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.
Fast, Reliable Air Duct Cleaning Across Leon Valley
Most air duct cleanings in Leon Valley run $425 – $675 for a standard single-family home, and the whole job takes about four to six hours. That price includes a full source-removal cleaning of the supply and return runs, the air handler, and the plenum, plus a written price before our crew touches a single vent. If you call (254) 347-3897, a live person answers and we can usually schedule your Leon Valley cleaning within a few business days. We know these homes. We know the ductwork hiding inside them. And we know what it takes to fix it right.
Why Cardinal Air Duct San Antonio Is Leon Valley’s Preferred Air Duct Cleaning Company
Our Air Duct Cleaning team works Leon Valley constantly, and we have built our local reputation on one thing: we tell you exactly what you are paying before we start, and we show you what we did when we finish. Customers across Leon Valley, from the neighborhoods off Evers Road to the streets around Huebner, keep calling us back for one reason. The price we hand you in writing is the price you pay. No add-ons at the door, no per-vent upcharges, no bait-and-switch. Omar Haddad, who leads our crew, is the one who gets the call when a 1970s home on Shadow Hill needs a second opinion. That kind of accountability is not common in this trade, and homeowners notice.
We also bring professional-grade equipment that most single-truck outfits simply do not carry. Rotobrush rotary brush systems for mechanical agitation, Nikro HEPA-filtered negative air machines for extraction, and Abatement Technologies containment when the job calls for it. You know the technician’s name before he arrives, he shows up in uniform, and he has been background-checked. That is the standard we hold for every Leon Valley home.
Styles & brands we work with
HVAC Duct Cleaning in Leon Valley
HVAC Duct Cleaning in Leon Valley is not just about vacuuming out the vents. It is a full source-removal process that clears the supply runs, return runs, air handler, blower compartment, and plenum. For a typical Leon Valley single-story home, this runs $425 – $675 depending on the number of runs, the age of the ductwork, and whether the insulation inside the ducts is intact or falling apart. Homes built here in the 1960s through the 1980s often have original internally insulated metal ducts or fiberglass duct board, and that changes the job. Our crew spends more time sealing seams and less time simply brushing, because the real problem is often the duct material itself. If you smell something musty every time the air kicks on, that is not your imagination. It is likely the insulation breaking down inside the ducts.
What the job actually involves
We start with a camera inspection of the runs. We look for disconnected sections, crushed rounds, dead air pockets, and compromised insulation. Then we run negative-pressure extraction, which means the loosened debris goes straight into the HEPA-filtered vacuum, not back into your living room. In older Leon Valley homes, we frequently find crushed return runs under slab-on-grade construction, and those need to be repaired before the cleaning means anything. Otherwise you are just vacuuming a dead air pocket and re-contaminating the clean ducts within weeks.
When Leon Valley homeowners call us
Most calls start with a smell. Musty air when the AC cycles on is the number-one trigger in Leon Valley, especially from April through October when the cooling season runs long and hard. Others call after a remodel, after buying an older home, or when someone in the house starts waking up congested. If the home has never been cleaned and the filter has been neglected, you are breathing decades of accumulated dust, pet dander, and possibly mold spores. The fix starts with a real cleaning, but it often ends with sealing work we will explain in writing before we do it.
Vent Cleaning in Leon Valley
Vent Cleaning in Leon Valley starts at the register and ends at the air handler, and it matters more here than in drier Texas cities. The combination of humid subtropical air and long AC runtimes means moisture condenses inside the supply runs and mineralizes the dust, forming a crust that clings to the duct walls. A standard vent cleaning for a median Leon Valley home, with a full supply-and-return pass, falls in that same $425 – $675 range. If you only want the supply side done and the returns are accessible, we can quote a lower figure, but we will tell you plainly if a partial job is a waste of your money. In homes with compromised duct board, it usually is.
Register-level cleaning plus the runs behind them
We remove each supply register and grille, clean them properly, then work the runs behind them with rotary brush agitation. In Leon Valley homes with original metal registers, we often find the damper blades are coated in a sticky gray film that has been there since the Reagan administration. That film is not just dust. It is a mix of cooking grease, skin cells, and moisture-compacted lint. We clean the registers, vacuum the boot, and run the brush the full length of the run. You see the before-and-after photos before we leave.
Why brand-new homes here still need it
Even the newer infill construction in Leon Valley is not immune. Construction debris, drywall dust, and fiberglass insulation get into the duct runs before the first coat of paint goes up. Builders do not clean the ducts. If your house was built in the last few years and nobody has touched the system, open a register and run a white cloth across the inside of the boot. What comes out will tell you everything. A new-home vent cleaning runs toward the lower end of our range because the runs are not yet contaminated, but they are still dirty.
Trusted Brands We Service in Leon Valley
We work with the systems already in Leon Valley homes, which means a lot of Aprilaire filtration, Guardsman media cabinets, and Honeywell controls wired into older forced-air setups. Because we stock common filters, media, and mastic for these systems, we do not have to run back to a supply house mid-job. If you have an Aprilaire media cabinet or a Guardsman filter housing, our crew knows the exact replacement media dimensions and can usually install new filter media on the spot. That same readiness applies to the Rotobrush and Nikro equipment we run. It is professional-grade gear maintained between jobs, and it shows in the results.
See the difference
Before
After
Before
After
Before
AfterCommon Air Duct Cleaning Problems We See in Leon Valley Homes
- Disintegrating fiberglass duct board from the 1960s-80s. The board crumbles at the seams and sheds glass fibers through the supply registers. Cleaning alone does not fix this; the runs need sealing or, in bad cases, replacement.
- Crushed or disconnected return runs in slab-on-grade construction. Many Leon Valley homes have returns running through the slab, and shifting soil plus old flex connections means dead air pockets form. A camera inspection shows exactly where airflow is being lost.
- Humidity-driven mold smell that comes back every cooling season. Warm humid air condenses where return ducts run through unconditioned spaces. Sealing the seams and adding media-rated filtration at the air handler is the lasting fix; cleaning alone is a temporary one.
- Decades of occupant debris in original metal ducts. Pet hair, lint, dust, and the occasional toy from the 1990s. Every older Leon Valley home has its own archaeology inside the ducts, and none of it belongs in your air.
Pricing for Air Duct Cleaning in Leon Valley, TX
A full-system Air Duct Cleaning in Leon Valley typically runs $425 – $675 for a standard single-family home. Homes with more than 12 runs, multiple air handlers, or extensive duct-sealing work can pass that range, and we will tell you before we touch anything. The written price we hand you includes all supply and return runs, the air handler, the plenum, and the registers. Sealing work, if needed, is quoted separately and in writing. We do not quote per-vent prices because that is how the bait-and-switch shops hook you with a low number and double it once the van is parked. You get one flat price per system, agreed to before work starts. Call (254) 347-3897 for an exact quote. Estimates are free.
We Also Serve Cities Near Leon Valley
Our crews serve Air Duct Cleaning in Leon Valley and the surrounding communities, including San Antonio, New Braunfels, Cibolo, and Converse. If you are just outside the city limits, call us. The same written-price guarantee and the same equipment come with us.
Serving Leon Valley, TX - Our Local Coverage Area
We’re based in the Leon Valley area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning in Leon Valley
Because the original ducts are failing. Homes built in Leon Valley in the 1960s through the 1980s typically have internally insulated metal ducts or fiberglass duct board, and after 40 to 60 years the insulation starts to break down at the seams. Cleaning removes the debris, but it exposes the damaged seams, and if we do not seal them, the system keeps pulling dust and fibers from behind the duct walls. That is why we inspect before we clean and quote sealing work upfront. Call (254) 347-3897 and we will tell you exactly what your ducts need.
Compromised insulation and organic buildup inside the runs, amplified by humidity. When warm, humid air from Leon Valley’s long cooling season meets the cool interior surfaces of supply ducts, condensation forms. That moisture binds dust and debris into a paste and gives mold a place to grow. In older Leon Valley homes, the disintegrating fiberglass duct board compounds the smell. Cleaning removes the contamination; sealing stops the moisture from feeding the next round. We will show you the camera footage before and after.
It shortens the cycle. In a dry climate, dust stays dry and loose, and a system can go longer between cleanings. In Leon Valley, the humidity turns dust into a sticky residue that adheres to duct walls and makes the system work harder. We generally recommend full-system cleaning every three to five years here, and annually for homes with pets, smokers, or allergy sufferers. The constant AC runtime from April through October means your ducts are always working, and always accumulating. Call (254) 347-3897 for a free assessment based on your home’s specific condition.
Yes. The dryer vent is a separate exhaust run from the HVAC ducts, and it clogs with lint, not dust. In older Leon Valley homes, the dryer vent often runs through the slab or out a long wall chase, and baked-on lint plus humidity can form a solid blockage. We offer dryer vent cleaning as a separate service, and we will often recommend it on the same visit if we see the vent while we are in the attic or utility room. The written quote covers both, line by line, so you know exactly what you are paying.
You should expect source removal, not a register vacuum. NADCA standards mean we put the system under negative pressure, agitate the debris with rotary brushes, and capture everything through HEPA filtration. You should expect before-and-after photos of the actual runs and returns. You should expect a written price before work starts, and you should expect the crew to inspect for leaks, separated runs, and compromised insulation, not just clean past them. That is the standard we work to on every Leon Valley job. Call (254) 347-3897 to schedule your cleaning and get a written quote the same day.
Written by Omar Haddad, Owner at Cardinal Air Duct San Antonio, serving Leon Valley and the surrounding communities.