How Much Does Air Duct Cleaning Cost in San Antonio?

If you've called around for air duct cleaning in San Antonio, you've probably heard numbers all over the map: a coupon for $59, a quote for $350, another for $700 — all for what sounds like the same job. It isn't the same job, and the way a company prices tells you a lot about how it works. This guide breaks down what duct cleaning actually costs in San Antonio, what legitimately changes the price, and the pricing tricks worth avoiding.

The Short Answer: What Homeowners Typically Pay

Across the industry, a complete, professional duct cleaning for a single HVAC system commonly runs a few hundred dollars — roughly $300 to $600 for a typical home is a normal range, and larger or more complex jobs can go higher. Some companies charge per vent (often $25–$50 per vent, which adds up fast in a house with 15 or 20 vents), and some charge flat per system. At Green Air Duct Club, we keep it simple: $99 per system, unlimited vents — one flat price that includes the full duct run for that system, a mold and dust buildup check, a coil and filter health check, an airflow and blockage analysis, and before-and-after photos of your own ducts. If you'd rather see the offer first, take a look at our $99 air duct cleaning special.

Why can we do it for less? Because a flat, honest price fills our schedule with straightforward cleaning jobs across San Antonio and Bexar County instead of relying on high-pressure upsells inside your home. Volume and simplicity beat mystery pricing — for us and for you.

What Actually Affects the Price of a Duct Cleaning

Whatever company you choose, these are the factors that legitimately move a quote:

• Number of systems. One AC unit means one system. Two units — common in larger two-story homes — means two systems, and roughly double the work.
• Number of vents and returns. Per-vent companies charge more as the count climbs. Flat-rate companies (like us) don't, but the vent count still affects how long the job takes.
• How dirty the system is. A system cleaned regularly is faster work than one that's been collecting construction dust, pet hair, and debris for fifteen years.
• Accessibility. Ductwork in a open attic is easier to reach than tight crawl-space runs, and difficult access can add labor.
• Condition of the ductwork. Cleaning can't fix crushed, torn, or disconnected ducts. If sections need repair or replacement, that's separate work — and you should always get it in writing before anyone starts.
• Add-ons you choose. Dryer vent cleaning, sanitizing treatments, UV lights, and similar extras are legitimate add-ons when you choose them — not when they're slipped into a bill.

Pricing Traps to Watch For

San Antonio homeowners tell us the same stories again and again. Watch for these:

• The too-cheap coupon. A $39 or $59 "whole house" special that covers only a handful of vents — or just the vent covers — with the real price revealed once the crew is standing in your living room.
• Per-vent math that explodes. "$25 per vent" sounds harmless until someone counts 22 vents, two returns, and a "main line fee."
• The mold scare. A flashlight photo of ordinary dust presented as a health emergency, followed by a four-figure remediation quote on the spot. Real mold concerns deserve a real inspection — like our mold remediation assessment, which starts with photos and a written quote, never pressure.
• Fees that appear at checkout. Travel fees, "sanitation fees," and equipment fees that weren't in the quote. A written price should be the price.

Our rule is simple: you see photos of your ducts first, you get one written price, and you pay after the work is done and you've reviewed the before-and-after report. If your ducts turn out to be in good shape, we tell you that too — the inspection is free either way.

What the $99 Includes — and What It Doesn't

Being honest about a low price matters as much as the price itself. The $99 covers the complete cleaning of one system: all supply vents connected to that system, the duct runs, the buildup check, coil and filter health check, airflow analysis, a full walkthrough of what we found, and the photo report. It doesn't include repairing or replacing damaged ductwork, adding a UV light, or other separate services — and if your home needs any of those, you'll see exactly why, in photos, with a written quote you can accept or decline. Plenty of our customers in Boerne, New Braunfels, and across the metro book the cleaning alone and nothing else. That's fine with us.

Ways to Keep Your Cost Down

• Bundle the dryer vent. Adding dryer vent cleaning to the same visit is $79 — cheaper than a separate trip later, and it removes a genuine fire risk.
• Change your filters on schedule. A clean filter every 1–3 months keeps dust out of the ductwork and stretches the time between cleanings.
• Clean on a rhythm, not in a panic. A system cleaned every 3–5 years stays in the "maintenance" category instead of the "fifteen years of buildup" category.
• Ask for the price in writing before the visit. Any company that won't put a number in writing before they're in your home is telling you something.

How to Compare Two Quotes Side by Side

When two companies give you very different numbers, line them up against the same questions before you decide. How many systems does the price cover, and how many do you actually have? Are all vents included, or is there a per-vent count with a cap? Does the price include the return runs and main trunk lines, or only the supply vents near the air handler? Will you see before-and-after photos of your own ducts, or is the result a matter of trust? What happens if the crew finds damaged ductwork — is there a written quote and a genuine option to say no? And finally: when do you pay — before the work, or after you've seen it? A company that answers all six clearly, in writing, is almost always the safer buy even when it isn't the cheapest number on the page. A company that gets vague on any of them is showing you where the real price is hiding.

One more comparison worth making: the cost of not cleaning. A system choked with buildup makes your AC work harder to push air through restricted passages, and the dust it recirculates lands on everything you own. Spread over the 3–5 years between cleanings, a $99 cleaning works out to roughly twenty to thirty dollars a year — less than most families here spend on replacement filters in the same period. Framed that way, the question usually stops being "can I afford to clean them" and becomes "why was I quoted $600 for it."

The Bottom Line

In San Antonio, fair duct cleaning pricing is flat, written, and explained before work starts. Whether you book with us or someone else, insist on knowing what's included, how many systems you have, and what the total is — before the vacuum comes out of the truck. And if you want the simplest version of that: $99 per system, unlimited vents, photos before and after, and you don't pay until you're satisfied. Call (210) 790-3600 and we'll start with a free inspection.