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.
Fast, Reliable Duct Repair & Sealing Across Grapevine
Duct repair and sealing in Grapevine typically runs $280-$650 per system depending on access, material type, and whether the home sits in the airport-adjacent corridor where soot infiltration accelerates wear. Most jobs are scheduled within two to three business days, with written pricing delivered before any panel comes off. Call (940) 240-8552 for a free estimate with a guaranteed written price.
We’re familiar with Grapevine’s housing stock from Silverlake to Starwood to the historic district near Main Street. Crews dispatch from our Dallas-Fort Worth office and carry the full equipment roster - Rotobrush, Nikro, and Abatement Technologies units - so we’re not making a second trip for tooling. That matters when you’re staring at a disconnected flex-duct run in a 100-degree attic and the cooling season runs May through September.
Why CleanRun Air Duct Cleaning Lewisville Is Grapevine’s Preferred Duct Repair & Sealing Company
Grapevine homeowners research before they call. We built our process around that.
Since 2013, we’ve served 52,000+ homes with one rule: written price before work starts, every time, no exceptions. Haven Standard Clause 1. Our Duct Repair & Sealing team photographs every duct run before and after, so you see what was done in spaces you can’t enter yourself. The 365-Day Done Right Promise is backed in writing on every job, not buried in a policy manual.
Technicians are background-checked, uniformed, and identified by name before arrival - Haven Standard Clause 3: Verified Crews. Tomas Reyes, who leads CleanRun, established this protocol in 2013 and has maintained it across every market we serve. Reviews from Grapevine customers specifically mention the photo documentation and the flat per-system pricing as the reason they called back for additional work.
Response time to Grapevine averages two to three business days for standard scheduling. We don’t manufacture urgency. Duct repair is scheduled work, and the crew that shows up carries the equipment to complete the job that day.
Our Duct Repair & Sealing Services in Grapevine

Duct Sealing
Leaky ducts in Grapevine pull unfiltered attic air and, in the southern corridors near DFW International Airport, fine jet-exhaust particulates straight into your living space. We seal joints, plenum connections, and register boots with mastic sealant and reinforced mesh, then pressure-test the system to verify the seal holds. A typical duct sealing job in Grapevine runs $280-$450 per system for accessible attic work.

Flex Duct Repair
The 1980s-2000s flex-duct systems common in SouthLake Ranch, Starwood, and Silverlake sag between joists, disconnect at takeoffs, and tear at elbows. We replace failed sections with new insulated flex, support it properly to prevent future sagging, and seal every joint with mastic. Flex duct repair in Grapevine typically costs $180-$340 per run depending on length and attic access.

Metal Duct Repair
The smaller cluster of pre-1960s homes near Grapevine’s historic Main Street district sometimes still has galvanized or exposed sheet-metal trunk lines. These require different protocols - we use specialized sealants rated for metal expansion and contraction, and we document corrosion or pinhole leaks with camera inspection. Metal duct repair in Grapevine runs $320-$650 per system due to the specialized materials and labor involved.

Duct Insulation
Grapevine Lake’s localized humidity on the city’s north side promotes condensation inside under-insulated ductwork, especially in flex runs. We install closed-cell insulation or replace degraded jacketing to stop sweat buildup that leads to mold colonization. Duct insulation work in Grapevine typically ranges $240-$480 per system.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Grapevine
Our crews carry professional-grade equipment from trade-recognized brands: Rotobrush for mechanical agitation, Nikro for negative-pressure extraction, and Abatement Technologies for HEPA containment. We stock Guardsman mesh and mastic compounds for sealing work, so Grapevine jobs aren’t delayed waiting on parts. You can verify each manufacturer’s specifications independently before we start. That’s Haven Standard Clause 1 in practice - nothing hidden, everything named.
Common Duct Repair & Sealing Problems We See in Grapevine Homes

- Original flex-duct failure in SouthLake Ranch and Starwood. The 1980s-2000s suburban boom produced thousands of homes with flex-duct that now sags between attic joists and disconnects at takeoffs. We regularly find 2-3 separated joints in a single attic, each one pulling unconditioned air and airport-corridor particulates directly into the return side.
- Mold colonization from Grapevine Lake humidity. North-side neighborhoods near the lake experience localized humidity 10-15% higher than western Tarrant County. That moisture condenses inside flex-duct jackets where insulation has degraded, creating the conditions for mold growth technicians in drier areas simply don’t encounter as often.
- Soot-streaked return systems near the north runway complex. Homes and hotels in south Grapevine under active flight paths pull elevated fine carbon particulates through return-air grilles. Standard fiberglass filters don’t catch it. Without mastic-sealed joints and upgraded filtration, that soot load recirculates through every supply register in the house.
- Multi-system homes with undocumented prior work. Silverlake and Starwood in particular have large homes with two or three HVAC systems installed by different contractors over decades. We find incompatible sealing materials, unsupported flex runs, and plenum connections that were never properly sealed - each system requiring separate documentation so the homeowner knows what was actually done.
Pricing for Duct Repair & Sealing in Grapevine, TX
| Service | Typical Range in Grapevine |
|---|---|
| Duct sealing (per system, accessible attic) | $280-$450 |
| Flex duct repair (per run) | $180-$340 |
| Metal duct repair (per system) | $320-$650 |
| Duct insulation (per system) | $240-$480 |
| Mastic sealant application (supplemental) | $85-$150 |
These are whole-system prices, not per-vent teaser rates. What drives the number: attic access difficulty, number of systems in the home, material type (flex vs. metal), and whether we find secondary damage from soot infiltration or moisture degradation that requires additional remediation. Every price is written and agreed before work starts - no exceptions. Free estimates. Call (940) 240-8552.
We Also Serve Cities Near Grapevine

Our crews work throughout the northern Metroplex. We regularly schedule Duct Repair & Sealing in Grapevine alongside jobs in Southlake, Flower Mound, Lewisville, and North Richland Hills. Same equipment roster, same written pricing, same photo documentation standard - regardless of zip code.
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

You’re likely in the airport-adjacent corridor. Grapevine’s position directly bordering DFW International Airport means homes near the north runway complex pull fine jet-exhaust carbon through return-air grilles at rates inland neighbors like Southlake never experience. Standard fiberglass filters don’t capture these ultrafine particulates. The blackening returns within weeks. We address it with mastic-sealed duct joints to stop attic bypass, upgraded MERV filtration sized to your system, and camera documentation of the return plenum condition. Call (940) 240-8552 for an inspection and written estimate.
Yes, because each system is a separate mechanical unit with separate duct runs, plenums, and failure modes. In Silverlake, we opened the air handler on a 1990s two-story with three systems and found original flex-duct runs sagging between joists, two disconnected joints in the attic, and a soot-streaked return filter housing consistent with the airport-adjacent corridor. We rebuilt the failed joints with mastic and Guardsman mesh, re-sealed the plenum, ran camera inspection on each trunk, and tagged each system separately so the homeowner could see per-system documentation for work they couldn’t see themselves. Per-system pricing prevents the bait-and-switch of a low whole-house quote that becomes triple the price once the van arrives. Written price per system, agreed before we start.
Every CleanRun job concludes with a Documented Photo Record: before-and-after images of every duct run, the written scope of work performed, and the final pressure-test or camera-inspection results. This is standard, not an upgrade. For multi-system homes, each system is tagged and documented separately. You receive the full record as a deliverable, not a verbal summary. Haven Standard Clause 1 requires written pricing before work starts; our documentation protocol requires written and photographic evidence of what was done. If you don’t receive it, the job isn’t complete.
Yes, particularly in north Grapevine neighborhoods near the lake where localized humidity runs higher than the regional average. That moisture condenses inside flex-duct jackets where insulation has compressed or torn, creating surface conditions for mold colonization on the duct interior. We find it more frequently in Grapevine than in drier, more elevated western Tarrant County neighborhoods. The repair protocol includes replacing degraded insulation, sealing all joints with mastic to prevent warm attic air from contacting cool duct surfaces, and camera verification that the interior is clean before we close. Call (940) 240-8552 for a free inspection.
Negative-pressure containment prevents debris disturbed during repair work from migrating into your living space. NADCA Standard 2021 requires it for any work that opens the duct envelope, including joint repair, plenum resealing, and flex-duct replacement. We use Nikro negative-pressure extractors and Abatement Technologies HEPA containment on every repair job, not just cleanings. The standard also governs post-repair verification - we pressure-test or camera-inspect to confirm the seal integrity before we leave. A repair without containment and verification is just a guess you can’t see.
Ready for a written estimate with a guaranteed flat price per system? Call (940) 240-8552 or schedule online. Every estimate is free, every price is written before work starts, and every job is backed by the 365-Day Done Right Promise. Bring a competitor’s written quote - we’ll put our number next to it under our Free Second Opinion policy.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Grapevine since 2013.




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