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 Grand Prairie
We’re the Duct Sealing crew that serves Grand Prairie from our Dallas-Fort Worth office, and we know this city’s homes inside out. From the postwar ranches in Dalworth to the newer builds in Lake Ridge, we’ve sealed ductwork in every corner of Grand Prairie, and we understand what the local climate and housing stock do to your system over time. Call us at (361) 326-5060 for a free estimate, and we’ll give you a written price before any work starts.
Why Hollis Air Duct Cleaning Is Grand Prairie’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our reputation in Grand Prairie is built on showing up when we said we would and leaving the site clean. Our technicians are background-checked and uniformed, and every job comes with our 365-Day Done Right Promise in writing. If the seal fails within a year, we come back and make it right at no charge, including a free second visit. Dispatch and scheduling are coordinated from our Dallas-Fort Worth office, but crews serve Grand Prairie locally, so we understand the specific problems this city’s homes face. Phones are answered by a live person 24 hours a day, seven days a week, no voicemail loops.
HVAC Duct Sealing in Grand Prairie
HVAC Duct Sealing in Grand Prairie is often the difference between a system that runs all day and one that actually cools your home. We seal supply and return trunk lines, plenum connections, boot-to-floor gaps, and flex duct joints using duct sealing mastic and mesh reinforcement, the same materials commercial crews rely on. In Grand Prairie’s market, a typical residential duct sealing job runs $450 – $1,200 depending on system size, accessibility, and whether we’re treating corrosion on older metal ductwork or sealing new flex runs in a Lake Ridge build.
Most Grand Prairie homeowners call us when rooms won’t hold temperature, energy bills spike during our May-to-September cooling season, or they notice dust blowing from registers even after a filter change. The city’s humid subtropical climate means your HVAC runs hard for months at a stretch, and every leak in unconditioned attic space forces the system to work longer and harder.
Sealing Original Galvanized Ductwork
Original galvanized steel ducts in 1960s and 1970s Grand Prairie homes, common in Dalworth and Burbank Gardens, rust at seams and joints over decades. We treat active corrosion, re-support sagging runs, then seal with mastic rated for metal substrates so the repair lasts.
Sealing Retrofitted Flex Systems
Many older homes near I-30 were retrofitted with flex duct without proper sealing at plenum connections. We remove and reseat those connections, seal with mastic and mesh, and verify with a smoke pencil so you stop pulling attic air into your living space.
Duct Repair in Grand Prairie
Duct Repair in Grand Prairie goes hand in hand with sealing because a crushed, disconnected, or corroded duct can’t be sealed until it’s structurally sound. We replace damaged flex runs, reconnect separated trunk lines, install proper supports to prevent future sagging, and repair corroded metal sections before sealing. Typical duct repair in Grand Prairie runs $300 – $850 for localized fixes, with full sectional replacement on larger systems reaching $1,100 – $1,800.
Homeowners in Burbank Gardens and Dalworth often need repair work before sealing can even begin. The original galvanized ductwork in these neighborhoods has had sixty-plus years to rust, separate at joints, and get crushed by decades of attic traffic or improper storage.
Crushed Run Replacement
Flex duct crushed behind drywall or under attic insulation restricts airflow and creates back pressure that separates joints upstream. We run new flex with proper support straps and seal the full length so air reaches the register it was meant for.
Corroded Metal Section Repair
When galvanized steel has rusted through, mastic alone won’t hold. We cut out the damaged section, fabricate a replacement from galvanized stock or transition to flex where appropriate, and seal the repair to restore system integrity.
Trusted Brands We Service in Grand Prairie
We carry equipment and filtration products from Honeywell, Aprilaire, and Abatement Technologies, the same brands commercial HVAC contractors specify, and we stock parts for common Grand Prairie systems so turnaround stays short. Our rotary brush systems and negative-air machines come from Rotobrush and Nikro, professional-grade tools, not hardware-store gear. When we seal your ducts, we use mastic and reinforcement mesh rated for the temperature swings your attic sees from May through September.
Common Duct Sealing Problems We See in Grand Prairie Homes
- Airport particulate infiltration through unsealed retrofitted runs. Grand Prairie’s position under DFW Airport and Grand Prairie Municipal Airport flight paths deposits ultrafine particulate that settles in ductwork. In older Dalworth and Burbank Gardens homes with unsealed flex retrofits, that particulate gets pulled straight into living spaces through gaps at plenum connections and boot seals.
- Rusted seams on original galvanized ductwork. The 1960s and 1970s ranch homes that define much of Grand Prairie’s older housing stock used galvanized steel that corrodes at every joint after sixty years. Sealing fails if you don’t first treat the rust and re-support sagging runs that have pulled apart under their own weight.
- Condensation and mold at unsealed attic joints. From May to September, Grand Prairie’s combination of 95-degree attic temperatures and 70% humidity means unsealed duct seams sweat continuously. That moisture feeds mold growth inside the duct, and a seal that ignores condensation control will fail within a single cooling season.
- Construction debris in new Lake Ridge and Westchester homes. Master-planned communities with flexible ductwork installed during construction often trap drywall dust, wood chips, and insulation fragments. Sealing without first removing that debris locks contaminants inside the system, so we always inspect and clean before we seal.
Pricing for Duct Sealing in Grand Prairie, TX
A typical residential duct sealing job in Grand Prairie runs $450 – $1,200. Smaller homes with accessible single-system attics fall at the lower end. Larger homes, multiple HVAC zones, or systems requiring corrosion treatment and structural repair before sealing run higher. Duct repair, when needed before sealing, adds $300 – $850 for localized fixes.
What moves the price: system size and zone count, attic accessibility, whether we’re sealing accessible joints or fishing through finished spaces, and whether the original ductwork needs repair before it can hold a seal. We give you one flat price per system, agreed in writing, before any work starts. No per-vent pricing, no add-ons at the door. Call (361) 326-5060 for a free estimate.
We Also Serve Cities Near Grand Prairie
Our crews work throughout the Dallas-Fort Worth metro, and we regularly schedule Duct Sealing in Grand Prairie alongside jobs in Euless, Duncanville, Bedford, and Hurst. Same standards, same written pricing, same 365-Day Done Right Promise in every city we serve.
Serving Grand Prairie, TX - Our Local Coverage Area
We’re based in the Grand Prairie 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 Grand Prairie
Most original galvanized ductwork in 1960s Grand Prairie homes can be sealed after we treat active corrosion and re-support sagging sections. Full replacement is only necessary when the metal has rusted through or the trunk line has collapsed. We inspect with a camera first, then give you a written price for repair and sealing before any work starts. Call (361) 326-5060 to schedule.
Yes. The ultrafine particulate from jet exhaust settles in Grand Prairie at higher concentrations than in surrounding cities, and it accumulates in ductwork over time. In homes with unsealed retrofitted runs, that particulate circulates through your living space every time the air handler runs. Sealing the duct system is the most effective way to stop that infiltration. We see the difference on camera inspections in Dalworth homes regularly.
Sealing is still needed, but never before cleaning. Construction debris in new Lake Ridge and Westchester homes, common with flexible duct installed during the build, restricts airflow and provides a surface for mold in Grand Prairie’s humid climate. We remove debris with a negative-air source removal clean, then seal joints so the system stays clean and operates at the efficiency the builder intended. One flat price for the full job, agreed in writing.
We use a camera inspection. Cleaning addresses debris inside the duct; sealing addresses leaks that let debris and unconditioned air in. In Grand Prairie, we often find both problems together, especially in older homes where rusted seams have opened and pulled in attic dust for decades. The camera shows us exactly what we’re dealing with, and we explain what we see before we quote any work. Call (361) 326-5060 for a free inspection.
Yes, typically by 15 – 30% depending on how leaky your system is. In Grand Prairie, where HVAC runs constantly from May to September, unsealed ducts in 140-degree attics force your system to cool replacement air it already conditioned once. Sealing those leaks means shorter run times, less wear on equipment, and lower bills during the months that matter most here. We document before-and-after airflow at the registers so you can see the improvement.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Grand Prairie since 2004.