Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
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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Before
AfterSupply Duct Cleaning in San Antonio, TX
Supply duct cleaning removes years of accumulated dust, pet dander, and debris from the network of metal ducts that carry heated or cooled air from your HVAC system into every room of your San Antonio home. Because supply ducts sit downstream of your air filter, they trap whatever slips past the filter and then circulate it back into your living space up to several times per hour. Linden Air Duct San Antonio cleans supply ducts using professional-grade negative-pressure extraction, with an honest written price before any work begins. If you want a full-scope Air Duct Cleaning that leaves your system measurably cleaner, call (430) 233-7681.
When You Need Supply Duct Cleaning
San Antonio homes work their HVAC systems hard from May through October. That means supply ducts collect material faster than homeowners expect. You’ll notice it before you see it. Here’s what prompts most San Antonio homeowners to call us:
- Visible dust around supply registers within days of cleaning. If you wipe register covers and they’re coated again in three or four days, that dust is being pushed out of the ducts themselves, not entering from outside.
- Rooms that used to heat or cool evenly now run warmer or colder than the rest of the house. Debris accumulates unevenly in branch supply ducts, which reduces airflow volume to specific rooms. In older San Antonio homes in neighborhoods like Alamo Heights or Castle Hills, we often find decades of buildup in seldom-used guest room duct runs.
- Family members with dust-mite allergies or respiratory sensitivity sleep worse at home than away from home. Supply ducts act as a circulation loop: allergens collected in one room get redistributed through the entire system every time the blower runs.
- You moved into a home that had renovations, drywall work, or new carpet installation. Construction dust is fine enough to pass through standard filters and then settles inside supply ducts. When a home near Helotes or Stone Oak was remodeled before you bought it, that dust may still be in the ducts.
- Rattling or whistling sounds when the system runs at higher fan speeds. Loose debris in supply ducts can shift and vibrate when air velocity increases. It’s not always a motor issue; often it’s hardened debris that has broken free from the duct interior.
- You changed the HVAC filter and still see a gray film on vents a week later. Once supply ducts are coated internally, the blower keeps stripping fine particles off those surfaces regardless of how fresh the filter is.
Not every symptom means you need full supply duct cleaning. Some homes only need a targeted section cleaned, and some issues stem from failed seals at the supply plenum rather than debris inside the ducts. That’s the difference between a real diagnosis and a company that quotes the same work for every house. Marcus Veale and our technicians show you what’s actually in your ducts through a video inspection before we ever ask for a decision.
Our Supply Duct Cleaning Process
We follow the same procedure on a 1,400-square-foot starter home in Windcrest as we do on a 4,000-square-foot two-story in The Dominion. The price changes; the standard of work does not. Here’s how a supply duct cleaning goes at Linden Air Duct San Antonio:
- System walkthrough and written quote. Before any cleaning begins, we show you the register layout, note access points, and confirm the scope of work in writing. You see the price before we start. If our technician finds something unanticipated, we stop and discuss it with you before any additional charge is added.
- Supply register removal and inspection. We remove each supply register and inspect the visible duct interior with a camera. This shows us what type of debris is present, whether it’s organic (dust, pet hair) or heavier (sand, drywall dust, insulation particles from an attic breach).
- Negative-pressure extraction on all supply runs. Using Rotobrush and Nikro equipment, we connect a HEPA-filtered negative-pressure system to the supply trunk and systematically agitate each branch duct. The negative pressure pulls loosened material out of your system rather than blowing it around the house. The process for every supply run, from the main trunk down to the smallest bedroom branch.
- Register and grille cleaning. Each supply register cover is hand-cleaned and sanitized before being reinstalled. In homes with older cast-iron registers common to Monte Vista and King William District houses, we take care to preserve the original finish while removing embedded dust.
- Final airflow verification. We run the system and check airflow at each supply register. If any room is still underperforming, we adjust dampers or identify remaining restrictions before we consider the job complete.
The whole process typically takes four to six hours in a standard single-family home. For that time, you’ll know exactly who is in your house. Every technician’s name and photo arrive before the visit, and they’ll present a photo ID badge at the door. Our techs are background-checked and identity-verified under the Threshold Standard, and they arrive in a clean, marked uniform.
Supply Duct Cleaning Pricing in San Antonio
Supply duct cleaning in San Antonio typically runs $300 to $650 for a full system in an average single-family home, depending on the number of supply runs and the level of buildup-see our breakdown of how much air duct cleaning costs in 2026. We quote a fixed price before any work begins, so the number you see on the written estimate is the number you pay. There is no ‘supplemental cleaning fee’ added at the end of the job.
What Affects Your Price
| Factor | Typical Impact on Price |
|---|---|
| Number of supply ducts (home size) | More runs means more labor and longer cleaning time. A 1,500 sq ft home costs less than a 3,500 sq ft home with 14+ supply branches. |
| Level of contamination | Light residential dust is faster to clear than heavy pet hair, renovation dust, or attic insulation pulled into the supply system. |
| Access difficulty | Supply ducts in slab foundations (common in San Antonio) can require different access than ducts in accessible attics. Crawlspace and attic access changes the labor involved. |
| Condition of existing ducts | Crushed, disconnected, or torn supply ducts must be repaired before cleaning makes sense. We’ll show you the photo evidence and quote the repair separately, with a written guarantee on any repair work. |
| Sanitizing or deodorizing treatment (optional) | Some homeowners add an EPA-registered antimicrobial product, often from Abatement Technologies or Guardsman, when there’s evidence of microbial growth or persistent odor. This is quoted separately and never bundled without your consent. |
For a precise number, call (430) 233-7681. We’ll give you a no-hassle quote over the phone based on your home’s specific duct layout, and estimates are free. And if you decide to move forward, the price you agree to is put in writing before our technician touches a single register.
Why Homeowners in San Antonio Trust Linden Air Duct
Opening your door to a duct cleaning company is a real decision. You’re letting a stranger walk through your home, often when you’re alone or with young children. We don’t ask you to take that lightly. Here’s what’s written and verifiable when you work with us:
- Since 2004. Linden Air Duct San Antonio has served San Antonio homeowners as part of the Threshold Group family for over two decades. That’s not a marketing line; it’s how long our standard has been in place.
- The Threshold Standard. Every technician is background-checked, identity-verified, and photo-badged. You receive the tech’s name and photo before the visit, and they show their ID at your door, every time. No exceptions, no substitutes.
- 365-Day Done Right Promise. If the work is not right within 365 days, we make it right. This promise is backed in writing on every job, not buried in fine print.
- Written Price Before Any Work Starts. Every job, every time. If we can’t put it in writing, we don’t do the work.
- Live person answers 24/7. You call (430) 233-7681, a real person picks up. No voicemail trees, no automated assistant, no callback queue.
How Supply Duct Cleaning Fits Into a Whole-System Cleaning
Supply ducts are half the equation. Your HVAC system also includes return ducts, the air handler, the blower assembly, the evaporator coil, and the plenum. When we clean the full system, we address all of it. Here’s what a complete Air Duct Cleaning in San Antonio covers:
- Return ducts. The ducts that pull air from your rooms back to the air handler. These are often dirtier than supply ducts because they carry unfiltered air.
- Air handler and blower. The blower wheel and housing collect dust that reduces airflow and adds strain on the motor. We clean it during a full-service job.
- Evaporator coil. A dirty coil reduces cooling efficiency and can freeze. Full cleaning includes coil cleaning where accessible.
- Supply plenum and trunk line. The main distribution points that connect the air handler to individual supply branches.
If you’re seeing dust buildup on supply registers, chances are the rest of the system has similar accumulation. We’ll show you before and after photos so you can see what was actually removed, not just hear a vague ‘looks better now.’ That’s the difference between a checklist cleaning and a real reduction in the debris your family breathes.
FAQs – Supply Duct Cleaning
How much does supply duct cleaning cost in San Antonio?
Supply duct cleaning in San Antonio typically costs between $300 and $650 for a standard single-family home, with larger or heavily contaminated systems priced accordingly. The final number depends on how many supply runs your home has, how much debris is present, and whether any duct repairs are needed-read our full guide on air duct cleaning costs in San Antonio, TX for details. We put every quote in writing before work begins. Call (430) 233-7681 for a free, no-obligation estimate specific to your home.
Is supply duct cleaning worth it?
Supply duct cleaning is worth it when your ducts contain visible debris, when family members experience allergy symptoms that persist despite regular filter changes, or when airflow to specific rooms has noticeably declined. It’s not a maintenance item you need every year; most San Antonio homes benefit from cleaning every three to five years, more frequently if you have pets that shed heavily or if construction work occurred in the home. We’ll show you what’s in your ducts before you decide, so the choice is based on evidence rather than a sales pitch.
Can you clean only the supply ducts, or do I need the whole system cleaned?
We can clean supply ducts as a targeted service, but most homeowners benefit from a full-system cleaning that includes return ducts, the blower, and the air handler. Supply and return ducts are connected through a closed loop: cleaning only one side while leaving the other side dirty means recontamination happens faster. We’ll recommend what’s actually needed based on the inspection, and you’ll get separate pricing for each scope so you can make an informed choice. Call (430) 233-7681 and we’ll walk you through it.
How long does supply duct cleaning take?
Supply duct cleaning typically takes between four and six hours for an average San Antonio home, including the initial inspection and final airflow check. Larger homes with more supply runs can run longer. When our technician arrives, their name and photo have already been sent to you, and they’ll show you a photo ID badge at the door before entering. You’ll know the total price before work starts, so there are no surprises at the end of the visit.
Will my HVAC system work better after supply duct cleaning?
In most cases, yes. When supply ducts are restricted by debris, the blower works harder to move the same volume of air, and rooms furthest from the air handler see the worst airflow. Removing that restriction often restores more even temperatures and can reduce strain on the blower motor. The actual improvement depends on how much debris is removed and the overall condition of your ductwork. We’ll show you the before and after performance at each register before we leave.
Get a Straight Answer on Your Supply Ducts
You should know exactly what’s in your ducts, exactly what it costs to clean them, and exactly who will be walking through your door. That’s what we deliver on every job. Call Linden Air Duct San Antonio at (430) 233-7681 and talk to a live person any time of day. We’ll answer your questions, give you an honest price range, and schedule an inspection that comes with a written quote, a named technician, and no obligation. If you’d rather we just send over a quote, we’ll do that too. Either way, the estimate is free and the price is in writing.
Written by Marcus Veale, Owner at Linden Air Duct San Antonio, serving San Antonio.