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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AfterFast, Reliable Duct Repair & Sealing Across Grapevine
Duct repair and sealing in Grapevine typically runs $280-$780 per system depending on access, material type, and whether insulation replacement is needed. Most homes in Grapevine’s 1980s-2000s build-out have two or three separate HVAC systems, so we quote per system with a written price before any panel comes off. Call (469) 405-6133 for a free estimate.
We serve Grapevine from our Dallas-Fort Worth office, and our crews know the city’s mechanical landscape well. The bulk of residential stock here dates to the DFW-area boom decades, meaning long flex runs, multiple zones, and ductwork that has logged thousands of near-continuous summer hours. Whether you’re off Texan Trail, near Grapevine Lake, or in the Historic Downtown district, we arrive with the same documentation protocol: photograph every run before we touch it, deliver a written scope with exact pricing, and photograph again before we leave.
Why CleanRun Air Duct Cleaning Dallas Is Grapevine’s Preferred Duct Repair & Sealing Company
CleanRun has held the same practice since 2013: every job gets a written price before work starts and a Documented Photo Record of every duct run when the crew leaves. No exceptions. In Grapevine, that matters more than in most suburbs because the work is largely invisible. You cannot see inside a sealed flex run behind drywall. The photo record is your evidence.
Our technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. Tomas Reyes, who leads CleanRun, has kept the 365-Day Done Right Promise in writing on every job since the company’s first year. If the repair fails, we make it right. Not as a favor. As a written guarantee.
We also offer a Free Second Opinion on any written estimate. Bring a competitor’s quote for Duct Repair & Sealing work anywhere in Grapevine, and we’ll put our number next to it in writing so you can compare scope, not just price.
Our Duct Repair & Sealing Services in Grapevine
Duct Sealing
Grapevine’s boom-era flex duct systems develop leaks at collars, plenum connections, and register boots after decades of thermal cycling. We seal with mastic sealant, not tape, because tape fails in attics that reach 140°F in July. A typical duct sealing job in Grapevine runs $280-$450 per system for accessible trunk-and-branch work. For homes with sealed soffits or spray-foam encapsulated attics common in newer construction near Lakeview Drive, access labor pushes the upper end.
Flex Duct Repair
Flex duct installed during Grapevine’s 1980s-2000s build-out is now 20-40 years old. The wire helix corrodes, the inner liner sags and traps debris, and the fiberglass insulation compresses or gets wet. We replace damaged sections with new insulated flex, secure with mechanical straps and mastic, and photograph the repair. Flex duct repair in Grapevine typically costs $180-$340 per run depending on length and attic access.
Metal Duct Repair
Older mixed-use buildings in Grapevine’s Historic Downtown and some custom homes from the 1970s use galvanized metal trunk lines. These corrode at seams, separate at drive cleats, and transmit noise. We repair with sheet-metal patches, seal with high-temperature mastic, and add acoustic liner where noise is an issue. Metal duct repair runs $320-$620 in Grapevine, higher when custom fabrication is needed.
Duct Insulation
Grapevine Lake’s humidity premium raises the dew point inside under-insulated flex runs. When cold supply air meets humid attic air, condensation forms at joints and feeds microbial growth. We re-insulate with R-6 or R-8 fiberglass wrap, sealed with vapor-barrier mastic, to break that cycle. Duct insulation replacement in Grapevine runs $240-$480 per run depending on diameter and length.
Air Leak Repair
Three-system Grapevine houses with long second-story runs often hide pressure imbalances. A leak in one zone can pull return air from a hot attic, wasting capacity and straining the compressor. We pressure-test the full supply-and-return path, locate leaks with smoke pencils and thermal imaging, and repair with documented before-and-after static pressure readings. Air leak repair in Grapevine starts at $260 per zone and ranges to $680 for whole-system diagnostics and sealing.
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.
BeforeAfterTrusted Brands We Service in Grapevine
Our equipment roster includes Nikro negative-pressure extractors, Honeywell media air cleaners, and Aprilaire whole-home dehumidifiers. We stock common flex diameters, mastic, and mechanical fasteners locally, so Grapevine repairs don’t wait on parts. For homes needing integrated humidity control, particularly those near Grapevine Lake where ambient moisture loads run high, we specify Aprilaire dehumidifiers sized to the conditioned volume. Every component is named on your written scope so you can verify specifications independently.
Common Duct Repair & Sealing Problems We See in Grapevine Homes
- Separated flex duct collars at air handler plenums. After thousands of summer runtime hours, the mechanical straps loosen and the collar pulls free. The system still runs, but it pumps conditioned air into the attic. We find this in roughly half of Grapevine homes built between 1985 and 2005.
- Soot-class particulate fouling under DFW flight corridors. Homes in Grapevine’s southern and eastern neighborhoods collect a fine, oily dark-gray film from ultrafine jet combustion particulates. Standard filter upgrades won’t stop it. Without addressing the envelope infiltration path, cleaned ducts re-foul rapidly.
- Condensation and microbial growth in under-insulated runs. Grapevine Lake’s localized humidity premium pushes dew points higher than in drier inland suburbs like Lewisville. When flex insulation compresses or tears, cold supply lines sweat at joints, and that moisture feeds growth that cleaning alone won’t stop.
- Pressure imbalances in multi-system houses. A repair that seals one zone without checking the whole supply-and-return path can simply displace the leak. We see this most often in two-story homes off Texan Trail and near Dove Road, where three separate systems serve different floors with long trunk lines.
Pricing for Duct Repair & Sealing in Grapevine, TX
| Service | Typical Range in Grapevine |
|---|---|
| Duct sealing (per system, accessible) | $280-$450 |
| Flex duct repair (per run) | $180-$340 |
| Metal duct repair | $320-$620 |
| Duct insulation replacement (per run) | $240-$480 |
| Air leak repair with pressure testing | $260-$680 |
| Whole-home multi-system diagnostic and seal | $740-$1,280 |
These are whole-system ranges, not per-vent teaser prices. Every quote is written and agreed before work starts under Haven Standard Clause 1. Factors that push Grapevine jobs toward the higher end: sealed attic access requiring drywall or soffit removal, spray-foam encapsulation that must be carved back, three-system homes needing zone-by-zone balancing, and repairs in Historic Downtown buildings with pre-1970s mechanical layouts. Call (469) 405-6133 for an exact quote. Estimates are free.
We Also Serve Cities Near Grapevine
Our crews work Grapevine regularly and also handle duct repair and sealing in Euless, Coppell, Lewisville, and Carrollton. The same written pricing, same documented photo record, same 365-Day Done Right Promise applies in every city we serve.
Serving Grapevine, TX - Our Local Coverage Area
We’re based in the Grapevine 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 Grapevine
Because each system has its own air handler, plenum, trunk line, and register set, and the condition varies independently. One system may need only collar sealing; another may have three sagged flex runs and failed insulation. Per-system pricing lets you repair what needs repair without subsidizing a blanket rate across units in different condition. Call (469) 405-6133 and we’ll scope each system separately with its own written price.
You should receive three deliverables: a written scope with line-item pricing agreed before work starts, a Documented Photo Record showing the interior of every duct run before and after, and a written 365-Day Done Right Promise. At CleanRun, these are standard on every job, not upgrades. The photo record is your proof that the work happened inside the parts you cannot access.
Yes. The ultrafine combustion particulates from jet exhaust infiltrate building envelopes and accumulate inside duct systems at concentrations measurably higher than in landlocked suburbs like Southlake or Keller. Combined with Grapevine Lake’s humidity, this creates a double burden: soot-class fouling that degrades seals and insulation, plus moisture that accelerates microbial growth. Homes in southern and eastern Grapevine neighborhoods typically need more frequent inspection and more robust sealing than comparable homes farther from the flight corridors.
Because cleaning removes growth but doesn’t fix the moisture source. In Grapevine, the most common source is condensation inside under-insulated flex runs, driven by Lake Grapevine’s humidity premium. When cold supply air meets humid attic air at a poorly insulated joint, the surface temperature drops below dew point and water forms. Sealing the leak without replacing insulation leaves the condensation problem intact. We address both: seal the air leak, then re-insulate to break the thermal bridge.
Yes, if the root cause is duct leakage rather than equipment undersizing. We were called to a two-story home off Texan Trail that had been running three separate systems since the 1990s boom, and the homeowner couldn’t tell why the upstairs zone never kept up. Our tech ran camera inspection through the long second-floor flex run, found a separated collar at the air handler plenum and two sagged sections shedding interior fiber, then sealed the joints with mastic and re-insulated the run. A follow-up blower-door check showed the static pressure drop had flattened and the upstairs zone finally matched its thermostat setpoint. Call (469) 405-6133 if your upstairs zone is struggling. We’ll diagnose whether it’s a duct problem or an equipment problem before quoting any work.
Ready to get your Grapevine ductwork sealed, repaired, and documented? Call CleanRun at (469) 405-6133 for a free estimate. We’ll deliver a written price before any work starts, photograph every run before and after, and back the repair with our 365-Day Done Right Promise in writing.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Grapevine and the Dallas-Fort Worth metro since 2013.