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 Keller
Most duct repair and sealing jobs in Keller run $280-$650 for single-zone systems and $750-$1,400 for multi-zone homes with extensive flex-duct runs through the attic. We’re typically on-site in Keller within one to two business days, with scheduling coordinated from our Dallas-Fort Worth office and crews dispatched locally. Call (817) 520-8797 for a written estimate before any work starts.
We’ve been working Keller’s neighborhoods since 2013, and the housing stock here tells its own story. The brick-veneer, slab-foundation homes built during the 1995-2010 boom - the Heritage subdivisions off Keller-Smithfield Road, the tracts near Bear Creek Parkway, the developments around Keller Parkway - share a common vulnerability: original foil-and-polyester flex duct routed through attics that hit 130-140°F every July and August. That sustained heat degrades duct materials faster than the manufacturer rated them for, and many of these homes were rushed to closing with construction debris still packed in the plenum boxes. Our Duct Repair & Sealing crews know what to look for because we’ve documented it hundreds of times.
Why CleanRun Air Duct Cleaning Fort Worth Is Keller’s Preferred Duct Repair & Sealing Company
Keller homeowners research before they call. They want evidence, not promises. Since 2013, we’ve served more than 52,000 homes with a written price delivered before any panel comes off and a documented photo record of every duct run delivered before the crew leaves. That record is standard, not an upgrade.
Our 365-Day Done Right Promise is backed in writing on every job - Haven Standard Clause 1 - not buried in a policy manual. If the work isn’t right, we make it right. No manager approval required.
Technicians are background-checked, uniformed, and identified by name before arrival under Haven Standard Clause 3: Verified Crews. Tomas Reyes, owner of CleanRun, established this protocol in 2013 and still reviews crew documentation personally.
We don’t do coupon pricing or per-vent bait-and-switch. One flat price per system, agreed in writing, with a free second opinion on any competitor’s written estimate. Bring us a quote; we’ll put our number next to it.
Our Duct Repair & Sealing Services in Keller
Duct Sealing
Duct sealing in Keller typically runs $280-$550 for a single-zone system and $650-$1,100 for multi-zone homes with complex attic branching. We use mastic sealant and professional-grade tapes - Guardsman and Abatement Technologies products - applied after camera inspection identifies every leak point. In Keller’s 1995-2010 tract homes, we commonly find delaminated foil facing at flex-duct collars where 130-140°F attic heat has baked the adhesive beyond its rated lifespan. Sealing these points restores designed airflow and stops the system from pulling unconditioned attic air into your supply.
Flex Duct Repair
Flex duct repair in Keller ranges from $180-$340 for isolated collar re-securing or section replacement to $450-$780 for multiple run repairs in attic plenums. The original foil-and-polyester flex in Heritage subdivision homes and similar 2000s-era builds tears at stress points - the elbows, the sagging spans between joists, the connections where the duct meets the plenum boot. We photograph every damaged section before touching it, specify the replacement material by brand and R-value, and deliver before-and-after documentation as part of the standard job record.
Metal Duct Repair
Metal duct repair in Keller is less common than flex work but critical where hard-pipe trunks serve multiple zones. Repairs run $320-$580 for seam sealing and patch work, $650-$950 for section replacement with insulated hard pipe. These systems appear in some custom builds near Colleyville and in older sections of Keller, and they require different techniques - sheet-metal screws, fiberglass-reinforced mastic, and proper vibration isolation. We specify the approach in writing before starting.
Air Leak Repair
Air leak repair in Keller focuses on the failure points our camera inspections reveal: separated joints at flex-duct elbows, collapsed return boots packed with construction debris, and pinholes in aging duct wrap. Typical scope runs $350-$620 for leak detection, repair, and post-repair pressure verification. We use Rotobrush camera systems and, where needed, Nikro negative-pressure extraction equipment to document the repair and confirm airflow restoration. Every leak location is photographed, every repair is described in the written scope, and the photo record is delivered to you before we leave.
Duct Insulation
Duct insulation replacement in Keller attics runs $480-$890 for partial re-wrap and $1,100-$1,800 for full system recovery, depending on linear footage and accessibility. The existing R-4 or R-6 flex wrap in 1995-2010 homes has often compressed or torn where it contacted hot roof decking or was disturbed by subsequent HVAC service. We specify new insulation by R-value and vapor-barrier rating, installed with proper overlap and sealing at all joints.
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 Keller
Our equipment roster includes Rotobrush camera and cleaning systems, Nikro negative-pressure extractors, Abatement Technologies HEPA filtration, and Guardsman sealant products. These are trade-recognized brands you can look up independently, and we name them because the equipment matters as much as the technician operating it. For Keller homes with Honeywell or Aprilaire whole-house air cleaners integrated into the duct system, we coordinate sealing and repair work around those components without disrupting their calibration. Parts for common Keller HVAC configurations are stocked locally, so we’re not ordering flex duct or collar fittings after we’ve already opened your system.
Common Duct Repair & Sealing Problems We See in Keller Homes
- Delaminated flex-duct collars from sustained attic heat. The foil facing on original 1995-2010 flex duct separates from the polyester core where it wraps the metal collar, creating a gap that leaks conditioned air into the attic and pulls 130-140°F attic air back into the system. Camera inspection finds it every time; register airflow alone won’t reveal it.
- Builder-era return plenums packed with construction debris. In the Heritage subdivision and similar tracts off Keller-Smithfield Road, we regularly open return boots and find drywall dust and blown-insulation fibers compacted since original construction. The system has never actually moved clean air since closing day.
- Pinhole leaks and separated joints in long attic runs. Keller’s large homes - 2,500 to 5,000 square feet with multi-zone systems - have complex branching layouts with flex duct spanning significant distances through hot attics. Elbows sag, joints separate under thermal cycling, and pinholes develop that only show under pressure testing or camera inspection.
- Shared equipment access in apartments and condos. Some Keller multi-family buildings route ductwork through common plenums or shared attic spaces with restricted access. We coordinate with property management, document our scope in writing for all parties, and perform sealing work within HOA maintenance agreements where applicable.
Pricing for Duct Repair & Sealing in Keller, TX
| Service | Typical Range in Keller |
|---|---|
| Duct sealing, single-zone system | $280-$550 |
| Duct sealing, multi-zone system | $650-$1,100 |
| Flex duct repair, isolated section | $180-$340 |
| Flex duct repair, multiple runs | $450-$780 |
| Metal duct repair, seam/patch | $320-$580 |
| Metal duct repair, section replacement | $650-$950 |
| Air leak detection and repair | $350-$620 |
| Duct insulation, partial re-wrap | $480-$890 |
| Duct insulation, full system | $1,100-$1,800 |
These ranges reflect Keller’s specific housing stock: large homes with long flex-duct runs, complex multi-zone branching, and attic conditions that accelerate material degradation. Every estimate is written and delivered before work starts - Haven Standard Clause 1 - with no per-vent pricing, no coupon teaser rates, and no invoice inflation after the truck arrives. The price we write is the price you pay. Call (817) 520-8797 for a free estimate with no obligation.
We Also Serve Cities Near Keller
Our crews work Duct Repair & Sealing in Keller and surrounding communities regularly, including North Richland Hills, Southlake, Haltom City, and Colleyville. Each city has distinct housing stock and duct configurations, and we adjust our scope accordingly - but the written price, documented photo record, and 365-Day Done Right Promise apply everywhere we work.
Serving Keller, TX - Our Local Coverage Area
We’re based in the Keller 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 Keller
These homes carry original foil-and-polyester flex duct through attics that exceed 130-140°F in summer, degrading the adhesive and facing faster than the manufacturer rated for, while newer builds use improved materials and often route ductwork through conditioned spaces. The combination of housing vintage and attic thermal stress makes duct sealing a concentrated need in Keller’s core neighborhoods. Call (817) 520-8797 for a camera inspection and written estimate.
We verify leaks with camera inspection and pressure testing, not guesswork. The camera shows delaminated collars, separated elbows, and collapsed sections that register airflow alone cannot detect. In Keller’s 1995-2010 homes, we find leaks in the attic on roughly 70 percent of initial inspections. The photo record documents every location before we touch it.
It’s likely construction debris from original build-out, not accumulated household dust. Keller’s rapid 1995-2010 expansion meant many homes were rushed to closing with drywall dust and blown-insulation fibers left in the return boot. We’ve opened plenums in Heritage subdivision homes that had never been cleaned since 2003 and found the boot packed solid. Source removal with HEPA filtration, followed by plenum sealing with mastic, restores proper return airflow.
Sealing reduces infiltration of unfiltered attic air and outdoor particles through leak points, but it does not replace filtration for pollen that enters through normal return airflow. For Keller’s concentrated December-February mountain cedar cycle and spring oak/grass surges, we recommend pairing duct sealing with a properly sized whole-house air cleaner - Honeywell or Aprilaire units we can evaluate during the same visit. The sealed duct system simply stops adding unfiltered attic air to the load.
Yes, with written coordination through property management or the HOA. We document our scope for all parties, work within maintenance agreements, and perform sealing in common plenums or shared attic spaces without disrupting neighboring units. The written price, photo record, and 365-Day Done Right Promise still apply. Call (817) 520-8797 to discuss your building’s specific access and approval process.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Fort Worth, serving Keller since 2013.