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 Southlake
Most duct repair calls we take from Southlake aren’t about obvious rips or collapsed runs. They’re about rooms that never cool evenly, dust that returns within days of cleaning, and energy bills that climb every summer despite a new HVAC unit. Our Duct Repair & Sealing team serves Southlake from our Dallas-Fort Worth dispatch office, and we’ve learned that homes here need a different approach than standard North Texas stock. The 1990s and 2000s custom builds that dominate Southlake, many 4,000-8,000 square feet with three or four separate systems, carry flex-duct networks now 15-30 years old. Those aging runs sag, accumulate debris in low spots, and suffer micro-separations at boot connections that a surface cleaning won’t touch. We camera-inspect every connection before quoting. Call (817) 520-8797 for a written estimate with no obligation.
Why CleanRun Air Duct Cleaning Fort Worth Is Southlake’s Preferred Duct Repair & Sealing Company
We’ve served Southlake since adding the city to our route sheet in 2013, and the pattern is consistent: homeowners here research before calling, ask specific questions about equipment and process, and expect documentation they can verify. That matches how we work. Every job starts with a written price delivered before any panel comes off, under Haven Standard Clause 1. Every duct run is photographed before and after, included as a standard deliverable. Our 365-Day Done Right Promise is backed in writing, not subject to manager approval.
Our technicians are background-checked, uniformed, and identified by name before arrival, operating under Haven Standard Clause 3: Verified Crews. The equipment roster includes Rotobrush, Nikro, and Abatement Technologies - brands customers can look up independently. We don’t send a shop-vac and a prayer.
Response time to Southlake is typically same-week scheduling, with dispatch coordinated from our Dallas-Fort Worth office. Crews know the area: Dove Creek, Timarron, the older custom builds off Kimball Avenue, the 1998-2005 stock near Southlake Town Square. That local familiarity means we arrive knowing what we’re likely to find.
Our Duct Repair & Sealing Services in Southlake
Duct Sealing
Sealing is where most Southlake jobs should start, but rarely do. The mastic and foil-tape joints at plenum and trunk connections dry out after 15-30 years of continuous May-September runtimes, leaking conditioned air into unconditioned attic space. We test with a pressure pan and seal with fresh mastic or mechanical fasteners, depending on the joint type. In a 6,000 square foot Southlake home with three air handlers, this can recover 15-25% of lost airflow before any cleaning begins.
Flex Duct Repair
Southlake’s 1988-2010 custom homes sit on expansive black clay that swells and shrinks enough seasonally to gradually pull flex-duct collars loose at ceiling boots inside finished ceilings. Our crew was out on West Dove Road in the Dove Creek area of a 6,200 square foot 1998 build running three air handlers and roughly 55 registers. The homeowner had a persistent musty smell in the primary bedroom with a supply register barely moving air; our camera inspection at the boot connection above the vaulted ceiling found the flex collar completely separated, pushing attic insulation fibers into the supply stream. We re-secured the collar with mastic sealant and a new boot clamp, sealed two more partial separations we found on the same trunk, and the register CFM came back where it should be on our balometer reading. That’s why we camera-inspect every boot connection before quoting a cleaning here, a step that isn’t standard on newer stock in Trophy Club or Westlake.
Metal Duct Repair
The older metal trunk lines in Southlake’s 1990s builds suffer seam separation and rust at low points where condensation collects. We cut access, repair or replace the affected section, and seal with mastic. For galvanized trunks with extensive corrosion, we’ll document the condition and quote replacement before any cutting begins.
Duct Insulation
Attic temperatures in Southlake exceed 140°F in July and August. Duct insulation degrades, compresses, or gets torn by rodents or work crews. We replace with formaldehyde-free fiberglass or closed-cell foam wrap, depending on the application and clearance. Proper insulation on a long flex run in a Southlake attic can drop supply air temperature by 8-12°F before it reaches the register.
Mastic Sealant Application
Tape fails. Mastic doesn’t, when applied correctly. We brush or trowel water-based duct mastic at all joints, boots, and plenum connections, then verify with pressure testing. In Southlake’s multi-system homes, this is often a full-day job covering 40-60 joints across three or four air handlers. The result is measured, not guessed at.
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 Southlake
Our equipment roster includes Rotobrush rotary brush systems for mechanical agitation, Nikro HEPA-filtered negative-air machines for containment, and Abatement Technologies portable HEPA scrubbers for post-repair air quality verification. We stock common boot clamps, collar connectors, and mastic compounds for Southlake’s predominant duct types, which means most repairs don’t wait on parts. For specialized components in larger custom homes, our Dallas-Fort Worth warehouse maintains next-day availability on Honeywell, Aprilaire, and Guardsman accessories. Customers can verify every brand independently; we don’t use equipment we can’t name.
Common Duct Repair & Sealing Problems We See in Southlake Homes
- Micro-separations at flex-duct boot collars, hidden above finished ceilings, caused by seasonal slab movement in 1990s Southlake homes on expansive black clay. These pull attic insulation into the supply stream and reduce airflow to individual rooms by 30-50% before the homeowner notices anything beyond a “stuffy” feeling.
- Sagging flex-duct runs across 4,000-8,000 square foot homes with 40-60 registers, where low spots collect debris and restrict airflow well before the filter shows a problem. The camera shows a 3-inch debris build-up at the first elbow, not a vague “dirty duct” description.
- Mastic and foil-tape seals at plenum and trunk joints drying out and losing adhesion after 15-30 years of continuous May-September runtimes, leaking conditioned air into unconditioned attic space. We measure this with a pressure pan; the homeowner sees the number.
- Pollen and black-clay dust accumulation accelerated by DFW’s long cooling season. Cedar fever season (December through February) draws Ashe juniper pollen into oversized duct systems where it recirculates for months. Southlake’s health-conscious homeowners notice the difference after proper sealing and cleaning.
Pricing for Duct Repair & Sealing in Southlake, TX
A typical duct sealing job in Southlake runs $850-$1,800 for a single-system home, and $1,800-$3,200 for the multi-system custom homes that dominate here. Flex duct repair at a single boot connection, including camera inspection, re-securing, and mastic sealant, typically runs $280-$450. Full flex-duct replacement on a long run with multiple sags or separations runs $650-$1,200 per run. Metal duct repair starts at $400 for localized seam work and ranges to $1,500+ for trunk section replacement with proper access and sealing.
What moves the price: the number of air handlers, accessibility (vaulted ceilings and finished attic spaces take longer), the extent of separation or corrosion found, and whether we’re adding insulation replacement. We deliver a written price before any work starts, every time, under Haven Standard Clause 1. No per-vent pricing. No coupon that balloons once the truck arrives. Bring a competitor’s written estimate; we provide a Free Second Opinion at no cost.
| Service | Typical Range in Southlake |
|---|---|
| Single-system duct sealing | $850 - $1,800 |
| Multi-system duct sealing (3+ handlers) | $1,800 - $3,200 |
| Flex duct boot repair (single connection) | $280 - $450 |
| Full flex-duct run replacement | $650 - $1,200 per run |
| Metal duct seam/trunk repair | $400 - $1,500+ |
Call (817) 520-8797 for an exact quote. Estimates are free, written, and delivered before any work begins.
We Also Serve Cities Near Southlake
Our crews work throughout the mid-cities and northeast Tarrant County. If you’re in Southlake or nearby Colleyville, Grapevine, Bedford, or Euless, the same crew, equipment, and pricing structure applies. Dispatch is coordinated from our Dallas-Fort Worth office.
Serving Southlake, TX - Our Local Coverage Area
We’re based in the Southlake 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 Southlake
Because Southlake’s 1990s custom homes on expansive black clay experience seasonal slab movement that gradually separates flex-duct collars at ceiling boots, and those separations are hidden inside finished ceilings. A standard cleaning quote assumes intact ductwork; we won’t quote work without knowing what we’re actually dealing with. The camera inspection is included in our standard pre-quote walkthrough at no charge. Call (817) 520-8797 to schedule.
No. A 4,000-8,000 square foot Southlake home with 40-60 registers across multiple zones requires more equipment, more crew hours, and a more thorough pre-inspection than a standard 2,000 square foot residential call. Our written quote reflects the actual scope: number of air handlers, total linear feet of ductwork, and condition found at boot connections. We don’t use flat-rate pricing that loses money on large homes and gets made up with upsells. Call (817) 520-8797 for a written estimate matched to your actual system.
It pulls unfiltered attic air - insulation fibers, dust, rodent droppings, and seasonal pollen - directly into your supply stream and distributes it through the register into your living space. The homeowner on West Dove Road smelled it before she saw any dust; the camera showed fiberglass insulation packed into the separated collar. After re-securing and sealing, the musty smell resolved within 48 hours. If you have persistent odors or dust that returns quickly after cleaning, a boot separation is the likely cause. Call (817) 520-8797 and we’ll camera-inspect.
We use mastic as the primary sealant, with mechanical fasteners at boots and collars. Tape - even foil tape - degrades in Southlake’s 140°F attics and continuous summer runtimes. Mastic remains flexible and bonded for the life of the joint when applied to a clean, dry surface at proper thickness. We pressure-test after sealing and document the before-and-after readings in your job record. Haven Standard Clause 1 requires that the method and material be specified in writing before work starts; you’ll see “mastic sealant, water-based, UL 181B-M rated” on your quote.
Every 3-5 years for homes built 1988-2010 with original flex-duct installations. The black clay movement is gradual but cumulative; a collar that was tight at year 12 may show partial separation by year 18. After repair and proper sealing, the inspection interval can extend to 5-7 years if no new symptoms appear. Homes with recent foundation repair or significant landscaping changes that altered drainage patterns should be checked sooner. Call (817) 520-8797 to schedule a camera inspection; we’ll show you what we find before discussing any work.
Ready to see what’s actually inside your ducts? Call CleanRun Air Duct Cleaning Fort Worth at (817) 520-8797 for a free written estimate. We’ll camera-inspect your boot connections, deliver an itemized scope with exact pricing before any work starts, and leave you with a Documented Photo Record of every run - plus our 365-Day Done Right Promise in writing. No coupons. No surprises. Just measured work you can verify.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Fort Worth, serving Southlake since 2013.