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 North Richland Hills
Most duct repair calls we take in North Richland Hills aren’t from new construction. They’re from homeowners in 1970s and 1980s slab ranches off Rufe Snow Drive or near the Smithfield area, rooms that never cool evenly, utility bills that climbed without explanation, and at least one visit from an HVAC company ready to sell a bigger unit. Our Duct Repair & Sealing crew serves North Richland Hills from our Dallas-Fort Worth office, and we typically schedule within 48 hours. Call (817) 520-8797 for a written estimate before any work starts.
Why CleanRun Air Duct Cleaning Fort Worth Is North Richland Hills’s Preferred Duct Repair & Sealing Company
We’ve been in North Richland Hills homes since 2013, and the pattern is consistent: original flex duct in attics that hit 140°F before noon. Our customers here don’t want a sales pitch. They want the photo that shows the crushed run, the written price that doesn’t change, and a crew that shows up uniformed and named under Haven Standard Clause 3: Verified Crews.
Our 365-Day Done Right Promise applies to every North Richland Hills job in writing, not as a verbal courtesy. If the repair fails, we make it right. No manager approval needed.
Every visit ends with a Documented Photo Record - inside every duct run, before and after - delivered as part of the standard job record. You see what we saw. That practice has been non-negotiable since our first job.
We answer calls live, 24/7, and our background-checked technicians are identified by name before arrival. Free Second Opinion on any written estimate: bring a competitor’s quote and we’ll put our number next to it, in writing.
Our Duct Repair & Sealing Services in North Richland Hills

Flex Duct Repair
North Richland Hills’s 1970s-1990s slab ranches run flex duct through unconditioned attics that hit 140-155°F for five or more months a year. The spiral wire support and plastic inner liner don’t last 40 years in that environment. We cut out collapsed sections, rebuild with new flex supported at NADCA-recommended spacing, and seal every joint with mastic - not tape that dries and fails. A typical flex duct repair in North Richland Hills runs $280-$520 depending on linear feet and attic access.

Duct Sealing
Separated joints and dried mastic in NRH’s original duct board systems leak conditioned air into 150°F attic space, then pull in mountain cedar and oak/elm pollen through return leaks. We seal with professional-grade mastic sealant, pressure-testing after completion to verify the fix. Whole-system duct sealing in North Richland Hills typically costs $1,200-$2,400 for a single-system home.

Metal Duct Repair
Some NRH homes, particularly those built in the early 1970s near major corridors, have galvanized metal trunk lines with corroded seams or failed dampers. We patch, replace sections, or transition to modern flex where appropriate. Metal duct repair in North Richland Hills generally runs $340-$680 per section.

Duct Insulation
When original insulation has compressed or detached from flex duct in a 140°F attic, the R-value drops to nearly nothing. We re-insulate with proper vapor-barrier insulation or replace deteriorated runs entirely. Duct insulation work in North Richland Hills ranges from $180 for spot repair to $890 for full trunk line re-insulation.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in North Richland Hills
Our equipment roster includes Rotobrush for mechanical agitation, Nikro for negative-pressure extraction, and Guardsman for sealant application - brands any homeowner can look up and verify. We don’t use shop-vacs or hardware-store tools. For North Richland Hills customers, this means parts and materials are on the truck, not ordered from a warehouse three days out. The right tool for the specific failure mode we find in your attic.
Common Duct Repair & Sealing Problems We See in North Richland Hills Homes

- Collapsed flex at elbow bends. The spiral wire breaks and the brittle inner liner pinches shut, strangling airflow to the farthest rooms. Homeowners near Rufe Snow Drive in 1980s ranches call us convinced their AC is undersized. It’s almost never the unit.
- Dried mastic at duct board joints. Original sealant from 1975-1995 has turned to dust. Conditioned air leaks into the attic, and the system pulls pollen-laden attic air through return gaps. Your filter never sees that particulate.
- Disconnected runs found during cleaning. A duct run has pulled completely free of the plenum, dumping cooled air into insulation. The room gets nothing. The homeowner runs the system harder. The bill climbs.
- Insulation compression from decades of heat cycling. Flex duct insulation in NRH attics compresses to half its original thickness, losing thermal barrier exactly where it’s needed most. The duct sweats. The insulation gets wet. The cycle accelerates.
Pricing for Duct Repair & Sealing in North Richland Hills, TX
We publish ranges because Haven Standard Clause 1 requires a written price before any work starts. Here is what duct repair and sealing costs in the North Richland Hills market:
| Service | Typical Range in North Richland Hills |
|---|---|
| Flex duct repair (single run, attic access) | $280-$520 |
| Metal duct section repair/replacement | $340-$680 |
| Mastic sealant application, whole system | $1,200-$2,400 |
| Duct insulation spot repair | $180-$340 |
| Full trunk line re-insulation | $620-$890 |
| Air leak repair (register/plenum separation) | $150-$280 |
What moves the number: attic accessibility, linear feet of damaged duct, whether the plenum itself needs resealing, and whether we find additional disconnected runs once the camera is inside. We photograph everything, explain what we found, and deliver the written price before a single panel comes off. No per-vent pricing. No coupon that triples once the truck is in your driveway. Call (817) 520-8797 for your exact number - estimates are free.
We Also Serve Cities Near North Richland Hills

Our crews work the full Mid-Cities corridor, including North Richland Hills, Haltom City, Bedford, Colleyville, and Fort Worth. Same written-price standard, same documented photo record, same 365-Day Done Right Promise.
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

The problem is usually a collapsed flex duct run, not the unit. In NRH’s 1980s ranches, original flex duct in 140-155°F attics embrittles until the spiral wire snaps and the inner liner pinches shut at elbow bends. We see this near Rufe Snow Drive and throughout Smithfield-area neighborhoods: a bedroom that gets 20% of its designed airflow because the duct is physically collapsed, not because the AC is too small. A camera inspection finds it in minutes. Call (817) 520-8797 for a free estimate.
Sealing fixes joint separation and small leaks; replacement fixes collapsed, torn, or structurally failed duct. We determine which with a camera inspection of every run. If the inner liner is intact but mastic has failed at seams, we seal. If the spiral wire is broken and the duct has collapsed inward, we replace. You’ll see the photos before we recommend either. Call (817) 520-8797 to schedule.
Yes, and measurably. NRH attics exceed 140°F for five or more months annually, accelerating embrittlement of flex duct liners and causing them to collapse at bends - a structural failure that also traps debris. Newer suburbs like Keller to the north don’t share this pattern because their housing stock is younger and often uses different duct materials. The heat cycles are the primary driver of the collapsed-flex failures we document in North Richland Hills. Call (817) 520-8797 if your home was built before 1995.
It helps significantly if your return ductwork is leaking. Mountain cedar peaks December through February; oak and elm peak March through April. When return ducts pull air through gaps in duct board or separated joints, they bypass your filter entirely and draw pollen-laden attic air directly into your system. Sealing those leaks forces all intake air through the filter. We verify the fix with pressure testing after mastic application. Call (817) 520-8797 for an assessment.
We arrive uniformed and identified by name, photograph the attic access and HVAC area, then run a camera through every duct run. You see what we see: collapsed flex, separated joints, compressed insulation, or disconnected runs. We explain each finding, deliver a written price before any work starts, then repair or replace with materials from our Rotobrush, Nikro, and Guardsman-equipped trucks. Every joint is sealed with mastic. We pressure-test the sealed system, photograph every run after completion, and deliver the photo record as part of your job file. The 365-Day Done Right Promise applies in writing. Call (817) 520-8797 to schedule.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving North Richland Hills since 2013.




Before
After
Before
After