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 Mission Bend
We’re the crew Hollis Air Duct Cleaning sends to Mission Bend when a homeowner’s AC runs all day but the upstairs bedrooms stay stuffy, or when the utility bill jumps and nobody can figure out why. Dispatch and scheduling run through our Houston office, but our trucks roll into Mission Bend every day of the week. We know the area: the winding streets off Bellaire Boulevard, the older sections near Eldridge Road where the 1980s builds sit, the newer pockets closer to the Grand Parkway corridor. If you’re in Mission Bend and your ducts are leaking, call us at (361) 326-5060. We’ll give you a written price before we touch anything, and every seal we do carries our 365-Day Done Right Promise.
Why Hollis Air Duct Cleaning Is Mission Bend’s Preferred Duct Sealing Company
We’ve been working in Mission Bend long enough to know what the housing stock looks like underneath the drywall. The Garrison Standard means our technicians arrive inside the quoted window, in uniform, with background checks you can verify. We don’t give estimates that balloon once we’re inside. The price is written down before any work starts, and it doesn’t move at the door.
Our 365-Day Done Right Promise covers every duct sealing job in writing: if the seal fails or the leak returns within a year, we come back and make it right at no charge, including a free second visit. That’s not a verbal assurance. It’s on the paperwork.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday to schedule.
HVAC Duct Sealing in Mission Bend
HVAC Duct Sealing in Mission Bend starts with finding the leaks, not slapping mastic on every joint and hoping for the best. The typical home here was built in the 1980s or 1990s with builder-grade flexible duct that sags, crushes, and disconnects in the attic. Most of our calls aren’t for a simple re-seal. They’re leak-location jobs where the seal is the last step, not the first.
A homeowner in Mission Bend usually needs duct sealing when rooms won’t hold temperature, dust blows from registers even after cleaning, or the energy bill climbs without explanation. We see this constantly in subdivisions like Mission Glen and Mission West, where original flex duct has passed its useful life. Typical HVAC duct sealing in Mission Bend runs $450 – $850 for a whole-house seal after leak repair, depending on how many runs need attention and whether we need to replace crushed sections.
Leak Detection Before Sealing
We pressurize the system and use smoke pencils or theatrical fog to find every breach, including the ones hidden behind soffits and in tight attic chases. A crew that only seals what’s visible at the plenum misses the worst leaks. We don’t.
Mastic Seal vs. Tape
Builder-grade tape fails at duct collars within a season or two in Mission Bend’s heat and humidity. We seal with mastic compound rated for the temperature swing, applied under negative pressure with HEPA filtration running. It holds.
Duct Repair in Mission Bend
Duct Repair in Mission Bend often means fixing what decades of attic heat and humidity have destroyed. The flex duct connectors in these homes were originally taped, not mastic-sealed, so they pull apart and draw hot, humid attic air straight into the supply side. Long cooling seasons keep the air handler running almost continuously, which means any unsealed joint stays damp and becomes a biological-growth site rather than just a dust leak.
We replace crushed or sagging runs, reconnect detached joints, and reinforce chases where the original support straps have failed. Typical duct repair in Mission Bend runs $280 – $620 per run, with whole-system replacement of deteriorated flex duct running $1,200 – $2,400 depending on home size and attic access. Every repair gets sealed before we close up.
Crushed Flex Run Replacement
Flex duct behind soffits and in tight chases gets compressed by insulation or its own weight over time. We pull new runs where needed, properly supported, with the correct bend radius so air flows freely.
Post-Storm Water Damage
After Hurricane Harvey inundated nearby Fort Bend County, we started finding water-damaged, moldy ductwork in Mission Bend homes that looked fine from the outside. The tell is a musty smell every time the AC kicks on. We inspect for this on every call.
Trusted Brands We Service in Mission Bend
Our trucks carry professional-grade equipment from Nikro and Abatement Technologies, and we stock filtration products from Honeywell and Aprilaire for Mission Bend customers who want cleaner air after the seal is done. We don’t use hardware-store gear. The rotary brush systems and negative-air machines we run are the same tools commercial crews use, and we explain what each one does while we’re working. Parts for common Mission Bend systems are on the truck, so most jobs don’t wait for a supply-house run. If your system needs a specific Honeywell media filter or an Aprilaire upgrade after we seal, we can handle it same visit.
Common Duct Sealing Problems We See in Mission Bend Homes
- Failed tape at flex duct collars. Original builder tape dries and peels in Mission Bend’s attic heat, pulling hot humid air into the supply stream. We find this on almost every 1980s – 1990s home we open.
- Crushed runs in tight attic chases. Flex duct was never meant to be compressed into soffits or buried under insulation. Airflow drops, back pressure rises, and the system runs longer to compensate.
- Disconnected joints feeding upper floors. In two-story Mission Bend homes, the longest runs to the second floor are the first to separate at couplings. The bedrooms stay warm while the thermostat downstairs reads normal.
- Biological growth at chronic leak sites. Mission Bend’s humid subtropical climate means any unsealed joint stays damp through the long cooling season. We find mold and mildew at these spots, not just dust.
Pricing for Duct Sealing in Mission Bend, TX
Duct sealing in Mission Bend typically runs $450 – $850 for a whole-house seal after leak location and repair, with individual duct repair at $280 – $620 per run. Whole-system flex duct replacement in larger homes can reach $1,200 – $2,400. What moves the price: how many runs are damaged, whether attic access is open or restricted, if we need to replace crushed sections rather than just seal, and whether post-storm water damage requires remediation 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 the number on paper before we touch the equipment. Estimates are free. Call (361) 326-5060 and we’ll schedule a look.
We Also Serve Cities Near Mission Bend
Our crews work throughout the Houston metro and beyond. We also provide Duct Sealing in Houston, San Antonio, Dallas, and Fort Worth. Every location runs on The Garrison Standard: written price, written guarantee, job done by the book. If you’re in Mission Bend or any of these surrounding markets, the same rules apply.
Serving Mission Bend, TX - Our Local Coverage Area
We’re based in the Mission Bend 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 Mission Bend
Mission Bend’s 1980s – 1990s tract homes were built with builder-grade flex duct that sags, crushes, and disconnects in the attic, so most of our calls here are really leak-location jobs where the seal is the last step, not the first. Cleaning alone won’t fix airflow if the duct is crushed or pulling attic air through a gap. Call (361) 326-5060 for a free inspection and we’ll show you exactly what’s happening in your system.
Yes, a musty odor at startup often means unsealed joints are pulling damp attic air or biological growth into the supply stream, which is common in Mission Bend’s humid climate with long cooling seasons. After Hurricane Harvey, we also find water-damaged ductwork in homes that look fine from the outside. We run camera inspection to locate the source before we seal. Call (361) 326-5060 to schedule.
We can seal ducts in shared-stack buildings when we have access to the unit’s portion of the system and coordination with building management for common areas. Many Mission Bend apartments and condos have duct runs through shared walls or chases, so we inspect the full path and document what we can access versus what requires the building’s contractor. Call (361) 326-5060 and we’ll walk through the specifics of your building.
We inspect the full length with a camera, clean from both ends where accessible, and document any damage that needs the building’s attention. Shared-stack dryer vents in Mission Bend’s denser developments are a fire hazard when lint builds up in the horizontal runs between units. We clear what we can reach and flag what we can’t for your HOA or property manager. Call (361) 326-5060 to book an inspection.
We seal the return plenum, supply plenum, and all accessible connections at the air handler, because leaks at the unit can waste as much conditioned air as leaks in the duct runs themselves. The blower compartment itself is a service access point and isn’t sealed shut, but every joint where the cabinet meets the ductwork gets mastic. Call (361) 326-5060 for a free estimate on full-system sealing.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Mission Bend since 2004.