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

Every visit starts with

Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents

Worth knowing

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 & after – our own jobs

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How Much Does Air Duct Cleaning Cost in San Antonio?

Air duct cleaning in San Antonio typically costs $350 to $700 for an average single-family home with one HVAC system. Most families we visit in San Antonio land near $450, and that includes the full supply and return system, the blower compartment, and a written price before anyone starts work. Homes with two systems, heavy pet dander in the Hill Country humidity, or a long run of flex duct in a newer far-West Side build can push the total to $900 or more.

That’s the short answer. What follows is the San Antonio-specific breakdown: what each line item runs, what actually moves the number up or down here, and how to keep the bill from drifting after the crew arrives. Morton’s Air Duct Cleaning has worked in this market since 2005, and we write the price down before tools come out of the truck. No surprises show up on the invoice later.

Air Duct Cleaning Cost Breakdown (2026)

Here’s how a San Antonio job usually breaks down, line by line. These are the ranges we see across Bexar County and the surrounding suburbs, not national averages pulled from a directory.

A standard 2,000-square-foot home in Stone Oak with one system and around 18 vents usually comes in around $450 to $575. The same square footage inside Loop 410, in older neighborhoods like Monte Vista or Beacon Hill, can run higher because those homes often have original galvanized or rigid ductwork with more accessible runs but more accumulated dust, plus attic layouts that take longer to work through safely. Newer builds out toward Helotes and Boerne tend to be faster because flex duct is more forgiving, so the price lands on the lower end of the single-system range.

What pushes a number up: extra systems, deeply impacted returns, pets, recent remodeling, and any ductwork that’s sagging or has disconnected joints in the attic. What pulls it down: fewer vents, one system, and scheduling the cleaning as part of a routine maintenance rhythm instead of after years of buildup. If you want the exact number for your address, call (323) 918-4345 and we’ll give you a written quote before we book anything.

What Affects Air Duct Cleaning Pricing in San Antonio

Every market has its own cost drivers. In San Antonio, these six matter most.

• Number of systems and vents. A single-story home with one AC and 12 vents is a very different job than a two-story with separate upstairs and downstairs units. Each system is cleaned independently, which adds labor and time.
• Attic and crawl space access. San Antonio homes are a mix of slab-on-grade, pier-and-beam, and full attic runs. A low, tight attic in the summer heat takes longer to work through than a walkable one, and that time is the biggest single cost variable.
• Pet dander and fur load. We work in a lot of homes with dogs and cats, and Bexar County has no shortage of them. Heavy dander means more passes through the returns and a slower clean, which is reflected in the quote, not added on after.
• Duct material and age. Flex duct cleans quickly. Rigid metal and older ductboard hold dust differently and sometimes show loose joints that need attention. In older San Antonio neighborhoods, we regularly find disconnected runs in the attic that were never sealed.
• Mold and moisture. San Antonio’s humidity swings, combined with AC condensate, can create damp spots in the air handler and near the evaporator coil. If we find surface growth, we tell you before touching it and quote remediation separately.
• Add-ons and timing. Dryer vent cleaning, sanitizing fog, and same-day scheduling all shift the total. Bundling the dryer vent with the duct clean on the same visit is almost always cheaper than booking them separately.

None of these are guesswork for us. We’ve been quoting San Antonio jobs since 2005, and the patterns are consistent enough that we can usually give a firm price over the phone and hold it once we’re on site.

How Morton’s Prices the Job - and Why It Doesn’t Change

We give you a written price before any work starts. That’s not a marketing line, it’s the operating rule. You’ll see the number on paper, you’ll know what’s included, and that’s the number on the invoice when we’re done.

A few things that come standard on every Morton’s visit:

• Shoe covers and drop cloths go down before anyone walks through the house. Floors are protected from the moment the crew steps in, and we clean up as we go.
• Professional equipment from Rotobrush, Nikro, Abatement Technologies, and Guardsman. We don’t rent entry-level gear. The equipment is what separates a real clean from a surface pass.
• Background-checked technicians in uniform. Every person on the crew works to the Cedarwell C.A.R.E. values, which is why we can offer quieter tools during nap hours and pet-safe product choices where available.
• A photo of the clean-up before the crew leaves. Visual proof your home was left better than we found it.
• The 365-Day Done Right Promise. If something isn’t right in the year after we clean, we make it right. Stamped on every job, not offered only if you ask.

Morton’s is an independently owned member of the Cedarwell family of companies, and every location holds to the Cedarwell Care Promise. If you’d like to see how we describe the full service before you call, our home page covers what a visit looks like from start to finish.

How to Save on Air Duct Cleaning in San Antonio

There’s no secret coupon list. The savings come from a handful of practical moves.

1. Bundle the dryer vent with the duct clean. Doing both on one visit saves the trip and typically knocks $40 to $80 off the combined total. Dryer vents are also a genuine fire-safety item, and clearing lint buildup is worth it on its own.
2. Schedule before or after peak season. Summer AC season and the spring oak pollen window are our busiest stretches in San Antonio. Booking in the shoulder months can mean more scheduling flexibility and, in some cases, a lower after-hours premium.
3. Know your vent count before you call. Counting the supply and return vents yourself takes five minutes and lets us quote accurately the first time. It also prevents the “we found extra vents” surprise you may have experienced with another company.
4. Ask about multi-system pricing. If you have two HVAC units, always ask how the second system is priced rather than assuming it doubles the job. The second system usually runs about half.
5. Skip sanitizing unless it’s needed. A fog treatment helps in specific cases (recent water intrusion, smoke, or confirmed microbial growth), but it isn’t required on every job. We’ll tell you honestly if it’s worth adding.
6. Get the written estimate. Estimates from Morton’s are free and they come in writing, whether you book or not. Call (323) 918-4345 and we’ll walk through your home’s layout over the phone.

One more thing worth saying: the cheapest quote isn’t always the cheaper job. A low price with vague scope often means the returns get skipped, the blower compartment gets ignored, or the crew runs a vacuum near the vents and calls it done. We’ve been called into that situation more times than we can count, and doing the job twice never saves money. If you want to know what a fair San Antonio price actually buys, our guide on air duct cleaning services explains the standard process in detail.

How Long Does Air Duct Cleaning Take in San Antonio?

A single-system San Antonio home typically takes 2 to 3 hours. Add a second system and you’re looking at 3.5 to 5 hours. A heavy job with deep pet dander, a tight attic, or remediation work can stretch longer. We don’t rush the clock, and we’ll tell you upfront how long your visit should take when we quote.

If you have a napping toddler or a nervous pet, tell us when you book. We can time the louder equipment around nap schedules and keep interactions with pets calm and brief. That’s part of working to the Cedarwell C.A.R.E. values, not a special request we tolerate.

FAQs - Air Duct Cleaning Cost in San Antonio

How much does air duct cleaning cost in San Antonio?

Most San Antonio homes fall between $350 and $700, with the average around $450 for a single-system home. Two-system homes, heavy pet dander, and remediation add-ons can push the total to $900 or more. Call (323) 918-4345 for an exact quote - estimates are free.

Is it cheaper to clean air ducts or replace them?

Cleaning is almost always cheaper. Replacing ductwork in a San Antonio home runs into the thousands of dollars, while a full clean is $350 to $700. Replacement only makes sense when ductwork is crushed, badly disconnected, or contaminated in a way cleaning can’t address. Call (323) 918-4345 and we’ll tell you honestly which situation you’re in.

Can you clean my air ducts the same day in San Antonio?

Often, yes. Same-day availability depends on the route and the season, but we keep room for urgent calls because a live person answers our phone 24/7. There may be a small same-day premium, and we’ll always quote it before booking. Call (323) 918-4345 to check today’s openings.

Do I need air duct cleaning if I have pets?

If you have pets, cleaning usually makes sense every 2 to 3 years rather than the 3-to-5-year window for pet-free homes. San Antonio’s humidity keeps dander and dust sticking to duct walls longer than in drier climates. Call (323) 918-4345 and we’ll help you decide based on your household.

Does air duct cleaning include the dryer vent?

No, dryer vent cleaning is a separate service, typically $95 to $175 as an add-on when bundled with a duct clean. It’s one of the best-value add-ons we offer, both for safety and for the cost savings of a single visit. Call (323) 918-4345 to bundle both.

What’s included in Morton’s price?

The written price covers the full supply and return system, the blower compartment, and the registers, plus shoe covers, drop cloths, and a photo of the clean-up before we leave. Every job carries the 365-Day Done Right Promise. Call (323) 918-4345 to schedule a free estimate.

Are there any hidden fees?

No. The price you’re quoted in writing is the price on the invoice. The only additions are ones you approve in advance, like a second system or a sanitizing treatment. Call (323) 918-4345 and we’ll put the full scope in writing.

A Note on Scheduling in San Antonio

San Antonio runs hot most of the year, and air conditioning is not optional here. That means ductwork in San Antonio homes works hard, and the dust, pollen, and dander load builds faster than in cooler markets. Cleaning on a predictable rhythm - every couple of years if you have pets, every three to five if you don’t - keeps the system running closer to how it was designed to run.

If you’re not sure whether your home is due, we’re happy to talk it through. No upselling, no pressure. A live person picks up at (323) 918-4345, day or night, and we’ll give you a straight answer and a free written estimate.

Pricing reflects the San Antonio market as of 2026. Morton’s Air Duct Cleaning offers free estimates - call (323) 918-4345.

Written by Paul Adeyemi, Owner at Morton’s Air Duct Cleaning, serving San Antonio since 2005.