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 Frisco
Duct repair and sealing in Frisco typically runs $280-$850 for most homes, with flex duct replacement at the higher end and mastic sealing of accessible joints at the lower. We dispatch crews to Frisco from our Dallas-Fort Worth coordination office, and most Frisco appointments are scheduled within three to five business days. Call (940) 240-8552 for a written estimate before any work starts.
We’ve worked in enough Frisco homes to know the pattern. The city grew so fast between 2005 and 2018 that most of what’s standing went up during one of three tract-home booms, with flex duct installed under production pressure and never touched since. Our Duct Repair & Sealing team documents every run with before-and-after photos, so you see what was actually in there, not just what we say we found.
Why CleanRun Air Duct Cleaning Lewisville Is Frisco’s Preferred Duct Repair & Sealing Company
CleanRun has held the same practice since 2013: written price before work starts, every time, under Haven Standard Clause 1. No exceptions. We’ve served more than 52,000 homes with this protocol, and the Frisco jobs we’ve logged since entering this market share a common profile - original flex duct, drywall dust still in the system from construction, and register collars loosened by years of Blackland Prairie clay movement.
Our technicians are background-checked, uniformed, and identified by name before arrival - Haven Standard Clause 3: Verified Crews. The equipment we bring includes Rotobrush and Nikro systems for source removal, plus professional-grade mastic and insulation materials from Abatement Technologies and Honeywell. Every job concludes with a Documented Photo Record delivered to you, and every repair is backed by our 365-Day Done Right Promise in writing.
We’re not a coupon operation. We don’t offer $79 teaser visits that turn into $800 invoices once the truck is in your driveway. We put one flat price per system in writing before a panel comes off, and we encourage you to use our Free Second Opinion on any competitor’s written estimate. Bring the quote; we’ll put our number next to it.
Our Duct Repair & Sealing Services in Frisco
Flex Duct Repair
Frisco’s housing stock is dominated by large two-story homes in master-planned communities like Phillips Creek Ranch, Starwood, and Westfalls Village, most built between 2000 and 2018 with long flex duct runs stapled under production time pressure. That flex sags between joists, crushes against trusses, and separates at collars as the clay soil shifts. In Phillips Creek Ranch we opened a two-story 2011 build with a second-floor air handler that howled on startup; camera inspection showed a collapsed flex run crushed against a truss and a separated collar at a register, both original install. We re-secured the plenum, replaced the run with insulated flex, sealed every joint in the zone with mastic, and the static pressure dropped enough that the blower motor stopped cycling on high. Flex duct repair in Frisco typically runs $340-$620 depending on run length and accessibility.
Mastic Sealant Application
Mastic is the only sealant we apply to Frisco ductwork, and we apply it only after source removal. Here’s why that order matters: the original foil tape on 10-20-year-old Frisco joints has dried and failed, and the metal underneath carries a decade of accumulated dust and pollen. Mastic over a still-dirty substrate fails within a season, reopening leaks right where the original tape gave out. We clean first, then brush mastic onto every joint, saddle, and penetration. Typical mastic sealing for a full Frisco system runs $280-$450.
Metal Duct Repair
Some Frisco homes, particularly custom builds in Starwood and earlier construction near the city’s western edge, use galvanized metal trunk lines with flex branches. We repair separated seams, replace rusted sections, and re-seal takeoffs. Metal repair requires different tools and materials than flex work, and we stock both. Most metal duct repairs in Frisco fall between $380 and $720.
Duct Insulation
Unconditioned attic space in Frisco homes reaches 140°F in July and August. Insulated flex duct that’s torn or water-stained loses its R-value and sweats condensation into surrounding insulation. We replace damaged insulation with fresh fiberglass wrap or install new pre-insulated flex where the original is too degraded. Duct insulation work in Frisco typically runs $420-$850 for partial replacement, $1,100-$1,800 for full system re-insulation on larger homes.
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 Frisco
We specify our equipment because you can verify it yourself. On Frisco jobs we deploy Rotobrush and Nikro equipment for source removal, apply mastic and insulation materials from Abatement Technologies, and install replacement components from Honeywell and Aprilaire where the original hardware has failed. These are trade-recognized brands with published specifications, not proprietary systems you can’t research. We stock common flex diameters, collar sizes, and mastic compounds locally, so most Frisco repairs don’t wait on parts.
Common Duct Repair & Sealing Problems We See in Frisco Homes
- Register collars pulled loose by slab movement. Frisco’s Blackland Prairie clay swells in wet seasons and shrinks in dry ones, stressing slab foundations and pulling flex-duct collars away from boots. Because this clay movement clusters in late summer and late winter, that’s when our callbacks spike - a pattern you don’t see in the sandier, more stable soils east of the city.
- Original flex duct sagging between joists. The 2000-2018 builder booms installed flex duct fast, with support straps spaced too far apart. Over fifteen years, gravity and thermal cycling create low spots where debris collects and moisture pools, accelerating material breakdown.
- Return systems loaded with pollen and rural dust. Cedar elm, oak, and mountain cedar pollen infiltrates return grilles, and homes near Frisco’s western and northern edges - where unpaved roads and open land still exist - see additional dust loading tracked in on footwear and re-lofted by HVAC airflow. A repair job that skips source removal just stirs this debris back into the air.
- Failed original tape on every joint. Production-build foil tape has a functional lifespan of roughly ten years in attic conditions. Frisco homes built during the peak booms are now well past that window, and the tape failure is nearly universal in unconditioned spaces.
Pricing for Duct Repair & Sealing in Frisco, TX
Here’s what duct repair and sealing actually costs in Frisco’s market:
| Service | Typical Range |
|---|---|
| Mastic sealing (full system, after cleaning) | $280-$450 |
| Flex duct repair (single run replacement) | $340-$620 |
| Metal duct repair (seam/trunk work) | $380-$720 |
| Duct insulation (partial replacement) | $420-$850 |
| Full system re-insulation (large home) | $1,100-$1,800 |
What moves a Frisco job toward the higher end: multiple zones, attic access limited by truss design, and the presence of original construction debris requiring source removal before sealing can begin. What keeps it lower: accessible joints, localized collar re-attachment, and systems already cleaned within the past few years. We deliver one written price per system before work starts - Haven Standard Clause 1 - and that price includes the Documented Photo Record. No per-vent pricing. No add-ons after arrival. Call (940) 240-8552 for an exact quote; estimates are free.
We Also Serve Cities Near Frisco
Our crews work throughout the northern Dallas-Fort Worth corridor. If you’re in Little Elm, Denton, Lewisville, or McKinney, the same protocols apply: written price first, documented photos after, 365-Day Done Right Promise in writing. We coordinate Duct Repair & Sealing in Frisco and surrounding markets from our DFW office, with local scheduling for each city.
Serving Frisco, TX - Our Local Coverage Area
We’re based in the Frisco 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 Frisco
Every three to four years for the main house, and every two to three years if you heat or cool a detached shop or outbuilding. The additional dust loading from unpaved access roads and the pollen infiltration through return grilles in this part of the Cross Timbers eco-region accelerates particulate accumulation beyond what you’d see in a fully paved suburban setting. Sealing should be inspected at each cleaning interval, with mastic touch-up applied wherever original tape has aged out. Call (940) 240-8552 and we’ll put a written maintenance schedule to your specific property.
Because Blackland Prairie clay expands in wet seasons and contracts in dry ones, slab movement peaks in August-September and February-March, pulling flex-duct collars loose at registers exactly when HVAC systems are working hardest. Repairs done during stable spring or fall weather may look sound until the next soil shift cycle stresses them again. We account for this in our repair method: extra mechanical support at collars, longer mastic cure times, and documented photo records so we can compare condition season to season. Call (940) 240-8552 for an inspection before the next stress cycle.
Most need both: source removal, then sealing at minimum, with partial replacement of the worst runs. The 2005-era installs we see in Frisco’s east-of-Tollway subdivisions commonly hold visible drywall compound dust and blown cellulose from construction, because the homes transferred so quickly from builder to buyer that pre-occupancy cleaning never happened. The flex itself is often structurally sound but poorly supported and dirty at every joint. We photograph the full system, replace collapsed or torn runs, and seal what remains. Call (940) 240-8552 for a camera inspection and written scope.
Higher MERV filters catch more pollen - critical in Frisco’s heavy cedar elm and oak seasons - but they also restrict airflow and increase static pressure, which stresses already-leaky ductwork. If your system has original flex with separated collars, a MERV 13 filter will pull more air through those gaps instead of through the registers, worsening energy loss and debris infiltration from the attic. We measure static pressure during every repair evaluation and recommend filter grades compatible with your sealed duct capacity. Call (940) 240-8552 for pressure testing included with any estimate.
Yes. We regularly service detached shops, barn offices, and pool equipment structures on Frisco’s larger lots and rural properties. These systems often use flex duct or galvanized pipe with no insulation, exposed to greater temperature swings and more dust infiltration than the main house. The same protocols apply: written price before work, source removal, photo documentation, and mastic sealing. Access and run length affect pricing; most outbuilding jobs in Frisco run $220-$480. Call (940) 240-8552 to schedule.
Ready for a written estimate? Call CleanRun Air Duct Cleaning Lewisville at (940) 240-8552. We’ll schedule a technician to inspect your Frisco home’s ductwork, deliver a flat price per system in writing before any work begins, and leave you with a Documented Photo Record of every run we touched. Our 365-Day Done Right Promise means if it’s not right, we make it right - backed in writing, not just stated in marketing copy.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Lewisville, serving Frisco since entering the Dallas-Fort Worth market.