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
AfterFast, Reliable Duct Repair & Sealing Across Tysons Corner
Most duct repair in Tysons Corner runs $280-$620 for sealing work and $340-$890 for flex or metal duct repair, with written pricing delivered before any panel comes off. We’re the Duct Repair & Sealing team that serves Tysons Corner from our Washington, DC dispatch office, and we know the difference between a 1980s office tower on Route 7 with crumbling fiberglass liner and a 2019 condo stack on Route 123 fighting construction dust from the tower next door. Call (571) 487-7204 for a written estimate - no “call for pricing,” just a flat number you can compare.
Why CleanRun Air Duct Cleaning Leesburg Is Tysons Corner’s Preferred Duct Repair & Sealing Company
We’ve worked in Tysons Corner since 2013, and the photo records from those jobs tell the story better than any marketing claim. One building manager on Westpark Drive has us back every 18 months because our first visit documented 2.3 inches of degraded fiberglass accumulation in the main return - proof the previous contractor’s “cleaning” had never touched it.
Our crews carry lift certifications and understand Tysons Corner’s loading-dock scheduling windows, which means we don’t waste your building manager’s time figuring out freight elevator access. Haven Standard Clause 3 - Verified Crews - means every technician is background-checked, uniformed, and identified by name before arrival.
We publish our license number on every page. We’re insured and bonded. And every job ends with a Documented Photo Record of every duct run, delivered as a standard deliverable, not an upsell.
The 365-Day Done Right Promise applies here exactly as it does everywhere we work: if the repair or seal fails, we make it right - in writing, not subject to manager mood.
Our Duct Repair & Sealing Services in Tysons Corner
Duct Sealing
Sealing in Tysons Corner means addressing a specific problem: mastic and tape joints cracking under continuous vibration from adjacent construction along Route 7 and Route 123. We inspect with camera, identify every leak point, and re-seal with mastic rated for the pressure cycling these high-rise systems endure. A typical duct sealing job in Tysons Corner runs $280-$480 for residential-scale systems and $520-$890 for commercial air handlers serving multiple floors.
Flex Duct Repair
Flex duct in Tysons Corner’s newer condos gets pinched behind kitchen soffits, compressed by maintenance access panels, or torn at connection points during adjacent-unit renovation. We don’t patch with tape and hope. We replace damaged sections with properly sized flex, support it to prevent sagging, and seal with mastic at every collar. Field repair in Tysons high-rises typically runs $340-$620 depending on lift access and run length.
Metal Duct Repair
Older Tysons office buildings on Westpark Drive and Greensboro Drive still run galvanized steel ductwork from the 1970s and 80s. We’ve found rust-through at condensate collection points, separated drive cleats from decades of thermal cycling, and access doors that haven’t been opened since the Reagan administration. Metal repair starts at $420 for localized patch and seal work, ranging to $780 for section replacement with proper transitions.
Duct Insulation & Mastic Sealant
Northern Virginia’s July humidity - regularly above 70% RH - turns compromised duct insulation into a mold substrate. In Tysons Corner’s older Class B buildings, we strip degraded fiberglass liner, apply closed-cell insulation where appropriate, and seal every joint with mastic before the system goes back online. Insulation replacement with full mastic sealing runs $580-$1,040 for typical commercial zones.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Tysons Corner
Our equipment roster includes Rotobrush agitation systems, Nikro HEPA extractors, and Honeywell and Aprilaire air handling components - brands you can look up yourself before agreeing to any scope. We stock common collar sizes, flex diameters, and mastic compounds for Tysons Corner buildings, which means most repairs don’t wait on parts. When a Route 123 condo association called us about a failed fan-coil connection on a Saturday, we had the 8-inch flex and compression collars on the truck. No emergency upcharge. Just the written price we’d already agreed to.
Common Duct Repair & Sealing Problems We See in Tysons Corner
- Construction vibration cracking mastic seals. Buildings along Route 7 and Route 123 adjacent to active tower sites experience continuous low-frequency vibration. We’ve opened duct panels to find mastic that looked intact from the outside but had separated 3/8 inch from the metal, pulling unfiltered construction dust straight into occupied spaces.
- Condensation breeding mold in aging insulation. Tysons Corner’s older office stock - those 1970s and 80s Class B buildings - uses fiberglass duct liner with vapor barriers that have long since failed. July humidity hits 70%+, moisture condenses on cool supply surfaces, and the liner becomes a mold matrix. The musty smell tenants complain about isn’t “old building” - it’s biological growth documented on our cameras.
- Fiberglass liner degradation circulating fragments. This pattern is far more prevalent in Tysons than in residential-dominant McLean or Vienna just miles away. The 1970s-era open-plan offices installed fiberglass liner for acoustic dampening. Forty years later, it’s crumbling into respirable fragments that bypass standard filters and deposit on desks and equipment.
- Shared dryer vent stacks with no individual cleanout access. Tysons Corner’s post-2014 condos often route dryer exhaust through a common stack with no per-unit maintenance ports. When a lower-unit blockage backs up lint into the shared plenum, every unit above smells it. We map these stacks with camera, install access panels where code allows, and restore proper draft.
Pricing for Duct Repair & Sealing in Tysons Corner, VA
We don’t do per-vent teaser pricing or $79 coupons that balloon once the truck arrives. Every Tysons Corner job starts with a written flat price before work begins - Haven Standard Clause 1, no exceptions.
| Service | Tysons Corner Price Range |
|---|---|
| Duct sealing (mastic, tape, collar joints) | $280-$480 residential / $520-$890 commercial |
| Flex duct repair/replacement | $340-$620 |
| Metal duct patch and seal | $420-$780 |
| Duct insulation replacement with mastic | $580-$1,040 |
| Dryer vent stack cleaning (shared condo systems) | $180-$340 per access point |
What moves a job toward the higher end: lift rental for high-rise access, after-hours scheduling to accommodate building management, extensive fiberglass liner removal requiring HEPA containment, or multiple compromised runs in a single system. What doesn’t: we don’t charge extra for the photo record, the written scope, or the 365-Day Done Right Promise. Those are standard.
Bring us a competitor’s written estimate. Under our Free Second Opinion, we’ll put our number next to it - no charge, no obligation.
We Also Serve Cities Near Tysons Corner
Our crews work throughout Northern Virginia, with regular calls from Tysons Corner and neighboring Leesburg, Ashburn, Sterling, and Herndon. Each market gets the same written-price-first protocol and documented photo record, though the building stock differs - Tysons Corner’s high-rise concentration creates repair patterns we simply don’t see in those more residential markets.
Serving Tysons Corner, VA - Our Local Coverage Area
We’re based in the Tysons Corner area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Duct Repair & Sealing in Tysons Corner
Your building is likely pulling drywall dust, concrete particulates, and insulation fibers from adjacent active construction sites through compromised duct seals - a loading pattern unique to Tysons Corner’s ongoing high-rise boom along Route 7 and Route 123. We got a call from a fan-coil condo unit on Towers Crescent Drive where the resident complained of gritty dust settling on countertops within hours of cleaning. Our tech ran camera inspection through the supply and return ducts and found flex duct runs pinched behind a newly installed kitchen soffit, with several mastic seals cracked open from the building’s construction vibration. We repaired the flex runs, re-sealed the joints with mastic, and set up HEPA filtration with negative pressure to capture the drywall dust load before it re-entered the occupied space. Call (571) 487-7204 and we’ll inspect with camera to find your entry points.
Yes - our crews carry lift certifications and coordinate with Tysons Corner building management for freight elevator scheduling, loading dock windows, and after-hours access protocols. We don’t arrive and hope. We call ahead, confirm access requirements, and build that coordination into the written scope. Most Tysons high-rises on International Drive or Westpark Drive have standard procedures we already know; for newer buildings, we contact management 48 hours ahead. If your building requires certificate of insurance naming the property, we deliver it before the appointment date.
Your building likely has the original fiberglass duct liner installed for acoustic control in open-plan offices, and after forty years of Northern Virginia humidity cycles, that liner has degraded into respirable fragments. This pattern is far more prevalent in Tysons Corner’s 1970s-80s Class B/C office stock than in residential-dominant neighborhoods like McLean or Vienna. The fragments circulate through supply and return ducts, bypass standard filters, and deposit on surfaces throughout the occupied space. Removal requires specialized containment and HEPA-filtered negative air during cleaning - not a shop vac and a prayer. We document the extent with camera before proposing scope.
Tysons Corner’s combination of continuous construction vibration and shared HVAC systems in high-density buildings means duct leaks don’t just waste energy - they pull unfiltered construction contaminants directly into occupied spaces. In a single-family home in Vienna, a leaky return might pull attic dust. In a Tysons Corner tower on Route 123, that same leak pulls concrete particulate from the tower being poured next door, distributes it through a shared air handler, and every unit on the line breathes it. Sealing isn’t an efficiency upgrade here. It’s contamination control.
Yes - shared dryer vent stacks in Tysons Corner’s post-2014 condos frequently lack per-unit cleanout access, which means lint accumulation in lower units backs up into the shared plenum and restricts draft for every unit above. We map these stacks with camera inspection, install code-compliant access panels where structure allows, and clean with rotary brush and negative-pressure extraction. The work runs $180-$340 per access point depending on stack height and configuration. If your building’s stack has never been inspected, the camera will show what the residents have been smelling.
Ready for a written estimate? Call CleanRun at (571) 487-7204. We’ll schedule camera inspection, deliver a flat price before any work starts, and leave you with a Documented Photo Record of every duct run we touched. Haven Standard Clause 1: written price first, always.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Tysons Corner since 2013.