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 Frisco
Duct repair and sealing in Frisco typically runs $280-$650 for most homes, with flex duct replacement and full-system mastic sealing at the higher end. Most Frisco jobs are scheduled within 2-4 business days and completed in a single visit. Call (940) 290-8552 for a written estimate before any work starts.
We serve Frisco from our Dallas-Fort Worth dispatch office, with crews running daily routes through Preston Ridge, Starwood, and the Legacy West corridor. If you’re finding dust on counters days after cleaning, or rooms that never reach the thermostat’s set temperature, the problem is usually not your HVAC unit. It’s the ductwork behind the walls.
Why CleanRun Air Duct Cleaning Frisco Is Frisco’s Preferred Duct Repair & Sealing Company
CleanRun has worked inside more than 52,000 homes since 2013, and Frisco’s master-planned communities represent a significant share of our recent work. The pattern is unmistakable: production-built homes from Highland Homes, David Weekley, and Toll Brothers, constructed between 2000 and the early 2020s, with duct systems that have never been professionally addressed since the builder’s crew left.
Our Duct Repair & Sealing team documents every run with before-and-after photography, included as a standard deliverable on every job. No manager approval needed. The 365-Day Done Right Promise is backed in writing on every invoice, Haven Standard Clause 1.
Calls are answered by a live person, 24/7. Technicians are background-checked, uniformed, and identified by name before arrival - Haven Standard Clause 3: Verified Crews. We publish our pricing ranges openly because “call for a quote” does not exist in our process.
Our Duct Repair & Sealing Services in Frisco

Mastic Sealant
Builder-grade mastic at collars and boots dries and cracks within 8-12 years in Frisco’s attic conditions. We remove the failed material and apply fresh, rated sealant at every joint, boot, and penetration. This stops the attic air infiltration that pulls Collin County’s fine clay particulate directly into your supply system. A typical mastic re-sealing job in Frisco runs $280-$420 for a single air handler.

Flex Duct Repair
Frisco’s larger homes - commonly 3,000-5,000+ square feet - rely on extensive flex duct runs with multiple air handlers. Rushed production installs frequently kink or crush flex behind drywall during construction, choking airflow to specific rooms. Homeowners often mistake this for an undersized HVAC system. We replace crushed sections with properly supported flex, restore design airflow, and photograph the restriction before and after. Flex duct repair in Frisco typically ranges from $180 per section to $580 for multiple runs on a single system.

Metal Duct Repair
Some Frisco builds, particularly earlier Toll Brothers and custom elements in Starwood, use galvanized metal trunk lines with flex takeoffs. We repair separated seams, replace corroded sections, and seal with rated mastic or foil tape as appropriate. Metal repair runs $340-$650 depending on accessibility and extent.

Duct Insulation
Uninsulated or degraded ductwork in Frisco attics loses conditioned air rapidly during the May-through-September cooling season. We install or replace insulation on accessible runs, typically $220-$480 for partial coverage or $680-$1,200 for full attic systems.

Air Leak Repair
Leak detection in Frisco homes often reveals the same failure modes block after block: failed collar seals, disconnected boots, and penetrations left open during construction. We pressure-test where accessible, seal every identified leak with documented photography, and deliver a written scope. Air leak repair with full sealing typically runs $380-$620.

What happens when you call
- 1
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.
Before
AfterTrusted Brands We Service in Frisco
Our equipment roster includes professional-grade tools from Honeywell, Aprilaire, and Abatement Technologies - brands you can verify independently. We stock common replacement components for Frisco’s prevalent HVAC configurations, including flex duct, collars, boots, and rated mastic, which means most repairs are completed without a return visit. Our negative-pressure extraction systems use HEPA filtration, and our documentation cameras are calibrated for duct-interior photography that shows actual condition, not marketing-friendly blur.
Common Duct Repair & Sealing Problems We See in Frisco Homes

- Failed builder-grade mastic at collars and boots. The original sealant dries and shrinks within 8-12 years, pulling hot attic air and fine Collin County clay particulate straight into supply runs. We re-seal with fresh, rated mastic and photograph every joint.
- Crushed or kinked flex duct from rushed production builds. Drywall crews in Frisco’s fast-track subdivisions frequently compress flex runs behind wall cavities. The result: rooms that never cool properly, and homeowners who replace perfectly sized HVAC units unnecessarily.
- Original construction debris still sealed inside 8-15 year old systems. Drywall dust, fiberglass insulation fragments, and sawdust from the 2014-2018 build cycle continue fragmenting into living space. The camera shows it; the counters prove it.
- Continuous construction particulate infiltration. Frisco’s relentless development cycle means finished subdivisions sit adjacent to active construction phases. Return-air pathways pull fine particulate from grading, framing, and roofing activity into homes for years after move-in.
Pricing for Duct Repair & Sealing in Frisco, TX
| Service | Typical Range in Frisco |
|---|---|
| Mastic sealant re-application (single air handler) | $280-$420 |
| Flex duct repair / replacement (per section) | $180-$580 |
| Metal duct repair | $340-$650 |
| Air leak detection + sealing | $380-$620 |
| Duct insulation (partial attic coverage) | $220-$480 |
| Duct insulation (full attic system) | $680-$1,200 |
These ranges reflect Frisco’s typical home sizes and the longer duct runs common to 3,000+ square foot production builds. Every job receives a written price before any work starts - Haven Standard Clause 1 - with no per-vent pricing, no teaser coupons, and no invoice expansion once the truck is on your drive. Bring a competitor’s written estimate; we provide a Free Second Opinion at no cost.
We Also Serve Cities Near Frisco

Our crews run daily routes through Frisco and surrounding communities including Prosper, Little Elm, Celina, and The Colony. The same written pricing, documented photo record, and 365-Day Done Right Promise apply in every service area.
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

Yes. A 2016 Frisco build has had 8-9 years for original construction debris to bake into the duct interior and begin fragmenting into your living space. We were called to a Highland Homes build in Starwood after a homeowner kept finding gray dust settling on white kitchen counters a week after every wipe-down. Camera inspection through a supply register showed the original 2014 installation dust still coating the inside of the flex runs, and the builder-installed collar at the air handler had pulled loose from mastic shrinkage, pulling attic air straight into the return. We re-sealed the collar with fresh mastic, replaced two crushed flex sections, and completed source removal on the supply and return ducts under negative pressure with HEPA filtration - the dust on the counters stopped within days. Call (940) 290-8552 for a written estimate; estimates are free.
Because it probably is. Frisco’s master-planned subdivisions were built in tight, near-identical vintages - so a whole block of homes can share the same original construction debris and the same failing builder-grade flex duct connections. We frequently seal the same failed collar or boot on five houses on one street in the same week. Neighbors who move in together often need the same repair at the same time. The pattern is predictable enough that we stock the specific collar and boot sizes common to Frisco’s major builders. Call (940) 290-8552 for a written estimate; estimates are free.
Yes. Finished subdivisions routinely sit adjacent to active construction phases, and return-air pathways continuously pull fine particulate from grading, framing, and roofing activity into nearby homes. The black-clay soil common to Collin County generates additional fine dust when it dries and cracks during summer drought conditions. Your ductwork becomes the collection point. Sealing return-air leaks and maintaining intact filtration is the only defense that works. Call (940) 290-8552 for a written estimate; estimates are free.
Cleaning removes debris already inside. Sealing stops new debris and unconditioned air from entering. A sealed system maintains pressure integrity, protects the cleaning investment, and prevents attic air - carrying 130°F summer heat and construction particulate - from contaminating supply runs. We recommend both: source removal first, then sealing of all accessible joints. The photo record shows the difference. Call (940) 290-8552 for a written estimate; estimates are free.
Yes, particularly if your symptoms spike in January-February (mountain cedar) or March-April (oak/elm). North Texas’s prolonged HVAC season means Frisco ductwork cycles a high volume of air year-round, accelerating allergen buildup. But the bigger factor is often the original construction debris and failed seals pulling unfiltered attic air into the system. Sealing leaks and removing source contamination reduces the total particulate load your filtration must handle. The 365-Day Done Right Promise covers both the repair and its performance. Call (940) 290-8552 for a written estimate; estimates are free.
Ready to see what’s actually inside your ducts? Call CleanRun Air Duct Cleaning Frisco at (940) 290-8552. We’ll deliver a written price before any work starts, complete the job with a Documented Photo Record of every run, and back it with the 365-Day Done Right Promise in writing. No coupons. No per-vent games. Just documented evidence of what was done and how it looked when we finished.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Frisco since 2013.




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