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.
Honeywell Coil Cleaning: The Marietta Owner’s Guide
Honeywell coil cleaning in Marietta typically runs $180 to $450 for a full evaporator and condenser coil service, depending on how badly the coils are fouled and whether your system needs antimicrobial treatment afterward. We stock Honeywell-compatible coil cleaning solutions and perform the work same-week for most homes. Most Marietta homeowners discover their coils need cleaning the hard way: the AC runs constantly in July, the house won’t drop below 78, and the electric bill from Cobb EMC is suddenly $80 higher than last summer. Coils caked in Georgia pollen, cottonwood, and attic dust simply stop transferring heat, so the compressor works overtime and the coil itself starts sweating, then freezing, then dripping into the pan.
Which Honeywell Models This Applies To
This applies to the Honeywell TrueSTEAM and TrueEASE humidifier lines, the Honeywell Home UV100 and UV240 surface treatment systems, and any Honeywell-branded forced-air coil paired with a split-system heat pump or central air conditioner. The coils themselves are usually manufactured under the Honeywell Home badge and sold as replacement evaporator coils for 2-ton through 5-ton systems, in slab and A-frame configurations.
The compatibility gotcha we see in Marietta is this: a Honeywell-branded coil on a 3.5-ton Trane condenser does not take a generic 3.5-ton coil cleaner if the fin spacing is tight-fin (14 fins per inch versus the standard 10-12). That tight fin spacing traps more dust and requires a gentler, foaming cleaner that dwells rather than a high-pressure rinse. Look at the data plate on the coil cabinet door. It lists the coil model number starting with “HWC” or “TC,” plus the fin count and refrigerant type. If the plate is faded or missing, look at the aluminum fins themselves: Honeywell tight-fin coils look denser to the eye, almost like a car radiator, compared to the wider gaps on a builder-grade coil.
For the OEM-versus-aftermarket decision on Honeywell specifically: we use the Honeywell-labeled coil cleaning chemistry when the system is under warranty, because Honeywell’s warranty terms in Georgia let them deny a claim if non-approved cleaning caused fin corrosion. On out-of-warranty systems, we use a commercial-grade alkaline cleaner matched to the coil’s metal; that’s usually Nu-Calgon or DiversiTech, which are quality equivalents without the OEM markup. We’re an independent provider, not affiliated with Honeywell, but we service their equipment every week.
Styles & brands we work with
Signs Your Honeywell Coil Cleaning Is Failing
- AC runs but the house won’t cool below 78 on a 92-degree Marietta afternoon. The coil is insulated by a layer of crud, so refrigerant can’t absorb heat from your air. The compressor is doing all the work with none of the payoff.
- Your energy bill spiked in June or July with no change in thermostat settings. A dirty coil reduces system efficiency by 20-40 percent. In Marietta, where AC runs from May through October, that’s hundreds of dollars over one season.
- Ice forms on the copper lines at the indoor unit. This is the coil freezing because it can’t exchange heat. The ice insulates it further, the coil thaws into the drain pan, and the pan can overflow into your closet or attic.
- You smell a musty, sour odor when the blower kicks on. That’s microbial growth multiplying in the moist, dust-packed coil. Honeywell coils with tight fin spacing hold moisture longer than open-fin designs, which makes this worse.
- The system short-cycles: it kicks on, runs seven minutes, shuts off for three, then repeats. The coil is so dirty that refrigerant pressure climbs too high, tripping the high-pressure switch. Every short cycle wears the compressor a little more. In Marietta’s humidity, this failure pattern shows up most often in homes near the Chattahoochee, where the air hangs wetter.
Replacement Cost & What’s Included
In Marietta, expect to pay $180 to $450 for a Honeywell coil cleaning, with most homes landing in the $220 to $320 range. The low end covers a one-person visit where the coil is accessible and only needs a foaming cleaner, dwell time, and rinse. The high end is a fully fouled evaporator coil in an attic with the furnace in the way, requiring removal of the coil panel, a two-stage cleaning, a pan treatment, and an antimicrobial application afterward. A condenser coil outside, caked in pollen and clippings, adds another $90 to $140.
What’s included: a written price before we start, the coil cleaner matched to your Honeywell coil’s metal and fin spacing, a full rinse that carries debris out through the condensate line, and a check of the drain pan and line while we’re in there. Every cleaning is backed by our 365-Day Done Right Promise: if the coil clogs again within a year because we didn’t get it clean, we return and correct it at no charge. The work has a written guarantee before we hand you the invoice.
See the difference
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After
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After
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AfterKey Takeaways
- Honeywell coil cleaning in Marietta runs $180-$450, with most homes at $220-$320.
- Tight-fin Honeywell coils need a foaming cleaner, not a high-pressure blast.
- Georgia’s May-through-October AC season means dirty coils cost you real money every month.
- We stock Honeywell-compatible cleaning chemistry on the truck and match it to your coil’s metal and fin count.
DIY or Call Us?
You can safely change your air filter and pour a cup of white vinegar down the condensate line once a season. That prevents the pan from backing up and buys you time. What you should not do is open the coil cabinet, spray a hardware-store cleaner onto the fins, and rinse it with a garden hose while the system is live. The coil sits next to electrical wiring, and the rinse water will find the blower motor if you angle it wrong. If the cleaner is too acidic for aluminum fins, you get pinhole leaks in the coil, and that’s a $1,200 replacement instead of a $280 cleaning.
We’ve pulled apart Honeywell coils in Marietta homes near Historic Marietta Square where a homeowner used a wire brush to “help” the cleaner along. The fins were folded flat over half the coil face, which destroyed airflow. The tool should do the heavy lifting, so the technician can focus on doing it right. That’s why we run Rotobrush and Nikro equipment: the agitation is controlled, the extraction is HEPA-rated, and the debris goes into the vacuum, not back into your living room. Call (762) 216-4075 and we’ll give you a straight answer on whether your coil needs cleaning or replacement, along with a written price before we touch anything.
FAQs
On average, a properly cleaned Honeywell coil in Marietta holds up for 12 to 18 months before it needs cleaning again. Homes near pine trees or on heavily landscaped lots may need it every 9 to 12 months because Georgia pollen loads are heavy in March through May. If you run your system year-round with a heat pump, plan on an annual cleaning. Give us a call at (762) 216-4075 and we’ll tell you straight whether your coil is due.
No. A dirty coil is not repairable; it’s cleanable. If the coil has a refrigerant leak or pinhole damage from corrosion, that’s a replacement, not a cleaning issue, and we’ll tell you that honestly before quoting work. Sometimes a coil is so far gone that cleaning would be wasted money, and part of our job is telling you that instead of taking a payment. Call (762) 216-4075 if you want an honest assessment.
A typical Honeywell coil cleaning takes 90 minutes to 3 hours, depending on how much of the coil cabinet has to come apart and whether we’re doing just the indoor coil or adding the outdoor condenser coil. Most Marietta homes are done in under two hours. If the coil is in an attic with tight access, add another 30 to 45 minutes. The written price we hand you before starting includes that access work, so the time won’t add money to the bill.
Yes. Our trucks carry Honeywell-labeled cleaning chemistry for warranty-covered systems, plus commercial-grade Nu-Calgon and DiversiTech cleaners for out-of-warranty work. We also carry the tools to address tight-fin Honeywell coils, which need a different approach than standard coils. We’ll match the cleaner to your coil’s model number from the data plate, not just spray whatever happens to be on the shelf. Call (762) 216-4075 and we’ll work around your schedule.
Yes. Alongside the Honeywell work, we routinely service coils on Lennox, Trane, and Carrier systems. The process is the same: match the cleaner to the metal, govern the rinse pressure to the fin spacing, and verify the drain line after. Honeywell tight-fin coils need a more patient dwell time than an open-fin Carrier coil, but the fundamentals don’t change.
Because the $49 price is bait. The tech arrives, opens the coil door, and tells you the coil needs a “deep clean” for an additional $400, or that the condenser needs “biocidal treatment” for another $250. The price changes once the van is in the driveway. Our price is written down before we start, and it does not change at the door. That’s the whole job. Dirty ducts don’t fix themselves, but neither do dirty coils, and playing games with the price doesn’t help anyone. Call (762) 216-4075 for a real quote.
Get a Straight Answer on Your Honeywell Coil
If your Honeywell system is running hot, freezing up, or costing more than it should, call us at (762) 216-4075. We’ll answer your questions directly, schedule a time that fits, and give you a written price before any work starts. You’ll get a live trackable arrival window, before-and-after photos of the work, and a digital invoice you can pay from your phone. That’s The Relay Standard. Every booking, every time.
Written by Omar Haddad, Owner, Cardinal Air Duct Marietta at Cardinal Air Duct Marietta, serving Marietta and nearby areas.