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-$680 for most residential systems, with flex duct replacement or full resealing jobs reaching the higher end when attic access is limited. We’re the team that actually opens the panels and shows you what’s broken before quoting a fixed price. Our crews serve Grapevine from our Dallas-Fort Worth office, and we’ve worked in homes from the historic Main Street district to the subdivisions off SH-121 near Grapevine Mills. Call (940) 290-8552 and we’ll put a written estimate in your hand before any work starts.
Why CleanRun Air Duct Cleaning Frisco Is Grapevine’s Preferred Duct Repair & Sealing Company
We’ve been in enough Grapevine attics to know the difference between a duct that needs cleaning and one that needs rebuilding. Since 2013, we’ve documented every job with before-and-after photos of every duct run, and that record now spans more than 52,000 homes across North Texas. Grapevine customers specifically mention our photo documentation in reviews, they check it against what other companies claimed to do.
Our technicians are background-checked, uniformed, and identified by name before arrival, Haven Standard Clause 3: Verified Crews. Scheduling and dispatch run from our Dallas-Fort Worth office, but the crew that reaches your Grapevine home knows the local housing stock, the clay-soil foundation issues, and the airport-corridor particulate load that shapes what we find inside these systems.
Every job carries our 365-Day Done Right Promise in writing, not as a verbal assurance. If the work isn’t right, we make it right. We also offer a Free Second Opinion on any written estimate from a competitor, bring their quote and we’ll put our number next to it, line by line.
Our Duct Repair & Sealing Services in Grapevine
Duct Sealing
Most Grapevine homes built between 1985 and 2005 have duct board or early flex-duct systems that have thermally cycled for 20-35 years. The joints gap. The mastic dries and flakes. We seal with fresh mastic sealant and mechanical fasteners, then verify with a static pressure test at the air handler. A typical duct sealing job in Grapevine runs $280-$450 for a single system, depending on how many joints need attention and whether we need to pull insulation to access them.
Flex Duct Repair
Flex duct gets crushed in attics, chewed by rodents, or simply collapses where it was poorly supported during original construction. In the Grapevine Mills corridor and neighborhoods off Mustang Drive, we regularly find 1990s flex runs that have separated entirely from their collars, the system is pulling 130°F attic air for half the year. We replace with Guardsman flex duct, properly supported and sealed, and we photograph every connection before closing the attic. Flex duct repair in Grapevine typically ranges from $180 per run to $520 for multiple runs in a single system.
Metal Duct Repair
The historic Main Street district and some commercial buildings along Highway 114 still run galvanized metal ductwork from the 1950s-1970s. These systems corrode at the seams, and original asbestos-wrap insulation often conceals the damage. We repair metal runs with proper sheet-metal patching and sealant, and we coordinate with licensed abatement contractors when old insulation needs safe removal. Metal duct repair in Grapevine starts around $340 and can exceed $800 for extensive commercial systems.
Duct Insulation & Mastic Sealant
Uninsulated or poorly insulated ducts in Grapevine attics lose 15-25% of conditioned air before it reaches the register. We apply mastic sealant first, mechanical bond, no tape alone, then install proper insulation where the original has degraded. This matters especially in Grapevine’s six-month cooling season, when attic temperatures exceed 130°F and every thermal leak costs real money on the electric bill. Full resealing plus insulation runs $450-$680 for most residential systems.
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
We stock parts and materials from Honeywell, Aprilaire, and Guardsman for Grapevine jobs, which means most repairs don’t wait on a parts run to Dallas. Our equipment roster also includes Rotobrush, Nikro, and Abatement Technologies for the cleaning and extraction work that often precedes repair. You can look up every brand we name, we don’t use tools you can’t verify.
Common Duct Repair & Sealing Problems We See in Grapevine Homes
- Original duct board delaminating at the plenum. In 1980s-2000s Grapevine subdivisions, the fiberglass duct board at the air handler connection breaks down after decades of thermal cycling. The surface turns fuzzy, the resin binder fails, and the joint opens. Homeowners feel weak airflow and assume the blower motor is failing, it’s often a 2-inch gap at the plenum that we can show you on camera.
- Clay-soil foundation movement gapping duct connections. North Texas clay expands and contracts with moisture, and slab-on-grade homes in Grapevine shift slightly year after year. That movement transmits to duct runs, especially where flex duct connects to rigid trunk lines. The gap widens slowly, sometimes over a decade, until the system is pulling 30% unconditioned attic air.
- Airport-corridor soot masking as household dust. Homes near SH-121 and Grapevine Mills accumulate a greasy, carbon-tinged film inside ducts that looks like heavy dust but wipes off black and slightly oily. This particulate load is genuinely higher than what we see in Southlake or Flower Mound, and it can conceal joint failures underneath until a technician runs a camera and pressure test.
- Six-month cooling season overworking undersized or disconnected runs. Grapevine’s summers run May through October with sustained 95-100°F days. When a duct run is partially disconnected or crushed, the blower motor compensates by running longer and harder. The homeowner sees high electric bills and assumes the AC unit is failing, the real problem is a $340 flex duct repair in the attic.
Pricing for Duct Repair & Sealing in Grapevine, TX
We publish ranges because Haven Standard Clause 1 requires a written price before any work starts, and that price should not be a surprise. Here’s what duct repair and sealing costs in Grapevine’s market:
- Duct sealing (mastic, joints, collars): $280-$450
- Single flex duct run replacement: $180-$260
- Multiple flex duct runs: $380-$520
- Metal duct repair/patching: $340-$680
- Full system resealing with insulation: $450-$680
What moves you within these ranges: attic access difficulty, number of joints or runs involved, and whether we need to remove degraded insulation to reach the ductwork. Every estimate is free, every price is written and signed before we touch a panel, and every job includes our Documented Photo Record of every duct run. Call (940) 290-8552 for an exact quote on your system.
We Also Serve Cities Near Grapevine
Our crews work throughout the northern Dallas-Fort Worth corridor. We regularly handle Duct Repair & Sealing in Grapevine and surrounding areas including Coppell, Flower Mound, Lewisville, and Carrollton. Scheduling is coordinated from our Dallas-Fort Worth office, with local dispatch to each community.
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
The camera tells the story. We run a borescope through every duct run and photograph the interior. If the duct board surface is delaminating, if the plenum connection shows gaps or fuzzy fiber exposure, or if the mastic sealant has dried and flaked away, that’s repair work, not cleaning. Cleaning a structurally failing duct board system just blows debris through the gaps. We’ll show you the photos and give you a written price for either cleaning or repair, your choice. Call (940) 290-8552 to schedule the inspection.
Yes, measurably. Homes in the SH-121 and Grapevine Mills corridors pull in jet-exhaust particulates, fine carbon soot, and combustion byproducts at rates we don’t see in Southlake or Flower Mound. The debris is often greasy to the touch, not dry household dust. This accumulation can also mask joint failures, the black film makes it hard to see gaps until a technician runs a camera and pressure test. Our Duct Repair & Sealing crews are trained to distinguish airport-corridor soot from standard dust load and to identify the mechanical problems underneath.
It can gap them, slowly and repeatedly. North Texas clay swells when wet and shrinks when dry, and that cycle moves slab foundations slightly year after year. The stress transmits to duct runs, especially where flex duct meets rigid trunk lines or where duct board connects to the plenum. We’ve opened attics in Grapevine neighborhoods near Dove Road and found 2-inch separations that developed over a decade of clay movement. The fix is mechanical reconnection with mastic sealant, not just pushing the pieces back together. We verify with a static pressure test before we leave.
First, we inspect every joint and connection with a camera, because thermal cycling that long degrades mastic and loosens mechanical fasteners. Then we remove degraded sealant, clean the mating surfaces, and apply fresh mastic sealant with proper mechanical support. We replace any crushed or separated flex runs, reinsulate where original insulation has fallen or degraded, and run a static pressure test at the air handler to confirm the system is pulling conditioned air, not attic air. The whole process for a typical Grapevine home takes 3-5 hours, and we photograph every run before and after.
We do. The historic Main Street district and some commercial buildings along Highway 114 have galvanized metal duct runs from the 1950s-1970s that corrode at seams and often carry original asbestos-wrap insulation. We repair the metal with proper patching and sealant, and we coordinate with licensed abatement contractors when insulation needs safe removal per Texas regulations. These jobs require more planning than standard flex duct work, and we price them after a site inspection. Call (940) 290-8552 to schedule a walk-through.
Ready to see what’s actually inside your ducts? Call (940) 290-8552 for a free estimate. We’ll put a written price in your hand before any work starts, back it with our 365-Day Done Right Promise, and leave you with a Documented Photo Record of every duct run we touched.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Grapevine and the Dallas-Fort Worth metroplex since 2013.