Fast, Reliable Duct Repair & Sealing Across North Richland Hills
Duct repair and sealing in North Richland Hills typically runs $180-$650 depending on whether we’re patching a few separated joints or replacing collapsed flex runs, and most jobs are completed in a single visit. If your home was built in the 1970s or 1980s along the 76180 corridor, there’s a strong chance you’re still running on original duct-board or first-generation flex-duct that’s 15 to 25 years past its service life.
We’ve been driving out to North Richland Hills from our dispatch for over 42 years. We know the difference between the older ranch stock off Rufe Snow Drive and Davis Boulevard and the newer builds up in 76182. That matters because the problems we find in a 1978 slab-on-grade with attic ductwork are completely different from what shows up in a 2005 two-story. When you call (844) 685-6342, you’ll reach a live person, not a voicemail tree. We’ll give you an honest price before we lift a single tool, and we’ll be there when we say.
Why Bellows Air Duct & Vent Co. Is North Richland Hills’s Preferred Duct Repair & Sealing Company
North Richland Hills homeowners call us back because we show them the problem before we fix it. Every Duct Repair & Sealing job starts and ends with a camera inspection - a visual record of what’s actually inside your ducts, not just our word. Ray Castillo, our owner, has built this company on a simple standard: one honest price shown before work starts, and a 90-Day Done Right Promise stamped on every invoice.
Our technicians are background-checked and uniformed, and they answer to a live person at our office 24 hours a day. Most repairs in North Richland Hills are completed in a single visit because we stock the parts and materials that actually fit these older systems - Nikro and Abatement Technologies equipment for proper cleaning and prep, Honeywell and Aprilaire components when replacements are needed. We don’t bait you with a low coupon and then change the price at the door. The number we give you on the phone is the number on the invoice.
Our Duct Repair & Sealing Services in North Richland Hills
Duct Sealing with Mastic Sealant
In the older North Richland Hills homes we work, the joints were originally sealed with duct tape, not mastic. That tape dries out, cracks, and separates after decades of thermal cycling in attics that hit 140-160°F every July. We strip off the failing tape and apply professional-grade mastic sealant to every joint and seam, creating a permanent, flexible bond that won’t degrade. For a typical 1,600-square-foot ranch in the 76180 area, full mastic sealing of accessible joints runs $280-$420.

Flex Duct Repair
The original flex-duct runs in North Richland Hills’s 1970s and 1980s stock used thinner Mylar liners that weren’t built for 40-plus years of North Texas attic heat. We regularly find sections where the inner liner has torn or collapsed inward, choking airflow to back bedrooms. In the Wooded Creek neighborhood off Davis Boulevard, we opened up a supply trunk in a 1978 ranch and found the original duct-board inner liner had delaminated into fibrous debris that was blowing into the living room through every register. We sealed the failing sections with mastic and replaced the worst flex runs with insulated aluminum duct, cutting the homeowner’s summer cooling bill by 22%. Flex duct repair or replacement in North Richland Hills typically runs $180-$340 per run depending on length and attic accessibility.

Metal Duct Repair
Some North Richland Hills homes, particularly a few pockets in the 76182 area, have galvanized metal trunk lines. These can corrode at seams or separate at joints from decades of vibration and thermal expansion. We patch corroded sections with matching metal and seal with mastic, or replace short damaged sections with insulated flex or metal as appropriate. Metal duct repair in North Richland Hills generally runs $220-$480 depending on the extent of damage and whether we need to fabricate custom fittings.

Duct Insulation
Uninsulated or degraded flex duct in a North Richland Hills attic is bleeding conditioned air into a 150-degree space for four months every year. We wrap replacement flex with R-6 or R-8 insulation, or install pre-insulated duct where the original has no wrapping at all. For older NRH homes with attic ductwork, adding or replacing insulation typically runs $340-$650 for a complete system, with partial insulation repairs at $180-$320. The payback on your summer electric bill in North Richland Hills is usually 18 to 30 months.

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.
Trusted Brands We Service in North Richland Hills
We repair and seal ductwork made with components from Honeywell, Aprilaire, and Abatement Technologies - the same brands serious HVAC contractors specify when they’re building a system to last. We don’t show up hoping we have the right materials in the truck. For North Richland Hills’s older housing stock, we carry the mastics, foil tapes, insulated flex, and replacement collars that actually fit 1970s and 1980s duct-board and early flex systems. That means faster turnaround, fewer return trips, and a repair that matches the original construction rather than a cobbled-together fix.
Common Duct Repair & Sealing Problems We See in North Richland Hills Homes
- Duct tape seals failing at joints. The original tape applied in 1978 or 1985 has long since dried and cracked. We find gaps at trunk-to-branch connections that pull attic dust, insulation fibers, and pollen directly into your airflow. Mastic sealant is the permanent fix.
- Collapsed flex-duct liners choking back bedrooms. The thin Mylar inner liner of original flex duct tears or collapses inward after decades of heat cycling. Homeowners in the Rufe Snow Drive corridor call us complaining that the back bedroom is 8 degrees warmer than the front of the house. This is almost always a collapsed flex run.
- Slab movement opening gaps at floor registers. North Richland Hills’s freeze-thaw cycles shift slab-on-grade foundations, stressing rigid duct-board connections at floor registers. We find gaps that pull unconditioned attic air into living spaces, sometimes for years before a homeowner notices.
- Delaminated duct-board liner turning to fibrous debris. The fiberglass inner surface of original duct-board breaks down after 40 to 50 years, sending particles through every register. Camera inspection shows the difference between surface dust and structural liner failure.
Pricing for Duct Repair & Sealing in North Richland Hills, TX
Here’s what honest pricing looks like for Duct Repair & Sealing in North Richland Hills:
| Service | Typical Range in NRH |
|---|---|
| Mastic sealant application (accessible joints) | $280-$420 |
| Single flex duct repair/replacement | $180-$340 |
| Metal duct section repair | $220-$480 |
| Duct insulation (partial system) | $180-$320 |
| Duct insulation (complete system) | $340-$650 |
| Full duct-board trunk replacement | $850-$1,400 |
What moves you up or down in these ranges: attic accessibility (tight truss spaces take longer), extent of contamination (heavy debris requires more prep), and whether we’re working around existing HVAC equipment. We disclose the full price before we start, and we honor our standing offers: $50 off any repair over $250, a free second opinion on any written estimate, and a permanent 5% senior and veteran discount. Call (844) 685-6342 for a free estimate - we’ll give you the exact number for your specific home.
We Also Serve Cities Near North Richland Hills
Our technicians cover the full mid-cities area including North Richland Hills, Watauga, Hurst, Colleyville, and Bedford. Same response standards, same upfront pricing, same camera-verified results. If you’re in the 76180 or 76182 ZIP and need duct repair or sealing, we’re already in your neighborhood.
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
If your house was built between 1965 and 1990 in the 76180 corridor and you’ve never had ductwork replaced, you almost certainly have original duct-board or first-generation flex duct. The surest sign is a camera inspection - we can show you in real time whether your inner liner is intact or delaminating into debris. Call (844) 685-6342 and we’ll run the camera for free with any service call.
In the older subdivisions off Rufe Snow Drive, we regularly find flex duct sections whose inner Mylar liners have torn or collapsed inward after 40-plus years in extreme attic heat. This chokes airflow to back bedrooms while the front of the house stays comfortable. A camera inspection confirms the blockage, and replacing the damaged flex run usually restores balanced airflow in a single visit. Call (844) 685-6342 for a free estimate.
Yes, if your joints are still sealed with original duct tape, that tape has failed or is about to. North Richland Hills’s thermal cycling - 140°F attics in summer, near-freezing in winter - destroys adhesive tape within 15 to 25 years. Mastic sealant remains flexible and permanent. For a typical NRH ranch, full mastic sealing runs $280-$420 and pays for itself in reduced energy waste within two cooling seasons. Call (844) 685-6342 to schedule.
Yes, especially if your current flex runs are uninsulated or the original wrapping has degraded. North Richland Hills attics bake at 140-160°F for four months yearly, and uninsulated duct loses 20 to 30 percent of conditioned air before it reaches your vents. Insulating or replacing with pre-insulated flex typically runs $340-$650 for a full system, with payback in 18 to 30 months on summer cooling costs. Call (844) 685-6342 for an exact quote on your home.
We use professional-grade mastics, insulated flex, and replacement components from Honeywell, Aprilaire, and Abatement Technologies - the same brands specified by serious HVAC contractors. We don’t substitute cheap materials that won’t survive another decade in a North Richland Hills attic. Every repair is camera-verified before and after, and backed by our 90-Day Done Right Promise. Call (844) 685-6342 for a free estimate.
Ready to stop losing conditioned air to your attic and breathing decades-old duct debris? Call Bellows Air Duct & Vent Co. at (844) 685-6342 for a free estimate on duct repair and sealing in North Richland Hills. We’ll show you exactly what’s happening inside your system, give you one honest price before we start, and stand behind the work for 90 days - no paperwork, no arguing.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving North Richland Hills since 1984.