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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AfterTrusted HVAC Cleaning Nationwide
HVAC cleaning means removing the dust, debris, and biological buildup that accumulates inside your heating and cooling system over months and years of continuous air movement. Most standard air duct cleanings run $450 – $950 for a typical home, while coil cleaning adds $150 – $300 depending on system size and access. At Cardinal Air Duct Cleaning, we’ve been doing this work since 2005 as part of the Relay Home Co. family, and we approach every job the same way: a written price before any work starts, background-checked technicians in uniform, and before-and-after photo proof of everything we touch. Call (737) 727-2314 and you’ll reach a live person, day or night.
AC Coil Cleaning
AC Coil Cleaning is the removal of dirt, dust, and grime from the evaporator coil inside your air handler and the condenser coil in your outdoor unit. When those coils get caked with buildup, your system can’t transfer heat efficiently, so it runs longer and works hotter to hit the same temperature. We see this constantly: a coil covered in a gray paste of dust and moisture, robbing the system of 15 – 30% of its cooling capacity. Cardinal Air Duct Cleaning uses professional-grade coil cleaners and fin combs to restore surface area without damaging the delicate aluminum fins, and coil cleaning on a typical split system runs $150 – $300. We write the price down before we touch anything, and it does not change at the door.
Inside the Air Handler
The evaporator coil sits in the dark, damp air handler cabinet, which makes it a magnet for dust and, in humid conditions, microbial growth. A dirty coil also drips more condensate, which can overflow the drain pan and damage surrounding materials. We clean and treat the coil surface, then verify the condensate line drains properly before we close the cabinet back up.
The Outdoor Condenser Unit
The outdoor coil collects grass clippings, cottonwood fuzz, leaves, and road dust, and a restricted condenser coil drives up head pressure and shortens compressor life. We shut off power at the disconnect, remove the cabinet top and side panels, and clean the coil from the inside out so debris exits rather than getting pushed deeper in. If fins are mashed flat, we straighten them with a fin comb as part of the same service visit.
AC Cleaning
AC Cleaning is a full-system clearing of the components that move and condition your air: the coils, the blower wheel, the blower motor housing, the condensate line, and the cabinet interior. Many companies call this a “tune-up” but never actually open the air handler; we open it. A complete AC Cleaning on a standard residential split system runs $250 – $500 depending on how much buildup has accumulated and how accessible the air handler is, which is part of our HVAC Cleaning in Los Angeles. The blower wheel is where the real mess hides: we’ve pulled blower wheels so choked with wet dust that the system was moving half the airflow it was designed for. Cardinal Air Duct Cleaning technicians arrive with everything needed to do the job properly and hand you a written price before tool ever touches metal.
Blower Wheel and Motor Housing
A dirty blower wheel is out of balance and works against itself, wasting energy and putting premature wear on the motor bearings. We pull the blower assembly, clean each blade by hand, and inspect the motor for signs of heat damage. The difference in airflow after a proper blower cleaning is something you feel at the registers within the hour.
Condensate Line and Drain Pan
A clogged condensate line is the most common cause of water damage around an AC system, and it’s almost always preventable. We flush the line, check the safety float switch, and clean the drain pan so water has a clear path out of your home. If we find the line has been backing up, we’ll tell you and show you before we finish.
Evaporator Coil Cleaning
Evaporator Coil Cleaning targets the single most important heat-exchange surface in your entire HVAC system: the indoor coil that absorbs heat from your home’s air. This coil operates in the cold, damp air stream leaving your system, so it collects dust and, in many homes, a biofilm layer that smells and restricts airflow. Evaporator Coil Cleaning through Cardinal Air Duct Cleaning runs $150 – $300 on a standard accessible air handler, and we use a combination of compressed air, pump sprayers, and non-caustic coil cleaner so the aluminum fins are not damaged. If you’re wondering how much HVAC Cleaning costs for your whole system, we provide full quotes before starting any work. If your system is short-cycling, struggling to reach set temperature, or the air smells musty when the AC first kicks on, the evaporator coil is the first place we look.
Signs the Coil Is Plugged
When the evaporator coil is restricted, the system runs longer to satisfy the thermostat, and the coil can ice over even on warm days. You may notice weak airflow from the registers despite the fan running at full speed, or visible ice forming on the refrigerant lines at the air handler. Both are signs the coil needs immediate attention before the compressor takes damage.
How We Do It Without the Mess
Cleaning an evaporator coil in place is a controlled process: we lay down protection under the air handler, apply cleaner that clings to the coil face, then rinse and capture the runoff so it does not soak the blower motor below. Every opening we make gets sealed back up and photographed before and after. The coil should look new when we’re done, and the photos prove it.
AC Duct Cleaning
AC Duct Cleaning is the removal of accumulated dust, debris, pet hair, and construction residue from the supply and return ductwork that carries cooled air through your home. This is the service where professional-grade equipment matters most: a shop-vac attached to one register simply cannot create the negative pressure needed to pull debris out of an entire duct run. Cardinal Air Duct Cleaning uses Nikro HEPA-rated vacuum extraction and Rotobrush rotary brush systems to agitate and lift debris from the duct walls, and a full HVAC Cleaning - Bell AC Duct Cleaning on a typical home runs $450 – $950. The return side is almost always the dirtiest part of the system, because it pulls unfiltered air from your living space through a single large chase.
The Return Side Problem
Return ducts see the most volume of air and often the least filtering, so they accumulate dust, pet hair, and fine grit faster than any other part of the system. If your return registers look dusty even after you change the filter, the ducting behind them is far worse. We clean returns from the register and from the air handler side so the full run is cleared.
Supply Runs and Registers
Supply ducts distribute conditioned air to each room, and every register is an opportunity for debris to settle into the duct boot and get pushed back out into your living space. We remove and clean each register or grille, brush the boot opening, and seal the run so air goes where it belongs. Before we finish, we photograph representative sections of the ducting so you can see the difference rather than taking our word for it.
Furnace Cleaning
Furnace Cleaning is the clearing of combustion and airflow components inside your gas or electric furnace: the blower wheel, the blower motor housing, the heat exchanger surface, the burners, and the ignition assembly. A furnace that runs all winter builds up dust in the blower and, on gas units, soot and corrosion around the burners that affects combustion efficiency and can become a carbon monoxide concern if the heat exchanger is compromised. Cardinal Air Duct Cleaning performs a full Furnace Cleaning as part of an HVAC Cleaning in Huntington Park visit, and the furnace portion typically runs $200 – $400 depending on unit size and accessibility. We open the cabinet, clean the blower, inspect the heat exchanger with a camera, and confirm the burners and flame sensor are in safe working condition before we seal it back up.
Blower and Airflow Cleaning
The furnace blower wheel is the same component that moves air in the summer, so cleaning it during furnace service improves heating and cooling performance year-round. A dusty blower wheel strains the motor, and a clean wheel moves noticeably more air through the home. We clean each blade individually and inspect the motor for wear, then photograph the assembly before reinstalling.
Combustion Safety Check
On gas furnaces, we inspect the burner tubes, the flame sensor, and the heat exchanger surface for any signs of cracking, rust-through, or flame rollout. A cracked heat exchanger is a serious safety issue, and if we find one during Furnace Cleaning, we’ll show you the evidence and stop work immediately so you can make an informed decision. Our obligation is to your safety first, and we never ignore a combustion concern to finish a cleaning.
AC Vent Cleaning
AC Vent Cleaning clears the visible register openings, boots, and short duct transitions where dust settles at every supply and return point in your home. Vents are where you see the problem, and cleaning them is part of a complete duct cleaning, not a substitute for it. AC Vent Cleaning alone, when done properly by hand at each opening, typically runs $10 – $15 per vent, but we almost always recommend including it as part of the full duct cleaning so the work is done once and done right. Cardinal Air Duct Cleaning removes each vent cover, wipes and sanitizes it, vacuums the boot transition, and re-seats the cover so it sits flush and clean.
Why Register-Level Cleaning Isn’t Enough
The visible vent cover is only the last few inches of a system that can run fifty feet or more through walls, floors, and ceilings. Wiping the register without cleaning the duct behind it is like washing the outside of a cup and ignoring the inside. We photograph inside the duct boot at random intervals so you can see what was actually removed.
When Vents Get a Deeper Problem
Vents in bathrooms, kitchens, and laundry areas collect a sticky residue that plain dusting does not remove: from shower moisture, cooking oils, and dryer lint migration. This coating holds dust in place and can trap odors. We use a mild degreaser and microfiber on these covers, then confirm airflow is moving freely through the boot after we’re done.
Furnace Duct Cleaning
Furnace Duct Cleaning is the removal of dust, pet dander, and debris from the ductwork that distributes heated air during the winter, using the same negative-pressure extraction as our AC duct service. The main difference is timing and motivation: HVAC Cleaning in South Gate for furnace ducts sees heavy use for half the year, and the dry winter air bakes dust into a fine powder that recirculates every time the blower kicks on. Furnace Duct Cleaning on a typical home runs $450 – $950, and the best time to schedule is in the fall before heating season starts. Cardinal Air Duct Cleaning connects our Nikro HEPA vacuum system to the air handler plenum so the entire duct network is placed under negative pressure while our Rotobrush system agitates the duct walls branch by branch.
Before the Cold Hits
Fall scheduling gives you clean ductwork before the furnace fires for the season, which means the first heat cycle isn’t burning off a summer’s worth of accumulated dust. That burning smell when the furnace first kicks on is almost always dust on the heat exchanger and the inside of the ducts. Cleaning ahead of the season means you don’t breathe that all winter.
The Trunk Line and Branch Runs
The main trunk line carries the most air and usually holds the most debris, especially in older homes where decades of dust have settled in the rectangular duct runs. We cut small access points as needed, clean the trunk line fully, and seal the access with proper duct patches that maintain airflow and pressure. The branch runs to each room are then cleaned from the register side and the trunk side where possible.
Brands We Service
Our technicians work on every major HVAC brand, and we carry specific experience with Honeywell and Aprilaire components, which are among the most common filtration and control systems installed in American homes. Honeywell media cabinets and electronic air cleaners need periodic cleaning of pre-filters, cells, and cabinet interiors to keep air flowing, and we know how to do that without bending the collector plates or shorting the high-voltage contacts. Aprilaire whole-home humidifiers and air purifiers are another favorite of ours: we clean the water panel, check solenoid operation, and clear the drain path so the unit doesn’t become a source of standing water and mineral buildup.
We also work extensively with Rotobrush and Nikro equipment on our side of the job, which means we understand what those brands are capable of and we keep our machines maintained to factory standards. Whether you have a Trane, Carrier, Lennox, Rheem, Goodman, York, or any other make, we can clean and service the system properly. The principles are the same, and we never use a brand name as an excuse to charge you more.
Signs You Need a Pro Right Now
- Visible dust on registers within days of cleaning. This means ductwork is holding dust and the blower is pulling it back out into your living space. A professional cleaning addresses the duct runs, not just the grill faces.
- Musty or stale smell when the system runs. That odor usually means microbial growth on the evaporator coil or in the condensate pan. It does not go away on its own, and it recirculates through the home every cycle.
- System runs constantly but the home never feels comfortable. Restricted coils and clogged blowers force the system to work longer to hit the thermostat setting. Cleaning restores airflow and can cut energy use noticeably.
- A dusty film on furniture despite frequent cleaning. This is the signature of a duct system that is leaking dust into the air stream or pulling it from an unfiltered return path. The source is almost always inside the ductwork.
- Uneven airflow between rooms. One room stays cold while another stays warm, and it is not an insulation issue. Blockages in branch lines, crushed ducts, or a dirty blower wheel often explain it.
Our Process, Step by Step
- 1
Inspection and written quote. We walk the system with you, open the air handler, and check the condition of the coils, blower, filter, and accessible duct runs. Then we hand you a written price for the full job before any work begins, so you know exactly what it costs.
- 2
System protection. We cover work areas, power down the equipment at the disconnect, and seal off registers that are not being actively serviced. Your floors and surroundings stay clean while we work.
- 3
Negative-pressure extraction. We connect our Nikro HEPA-rated vacuum to the air handler plenum so the entire duct system is placed under negative pressure. This means loosened debris goes straight into the vacuum, not back into your living room.
- 4
Rotary brush agitation and component cleaning. We run Rotobrush agitation tools through each branch line to dislodge stubborn buildup, then clean the coils, blower wheel, and cabinet by hand. Every section gets photographed before we move on.
- 5
Final walkthrough and documentation. We show you before-and-after photos of the coil, blower, and representative duct sections, answer any questions, and send a digital invoice by link. If anything is not right, the 365-Day Done Right Promise covers it.
How Much Does HVAC Cleaning Cost?
Most standard air duct cleanings run $450 – $950 for a typical single-family home, and the price depends on home size, number of duct runs, and how much debris has built up. AC coil cleaning adds $150 – $300, and a full-system AC cleaning that includes the blower wheel, motor housing, condensate line, and cabinet interior runs $250 – $500. Furnace cleaning lands in the $200 – $400 range on its own but is commonly bundled with duct service to save you a second trip fee. The biggest factors are total square footage, number of registers, accessibility of the air handler, and the age of the system; older homes with decades of dust will take longer to clean than newer builds. You should never accept a quote given over the phone without an inspection, and you should never accept a price that changes once the technician arrives. Cardinal Air Duct Cleaning gives you a written price before work starts, and that price is the price. Our free estimate includes an on-site inspection, a written line-by-line quote, and a conversation about what actually needs cleaning and what does not. Call (737) 727-2314 to schedule one.
Where We Work
Cardinal Air Duct Cleaning serves homeowners and businesses across the United States through local crews that are independently owned and operated but held to the same Relay Visibility Guarantee. Wherever you are, the standard is the same: a live trackable arrival time, before-and-after photo proof, and a written price before any work starts. Each local crew runs the same equipment, follows the same process, and backs every job with the same 365-Day Done Right Promise.
Frequently Asked Questions About HVAC Cleaning
HVAC cleaning is the process of removing dust, debris, and biological buildup from every component your air moves through, including the coils, blower wheel, motor housing, condensate line, and ductwork. For a full walkthrough of what’s involved, see The Complete HVAC Cleaning Guide for Los Angeles Homeowners. It is more than a duct cleaning because it opens the air handler and cleans the internal components that a duct-only job leaves untouched. A complete HVAC cleaning restores proper airflow and reduces the recirculation of dust through your home.
Most full HVAC cleaning jobs take 3 – 5 hours from arrival to final walkthrough, depending on the size of the home and the condition of the system. A home with four duct runs and a clean coil will go faster than a five-bedroom house with decades of dust and a heavily soiled blower wheel. We schedule each job with enough time to do it right rather than rushing to the next call, and we give you a live trackable arrival window through The Relay Standard booking experience. Not sure whether to tackle maintenance yourself? Read our comparison of DIY vs Professional HVAC Cleaning: What’s Safe to Do Yourself.
Full HVAC cleaning on a typical home runs $450 – $950 for ductwork, $150 – $300 for coil cleaning, and $250 – $500 for a complete AC cleaning that includes the blower and condensate line. Furnace cleaning alone runs $200 – $400. Call (737) 727-2314 for an exact quote: our estimates are free and the written price does not change at the door.
Yes, we clean and maintain every major HVAC brand, including Carrier, Trane, Lennox, Rheem, Goodman, York, and all others. Our technicians have worked on Honeywell and Aprilaire filtration and humidity control products extensively, and we clean any system using the same process regardless of make. The brand of your equipment does not change the price.
Most HVAC cleaning is scheduled, not emergency work, but a live person answers our phones 24/7 at (737) 727-2314. If you have signs of a cracked heat exchanger, water leaking from the unit, or a burning smell that won’t stop, call us immediately and we will work you in as fast as possible. Genuine safety concerns are always prioritized.
Every job is backed by our 365-Day Done Right Promise: if the work is not right within a full year, we return and correct it at no charge. That means the longest-standing satisfaction window in the trade, covering every job without exception. On repairs, you also get a written guarantee, plus a free second visit if the repair fails within the covered period.
You don’t need to do much, but clearing a path to the air handler, furnace, and outdoor condenser unit saves time and makes the visit smoother. If the air handler is in a closet or attic, having that area accessible lets our technician start immediately. We bring drop cloths and protection and handle the rest, and we’ll text you our live arrival window before we get there.
Schedule Your HVAC Cleaning Service Today
Ready to breathe cleaner air and cut the dust cycle in your home? Call (737) 727-2314 now for a free, no-obligation estimate. You’ll get a written price before any work starts, a live trackable arrival window, and photo proof when the job is done. That’s the Relay Standard, and it applies to every appointment.
Written by Omar Haddad, Owner of Cardinal Air Duct Cleaning, serving customers nationwide since 2005.