Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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 Sealing Across Colleyville
Duct sealing in Colleyville typically runs $850 – $1,900 per system depending on home size, number of air handlers, and how much of the ductwork sits in hot attic spaces. Most Colleyville jobs are completed in a single day, and the written price you get before we start is the price you pay when the work is done. If you’re noticing uneven room temperatures, higher cooling bills, or dust that returns days after cleaning, the problem is usually air escaping through gaps in your ductwork. That’s exactly what we fix. Call Hollis Air Duct Fort Worth at (682) 255-2572 for a free estimate on Duct Sealing in your Colleyville home.
Why Hollis Air Duct Fort Worth Is Colleyville’s Preferred Duct Sealing Company
Colleyville homeowners tend to ask the same thing before we walk in the door: how do we know the leaks are actually sealed if we can’t see them? Fair question, and the answer is documentation. Every job we run includes before-and-after photos of your own ductwork, plus a leakage measurement taken with a manometer. You see the numbers change. You don’t have to trust us; you can read the results.
Our team works in Colleyville regularly, from the Timarron golf course area to the neighborhoods off Cheek-Sparger Road and Glade Road. We know these homes: large floor plans, multiple zones, flex duct snaked through attics that get brutally hot in July and August. We’re part of the Garrison Partners family and every technician arrives background-checked and uniformed. The Garrison Code governs how we behave on your property: arrive inside the window, price in writing before any work starts, do the job by the book, and leave the site cleaner than we found it.
Roy Castellanos, who leads our Colleyville work, stands behind every seal with the 365-Day Done Right Promise. If a sealed section fails within a year, we return and fix it at no charge. You get that in writing. Most shops won’t put a year in writing. We do.
Styles & brands we work with
Duct Sealing Services in Colleyville
Duct Sealing Services for Colleyville homeowners means locating every supply run, return line, and plenum connection where air leaks into unconditioned space, then closing those gaps with mastic sealant or foil tape rated for HVAC use. A typical single-system home in Colleyville runs $850 – $1,500. Homes with two or three air handlers run higher because each system is sealed separately, which is the only way to do it right. The job includes an initial inspection with a manometer, sealing of all accessible runs, and a final leakage test so you can see the improvement in writing.
Air Handler and Plenum Work
The plenum is the metal box that connects your air handler to the main trunk lines, and it’s one of the most common leak points in Colleyville homes. We find gaps here on roughly 8 out of 10 jobs, often where the original installation was rushed or where mastic has cracked from years of attic heat. Sealing the plenum correctly requires the air handler to be shut down, surfaces cleaned and prepped, and mastic applied with enough thickness to handle thermal expansion. When done right, a sealed plenum alone can cut total duct leakage by a third or more in some Colleyville houses.
Zoned System Verification
Many Colleyville homes have high-efficiency multi-zone HVAC setups with motorized dampers in the ductwork. Here’s the problem: if dampers stay partially closed, your system hides leaks. We manually open every zone before we test, so the manometer reading reflects the entire system, not just the zones that happened to be calling for air. This is the difference between a sealing job that actually fixes your problem and one that just patches the easy spots. You get a written leakage number for the whole house, all zones open, before and after.
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 Colleyville
Duct Insulation is a separate but related service that Colleyville homeowners need more than most. When your ductwork runs through attic space that reaches 140 degrees or higher during North Texas summers, uninsulated or poorly insulated ducts force your air conditioner to work against the heat. You’re paying to cool air that warms up before it reaches the vents. We install or replace insulation wrap around accessible supply and return runs, and insulating a typical single-system Colleyville home runs $700 – $1,400 depending on the linear footage and attic access. Insulated ducts mean cooler air at the register and a system that cycles less often.
Attic Heat and R-Value
Colleyville attics are some of the hottest in the DFW metro, and that heat does two things to your ducts. It bakes dust onto interior surfaces, which makes sealing prep more demanding. And it transfers directly through uninsulated duct walls, warming the air before it reaches your bedroom. We use insulation with an R-value appropriate for ventilated attic conditions, wrapped tight and sealed at every seam. No gaps, no thin spots, no shortcuts.
Insulation After Sealing
If you’re doing both, insulation always goes on after sealing. You don’t insulate over an active leak. We complete the mastic work, run the final manometer test, and only then wrap the runs. This order matters, and it’s part of the written scope on every Colleyville job that includes both services. Call us at (682) 255-2572 and we’ll tell you whether insulation is worth doing on your system, based on the actual attic conditions we find.
Trusted Brands We Service in Colleyville
We work on duct systems attached to every major HVAC brand found in Colleyville homes: Trane, Carrier, Lennox, Rheem, American Standard, and Goodman. When it comes to filtration and sealing materials, we use products from Rotobrush, Aprilaire, Abatement Technologies, and Guardsman. These are the same tools commercial crews run, not hardware-store gear. For Colleyville customers, that means the mastic, tape, and insulation we use on your home is rated for the temperature swings your attic actually experiences. We also stock common sealants and flex duct components for fast turnaround, so most Colleyville sealing jobs are completed without waiting on shipped parts.
Common Duct Sealing Problems We See in Colleyville Homes
- Multiple air handlers where only one gets sealed. Colleyville has a high percentage of large custom builds with two or three separate HVAC systems. If a crew only seals one, the other two keep leaking into the attic. We price per system and seal every system you ask us to, then test each one independently.
- Flex duct crushed in tight attic spaces. Insulated flex duct is common in Colleyville homes built from the 1990s forward. In low attics, it gets pinched between framing and decking, which crushes the inner liner and chokes airflow. Sealing won’t fix crushed flex; we re-support the run or replace the damaged section, then seal it properly.
- Zoned dampers masking leaks. As described above, partially closed dampers hide the true leakage numbers. This is one of the most overlooked issues in large Colleyville homes with multi-zone systems. We won’t hand you a leakage report we didn’t earn with all dampers manually opened.
- Old mastic crumbling from attic heat. We recently sealed ducts in a custom home near the Timarron golf course area, where the attic ducts were so hot that the old mastic had cracked on three separate supply runs. Our crew used a Rotobrush with HEPA filtration to remove baked-on dust, then applied new sealing to all supply and return ducts, cutting leakage by a measurable percentage on our manometer. This pattern repeats across Colleyville because the attic heat is relentless.
See the difference
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After
Before
After
Before
AfterPricing for Duct Sealing in Colleyville, TX
Here are the numbers, in plain English. A single-system duct sealing job in Colleyville typically costs $850 – $1,500. A two-system home runs $1,500 – $2,400. A three-system custom home runs $2,400 – $3,600. These ranges include the inspection, sealing of accessible supply and return runs, plenum work, and a post-seal manometer test for every system we touch. What pushes a job toward the high end? Attic access through a finished attic, long flex runs that are hard to reach, and homes where multiple zoned dampers require individual testing. One thing it never includes: surprises. The price is in writing before any work starts, and it does not move at the door. Call (682) 255-2572 for a free, exact quote on your Colleyville home.
We Also Serve Cities Near Colleyville
Our crews cover Colleyville and the surrounding Tarrant County communities, including Bedford, Euless, Southlake, and Haltom City. If you live near the Colleyville border in any of these cities, you’re still in our service area. Duct Sealing in Colleyville customers often ask us to handle a rental property or family member’s home nearby, and we do. Same written pricing, same 365-Day Done Right Promise.
Serving Colleyville, TX - Our Local Coverage Area
We’re based in the Colleyville 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 Colleyville
We lay down drop cloths over the finished area, run a negative-air machine with HEPA filtration to capture airborne dust during agitation, and dispose of all debris off-site. The mastic we use is applied with brushes and rollers, not sprayed, so there’s no overspray. When we leave, the finished attic looks the way it did when we arrived, except your ducts are sealed and your manometer numbers are in writing.
Because each system has its own duct runs, plenum, return lines, and leak points. Sealing one system does nothing for the other two, and if a contractor quotes you a single flat price for a three-system house, they’re either doing one system and calling it done, or they’re pricing it high enough that the price itself hides what’s actually being done. Your three systems each get their own manometer test, their own sealing work, and their own documentation. That’s how you know all three were done. Call us at (682) 255-2572 and we’ll walk you through the current pricing for a multi-system Colleyville home.
At minimum, you should get four things: a written initial leakage measurement, a written post-seal leakage measurement for each system, before-and-after photos of the key leak points we found and repaired, and a copy of the 365-Day Done Right Promise in writing. We provide all four on every Colleyville job. If a contractor won’t document the work, you have no way to verify it was done. We show you the numbers and the photos because our reputation lives or dies on what’s actually sealed.
Yes, but not for the reason you might think. Colleyville’s mature oak and pecan trees drop a heavy pollen load every spring, and when your return ducts pull from attic or exterior wall cavities, that outside air bypasses your filter and carries pollen straight into the house. Sealing those return runs forces the system to pull air from the conditioned space through the filter, not from the pollen-filled attic. Sealing won’t replace filtration, but it stops unfiltered attic air from entering your living space. That makes a real difference for Colleyville homeowners dealing with spring allergens.
All accessible ductwork can be sealed; the question is how much is accessible. In a 1990s Colleyville home with a low attic, most of the trunk line and supply plenum are usually reachable, and that’s where the largest leaks live. Interior runs buried in walls or under slab are not accessible and shouldn’t be touched by anyone. We seal everything accessible, document what was sealed, and tell you plainly which sections of your system remain unverified. That honesty is part of the written report. For a free inspection of your specific home, call (682) 255-2572. Estimates are free and the written price is firm.
Get Your Colleyville Ducts Sealed Right the First Time
You’ve already paid to heat and cool the air in your home. You shouldn’t pay again because it’s leaking into your attic. Whether you’re off Hall-Johnson Road, near the Colleyville Nature Center, or anywhere in between, our crew knows these houses and the heat they fight every summer. Written price before we start. Before-and-after photos on the job. A leakage number you can see drop. And a full year of coverage under the 365-Day Done Right Promise, backed by Hollis Air Duct Fort Worth and the Garrison Standard. Call (682) 255-2572 now for a free estimate from a real person, 24/7. Roy Castellanos and the rest of our Colleyville crew are ready when you are.
Written by Roy Castellanos, Owner at Hollis Air Duct Fort Worth, serving Colleyville and the surrounding Tarrant County communities.