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.
Before
After
Before
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Before
AfterAbatement Technologies Duct Sealing & Repair: The Denver Owner’s Guide
We stock and install Abatement Technologies-compatible duct sealing and repair components for Denver homeowners, with typical installed pricing ranging from $340 to $780 depending on system size and access. Most Abatement Technologies sealing jobs are completed in a single scheduled visit, and we carry the common PREDATOR and CAP series-compatible gasket sets and collar assemblies on our trucks. Homeowners usually discover the failure when they notice dust blowing from a previously sealed register or see their energy bill climb 15-20% without explanation - the seal that held for years has cracked or the adhesive collar has pulled away from the plenum.
Which Abatement Technologies Models This Applies To
Abatement Technologies manufactures several duct sealing product lines, and matching the right repair component matters more than with generic brands. The PREDATOR 800-series portable air scrubbers use a specific 16-inch diameter gasket collar with a dual-lip silicone seal, while the CAP600 and CAP1200 central air purification systems require a plenum-mounted sealing assembly with a 3-bolt flange pattern. The HEPA-CARE HC500CD and HC800CD ceiling-mounted units use yet a different gasket profile - a rectangular foam-composite seal that degrades faster in Denver’s low-humidity winter air.
To identify your part, check the metal specification plate on the unit housing (not the filter frame) for a six-digit model code beginning with 8 or 9. The last two digits indicate the seal revision: -02 and later use the current silicone compound; -01 units shipped with neoprene that we replace with the upgraded material. We source OEM Abatement Technologies gaskets and also stock a cross-referenced aftermarket equivalent from Guardsman that meets the same static-pressure rating at roughly 30% lower part cost. For systems under warranty, we use OEM exclusively; for out-of-warranty units, we show customers both options in writing before work starts. CleanRun Air Duct Cleaning Denver is an independent service provider, not affiliated with Abatement Technologies.
Signs Your Abatement Technologies Duct Sealing & Repair Is Failing
- Dust accumulation on ceiling or wall surfaces near the unit. When the plenum seal fails, the negative-pressure extraction (the suction that pulls air through your ductwork) draws attic or wall-cavity debris through the gap. The camera often shows a black stripe on the duct exterior where air has been leaking for months.
- Uneven heating or cooling between rooms on the same zone. A compromised seal at the main trunk line reduces airflow to downstream duct runs. We measure this with a manometer; a pressure drop exceeding 0.5 inches water column at the plenum indicates seal failure.
- Whistling or rushing air sound from the unit cabinet. This usually means the gasket has compressed or torn, creating an audible bypass. On PREDATOR units mounted in basements, the sound carries through floor joists and is often reported as “something wrong with the furnace.”
- Increased energy bills without thermostat changes. Leaky seals force your HVAC system to run longer to achieve setpoint. In Denver’s 5,280-foot elevation, where air is already less dense, every cubic foot of conditioned air lost to leakage costs more to replace.
- Visible cracks or hardening in the gasket material. Neoprene seals on older units become brittle after 6-8 years of thermal cycling; silicone lasts longer but can develop compression set. We photograph this during inspection so you can see the material condition yourself.
BeforeAfterReplacement Cost & What’s Included
| Scope | Price Range (Denver) | What’s Included |
|---|---|---|
| Single register seal replacement | $180 - $280 | OEM or Guardsman gasket, labor, photo documentation, 365-Day Done Right Promise |
| Plenum collar reseal (Abatement Technologies CAP series) | $340 - $520 | Gasket assembly, flange hardware, negative-pressure test, photo record, written warranty |
| Full system reseal (multiple runs, main trunk) | $580 - $780 | All gaskets and collars, labor, before/after photo record of every duct run, written scope and price under Haven Standard Clause 1 |
What drives the range: access difficulty (crawl space vs. utility room), whether the original seal has bonded to the metal and requires surface restoration, and whether we find collateral damage like corroded flanges from condensation. Every job starts with a written price before any work begins - Haven Standard Clause 1 - and concludes with a Documented Photo Record of every sealed joint, delivered as part of your job record. The 365-Day Done Right Promise covers the workmanship; gasket material defects are covered by manufacturer warranty.
DIY or Call Us?
There is no high-tension danger in duct sealing, but there is a precision problem. An owner can safely inspect: power down the unit, remove the access panel, and photograph the gasket condition with a phone flashlight. What you cannot do accurately without tools is measure static-pressure loss across the seal or verify that your replacement gasket matches the flange bolt pattern - Abatement Technologies changed from 3-bolt to 4-bolt on some CAP1200 units in 2019, and the wrong gasket will leak from day one.
Where DIY goes wrong: applying generic foil tape or mastic to a failed gasket instead of replacing the engineered seal. This temporarily reduces leakage but creates turbulence that accelerates erosion at the joint. We remove this kind of “repair” regularly in Capitol Hill homes where owners tried a fix before calling. If you want to verify the problem yourself, take the photo. Then call us at (720) 799-2292 and we’ll put our written estimate next to anything you’ve been quoted.
FAQs
Silicone-based seals last 10-14 years in Denver’s climate; neoprene on units installed before 2018 typically fails in 6-8 years due to thermal cycling and low winter humidity. The dry air here accelerates compression set, which is why we upgraded to silicone-equivalent replacements on every neoprene job since 2019. Call (720) 799-2292 for an exact quote - estimates are free.
Temporary patching with mastic or tape is possible but we do not recommend it - it masks the underlying gasket failure and often makes full replacement more expensive because we have to remove the amateur repair first. Haven Standard Clause 1 requires us to quote the correct fix, not the cheap one. Call (720) 799-2292 for an exact quote - estimates are free.
A single register or collar seal takes 45-90 minutes; a full system reseal on a typical Denver ranch home takes 3-4 hours. We schedule a specific arrival window, not an all-day window, and the technician is identified by name before arrival under Haven Standard Clause 3: Verified Crews. Call (720) 799-2292 for an exact quote - estimates are free.
We carry the common PREDATOR and CAP series gasket sets, collar assemblies, and flange hardware on every CleanRun truck serving Denver. Less common HC-series ceiling unit seals are available next-day from our supplier. We verify fitment by model number before dispatch so the technician arrives with the correct part. Call (720) 799-2292 for an exact quote - estimates are free.
What to Expect When You Call
Every call is answered by a live person, 24/7. We’ll ask for your Abatement Technologies model number (from the specification plate, not the filter), describe what you’re seeing or hearing, and schedule a technician who arrives uniformed, background-checked, and identified by name. The technician photographs the failed seal, explains what the camera found, and delivers a written price before any work starts. Here is what the camera found. Here is what it costs to fix it. You decide.
The job concludes with a Documented Photo Record of every sealed joint, a written scope under Haven Standard Clause 1, and the 365-Day Done Right Promise backed in writing. Tomas Reyes, who grew up in Queens and learned the trade at Manhattan’s Apex Technical School, established this practice in 2013 after seeing too many Denver homeowners pay for duct work they couldn’t verify actually happened. He and the crew have photographed every register, plenum, and main trunk line on 52,000+ jobs since.
Bring us a competitor’s written estimate and we’ll deliver a Free Second Opinion in writing, no cost. Our equipment roster includes Rotobrush, Nikro, Abatement Technologies, Honeywell, Aprilaire, and Guardsman - professional-grade tools you can look up independently.
Call (720) 799-2292 for your free estimate. We’ll answer.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning Denver at CleanRun Air Duct Cleaning Denver, serving Denver and nearby areas.