is backed by our 365-Day Done Right Promise: if the work is not right, we make it right, documented in writing on every job, not subject to manager approval or claim denial. Haven Standard Clause 5: Accountable Work requires this written guarantee. If you experience the same symptom we addressed within 365 days, we return to inspect, identify any deficiency in our original work, and correct it at no charge. This applies to cleaning quality, not to new component failures or unrelated system issues that develop after our visit.
Clear a 3-foot workspace around your indoor unit and ensure we have safe access to the electrical panel that serves it. If your unit is in a closet, remove stored items from the closet floor. For outdoor condenser cleaning, trim vegetation to 18 inches from the unit and secure pets away from the work area. We bring our own drop cloths, tools, and cleaning agents. You do not need to be present for the entire service, but we do require someone over 18 available to approve the written price before work begins and review the photo record when we finish. Call (726) 600-7155 to schedule.
Schedule Your HVAC Cleaning Service in San Antonio Today
Call (726) 600-7155 to schedule your free estimate. You’ll speak with a live person, not an automated system, and we’ll arrange a specific arrival window that respects your time. Your technician will arrive in uniform, identified by name, inspect your system, and deliver a written price before any work begins. Every job includes a documented photo record and is backed by our 365-Day Done Right Promise. There’s no obligation to proceed with the estimate, and we offer a Free Second Opinion on any competitor’s written quote.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving San Antonio since 2013.