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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Before
AfterFast, Reliable Duct Repair & Sealing Across McKinney
Duct repair and sealing in McKinney typically runs $280-$650 for most single-system homes, with flex duct repairs at the first elbow off the air handler starting around $180 and full-system mastic sealing reaching $550-$850 for larger two-story plans. We’re dispatched from our Dallas-Fort Worth office and serve McKinney neighborhoods including Stonebridge Ranch, Craig Ranch, and the Historic Downtown corridor with crews who know the specific duct layouts used by DR Horton, Lennar, and Ashton Woods during the 1995-2015 build wave. If your upstairs registers barely move air or your utility bills climbed after a dry, dusty summer, the problem is usually in the attic, not the unit. Call (940) 240-8552 for a written estimate before any work starts.
Why CleanRun Air Duct Cleaning Lewisville Is McKinney’s Preferred Duct Repair & Sealing Company
We’ve worked McKinney production homes since 2013, and the pattern is unmistakable. Homes built in the same 3-5 year window by the same builder fail at the same spot - typically the first elbow off the air handler - because the same crew used the same flex-duct layout across hundreds of lots. That repetition means our technicians spot the failure faster, quote it accurately, and fix it without exploratory cutting.
Our McKinney customers receive the same documented deliverables as every other CleanRun job: a written price before work starts (Haven Standard Clause 1), a photo record of every duct run before and after, and the 365-Day Done Right Promise backed in writing. We don’t do “call for a quote.” The number you get on the phone is the number on the invoice.
Scheduling and dispatch run from our Dallas-Fort Worth office, with crews carrying Rotobrush and Nikro equipment to McKinney daily. Background-checked, uniformed technicians identify themselves by name before arrival. Haven Standard Clause 3: Verified Crews.
Our Duct Repair & Sealing Services in McKinney
Flex Duct Repair
McKinney’s 2,500-4,500 sq ft two-story plans rely on long flex-duct runs through unconditioned attics, and those runs sag, kink, and separate at collars as the liner ages under extreme attic heat. We reattach separated collars, replace degraded flex sections, and re-strap spans to eliminate sag. Working a Stonebridge Ranch home built by DR Horton in the early 2000s, our techs pulled down the flex run at the first elbow off the air handler and found the inner liner separated from the collar with attic dust and drywall grit packed into the gap - a layout failure we see on nearly every lot on that street from the same build window. We reattached and mastic-sealed the collar, re-strapped the sagging span over the unconditioned attic, and camera-inspected the supply and return ducts before buttoning the system back up. Fifteen minutes after restart, static pressure dropped and the second-story registers finally had real airflow again.
Duct Sealing
Our Duct Repair & Sealing team seals supply and return leaks with mastic sealant and metal-backed tape rated for attic temperatures, not the failing cloth tape many builders used. In McKinney, sealing matters more than in cooler climates: every cubic foot of 140-degree attic air pulled through a leak is a cubic foot your compressor worked to cool that never reached your living room. We pressure-test after sealing to verify results.
Metal Duct Repair
Older McKinney homes near Historic Downtown and some custom builds in Adriatica use galvanized metal trunk lines with flex takeoffs. We repair separated seams, replace rusted sections, and seal transitions where metal meets flex. The camera shows the gap before we quote; the camera shows it closed before we leave.
Duct Insulation
When flex-duct insulation degrades in McKinney attics - the outer vapor barrier cracks, the fiberglass compresses - we replace the run or wrap with new insulation rated for the application. Poorly insulated ducts in unconditioned spaces lose 20-30% of conditioned air energy before it reaches the register. We photograph the degraded insulation and the replacement for the job record.
Mastic Sealant Application
Mastic is the only sealant we use on McKinney duct repairs. It’s a water-based compound that brushes onto joints and cures to a flexible, permanent seal. Unlike tape, it doesn’t peel in attic heat. We apply it to every collar, seam, and transition we touch, then verify with a pressure test.
Air Leak Repair
Leaks at the plenum (the big metal box on top of your air handler), at register boots where drywall meets duct, and at dampers inside the trunk line - we find them with a combination of visual inspection, pressure testing, and camera survey. Every leak location is photographed and included in your documented photo record.
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 McKinney
CleanRun crews carry professional-grade equipment from Rotobrush, Nikro, and Honeywell - brands you can look up independently before agreeing to any work. We stock common flex-duct diameters, collar sizes, and mastic quantities for McKinney’s production-home inventory, which means most repairs finish in a single visit without waiting on parts. For specialized components in custom builds, our Dallas-Fort Worth office coordinates next-day delivery. We don’t guess at compatibility. We match what’s in your attic.
Common Duct Repair & Sealing Problems We See in McKinney Homes
- Builder-grade flex duct kinked at the first elbow off the air handler during install - now separating at the collar and dumping attic air and Blackland Prairie clay dust into supply and return ducts. This is the single most common failure mode in Stonebridge Ranch and Craig Ranch homes built 1995-2015.
- Construction dust and drywall debris left behind at handover in new McKinney homes, clogging registers and loading the blower motor years before the homeowner ever thinks to schedule a cleaning. A 2018 build isn’t too new for duct problems - it’s often old enough for the first failures to show.
- Unconditioned attic heat sagging long flex runs in 2,500-4,500 sq ft two-story plans, opening joints along the lint pathway so leaks pull from the attic instead of the living space. McKinney’s attic temperatures regularly exceed 130°F in July and August.
- Identical duct layouts failing identically across entire blocks - because McKinney’s huge 1995-2015 production-home tracts were built by a handful of crews using identical flex-duct layouts, homes built within the same 3-5 year window by the same builder tend to fail at the same spot, turning duct sealing here into a repeatable, block-by-block pattern rather than one-off repairs.
Pricing for Duct Repair & Sealing in McKinney, TX
| Service | Typical Range in McKinney |
|---|---|
| Single flex-duct repair (first elbow, collar reattach) | $180-$280 |
| Multiple flex-duct repairs (2-3 runs) | $340-$520 |
| Full-system mastic sealing (single system, up to 12 runs) | $550-$850 |
| Metal duct seam repair / section replacement | $280-$480 |
| Duct insulation replacement (per run) | $140-$220 |
| Pressure test and camera inspection | $120-$180 (waived with repair) |
What moves the number: system size (McKinney’s 4,000 sq ft plans have more runs than the national average), attic accessibility, and whether the repair requires us to move stored items or work around water heaters mounted near the plenum. We deliver a written price before any work starts, every time, under Haven Standard Clause 1. No per-vent pricing. No add-ons after the truck arrives. Free estimates. Call (940) 240-8552.
We Also Serve Cities Near McKinney
Our crews work McKinney daily and also handle duct repair and sealing in Allen, Plano, Frisco, and Richardson. Each city’s housing stock differs - Plano’s 1970s-80s metal trunks, Frisco’s newer builds still under builder warranty - and our pricing and approach adjust accordingly. The documented photo record and written upfront price apply everywhere we work.
Serving McKinney, TX - Our Local Coverage Area
We’re based in the McKinney 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 McKinney
Builder crews in McKinney’s fast-growth years often left construction dust and drywall debris in ducts at handover, and the flex-duct collars at the air handler were frequently attached with inadequate mechanical fasteners or tape that fails within 5-7 years in attic heat. We’ve sealed 2016-2019 builds in Craig Ranch where the first elbow was already separated. The age of the house matters less than the quality of the original install. Call (940) 240-8552 and we’ll camera-inspect before quoting.
Because the same builder crews used identical flex-duct layouts across hundreds of adjacent lots during McKinney’s 1995-2015 build wave, the first elbow off the air handler - where the flex makes its sharpest bend - fails repeatedly on entire streets. It’s not coincidence. It’s repetition. We spot the pattern in the first five minutes of attic entry. That predictability lets us quote accurately without exploratory cutting.
Yes. McKinney sits on reactive clay soil that generates fine particulate during dry stretches, and constant construction in surrounding undeveloped tracts pushes that dust into HVAC intakes of completed homes. When ducts leak at attic joints, the negative pressure pulls that clay dust directly into the supply stream. The camera shows it packed into gaps at the first elbow - gray, granular, distinct from household lint. We photograph it before we touch it.
We pressure-test the duct system and run a camera through every accessible run. The photo record shows the separated collar, the gap dimension, and the debris loading - documented evidence, not a technician’s opinion. Haven Standard Clause 1 requires written pricing; the documentation requirement means we can’t quote what we can’t photograph. You see what we see before you agree to anything.
It often does. In McKinney’s 2,500-4,500 sq ft two-story plans, long flex runs through hot attics sag and leak, so the second-story registers never receive their designed airflow. Sealing the leaks and re-strapping the sag restores static pressure and balances delivery. We measure airflow at each register before and after, and the photo record documents the structural repair. If sealing alone doesn’t solve it, we’ll tell you before we start - and put that in writing too. Call (940) 240-8552 for a free estimate.
Ready to stop losing conditioned air to your attic? Call CleanRun at (940) 240-8552 for a written estimate on duct repair and sealing in McKinney. Every job starts with a documented inspection, includes a photo record of every run, and is backed by our 365-Day Done Right Promise. No per-vent pricing. No surprises. Just evidence you can see and a price you can hold in your hand.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving McKinney since 2013.