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.
Abatement Technologies Coil Cleaning: The Denver Owner’s Guide
Abatement Technologies coil cleaning in Denver typically runs $340-$580 for a complete evaporator or condenser coil service, including access, chemical wash, and post-cleaning verification photo. We stock Abatement Technologies-compatible coil cleaning kits and replacement coils for the CAP600, HEPA-AIRE, and Predator series on our Denver trucks, and most residential jobs are completed in a single scheduled visit. Most owners discover the problem when their upstairs rooms won’t cool below 78°F despite the compressor running nonstop, or when they notice a sweet, chemical odor that wasn’t there last season.
Which Abatement Technologies Models This Applies To
Abatement Technologies builds coil-dependent equipment across three main residential and light-commercial lines we service in Denver: the CAP600 portable air scrubbers, the HEPA-AIRE negative-pressure systems, and the Predator gas-powered vacuums used in larger remediation jobs. Each series uses a different coil geometry. The CAP600 line runs a 16-by-20-inch slab coil with aluminum fins on copper tubing; the HEPA-AIRE PAS2400 and PAS5000 units use a deeper 20-by-24-inch A-coil configuration. The Predator 750 and 1200 vacuums don’t have evaporator coils in the traditional sense, but their inline cooling coils for motor thermal management use the same fin density and are often mistaken by owners for the main HVAC coil.
To identify your part, check the metal specification plate on the unit housing, not the cardboard box the machine shipped in. The plate lists the model suffix, which determines coil depth and connection orientation. For example, a CAP600-UVP takes a coil with a right-hand suction line; the standard CAP600 is left-hand. That distinction matters because the lines are not reversible without brazing new connections, and most Denver basements don’t give you room to rotate the entire housing. We carry both orientations because we’ve learned the hard way that guessing wastes a return trip through I-70 traffic.
OEM Abatement Technologies coils run 30-40% higher than quality aftermarket equivalents from companies like Refrigeration Technologies or CoilCraft. For most Denver homeowners, the aftermarket coil matches fin count, BTU rating, and pressure drop within manufacturer spec. The exception is HEPA-AIRE units under active remediation warranty; those contracts often require OEM parts documentation. We’ll tell you which applies before we write the price.
Signs Your Abatement Technologies Coil Cleaning Is Failing

- Uneven cooling across floors. The upstairs registers blow 10-15 degrees warmer than downstairs. In Denver’s dry climate, this usually means the coil’s upper fins are packed with construction dust that settled during the 2015-2020 building boom; the lower section still passes air, but the thermal exchange is cut in half.
- Ice formation on the refrigerant lines. You’ll see frost on the suction line at the coil header, sometimes extending back toward the compressor. This happens when airflow drops below 350 CFM per ton because fin corrosion has narrowed the gaps; the refrigerant can’t absorb enough heat, so it boils below freezing and ices the line.
- Musty or sweet chemical smell from registers. Abatement Technologies units with UV-C options can produce ozone-like odors when organic buildup on the coil reacts with the lamp. In Capitol Hill and other Denver neighborhoods with original galvanized ductwork, we’ve found this smell is often the first clue that the coil has become a biofilm reservoir.
- System short-cycling. The compressor starts, runs three to four minutes, and shuts off before the thermostat satisfies. The coil can’t transfer heat efficiently, so the high-pressure switch trips. Homeowners often misdiagnose this as a thermostat problem and waste $200 on a replacement that doesn’t change the cycle timing.
- Water stains below the air handler. A clogged condensate pan overflows because algae and dust have blocked the drain port. In Denver’s hard water environment, calcium scaling accelerates this; the pan fills in hours instead of days. We’ve pulled pans in Park Hill homes where the coil was so dirty the sludge had formed a solid bridge across the drain fitting.
Before
AfterReplacement Cost & What’s Included
For Denver-area Abatement Technologies coil cleaning and replacement, our installed pricing breaks down as follows:
| Service | Price Range |
|---|---|
| Evaporator coil chemical cleaning (in-place) | $340-$420 |
| Condenser coil cleaning (outdoor unit) | $280-$360 |
| Coil removal, deep clean, and reinstall | $420-$520 |
| Full coil replacement with OEM or equivalent | $480-$580 |
| Condensate pan and drain line service (if needed) | $120-$180 |
What drives the range: accessibility. A coil behind a finished basement ceiling in Cherry Creek takes longer to reach than one in an open utility room in Stapleton. We photograph the access before we write the price, so you see what we’re working with. Every Abatement Technologies coil job includes the documented photo record, Haven Standard Clause 1 written price agreement, and the 365-Day Done Right Promise. If the coil fails due to workmanship or material defect within a year, we replace it at no charge. No manager approval needed; it’s in writing on the original job record.
DIY or Call Us?

There is a safe middle ground and a hard stopping point with Abatement Technologies coil work. A homeowner can verify the symptom: check the filter, listen for the compressor, and look for the ice or water we described above. You can also read the specification plate and confirm the model number against your manual. What you should not do is open the refrigerant circuit, cut lines, or attempt to remove the coil yourself. These systems hold a refrigerant charge under pressure; venting it violates federal EPA regulations, and handling it without Section 608 certification exposes you to fines and frostbite injuries from liquid refrigerant.
The fin cleaning you see advertised in hardware stores, the foaming spray that claims to work without disassembly, will not reach the interior rows of an Abatement Technologies coil. The fins are too dense, and the debris is too deep. We’ve been called to dozens of Denver homes where the owner spent $40 on cleaner, got surface brightness, and still had the same temperature split two days later. Here is what the camera found. Here is what it costs to fix it. You decide. Call (720) 799-2292 when you’re ready for the photo record and the written price.
FAQs
In Denver’s high-altitude, low-humidity climate, a properly maintained Abatement Technologies coil typically lasts 12-15 years. The dry air reduces corrosion compared to coastal markets, but the intense UV at 5,280 feet degrades the fin coating on outdoor condenser coils faster than manufacturers rate for sea-level conditions. We’ve replaced CAP600 coils in Park Hill homes that were 18 years old and still functional but so corroded the efficiency had dropped below 60%. Call (720) 799-2292 for an exact condition assessment; estimates are free.
Yes, if the fins are intact and the tubing has no leaks. Chemical cleaning and straightening can restore 85-90% of original heat transfer in most cases we see in Denver. Replacement becomes necessary when freeze-thaw cycles have split the tubing, or when fin corrosion has progressed to the point that the metal crumbles on contact. We photograph the coil before recommending either path; Haven Standard Clause 1 requires the written price reflect the actual scope, not a default upsell. Call (720) 799-2292 for a free second opinion on any estimate you’ve already received.
A straightforward replacement on an accessible unit takes three to four hours, including recovery of the old refrigerant, brazing the new coil, pressure testing, evacuation, and recharge. Jobs in finished spaces, or where the coil is nested inside a custom plenum, can run five to six hours. We schedule a four-hour window and communicate if the scope changes. Tomas Reyes and our crew have done enough of these in Denver’s older Capitol Hill buildings to know where the surprises hide; we build that into the upfront price, not a mid-job addendum.
We stock the common CAP600 and HEPA-AIRE coil configurations on our Denver service vehicles. Less common Predator cooling coils and discontinued series are available next-day through our wholesale supplier. If your unit is down and the coil is not on the truck, we’ll tell you before we leave your driveway, not after we’ve opened the housing. We also stock Lennox, Trane, and Carrier coils for mixed-system homes; many Denver properties have Abatement Technologies air scrubbers paired with a different-brand furnace. Call (720) 799-2292 to confirm availability for your model.
CleanRun Air Duct Cleaning Denver is an independent service provider; we are not affiliated with Abatement Technologies. We service their equipment using OEM and quality aftermarket parts, documented procedures, and the H.A.V.E.N. Standard. Every technician is background-checked and uniformed, identified by name before arrival, and every job concludes with a photo record of every duct run, plenum, and coil accessed.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning Denver at CleanRun Air Duct Cleaning Denver, serving Denver and nearby areas.




Before
After
Before
After