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 Sealing Across North Richland Hills
We seal ducts in North Richland Hills homes every week, from the original 1970s ranches off Boulevard 26 to the two-story builds in Iron Horse and Smithfield. Our crews run out of the Dallas-Fort Worth office, so we’re on your street fast, not driving down from Oklahoma. In North Richland Hills, duct sealing isn’t a luxury add-on, it’s the difference between cooling your attic and cooling your bedroom. Call us at (361) 326-5060 and we’ll put a written price in front of you before any work starts.
Why Hollis Air Duct Cleaning Is North Richland Hills’s Preferred Duct Sealing Company
We’ve been doing this since 2004 as part of the Garrison Partners family, and our Duct Sealing team knows North Richland Hills houses by era, not just by square footage. The 1960s and 1970s ranch homes near the original downtown corridor have rigid metal ductwork with joints sealed decades ago using materials that crumble now. The newer subdivisions, Home Town and Iron Horse especially, run long flex duct runs that kink and separate where they meet the plenum. We don’t guess. We camera the system first, show you what failed, and write the price down before we touch anything.
Our technicians are background-checked and uniformed, and they work under The Garrison Standard: arrive inside the window, price in writing, do it by the book, leave the site clean. The 365-Day Done Right Promise covers every sealing job in writing. If it fails within a year, we come back at no charge, including a free second visit. Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues.
Duct Sealing Services in North Richland Hills
Duct Sealing Services in North Richland Hills address a problem most homeowners don’t know they have: conditioned air leaking into attics, crawl spaces, and wall cavities before it ever reaches the rooms you actually live in. In this market, a typical whole-house duct sealing job runs $1,200 – $2,800 depending on system size, accessibility, and whether we’re working with original rigid metal ductwork or replacing failed flex runs. We use professional-grade mastic and mechanical fasteners, not the foil HVAC tape you’ll find at the hardware store. That tape fails in North Richland Hills attics within a single cooling season.
Supply and Return Joint Sealing
Every connection between your air handler, plenum, trunk lines, and branch ducts is a potential leak point. We pressurize the system, measure leakage with a duct blaster, then seal each joint with mastic rated for the temperature swings your attic sees in July and January. The goal is simple: what your system produces, you get to breathe.
Flex Duct Repair and Replacement
Long flex runs in two-story North Richland Hills homes sag, kink, and pull away from collars over time. We don’t just tape over the symptom. We support the run properly, replace crushed or torn sections, and seal the connection so it holds against the negative pressure your system generates.
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.
Duct Insulation in North Richland Hills
Duct Insulation in North Richland Hills protects against a specific local problem: 105°F attic air wrapping around your 55°F supply ducts all summer long. Without proper insulation, you’re paying to cool the air twice. A typical duct insulation job in North Richland Hills, whether wrapping existing metal ductwork or replacing water-damaged flex, runs $800 – $1,900 for an average single-system home. We use insulation products from Abatement Technologies and Guardsman, specified to the R-value your attic demands.
Vapor Barrier Restoration
North Richland Hills humidity attacks duct insulation from the outside in. When the vapor barrier tears or the fiberglass gets wet, R-value drops and mold risk climbs. We strip damaged sections, inspect the duct underneath, and reinstall insulation with sealed seams that keep moisture out.
Attic Duct Encapsulation
For homes with extensive rigid metal trunk lines, we sometimes recommend full encapsulation: insulation wrapped, sealed, and jacketed to create a continuous thermal boundary. It’s more thorough than spot repair, and in older Boulevard 26-area homes with original ductwork, it often pays for itself in one summer of reduced runtime.
Trusted Brands We Service in North Richland Hills
We carry sealing and insulation products from Aprilaire, Abatement Technologies, and Guardsman, and we stock them locally so your job doesn’t wait on a warehouse shipment. Our rotary brush systems and negative-air machines come from Rotobrush and Nikro, the same equipment commercial crews use in hospitals and schools. When we recommend a product for your North Richland Hills home, we tell you exactly what it does and why it fits your system, not just the brand name.
Common Duct Sealing Problems We See in North Richland Hills Homes
- Asbestos-containing mastic crumbling on 1970s ranches. The original homes off Boulevard 26 and near the old downtown often have duct joints sealed with mastic that contained asbestos. We don’t disturb it. We work around it with modern encapsulation and sealing techniques that don’t aerosolize old material.
- Foil tape failing after one cooling season. In Iron Horse, Home Town, and Smithfield, we find foil HVAC tape lifted off rigid metal ducts by attic humidity after 9 – 10 months of continuous runtime. Tape is not a seal. We replace it with mastic that bonds to metal and flex alike.
- Flex duct kinking in two-story multi-zone systems. Newer North Richland Hills builds with multiple zones often have 20-foot flex runs that sag between joists. The kink creates turbulence, the collar separates, and attic air pours into the return. We support, shorten, or replace the run.
- Plenum separation from vibration and pest damage. Homes near the former airport flight path have decades of low-frequency vibration in the attic. Combined with squirrel and raccoon traffic, this crushes and separates ductwork at the plenum. We reinforce and seal with mechanical fasteners, not adhesive alone.
Pricing for Duct Sealing in North Richland Hills, TX
A typical whole-house duct sealing in North Richland Hills runs $1,200 – $2,800. Duct insulation alone, for wrapping or replacing damaged sections, typically falls between $800 – $1,900. What moves the number: how many air handlers you have, whether we’re working in a 120°F attic or a conditioned crawl space, and whether we find asbestos-containing materials that require modified procedures. We don’t do per-vent pricing. We don’t do teaser coupons. One flat price per system, agreed in writing before we start, and it doesn’t move when we’re standing in your hallway. Call (361) 326-5060 for a free estimate. We’ll inspect the system, show you the leaks, and give you the exact number.
We Also Serve Cities Near North Richland Hills
Our crews work throughout the Mid-Cities area. If you’re in North Richland Hills or nearby Hurst, Haltom City, Bedford, or Colleyville, we run the same schedule, the same pricing structure, and the same 365-Day Done Right Promise. Dispatch is coordinated from our Dallas-Fort Worth office, so we’re never far from 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 About Duct Sealing in North Richland Hills
Because your ducts are still leaking. We were called to a 1972 ranch off Boulevard 26 where the homeowner’s complaint was fine gray dust coating the registers within a week of cleaning. A camera inspection of the supply and return ducts showed the joints wrapped in old asbestos-containing mastic that had dried and cracked open, so we ran a negative pressure setup with HEPA filtration, sealed the failed collars with modern mastic, and the dust sheen never returned. If your system pulls attic air through gaps, no amount of duct cleaning fixes the source. Call (361) 326-5060 and we’ll find the leak.
Yes, fundamentally. Original 1970s ranches off the Boulevard 26 corridor often still carry asbestos-containing joint tape or mastic at every collar, while 1980s – 2010s builds like Iron Horse, Home Town, and Smithfield seal with failing foil HVAC tape that lets attic air pour into the return side. We camera first, identify the era’s typical failure mode, and choose the sealing method that solves it without creating a new problem. The price and the approach both depend on what we find. Call (361) 326-5060 for an exact quote, estimates are free.
Every 3 – 5 years for cleaning, but sealing should be inspected every 2 – 3 years in this environment. North Richland Hills sits where open land and developing subdivisions meet, and the pollen load from mountain cedar in winter, oak in spring, and ragweed in fall is severe. Unpaved roads and construction dust add particulate that loads filters faster and increases static pressure, which stresses joints and tape. If you’re on the rural edge with a dirt road nearby, lean toward the shorter interval. Call (361) 326-5060 and we’ll assess your specific exposure.
Yes, typically 15 – 30% in homes with significant leakage. North Richland Hills air handlers run 9 – 10 months a year, and attic temperatures in July and August exceed 130°F. Every cubic foot of 55°F supply air that leaks into that attic is air you paid to create that never cooled your bedroom. Every cubic foot of 130°F attic air pulled into a leaky return is air your system must fight to condition. Sealing stops both losses. The payback period in this climate is often under two years. Call (361) 326-5060 for a free estimate and we’ll measure your leakage so you know the number before you decide.
More involved than a single-story ranch, but the principle is identical: pressurize, measure, locate, seal. Two-story homes in Smithfield and newer Iron Horse phases often have long flex runs to second-floor zones, with dampers and multiple plenums that add connection points. We test each zone independently, identify which trunk or branch is leaking, and seal or replace as needed. The job takes longer, but the efficiency gain is often greater because these systems were more complex to begin with and more likely to have installer shortcuts at the original build. Call (361) 326-5060 for a written quote on your specific system.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving North Richland Hills since 2004.