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, TX typically runs $280-$750 for most homes, with full flex-duct replacement in older systems reaching $1,200-$2,800. Our crews are dispatched from the Dallas-Fort Worth office and carry the equipment to diagnose, photograph, and seal ductwork on the same visit. Call (682) 297-4068 and we’ll put a written price in your hand before any panel comes off.
We’ve worked in Grapevine since 2013 - Timberline, Stone Bridge Estates, the historic cottages near Main Street, and the subdivisions tucked under DFW’s flight paths. The housing stock here is specific, and the problems we find inside the ductwork are specific too. Our Duct Repair & Sealing team doesn’t guess; we run a camera, show you what the camera saw, and quote the fix in writing.
Why CleanRun Air Duct Cleaning Irving Is Grapevine’s Preferred Duct Repair & Sealing Company
Grapevine homeowners research before they call. We built our process for exactly that customer. Every job starts with a written price - Haven Standard Clause 1 - and ends with a Documented Photo Record of every duct run, delivered as a standard deliverable, not an upsell.
We’ve served 52,000+ homes since 2013. Every one got a written price before work started. Every one got before-and-after photos. The 365-Day Done Right Promise is backed in writing on every job, not just stated in marketing copy. If the work isn’t right, we make it right.
Our technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. You’ll get the technician’s name before arrival. The equipment we bring - Rotobrush, Nikro, Abatement Technologies - is professional-grade, named so you can verify it independently.
We answer calls with a live person, 24/7. Scheduling is coordinated from our Dallas-Fort Worth office, and crews serve Grapevine locally. No phone trees. No “we’ll call you back tomorrow.”
Our Duct Repair & Sealing Services in Grapevine

Duct Sealing
Most Grapevine homes we enter leak 20-35% of conditioned air into the attic before it reaches the register. In Timberline and Stone Bridge Estates, the original flex duct from the 1980s and 1990s was joined with tape that has dried and failed. We seal with mastic compound and mechanical fasteners - the correct method for permanent closure - after source removal clears the debris that would otherwise prevent adhesion. A typical duct sealing job in Grapevine runs $280-$550 for a single-system home.

Flex Duct Repair
Flex duct doesn’t last forever. In Grapevine’s 1980s-to-early-2000s construction, we’re now seeing inner liners separated from outer jackets, crushed runs where someone stepped in the attic, and sagging sections that pool condensation. We repair where possible and replace where necessary, supporting new runs with proper straps and angle. Flex duct repair in Grapevine typically falls between $180-$420 per run, with full replacement at $85-$140 per linear foot installed.

Metal Duct Repair
The pre-WWII cottages near Main Street and some 1960s ranchers in Grapevine have galvanized steel ductwork that has rusted through at the seams or separated at the collars. We cut out damaged sections, fabricate replacements, and seal with high-temperature mastic. Metal repair is more labor-intensive - $340-$680 is typical for Grapevine homes with accessible attic runs.

Air Leak Repair
Disconnected collars, abandoned branch runs still tied to the plenum, and mismatched duct sizing from repeated HVAC retrofits - these are what we find in Grapevine’s older housing stock. Each leak drops static pressure and short-circuits airflow. We pressure-test the system, locate every breach with a smoke pencil or blower-door assist, and repair with documented before-and-after photos. Air leak repair in Grapevine averages $320-$620 depending on accessibility and the number of breaches.

Duct Insulation
Attic temperatures in Grapevine hit 140°F in July. Uninsulated or degraded duct insulation bleeds cooling capacity before the air reaches your living room. We install fresh fiberglass wrap or closed-cell insulation where the existing jacket has torn or compressed. Duct insulation in Grapevine runs $4.50-$7.20 per linear foot.

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
We carry parts and materials from Honeywell, Aprilaire, and Abatement Technologies - brands you can look up before we arrive. For Grapevine customers, this means no waiting on special orders for common fittings, registers, or plenum adapters. Our trucks stock mastic sealant, mechanical fasteners, and flex-duct diameters from 6 to 14 inches. If your system uses a specific component - a Honeywell electronic air cleaner tied into the return, an Aprilaire humidifier on the supply - we account for it in the sealing plan so we don’t disturb calibrated airflow.
Common Duct Repair & Sealing Problems We See in Grapevine Homes

- Original flex duct with tape-only joints. In Timberline and Stone Bridge Estates, the inner liner has separated from the outer jacket at the collar. The tape dried out years ago. These leaks pull 130°F attic air - and runway dust - straight into your supply side. We find this in roughly 60% of 1980s-1990s Grapevine homes we inspect.
- Mismatched duct sizing from repeated retrofits. The historic cottages near Main Street have been through three or four HVAC cycles. Abandoned branch runs still hang from the plenum, short-circuiting air back into the return. Static pressure drops, the blower works harder, and rooms never reach set temperature.
- Carbon soot bound to humidity inside flex runs. Under DFW’s eastern and western approach corridors, jet-exhaust particulates enter through leaks and register on the duct wall. Grapevine Lake’s evaporative humidity feeds mold growth on that same surface. Sealing without first removing the residue traps a mold-feeding film. We see this pairing in Shoreline Drive and lakefront sections of Stone Bridge Estates.
- Crushed or disconnected attic runs. Storage boxes, contractor traffic, or simply decades of sagging have flattened sections of flex duct. The camera shows a 3-inch debris build-up at the first elbow, then a complete blockage two feet later. Reconnection and re-supporting is standard; replacement is sometimes necessary.
Pricing for Duct Repair & Sealing in Grapevine, TX
We publish ranges because Haven Standard Clause 1 requires a written price before any work starts. Here is what duct repair and sealing costs in Grapevine’s market:
| Service | Typical Range |
|---|---|
| Duct sealing (mastic, single system) | $280 - $550 |
| Flex duct repair (per run) | $180 - $420 |
| Flex duct replacement (per linear foot) | $85 - $140 |
| Metal duct repair | $340 - $680 |
| Air leak detection and repair | $320 - $620 |
| Duct insulation (per linear foot) | $4.50 - $7.20 |
Three factors move Grapevine jobs within these ranges: attic accessibility (blown insulation versus walkable decking), the number of breaches found during camera inspection, and whether we need to remove accumulated debris before sealing. Every estimate is free. We put the number in writing. You approve it before we touch a tool. Call (682) 297-4068.
We Also Serve Cities Near Grapevine

Our crews work throughout the Dallas-Fort Worth metroplex. If you’re in Southlake, Euless, Flower Mound, or Lewisville, the same written-price process and Documented Photo Record apply. We schedule Duct Repair & Sealing in Grapevine alongside these neighboring cities daily - no separate dispatch, no different standard.
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 under DFW’s runway approach corridor, and your duct system has leaks on the return or supply side that pull in jet-exhaust particulates continuously. Cleaning the register face doesn’t stop the draw. We camera-inspect for leaks, seal them with mastic, and the streaking stops because the soot source is cut off. Call (682) 297-4068 for a free inspection - we’ll show you the leak location on camera before quoting the seal.
It depends on what the camera shows. If the inner liner is intact and the outer jacket is sound, we re-support sagging runs, replace failed tape with mastic-sealed mechanical joints, and extend service life 10-15 years. If the liner has separated or the insulation is saturated, replacement is the only fix that lasts. We quote both paths in writing and let the photo record decide. Free estimates: (682) 297-4068.
Yes. The lake’s evaporative surface raises localized humidity in shoreline subdivisions like Stone Bridge Estates. That moisture accelerates dust-mite colonization and mold growth inside flex ducts beyond what inland DFW suburbs experience. Combine that with airport soot draw-in, and you’ve got a pairing unique to Grapevine - a mold-feeding film that sealing alone won’t fix. We remove the residue first, then seal. That’s the difference between a temporary patch and a permanent repair.
We pressurize the system and use a smoke pencil or theatrical fog to visualize escape points. For buried runs, we run a camera with LED illumination - the same camera that delivers your before-and-after photo record. No drywall comes down. No insulation gets disturbed unless the leak is underneath it, and then we show you why before cutting access. The inspection itself is part of every free estimate.
Sealed ducts can handle higher filtration without overloading the blower. For Grapevine’s dual load of pollen and airport particulates, we typically recommend MERV 11-13 after sealing is verified - but only if your air handler’s fan table supports the static pressure. We check the manufacturer spec and size the filter accordingly. The wrong filter in a sealed system is as bad as no filter in a leaky one. We include this check in our sealing scope at no extra charge. Call (682) 297-4068 to schedule.
Schedule Your Free Duct Inspection in Grapevine
We’ll put a written price in your hand before any work starts. You’ll get a Documented Photo Record of every duct run when the crew leaves. The 365-Day Done Right Promise applies in writing. Our technicians are background-checked, uniformed, and named before arrival. Equipment includes Rotobrush, Nikro, and Abatement Technologies - names you can verify.
Call (682) 297-4068 for a free estimate on duct repair and sealing in Grapevine. A live person answers, 24/7.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Grapevine since 2013.




Before
After
Before
After