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 Duct Repair & Sealing in Fairfax: What to Know First
CleanRun Air Duct Cleaning Fairfax provides independent Abatement Technologies duct repair and sealing throughout Fairfax, typically completing scheduled jobs within one business day of your call. We deliver a written price before any panel comes off, and every job ends with a documented photo record of every duct run we touched. If you own an Abatement Technologies air filtration or HVAC accessory system and have noticed uneven temperatures, rising energy bills, or visible gaps at your plenum connections, we can inspect, quote, and repair under our 365-Day Done Right Promise. Call (571) 526-0015 to schedule. Estimates are free, and we publish our price ranges below so you know what to expect before we arrive.
How Abatement Technologies Products Fail - and How We Fix Them
- CAP600-series central air cleaners with degraded flex-duct connections. The CAP600 and CAP600-UV rely on 6-inch flex duct runs between the filtration cabinet and your main trunk. In Fairfax’s humid summers, the inner liner separates from the wire helix at the clamp points, creating leaks that bypass filtration entirely. We replace the compromised flex with UL-181 listed duct and secure with Panduit-style clamps, not zip ties, then seal the collar with mastic rated for the CAP600’s airflow velocity.
- HEPA-CARE HC500 units with collapsed return plenums. The HC500’s negative-pressure design pulls hard on the return side. In older Fairfax split-levels near the Mosaic District, we’ve found the original builder-grade plenum sags where it meets the air handler, splitting the mastic seal. Our crew photographs the sag, supports the plenum with 26-gauge saddle straps, and reseals with fiber-reinforced water-based mastic - the only type that won’t off-gas into the HEPA stream.
- Abatement Technologies PREDATOR 750 portable units with damaged collar adapters. These units see hard use in renovation scenarios around Fairfax. The 10-inch intake collar cracks at the flange bolt holes after repeated handling. We stock replacement collars and can fabricate a transition piece if your ductwork has been modified post-installation. The camera goes in first. Then we talk.
- BD2K bed bug heaters with heat-damaged flex duct. The BD2K pushes 180°F air through temporary duct runs. After multiple deployments, the inner liner delaminates and the insulation compresses. We replace with high-temp silicone-coated flex duct rated for continuous 200°F operation, then pressure-test to verify no leakage that would reduce treatment efficacy.
- Abatement Technologies Aire Guardian AG5000 negative air machines with worn gasket interfaces. The AG5000’s HEPA housing seals against the duct adapter with a foam gasket that hardens after 18-24 months in Fairfax’s variable climate. We source the correct density replacement gasket from our Guardsman inventory, verify the flange surface is flat, and torque to manufacturer spec so the negative-pressure seal holds under full load.
Our Abatement Technologies Duct Repair & Sealing Process

- 1
Inspection with photo documentation. We run a borescope through every accessible duct run, photographing connections, liner condition, and any debris accumulation. You see what we see before any price is discussed.
- 2
Written scope and price. Tomas Reyes or a senior technician delivers a written scope identifying every Abatement Technologies component involved, the repair method, and the fixed price. Haven Standard Clause 1: no work starts without a signed written price.
- 3
Parts verification. We confirm whether OEM Abatement Technologies collars, gaskets, or adapters are available, or whether a quality aftermarket equivalent meets the application. We document the choice in writing.
- 4
Repair and seal. Our crew executes the repair - flex replacement, plenum rebuild, mastic application, or collar fabrication - using tools from our Rotobrush, Nikro, and Guardsman inventory as the job demands.
- 5
Pressure test and photo record. We pressurize the system and verify sealed joints with a smoke pencil or digital manometer. Then we photograph the completed work and deliver the full record to you.
- 6
Written guarantee activation. Your 365-Day Done Right Promise is dated and signed before we leave. If the seal fails or the repair doesn’t hold, we return and make it right.
Before
AfterWhat Abatement Technologies Duct Repair & Sealing Costs in Fairfax
| Repair Type | Typical Range | What Affects Price |
|---|---|---|
| Flex duct replacement (single run, CAP600 or similar) | $340-$580 | Length of run, attic vs. crawlspace access, whether the collar flange is intact |
| Return plenum reseal and support (HC500 systems) | $520-$890 | Plenum size, extent of liner deterioration, need for saddle strap fabrication |
| Collar adapter replacement (PREDATOR or AG5000) | $180-$340 | OEM vs. aftermarket part, custom transition fabrication |
| Full duct sealing with mastic (whole system) | $1,400-$2,200 | System tonnage, number of branches, accessibility of trunk lines |
| High-temp flex replacement (BD2K and similar) | $420-$680 | Temperature rating required, length, termination hardware |
These are whole-system prices, not per-vent teaser rates. The price we write is the price you pay. Call (571) 526-0015 for an exact quote on your Abatement Technologies system - estimates are free, and we provide a Free Second Opinion on any competitor’s written estimate.
Why Fairfax Homeowners Call CleanRun Air Duct Cleaning Fairfax for Abatement Technologies Work

We’ve worked on Abatement Technologies equipment in Fairfax since 2013, and we’ve learned that filtration systems fail at the duct connections first - not the HEPA media, not the UV lamps. Our technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews, and they carry the tools to service Lennox, Trane, and Carrier systems too, so we’re not guessing when your Abatement Technologies unit ties into a mixed-manufacturer setup. Every job produces a Documented Photo Record, every price is written before work starts, and the 365-Day Done Right Promise is backed in writing, not just stated in a tagline. We’re independently owned and operated - not a franchise, not affiliated with Abatement Technologies - and we’ve served more than 52,000 homes on those terms.
FAQs
No, if the repair is performed correctly and documented. Abatement Technologies warranties cover defects in materials and workmanship from the factory; they do not cover field modifications or damage from improper installation. We use manufacturer-specified materials and document every step, so if a warranty claim arises, you have a clear record that our work did not cause the failure. Call (571) 526-0015 if you need help navigating a warranty situation.
Replace when the flex duct liner is delaminated more than 6 inches from the collar, when the wire helix is exposed and corroded, or when repeated repairs have degraded the connection point. Repair when the damage is localized to the seal or clamp. We show you the camera footage and give you both options in writing. Call (571) 526-0015 for an inspection.
We stock common Abatement Technologies collars, gaskets, and adapters, and we source quality aftermarket equivalents when OEM lead times exceed your needs or when the aftermarket part meets the application with better availability. We document which route we take and why, in writing, before work starts. Call (571) 526-0015 to confirm part availability for your specific model.
Most single-component repairs - a CAP600 flex run, a PREDATOR collar, an AG5000 gasket - take 2 to 4 hours on site. Whole-system sealing on larger HC500 or multi-unit setups can run a full day. We give you a time estimate with the written price, not after we’ve started. Call (571) 526-0015 to schedule.
You receive a Documented Photo Record of every duct run we accessed, before and after, as a standard deliverable on every job. We also pressure-test sealed systems and note the results on your invoice. If you don’t see the difference between the before and after photos, we haven’t done our job. Call (571) 526-0015 and we’ll show you what documentation looks like before you commit.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning Fairfax at CleanRun Air Duct Cleaning Fairfax, serving Fairfax and nearby areas.




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