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 North Richland Hills
Duct repair and sealing in North Richland Hills typically runs $340-$890 for most single-story homes, with full flex-duct replacement on aging systems reaching $1,200-$2,400. We dispatch crews from our Dallas-Fort Worth office and carry the common flex-duct sizes, mastic sealant, and insulation ratings needed for North Richland Hills’ 1965-1995 housing stock on every truck. Call (940) 240-8552 for a written estimate before any work starts - Haven Standard Clause 1.
North Richland Hills sits on some of the most active expansive clay in Tarrant County. That matters for your ducts. The same seasonal swelling and shrinking that cracks patio slabs also pushes apart duct-boot-to-register connections in homes built during the city’s primary residential buildout. We’ve found separated boots pulling unconditioned attic air and loose fiberglass insulation into living rooms from Keller-Harvey to Holiday Lane. Our Duct Repair & Sealing crews don’t guess at what’s failing. We photograph every run before touching it.
Why CleanRun Air Duct Cleaning Lewisville Is North Richland Hills’s Preferred Duct Repair & Sealing Company
We’ve worked in North Richland Hills since 2013, and the pattern is consistent: homes off Rufe Snow Drive, Davis Boulevard, and Iron Horse Boulevard built between 1970 and 1995 arrive with the same set of active failures. Original flex duct baked past 150°F in unconditioned attics. Mastic sealant turned to powder. Duct tape that hasn’t held since the Clinton administration. Customers here don’t need a sales pitch. They need someone to show them what’s actually broken, put a written price on fixing it, and leave a photo record behind.
Our 365-Day Done Right Promise applies to every North Richland Hills job in writing, not as a verbal assurance that disappears with the technician. Haven Standard Clause 6: Documented Accountability. We’ve served over 52,000 homes since founding, every one with a written price before work started and a photo record when the crew left. North Richland Hills customers specifically mention the photo deliverable in feedback - they want to see the separated boot, the sagging low point, the rodent-chewed joint. We show them.
Technicians are background-checked, uniformed, and identified by name before arrival - Haven Standard Clause 3: Verified Crews. Scheduling is coordinated from our Dallas-Fort Worth office with local dispatch to North Richland Hills neighborhoods. All calls are answered by a live person, 24/7.
We also offer a Free Second Opinion on any written estimate from another company. Bring their quote. We’ll put our number next to it in writing. No charge.
Our Duct Repair & Sealing Services in North Richland Hills
Duct Sealing
Duct sealing in North Richland Hills is almost always a joint-by-joint rebuild, not a single-patch repair. The 30-55-year-old flex duct and ductboard in local attics has been through thousands of heat cycles above 150°F. Mastic sealant fails. Tape adhesive degrades. We seal every accessible joint with fresh mastic, then verify the repair under negative pressure - pulling air through the system with a Nikro or Rotobrush negative-pressure machine while HEPA filtration runs. If the pressure reading doesn’t hold, we find the leak and re-seal it. Written price before we start. Photos of every sealed joint in your deliverable.
Mastic Sealant Application
Mastic is the only sealant we use on metal-to-metal and metal-to-flex connections in North Richland Hills attics. Duct tape fails in heat; mastic remains flexible and airtight. We brush it 2 inches past each joint edge on supply and return trunk lines, then let it cure before pressure-testing. For homes near unpaved roads or open land in the western reaches of North Richland Hills - where Blackland Prairie clay dust loads return systems faster - this matters more. Fine particulate finds every gap. Mastic closes them.
Flex Duct Repair
Flex duct repair is our most common North Richland Hills service call. First-generation flex duct from the 1970s and 1980s develops liner delamination - the inner plastic layer separates from the wire helix, creating sagging low points where debris pools. On that 1978 single-story brick ranch off Rufe Snow Drive, our tech pulled the return grille and found the boot-to-register connection separated by slab movement, pulling attic air and loose fiberglass insulation straight into the living space. A camera inspection showed sagging low points in the original first-generation flex duct where decades of Blackland Prairie clay dust had pooled, plus rodent-chewed joints near the air handler. We re-sealed every failed joint with mastic sealant, replaced the damaged flex runs, re-insulated the trunk line, and confirmed the repair under negative pressure with HEPA filtration running before we buttoned the system back up. The customer received before-and-after photos of every run.
Metal Duct Repair
Metal ductwork in North Richland Hills appears mainly in homes built before 1980 and in later additions where contractors used galvanized trunk lines. We see rust-through at condensate contact points, separated seams from thermal expansion, and failed vibration isolators near the air handler. Repair involves cutting out damaged sections, fabricating replacement pieces, and sealing with mastic - never tape alone. For metal systems, we also inspect the plenum (the distribution box attached to your air handler) for cracks where it meets the furnace cabinet.
Duct Insulation
Unconditioned attics in North Richland Hills routinely exceed 150°F. Duct insulation with degraded vapor barriers loses R-value and sweats condensation into surrounding materials. We replace damaged insulation with new fiberglass wrap or closed-cell foam insulation rated for attic installation, sealed at all seams. This is often paired with flex duct repair or replacement - there’s little value in sealing a duct whose insulation has collapsed.
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 North Richland Hills
Our trucks carry professional-grade equipment from Rotobrush, Nikro, Honeywell, and Aprilaire - brands customers can look up independently before agreeing to a price. Rotobrush and Nikro negative-pressure machines handle the extraction and verification side. Honeywell and Aprilaire air cleaners and media filters integrate with repaired duct systems when customers want filtration upgrades after sealing. We stock common flex-duct diameters, mastic, and insulation in our Dallas-Fort Worth warehouse for same-week material runs to North Richland Hills. No waiting on third-party suppliers for standard repairs.
Common Duct Repair & Sealing Problems We See in North Richland Hills Homes
- Attic heat cycles destroy first-generation flex duct. Thirty to fifty-five years above 150°F causes liner delamination and sagging low points where Blackland Prairie clay dust and debris pool. A “cleaning” often uncovers duct that has to be replaced, not just sealed.
- Expansive clay slab movement separates duct boots from registers. The same soil that cracks driveways pushes apart boot-to-floor connections, pulling unconditioned attic air and loose fiberglass insulation fibers directly into living spaces. We find this on Iron Horse Boulevard, along Davis Boulevard, and throughout the 1970s-1980s neighborhoods.
- Ashe juniper pollen infiltrates failed joints. December through February mountain cedar season loads return grilles, and when mastic or duct-tape joints have already failed, that pollen bypasses the filter and coats the blower motor and supply and return ducts.
- Rodent infiltration at degraded joints. Attic temperatures that break down duct tape also make fiberglass insulation attractive nesting material. We regularly find chewed flex duct near air handlers where rodents entered through failed gable vent screens or roof junction gaps.
Pricing for Duct Repair & Sealing in North Richland Hills, TX
These are actual ranges for North Richland Hills homes based on 2013-2025 job records. Every price is written and agreed before work starts - Haven Standard Clause 1.
| Service | Typical Range in North Richland Hills |
|---|---|
| Single-joint mastic seal (accessible) | $180-$280 |
| Multi-joint duct sealing, whole system | $340-$620 |
| Flex duct repair / partial replacement (1-2 runs) | $420-$780 |
| Full flex duct replacement, single-story home | $1,200-$2,400 |
| Duct boot re-attachment / slab-movement repair | $260-$440 |
| Duct insulation replacement (trunk line) | $380-$650 |
| Metal duct section repair / replacement | $480-$890 |
What moves a job toward the higher end: attic accessibility constraints, rodent damage requiring sanitizing, multiple separated boots from slab movement, or systems with original ductboard that needs full replacement rather than sealing. What keeps it lower: straightforward joint re-sealing on accessible metal trunk lines with intact flex duct branches. We don’t quote per-vent or per-register. One flat price per system, agreed in writing, before any panel comes off.
Free estimates. No charge to inspect and price. Call (940) 240-8552.
We Also Serve Cities Near North Richland Hills
Our crews work throughout the Dallas-Fort Worth metro, including North Richland Hills neighbors Southlake, Grapevine, Flower Mound, and Lewisville. Each city gets the same written-price-first protocol and documented photo record. Housing stock varies - Southlake’s 1990s-2010s builds have different failure patterns than North Richland Hills’ 1970s ranches - and our pricing reflects actual local conditions, not a one-size-fits-all menu.
Serving North Richland Hills, TX - Our Local Coverage Area
We’re based in the North Richland Hills 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 North Richland Hills
It depends on what the camera shows. If the inner liner is intact and joints have simply dried out, we can re-seal with mastic and extend serviceable life. If we find liner delamination, rodent damage, or multiple sagging low points where debris has pooled - common on 1970s flex duct in North Richland Hills attics - replacement of affected runs is the only repair that holds. We photograph everything and show you before quoting. Call (940) 240-8552 for a free inspection.
Expansive Blackland Prairie clay. The soil under North Richland Hills swells when wet and shrinks during drought, moving slabs seasonally. That movement cracks or pushes apart duct-boot-to-register connections in homes built during the 1970s-1980s buildout. It’s an active failure pattern we see more densely here than in newer suburbs to the north. We re-attach boots with flexible connectors and seal with mastic to accommodate minor future movement.
Homes near unpaved roads or open land in western North Richland Hills load return systems with fine clay particulate faster than interior suburban lots. For these properties, we recommend inspection every 3-4 years and cleaning when camera inspection shows debris buildup exceeding 1/8 inch at elbows or the plenum. Sealed systems with intact mastic and no rodent issues may stretch to 5-6 years. Unsealed systems with failed joints need attention sooner - the debris is the symptom, but the joint failure is the disease.
The EPA observation about indoor air quality is exactly why duct sealing matters more than cleaning alone. If your ducts are pulling 150°F attic air, fiberglass insulation fibers, and rodent droppings through separated joints - conditions we find regularly in North Richland Hills - cleaning without sealing just resets the clock. Sealed ducts maintain pressure integrity. Cleaned, sealed ducts with verified negative-pressure integrity are what changes the air your system moves. We document both.
We service detached systems when they’re ducted and connected to a dedicated air handler or heat pump. Common in North Richland Hills properties with workshop buildings or converted garages near the Smithfield area. We don’t extend main-house ductwork - that’s an HVAC design job - but we will inspect, clean, seal, and repair existing duct systems in outbuildings under the same written-price protocol. Photos and documentation included.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving North Richland Hills since 2013.