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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Before
AfterAbatement Technologies Duct Repair & Sealing in Leesburg: What to Know First
We provide independent Abatement Technologies duct repair and sealing in Leesburg, with most jobs scheduled within a few business days and completed in a single visit. Every repair starts with a written price agreed before any work begins, backed by our 365-Day Done Right Promise. The camera goes in before the quote comes out.
This page is for homeowners in Leesburg, Lansdowne, and the surrounding Loudoun County area who have an Abatement Technologies air filtration or pressure differential system connected to ductwork that is leaking, sagging, or pulling away at the seams. If your HEPA filtration unit or portable containment system is working harder than it should because conditioned air is escaping into the attic or crawl space, we can show you exactly where and fix it under a written scope. Call (571) 487-7204 for a free estimate.
How Abatement Technologies Products Fail - and How We Fix Them
- PREDATOR 750 Series: Collapsed flex duct at the unit connection. The 750’s high static pressure, when paired with undersized flex duct in older Leesburg townhomes, pulls the inner liner away from the collar. We find this most often in 2018-2021 builds near Village Walk. Our fix: cut back to sound duct, install a metal sleeve with mechanical fastening, then seal with mastic rated for the pressure class. OEM collar kits are available, but a fabricated galvanized sleeve with proper support spacing often outlasts the original.
- PREDATOR 800 Series: Leaky plenum seams causing pressure drop. The 800’s larger blower draws more air, and if the supply plenum was assembled with tape alone, the seams open within five to seven years. We see this in Leesburg homes where the original installer used foil tape on the plenum rather than mastic. Our fix: disassemble, reseal with UL 181B-FX listed mastic, and add drive cleats at stress points. The unit warranty stays intact because we do not modify the filtration cabinet itself.
- CAP600 / CAP1200 Series: Deteriorated duct liner at the first elbow. These ceiling-mounted negative air machines often connect to flexible duct with internal fiberglass liner. In Leesburg’s humid summers, that liner delaminates and sheds particles into the airstream. Our fix: replace the flex run with UL 181 listed duct of the correct pressure rating, or if the run is short enough, convert to hard pipe with a sealed access panel. We photograph the delamination before touching anything.
- ABATEMENT HEPA-AIRE: Sagging flex duct from inadequate support. The HEPA-AIRE’s weight and vibration stress the flex duct if supports exceed four-foot spacing. In crawl spaces off Catoctin Circle, we regularly find ducts resting on insulation or duct lying on damp ground. Our fix: reinstall with proper support straps, slope for drainage if condensate is present, and seal all joints with mastic. We mark support locations on the photo record so you can verify the work.
- Portable Containment Units: Cross-contamination from reversed duct connections. When Abatement Technologies portable units are moved between jobs or seasons, the inlet and outlet get swapped. The unit runs, but it pressurizes what should be a negative-pressure zone. Our fix: verify airflow direction with a smoke pencil, reconnect per the manufacturer’s arrow marking, and seal the flex connections with clamped collars and mastic. We document the correct orientation on your job record.
Our Abatement Technologies Duct Repair & Sealing Process
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Inspection with camera and pressure test. We feed a borescope into every accessible duct run and note pressure readings at the unit and at the farthest register. You see the footage before we discuss scope.
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Written price delivered. Haven Standard Clause 1: one flat price for the complete repair, agreed in writing before any panel comes off. No per-foot add-ons, no “we found more” surprises.
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Parts decision: OEM or verified aftermarket. For Abatement Technologies connections, we source OEM collars and gaskets when available. When lead times stretch past two weeks, we fabricate equivalent fittings from galvanized steel or specify a cross-referenced aftermarket part and note the substitution on your written scope.
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Repair and seal. We cut out damaged sections, install new duct or fittings, support per SMACNA standards, and seal every joint with mastic. Metal-to-metal connections get screws plus mastic, not tape alone.
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Post-repair verification. We run the unit and recheck static pressure, temperature at the farthest register, and visual seal integrity with the camera. The after photos go into your Documented Photo Record.
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Written guarantee and cleanup. The 365-Day Done Right Promise goes on your invoice. We leave the work area as we found it, with all debris removed.
Before
AfterWhat Abatement Technologies Duct Repair & Sealing Costs in Leesburg
| Repair Type | Typical Range | What Moves the Price |
|---|---|---|
| Single flex duct section replacement (CAP600/1200 connection) | $340 - $520 | Length of run, attic vs. crawl space access, whether the liner has delaminated into the unit |
| Plenum reseal (PREDATOR 800 supply connection) | $280 - $440 | Plenum size, number of seams, whether the original tape has hardened and requires mechanical removal |
| Full duct support and rehang (HEPA-AIRE or portable unit) | $420 - $680 | Number of supports, crawl space height, presence of moisture damage requiring replacement |
| Metal sleeve fabrication with mastic seal (PREDATOR 750 collapse) | $380 - $560 | Diameter of duct, need for custom transition fitting, accessibility |
These are whole-system prices, not per-vent teaser rates. The price we write is the price you pay. Call (571) 487-7204 for an exact quote - estimates are free, and we will put our number next to any competitor’s written estimate under our Free Second Opinion policy.
Why Leesburg Homeowners Call CleanRun Air Duct Cleaning Leesburg for Abatement Technologies Work
We are an independent Abatement Technologies service provider, not a factory-authorized dealer, which means we fix the ductwork without pushing a full system replacement. Our technicians carry Rotobrush, Nikro, and Abatement Technologies equipment on every truck, and they also work on Lennox, Trane, and Carrier systems - so if your duct issue connects to a mixed-brand setup, we do not hand you off.
Haven Standard Clause 3: Verified Crews. Every technician is background-checked, uniformed, and identified by name before arrival. The 365-Day Done Right Promise is backed in writing on every job, not just stated in marketing copy. Since 2013, we have served 52,000+ homes with a written price before work started and a documented photo record when the crew left. Tomas Reyes, our owner, grew up in Queens and learned the trade at Triangle Tech before spending two decades in HVAC and duct systems up and down the East Coast. He and the crew have become the ones homeowners near Ida Lee Park call when the return grilles have not been pulled since the house was built.
FAQs
No, if the repair is confined to the ductwork and does not modify the filtration cabinet or blower assembly. We document every cut, seal, and connection so the unit’s original warranty terms remain intact. Call (571) 487-7204 if you would like us to review your warranty language before scheduling.
OEM collars, gaskets, and connection kits typically arrive in three to five business days. When lead times stretch longer, we fabricate equivalent fittings from galvanized steel or source verified aftermarket parts and note the substitution in writing. We do not leave you waiting on a backordered part when a proper field-fabricated solution exists.
Repair the duct if the unit itself is meeting filtration specs and the failure is isolated to the distribution path. We replace duct sections, plenums, and supports; we do not sell Abatement Technologies units. If the blower motor or HEPA filter housing is failing, we will tell you that during the inspection and recommend contacting an Abatement Technologies dealer. Call (571) 487-7204 for an honest assessment.
We deliver a Documented Photo Record of every duct run, before and after, as a standard deliverable on every visit. You will see the original leak, the opened joint, the mastic application, and the sealed result. We also record post-repair static pressure and temperature at the farthest register. If the numbers do not improve, we do not close the job.
Every three to five years for systems in conditioned space, every two to three years for units in attics or crawl spaces due to our temperature swings and summer humidity. Leesburg’s freeze-thaw cycles stress supports and seals more than coastal climates. If your unit runs year-round for renovation or remediation work, annual inspection is prudent. Call (571) 487-7204 to schedule.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning Leesburg at CleanRun Air Duct Cleaning Leesburg, serving Leesburg and nearby areas.