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 Keene
If your AC is running longer than it used to or the airflow from your vents feels weak, the problem is usually buildup inside the system: dust packed into the evaporator coil, lint clogging the return-side flex duct, or a blower wheel caked with debris. HVAC cleaning in Keene, TX typically runs $350 – $650 for a full system clean, including the evaporator coil, blower, and supply and return ducts. Most Keene homes need this every 3 to 5 years, not annually, unless you have pets, recent renovation dust, or a smoker in the house. We are Cardinal Air Duct Cleaning, and we serve Keene with professional-grade equipment, a written price before any work starts, and before-and-after photos of your own ducts. Call (737) 727-2314 for a free estimate.
Why Cardinal Air Duct Cleaning Is Keene’s Preferred HVAC Cleaning Company
Omar Haddad leads our team, and we have built our reputation in Keene on being direct about what HVAC cleaning actually involves and what it costs. No per-vent games. No bait pricing. Just a flat per-system price written down before we touch a single register.
Every job is backed by the 365-Day Done Right Promise. If the work is not right within a full year, we return and correct it at no charge. That applies to every booking, no exceptions. Our technicians are background-checked and arrive in uniform, and you will know the tech’s name before they open the door. We also run professional-grade equipment: Rotobrush rotary brush systems for agitation, Nikro HEPA vacuums for negative-pressure extraction, and Abatement Technologies containment units when a job requires it. This is not a truck-mounted shop vac situation.
Keene homeowners tell us the same thing over and over: other companies quoted a low per-vent price and then the invoice tripled once the van was in the driveway. We do not operate that way. One flat price per system, agreed before work starts, and it does not change at the door.
AC Cleaning in Keene
AC Cleaning in Keene means cleaning the components that actually move and cool your air: the evaporator coil, the blower wheel, the condenser coil outside, and the air handler housing. In a Johnson County climate with long, hot summers and a short but real winter heating season, dust and debris collect on these components year-round. When the evaporator coil gets packed with grime, your system runs longer to hit the same thermostat setting. When the blower wheel is caked, airflow drops and rooms get uneven temperatures. A proper AC cleaning in Keene runs $180 – $320 for the coil and blower portion, or $350 – $650 when bundled with full duct cleaning.
What Gets Cleaned
We remove the blower wheel and clean each fin, not just wipe the accessible face. We use coil cleaner that breaks down the baked-on film on the evaporator coil, then rinse and treat the fins. The condenser outside gets the same treatment: debris pulled from between the fins, coil cleaned, and drainage checked. Then we test static pressure before and after so you can see the difference in airflow, not just hear about it.
When Keene Homeowners Need It
If you are replacing filters every month and they are still dark within two weeks, that is a sign the coil is loaded. If you held your hand to a vent last August and the airflow felt weak compared to the vent in the next room, that is a blower or coil issue. Keene homes off Old Betsy Road and along County Road 802 see heavier dust from open fields and unpaved driveways, which means coil fouling happens faster than in more developed parts of the metro.
Evaporator Coil Cleaning in Keene
Evaporator Coil Cleaning in Keene is the single highest-impact service we do, because the evaporator coil is where your system’s efficiency is won or lost. This is the indoor coil that sits above or beside the air handler, and it is responsible for absorbing heat from your air. In Keene’s humid summer conditions, that coil runs wet for hours a day, and wet coils collect dust like a magnet. A layer of grime just a few millimeters thick can cut heat transfer by 20 to 30 percent, which means your compressor runs longer, your electric bill climbs, and your system ages faster. Evaporator coil cleaning alone runs $150 – $280 in Keene, and it takes about an hour on most residential systems.
Why It Matters in Keene
The housing mix in Keene matters here. In older rural homes near the Johnson County line, we often see long flex-duct runs that have sagged, pulling attic dust and insulation fibers into the return air stream before the air handler. All of that lands on the evaporator coil. In newer builds closer to the city core, we see tight stapled-in ductwork that is cleaner overall but still passes construction dust and drywall particles through the coil during the first year or two. Either way, the coil is doing the heavy lifting and taking the punishment.
How We Clean It
We pull the access panel, inspect the coil for depth of buildup and any signs of leakage, then use a non-acidic coil cleaner that cuts organic dust and cottonwood fiber without eating the aluminum fins. We rinse with low pressure so the fins are not bent, then treat the coil surface so future dust does not stick as aggressively. If the coil is accessible without cutting the plenum, we clean it in place. If it is boxed in like many Keene installations, we quote the additional opening and reseal work before we start. You always get a written price first.
Trusted Brands We Service in Keene
We work on all major residential equipment in Keene and we know which systems are common in this area: Trane, Carrier, Lennox, Goodman, Rheem, and American Standard. Because Keene has a mix of older rural setups and newer suburban installs, we keep our process brand-agnostic: same cleaning standard, same equipment, same flat pricing. Our technicians run Rotobrush agitation tools and Nikro HEPA filtration on every job, and we stock Guardsman and Aprilaire filtration products for Keene homeowners who want upgraded air quality after their cleaning. If you are not sure what equipment you have, call us and we will talk you through how to read the model plate.
Common HVAC Cleaning Problems We See in Keene Homes
- Sagging return-side flex duct. In older Keene homes, particularly single-story builds off Old Betsy Road and around the Johnson County line, we regularly see return-side flex runs that have sagged between supports. That sag creates a low spot where lint, pet hair, and dust collect, then get pulled toward the air handler. Cleaning the duct without fixing the sag means the problem returns within a year.
- Dirty evaporator coils from central Texas dust. Keene sits in a dry, dusty region, and the fine clay and limestone dust that blows in from open fields settles on wet evaporator coils fast. Homes along FM 2280 and County Road 802 see this more than shaded, developed blocks. A coil loaded with that dust drives up runtime and shortens compressor life.
- Blower wheels caked with construction debris. In newer Keene builds, especially in subdivisions near the city core, we find blower wheels packed with drywall dust and insulation overspray from the original build. Builders rarely clean the ducts after construction, so the first homeowner inherits the mess. A one-time deep clean usually fixes it permanently.
- Neglected returns, not just supply vents. The most common incomplete job we see from other companies is cleaning only the visible supply registers while skipping the return-side duct. In Keene’s older homes with long return runs, that is where the majority of dust actually accumulates. We clean both sides, and we photograph both sides.
Pricing for HVAC Cleaning in Keene, TX
Full HVAC cleaning in Keene, which includes the evaporator coil, blower assembly, supply ducts, and return ducts, runs $350 – $650 on a typical single-family home. Smaller systems or single-story homes with short runs land at the lower end. Larger two-story homes or older rural properties with long flex runs and heavier buildup land at the higher end. AC-only cleaning, covering the coil and blower without ductwork, runs $180 – $320. Evaporator coil cleaning alone runs $150 – $280.
We charge one flat price per system. Not per vent. That matters in Keene because larger rural homes have long duct runs with many registers. A per-vent quote penalizes you for square footage. You get a written price before any work starts, and that number does not change when the technician arrives. Call (737) 727-2314 for a free estimate on your specific system.
We are part of the Relay Home Co. family, founded 2005, and every booking comes with The Relay Visibility Guarantee: a live trackable arrival time, before-and-after photo documentation, and a digital invoice payable from a link on your phone. No four-hour windows, no phone tag, no surprises.
We Also Serve Cities Near Keene
Cardinal Air Duct Cleaning serves the full Keene area and surrounding Johnson County communities. If you are in Cleburne, Joshua, Alvarado, or Burleson, we bring the same flat per-system pricing, the same 365-Day Done Right Promise, and the same professional equipment to your door. Learn more about our HVAC Cleaning in Keene coverage or explore the full scope of our HVAC Cleaning services, including coil treatment, blower cleaning, and heat exchanger work.
Serving Keene, TX - Our Local Coverage Area
We’re based in the Keene 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 Keene
Every 3 to 5 years is realistic for most Keene homes. If you have multiple indoor pets, live near open fields or unpaved roads, recently renovated, or have a smoker in the house, you may need it every 2 to 3 years. If your system is sealed well and you change filters monthly, 5 years is reasonable. We will tell you honestly if your ducts do not need cleaning yet. Call (737) 727-2314 and we will walk through what we look for.
Per system. Always. We charge one flat price per HVAC system, agreed in writing before work starts. Keene has a lot of larger rural homes with long duct runs and many registers, and per-vent pricing punishes those homeowners. You will never see a per-vent line item on our invoice. The price you are quoted is the price you pay.
We set up negative-pressure extraction using a Nikro HEPA vacuum, which means the loosened debris goes straight into the vacuum, not back into your living room. Then we agitate the inside of every supply and return duct with Rotobrush rotary brush tools, clean the evaporator coil and blower assembly, and photograph everything before and after. You see real images of your own ducts when we are done, not stock photos.
Yes. Evaporator coil cleaning is included in our full HVAC cleaning package, and we can also do it as a standalone service. In Keene’s humid summers, the coil is usually the dirtiest component in the system, and we recommend it be cleaned any time the ducts are cleaned. The coil and blower work adds about an hour to the visit for a typical residential system.
We schedule every job in advance so we can give you a live trackable arrival window through The Relay Standard. While we do not promise same-day service, our scheduling team coordinates from the Dallas-Fort Worth office and works to get Keene customers on the schedule as quickly as realistically possible. Call (737) 727-2314 and we will give you the next available window, no phone tag and no voicemail loops.
Your Keene HVAC System Deserves a Real Cleaning
We recently worked a single-story home off Old Betsy Road with a 4-ton system. The return-side flex run had sagged, trapping lint and dust before the air handler, and the blower motor was pulling hard. We set up negative pressure, used agitation tools through the supply and return ducts, cleaned the evaporator coil, and sealed the sagging run so the system could breathe again. That is the kind of work we do across Keene, from homes near the city core to properties out toward the Johnson County line.
If your HVAC system is not moving air the way it should, call us at (737) 727-2314. You get a free estimate, a written price before work begins, and before-and-after photos of your own ducts. No per-vent pricing, no surprises, no pressure.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Keene and the surrounding Johnson County area.