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 Carrollton
We’re the crew Hollis Air Duct Cleaning dispatches to Carrollton from our Dallas-Fort Worth office, and we know the difference between a 1960s ranch near Josey Lane and a 2010s build off Hebron Parkway. Duct sealing in Carrollton typically runs $450 – $1,200 for a whole-home job depending on accessibility and duct material, and we price it in writing before we touch anything. Call (361) 326-5060 for a free estimate.
Carrollton’s hard water, aging housing stock, and brutal summer attic heat create sealing problems you won’t find in softer-water suburbs. We’ve resealed galvanized trunks in Downtown Carrollton that were leaking 20% of conditioned air into the attic, and we’ve replaced foil tape that turned to dust in a Trinity Mills attic after two July heat waves. Our technicians arrive uniformed, background-checked, and on time, because that’s The Garrison Standard.
Why Hollis Air Duct Cleaning Is Carrollton’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our Carrollton customers know we don’t quote one price on the phone and another at the door. Every job gets a written price before work starts and a 365-Day Done Right Promise in writing, if the seal fails within a year, we come back at no charge.
Our phones are answered by a live person 24 hours a day, seven days a week. No voicemail loops, no callback queues. When you schedule Duct Sealing in Carrollton, you get a technician who knows that Carrollton’s 75006 and 75007 ZIP codes cover everything from post-war ranches to new construction with vastly different duct systems.
We arrive inside the quoted window, price in writing, complete the job by the book, and leave the site clean. That’s The Garrison Code, and it’s how we operate on every Carrollton call.
Air Duct Sealing in Carrollton
Air Duct Sealing in Carrollton means finding and closing every gap, joint, and seam where conditioned air escapes before it reaches your rooms. In a city with Carrollton’s combination of hard-water mineral dust, 1960s-1990s housing stock, and attic temperatures that top 140°F in July, unsealed ducts don’t just waste money, they pull contaminants into the air you breathe. A typical whole-home Air Duct Sealing job in Carrollton runs $450 – $1,200, with most single-story ranches falling in the $550 – $850 range.
Galvanized Trunk Restoration
Original 1970s galvanized supply trunks in neighborhoods like Trinity Mills and Downtown Carrollton were installed with slip joints that were never sealed at the factory. We camera-inspect the run, clean the joint faces, and apply duct mastic with reinforcing mesh, a permanent fix that foil tape can’t match.
Flex Duct Repair and Support
Older two-story traditional houses in Carrollton often have flex duct runs that were over-stretched during original installation. The duct crushes behind walls, strains the tape at connections, and weeps conditioned air before the seal ever cures. We replace damaged sections and install proper support straps.
Duct Sealing Services in Carrollton
Duct Sealing Services in Carrollton cover everything from spot repairs on a single leaking joint to complete system resealing for homes with original 1970s infrastructure. Because Carrollton’s water supply is notably hard, the mineral scale that coats interior plumbing also ends up as fine calcium dust pulled into return ducts, where it binds with pollen and dryer lint instead of blowing through like it would in a softer-water suburb. This gritty buildup accelerates tape failure and erodes mastic at joints. Most Carrollton homeowners need Duct Sealing Services every 5 – 8 years for older galvanized systems, or 10 – 15 years for modern flex duct with proper original installation.
Return Duct Sealing
Return ducts operate under negative pressure, so every leak pulls attic dust, insulation fibers, and hot humid air directly into your breathing space. We were at a 1970s ranch in Trinity Mills where the original galvanized supply trunks had rubbed through the insulation on the return, so every time the air handler kicked on the blower motor pulled attic dust through the loose seams. We camera-inspected the run, sealed the joints with mastic and mesh, and the homeowner stopped seeing black streaks on the registers within a week.
Supply Run Integrity Testing
We pressurize supply ducts and measure static pressure loss to find leaks you can’t see from the register. In Carrollton’s newer energy-efficient homes, tight duct systems require this precision approach to avoid damage during the sealing process.
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.
Trusted Brands We Service in Carrollton
Our Duct Sealing crews carry professional-grade equipment from Nikro and Abatement Technologies, and we stock filtration products from Honeywell and Aprilaire for Carrollton customers who want to complete the job with upgraded air cleaning. We don’t use hardware-store foil tape or caulk guns, we apply mastic and mesh with the same tools commercial HVAC crews use on DFW medical and office buildings. Parts and materials are stocked locally, so if your Carrollton home needs a specialized fitting or adapter for an older system, we can usually source it without stretching the job across multiple days.
Common Duct Sealing Problems We See in Carrollton Homes
- Original 1970s galvanized trunks in Downtown Carrollton and Trinity Mills have slip joints that were never sealed. Humidity plus hard-water mineral dust collects in the gaps and gradually erodes the mastic in a year or two, so even a previous sealing job may need revisiting.
- Flex duct runs in older two-story traditional houses tend to be over-stretched and crushed behind walls. The tape weeps air before the seal ever cures, and the restriction raises static pressure until the blower motor strains and fails prematurely.
- Attic temperatures over 140°F in July can soften cheap foil tapes on Carrollton’s older supply runs. The seal fails silently even when the ducts look intact from the register, so homeowners don’t realize they’re cooling their attic until the electric bill arrives.
- Hard-water mineral scale binds with pollen and dryer lint in return ducts. This gritty accumulation grinds against tape adhesives and creates channels in mastic that reopen after a few seasons of thermal cycling.
Pricing for Duct Sealing in Carrollton, TX
A typical whole-home duct sealing in Carrollton runs $450 – $1,200. Single-story ranches with accessible attics usually fall at $550 – $850. Two-story homes with original galvanized trunk-and-branch systems, or jobs requiring extensive flex duct replacement, trend toward $950 – $1,200. What moves the price: duct material (galvanized steel takes longer to prep than flex), attic accessibility, the number of joints to seal, and whether we find crushed or disconnected runs that need repair before sealing.
We give one flat price per system, agreed in writing before work starts. No per-vent pricing, no add-ons at the door. You’ll see before-and-after photos of your own ducts, and you’ll know exactly what you paid for. Call (361) 326-5060 for a free estimate, estimates are free and carry no obligation.
We Also Serve Cities Near Carrollton
Our crews regularly work in Carrollton and the surrounding communities: Addison, Coppell, Richardson, and Lewisville. Same written pricing, same 365-Day Done Right Promise, same live-answer scheduling in every market we serve.
Serving Carrollton, TX - Our Local Coverage Area
We’re based in the Carrollton 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 Carrollton
Every 5 – 8 years for original 1970s galvanized systems in neighborhoods like Trinity Mills and Downtown Carrollton. The combination of hard-water mineral dust, humid summers, and thermal cycling in 140°F attics degrades mastic faster than in newer suburbs with softer water and flex duct. Call (361) 326-5060 and we’ll camera-inspect your system to give you a specific interval.
Yes. Carrollton’s notably hard water supply creates fine calcium dust that coats interior plumbing and gets pulled into return ducts, where it binds with pollen and lint into a gritty compound that grinds against seals. This mineral-rich dust is unusual in neighboring cities with softer water, and it’s why we use reinforced mastic instead of tape on most Carrollton jobs. Call (361) 326-5060 for an inspection.
It can, if the smell is coming from humid attic air pulled through leaky return ducts. Carrollton’s humid subtropical climate means August attic air can hold enough moisture to sustain mold on duct insulation. Sealing the return path stops that infiltration, though existing mold may need remediation first. Call (361) 326-5060 and we’ll determine the source.
Every 4 – 6 years. Wood stoves create positive pressure in living spaces that forces air through any duct leak, and the fine ash particulate accelerates seal degradation. In Carrollton’s hard-water environment, that ash mixes with mineral dust into an especially abrasive compound. We inspect several Trinity Mills ranches with wood heat annually and reseal on this schedule. Call (361) 326-5060 to set up a maintenance plan.
Yes, we seal ductwork in detached shops, garage workshops, and outbuildings throughout Carrollton’s semi-rural properties. These systems often use lighter-gauge flex duct or DIY installations that fail faster than residential code-built systems. We apply the same written pricing and 365-Day Done Right Promise to outbuilding work. Call (361) 326-5060 to describe your setup and get a range.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Carrollton since 2004 as part of the Garrison Partners family.