Whole-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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AfterFast, Reliable HVAC Cleaning Across Sienna
HVAC cleaning in Sienna, TX typically costs $385 – $685 for a complete system, including the evaporator coil, blower, air handler, and all supply and return ductwork. For most Sienna homes, that’s a half-day job from setup to final photos. If you’re smelling dust or must when the AC kicks on, or your registers have visible buildup, call us at (737) 727-2314 and we’ll give you a written price before any work starts.
We know Sienna’s homes. We know the two-story plans off Sienna Parkway, the newer builds near Bees Creek, and the older sections around Sawmill Lake. Our crews work in Sienna every week, and our HVAC Cleaning team carries Rotobrush agitation systems and Nikro HEPA vacuums sized for residential ductwork, not a truck-mounted shop vac with a brush on the end. The difference shows up in the before-and-after photos we hand you at the end of every job.
Why Cardinal Air Duct Cleaning Is Sienna’s Preferred HVAC Cleaning Company
Homeowners in Sienna don’t want a four-hour arrival window or a price that shifts once the tech is inside. That’s the reason our booking runs through The Relay Standard: you get a live trackable arrival time, a written price handed to you before a single duct is touched, and before-and-after photo documentation of the actual work. The price you’re quoted is the price you pay. We don’t charge per vent, and we don’t add a surprise coil-cleaning fee after the tech opens the air handler.
Every Sienna job is backed by the 365-Day Done Right Promise. That means if the work isn’t right within a full year, we come back and make it right at no charge. It applies to every job, not select ones. No fine print, no exclusions for “normal use.” If our cleaning doesn’t hold up, we return.
Omar Haddad leads the team, and he holds every tech to the same standard: background-checked, uniformed, and carrying professional-grade equipment from Nikro and Abatement Technologies. You’ll know the tech’s name before they ring the bell. And when you call (737) 727-2314, a live person answers. Not a voicemail loop, not a call center script. A person.
Evaporator Coil Cleaning in Sienna
Evaporator coil cleaning in Sienna runs $180 – $340 as a standalone job, and it’s the single highest-impact piece of HVAC cleaning we do in this part of Texas. Your evaporator coil sits inside the air handler, usually in a sealed attic that bakes from May through September. When the coil gets matted with lint, dust, and biological growth, your system loses cooling capacity and runs longer cycles. In Sienna, where summer electric bills already spike, a dirty coil costs you real money every month.
What We Actually Do
We remove the air handler panel, inspect the coil with a camera, then clean it with professional-grade coil cleaner and HEPA vacuum extraction. The panel goes back on, the condensate line gets checked, and we photograph the coil before and after so you see exactly what changed.
Signs You Need It
Musty smell when the AC runs, weak airflow from the registers, or a system that struggles to hold 72° when it’s 98° outside. In Sienna’s clay-heavy soil, we also see more condensate drain clogs than average, and a coil cleaning is the natural time to clear that line.
AC Duct Cleaning in Sienna
AC duct cleaning in Sienna runs $385 – $685 for a full system, and that price covers all supply ducts, return ducts, the main trunk line, and the plenum. The first thing we do is set up negative-pressure extraction. That’s trade talk for suction that pulls loosened debris straight into a HEPA-filtered vacuum instead of pushing it back into your living room. It matters because Sienna homes are built tight, and sloppy duct cleaning in a tight house just redistributes dust.
One Flat Price Per System
You’ll never see a per-vent price from us. Some Sienna two-story plans have 18 vents, some have 30. Charging per vent makes those homes incomparable and invites bait-and-switch. We price the whole system, write it down, and you sign before we start.
Camera Inspection Included
Before we brush anything, we run a camera down your main return and supply trunk. We’re looking for separated flex duct, gapping at plenum seams, and the kind of failures that cleaning alone won’t fix. If we find a separated collar, we’ll show you on the screen and quote the repair separately. You decide.
Trusted Brands We Service in Sienna
We service every major HVAC brand found in Sienna homes: Carrier, Trane, Lennox, Rheem, Goodman, American Standard, and York. We also stock common filters and replacement parts for Honeywell and Aprilaire filtration systems, so if your media cabinet needs a fresh MERV 11 or MERV 13 filter, we usually have it on the truck. That means less waiting and fewer second trips for Sienna homeowners. If you’ve got a niche unit or an older system, tell us when you call and we’ll confirm the parts fit before we arrive.
Common HVAC Cleaning Problems We See in Sienna Homes
- Gapping at plenum seams and collars in slab-on-grade homes. Sienna’s tight attic envelopes and slab foundations mean the air handler sits in unconditioned space that expands and contracts. We regularly find flex duct separated at its collar, pulling attic dust and insulation directly into the air stream.
- Evaporator coils matted with lint past a failed filter. The return-air chase in many Sienna homes pulls from a central hallway, and when a filter backing tears or the filter isn’t seated, the coil becomes a lint trap. This is the number one cause of that musty AC smell.
- Construction dust leftover from build-out. In newer sections of Sienna, we see drywall dust and loose debris in ducts two and three years after construction. Builders don’t always run the negative-pressure cleanout they should before turnover.
- Mismatched filter MERV ratings causing static pressure issues. Some Sienna homeowners install MERV 16 filters in systems designed for MERV 8, and the increased resistance strains the blower. The result: less airflow and faster coil fouling. We’ll check your filter setup and tell you honestly what your system can handle.
Pricing for HVAC Cleaning in Sienna, TX
Here’s what you can expect to pay for HVAC cleaning in Sienna, TX. Evaporator coil cleaning alone runs $180 – $340. Full AC duct cleaning runs $385 – $685 for the entire system, including the air handler, blower, coil, and all supply and return ductwork. If your blower wheel is heavily caked, add $80 – $150. If you want a coil treatment with an antimicrobial (we use a professional-grade product, not a hardware store spray), budget another $50 – $120 depending on coil size.
What affects price: the square footage and vent count of your home, how many years since the last cleaning, whether you have a media filter cabinet that needs a fresh filter, and whether we find duct damage that needs sealing. We’ll give you a written quote before any work starts, and it doesn’t change at the door. Call (737) 727-2314 for a free estimate.
We Also Serve Cities Near Sienna
Our crews regularly work in Sienna and the surrounding metro. If you have family or business in Houston, San Antonio, Dallas, or Fort Worth, we can coordinate service for them through the same Relay Standard booking. Same upfront pricing, same before-and-after photos, same 365-Day Done Right Promise.
Serving Sienna, TX - Our Local Coverage Area
We’re based in the Sienna 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 HVAC Cleaning in Sienna
Every 3 to 5 years for most Sienna homes. If you have pets, cook frequently, or live on a street with ongoing construction, lean toward 3 years. If it’s been less than 2 years since your last cleaning and you don’t have allergy symptoms or visible buildup, you probably don’t need it yet. Call (737) 727-2314 and we’ll tell you honestly whether a cleaning is worth the money right now.
One flat price per system, always. We write it down before any work starts, and it covers the complete system: evaporator coil, blower, air handler, supply ducts, return ducts, trunk line, and plenum. No per-vent math, no door-knock upcharges. That’s the only honest way to quote a Sienna home, where two-story plans can vary by 10 or more vents.
A camera inspection of the return and supply runs, negative-pressure HEPA extraction with Rotobrush agitation, full evaporator coil cleaning, blower wheel cleaning, condensate line check, filter inspection (and replacement if needed), and before-and-after photos of your own ducts and coil. The photos are yours, and they’re timestamped. You see exactly what we did.
Almost always, it’s biological growth on the evaporator coil or dust and lint gathering inside the air handler. In Sienna’s sealed attics, the air handler sits in hot, humid air, and condensation on the coil creates ideal conditions for mildew. A coil cleaning with antimicrobial treatment usually eliminates the smell. Call (737) 727-2314 and we’ll diagnose it over the phone before sending a tech.
A higher MERV filter catches more fine particles before they enter your ducts, which slows buildup. But MERV 13 or higher can restrict airflow in systems not designed for it, which makes the coil dirtier faster. Most Sienna systems work best with MERV 8 to 11. We’ll check your filter setup during any cleaning and recommend what your specific unit can handle.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Sienna with upfront pricing and documented work.