Whole-home duct cleaning
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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.
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AfterHow Much Does HVAC Cleaning Cost in San Antonio?
HVAC cleaning in San Antonio typically costs between $325 and $650 for a complete system cleaning in 2026, with most homes in the 1,500 to 2,500 square foot range landing right around $400 to $550. Duct-only cleaning runs lower, usually $285 to $475 depending on the number of vents, while a full HVAC clean that includes the air handler, coils, blower motor, and supply/return plenums pushes toward the top of that range. The size of the home, the number of vents, and whether you’re adding sanitizer or filter upgrades all move the final number, but $400 to $550 is the realistic middle for a standard single-system home in this market.
Those numbers are specific to San Antonio, not a national average. Our climate here, with long cooling seasons and periodic dust from construction and cedar pollen, means coils load up faster than in milder regions, and that affects both what a cleaning covers and what it costs. Cardinal Air Duct San Antonio gives every customer a written price before any work starts, so the number on your estimate is the number you pay. No surprise add-ons at the door. Call (254) 347-3897 for a free estimate tailored to your system.
HVAC Cleaning Cost Breakdown (2026)
Here’s the line-item breakdown based on what we see across San Antonio, from Alamo Heights to Stone Oak, from the older duct layouts in Terrell Hills to newer flex-duct systems in Cibolo and Schertz:
| Service | Typical Price Range | What’s Included |
|---|---|---|
| Duct Cleaning Only (per system) | $285 – $475 | Supply and return ductwork, all vent registers, negative-pressure extraction |
| Full HVAC Cleaning (single system) | $325 – $650 | Ductwork, air handler, evaporator coil, blower motor, drain pan, plenums |
| Additional Systems (each) | $150 – $250 | Each extra AC/furnace beyond the first |
| Dryer Vent Cleaning | $89 – $149 | Full run from dryer to exterior vent cap |
| Sanitizer / Antimicrobial Treatment | $75 – $175 | Applied after cleaning, optional |
| Filter Replacement (standard media) | $15 – $40 | Basic 1″ to 4″ media filters |
| Coil Cleaning (if heavily fouled) | $75 – $150 | Evaporator coil deep clean beyond standard service |
For a typical San Antonio home with a single HVAC system and 10 to 14 vents, a full cleaning runs about $400 to $550. Two-story homes in areas like Alamo Ranch or The Dominion add $150 to $250 for the second system. Homes with original 1990s metal ductwork sometimes run slightly higher because those ducts held onto more debris over the decades, which means more time on the Rotobrush to get them genuinely clean.
What moves the price up or down? Mostly access. If your air handler sits in a tight attic crawl space, like we find in older Terrell Hills bungalows, that’s more labor. If your ductwork is unreachable in portions, extra access panels may be needed. Clean systems that had regular filter changes take less time, period. That’s just how the physics works.
What Affects HVAC Cleaning Pricing in San Antonio
- Home size and vent count. Every register and return grille adds time and coverage. A 12-vent home cleans faster than a 20-vent home. In San Antonio, the difference between a 1,400-square-foot ranch and a 3,200-square-foot stone-front off Bandera Road is often $150 to $200.
- Number of HVAC systems. A single downstairs unit is one price. A two-zone home with dedicated upstairs and downstairs systems means two air handlers, two sets of coils, two plenums, and more duct. Most builders in subdivisions like Stone Oak and Alamo Ranch planned for two systems once square footage passed 2,600 or so.
- Duct material and age. Rigid metal ducts from the 80s and 90s hold up well but need aggressive extraction. Flex duct pulls debris differently, and if it was poorly installed, it can snag tools and slow cleaning. Older homes near downtown and in established corridors like Vance Jackson have more metal; new builds are nearly all flex.
- Coil condition. San Antonio’s humidity breeds coil buildup fast. If the evaporator coil hasn’t been cleaned in years, it may need a separate deep cleaning that runs $75 to $150 extra. That coil is the single biggest driver of airflow and cooling capacity, so the upcharge is almost always worth it.
- Pets and smoking. Multiple indoor pets, especially long-haired breeds, load ducts with dander and hair. Homes where someone smoked indoors for years see residue on every surface the air touches. Both add time to the job and often make a sanitizer treatment after cleaning worth considering.
- San Antonio dust conditions. Between construction traffic, cedar and oak allergens, and long stretches of dry weather, our air carries more particulate than most cities. That’s not a sales pitch, it’s environmental reality. Systems here load up faster than in coastal or cooler markets, which is why some homeowners in San Antonio clean every 3 to 4 years rather than the 5 to 7 you might wait elsewhere.
None of these factors should be a mystery when you get a quote. Cardinal Air Duct San Antonio writes the price down, hands it to you before the first tool comes off the truck, and that price doesn’t shift because a tech found something mid-job. If additional coil work is needed, it’s discussed and approved by you before it happens. That’s the Relay Standard, and every independently owned location in the Relay Home Co. family operates under it. Our team in San Antonio is led by Omar Haddad, and Omar’s crews run the same professional-grade equipment across every job: Rotobrush rotary brush systems for agitation, Nikro HEPA vacuums for negative-pressure extraction. Negative-pressure extraction means every bit of loosened debris gets pulled into the vacuum, not pushed back into your living room.
How to Save on HVAC Cleaning
Saving money starts before the cleaning truck even arrives. Here’s what actually works in San Antonio:
- Change your filters on schedule. A coir or fiberglass filter loaded with dust makes the whole system work harder and fouls the coil faster. In San Antonio’s long cooling season, a 1-inch filter should be swapped every 30 to 60 days during peak use. Clean filters mean a faster, cheaper cleaning when you do schedule one.
- Bundle services. If your dryer vent hasn’t been cleaned in years, adding it to an HVAC cleaning usually saves $20 to $40 over booking separately. The tech is already on site with the right tools.
- Clean the easy stuff yourself. Vacuum your return grilles and vents monthly. Remove visible hair and dust from return covers. It costs you nothing and shortens cleaning time. It won’t clean the duct interior, but it reduces the load.
- Get a free estimate before you commit. You should never gamble on home service pricing. Cardinal Air Duct San Antonio gives free estimates by phone, with the actual price in writing before any work starts. Call (254) 347-3897 and you’ll get a real number, not a range with a shrug.
- Don’t skip the coil. Skipping coil work when it’s genuinely needed saves cash the day of the job and costs you more over the summer as the system struggles and your light bill climbs. A $100 coil cleaning often avoids a far more expensive service call or premature compressor failure later.
One more practical note: if your system hasn’t been cleaned in 5+ years and you live in a high-dust corridor like Leon Valley or near Loop 1604 construction zones, schedule the cleaning in spring before the cooling season kicks in. You’ll get better energy performance all summer and you won’t be competing for appointments in June and July.
FAQs – HVAC Cleaning Cost
How much does HVAC cleaning cost for a 2,000 square foot home in San Antonio?
For a typical 2,000-square-foot single-system home in San Antonio, a full HVAC cleaning runs $400 to $550 in 2026. That includes the ductwork, air handler, evaporator coil, blower, plenums, and all standard register cleaning. Homes with two systems on that square footage run $550 to $750 total. Call (254) 347-3897 for a free price based on your exact home.
Is HVAC cleaning worth the money?
HVAC Cleaning services in San Antonio run $325 to $650 and usually pay off through better airflow, lower summer cooling bills, and longer equipment life. Systems in this market run hard from April through October, and clean coils and blowers move more air with less strain. If your vents show dust streaks or the coil is visibly fouled, the cleaning cost is typically recoverable in energy savings and avoided repairs over 2 to 3 years.
Is it cheaper to clean or replace HVAC ductwork?
Cleaning is almost always cheaper. Duct cleaning in San Antonio runs $285 to $475 while complete duct replacement costs $2,500 to $6,000. Unless ducts are crushed, mold-contaminated beyond treatment, or torn, cleaning restores them at a fraction of replacement cost. A free estimate tells you which route your system actually needs.
How often should HVAC cleaning be done in San Antonio?
Most San Antonio homes need HVAC cleaning every 3 to 5 years. Homes with pets, smokers, recent construction dust, or cedar allergy sufferers may need it every 2 to 3. A 2,000-square-foot home cleaned every 4 years at $400 to $550 costs about $100 to $140 per year, which is modest compared to the average repair call on a neglected system.
Can you clean HVAC systems same-day in San Antonio?
Yes, same-day HVAC cleaning is often available through Cardinal Air Duct San Antonio, and a live person answers the phone 24/7 so you can check availability immediately. Most full cleanings take 3 to 6 hours depending on home size and system count. Call (254) 347-3897 to get a same-day or next-day window with a live trackable arrival time.
Pricing reflects the San Antonio market as of 2026. Cardinal Air Duct San Antonio offers free estimates – call (254) 347-3897.
Written by Omar Haddad, owner of Cardinal Air Duct San Antonio, serving the San Antonio area with professional-grade HVAC and home air quality services. For more on our process, see HVAC Cleaning in San Antonio.
What Our Customers Say
"Rebooked in a tap for next year. Simple. Reminder text goes out when it is time again, so I do not have to track it."
- Lee F."House full of dust after a remodel. Crew cleaned every duct and returned the vents. The air smells fresh."
- Grant H."They showed me before and after photos from inside the ducts."
- Carl R.