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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Before
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Before
AfterFast, Reliable Duct Sealing Across Hitchcock
Duct sealing in Hitchcock typically runs $350 – $850 for a whole-home system, with most jobs completed in a single visit and priced in writing before we start. We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and we’ve been sealing leaking ductwork since 2004. Our dispatch team coordinates from our Houston office, but our crews live and work in the Hitchcock area, so we know the difference between a 1950s ranch near Bayou Vista and a bayfront cottage on the western shore of Galveston Bay. Call us at (361) 326-5060 for a free, written estimate.
Hitchcock’s location right on Galveston Bay’s western shore creates a unique stress on residential duct systems. The subtropical humidity here is relentless, and when your ducts leak, they’re not just losing conditioned air. They’re pulling in that heavy, moisture-laden bay air through every gap and seam. In older homes near FM 2004 or along Highway 6, we’ve found duct leakage rates of 25 – 40 percent, which means a quarter to nearly half the air your AC produces never reaches your vents. Instead, it’s cooling your attic or crawlspace while your electric meter spins. Our Duct Sealing team uses professional-grade mastic and metal-backed tape, not the hardware-store foil tape that peels off in Hitchcock’s humidity within a season or two.
Why Hollis Air Duct Cleaning Is Hitchcock’s Preferred Duct Sealing Company
We’ve been called to homes throughout Hitchcock, from the established neighborhoods near Hitchcock High School to the bayfront properties along Boddeker Road. Our technicians know what to expect when they open an attic hatch here: flex duct from the 1970s or 1980s, often brittle from heat exposure, with gaps at the plenum connections where bay humidity has degraded the seals. That local familiarity means we diagnose faster and quote accurately the first time.
Our customers in Hitchcock tell us the same thing repeatedly: they chose us because our price didn’t change when the technician arrived. Every Hollis job starts with a written price, signed by the homeowner and the technician, before any work begins. No surprises, no upsells, no “we found something else” conversations at the door. The Garrison Standard requires it.
Our crews are background-checked and uniformed, and you’ll know who’s coming before they knock. Phones are answered by a live person 24 hours a day, 7 days a week, so you can schedule around your own hours, not ours. And every repair we make is backed by our 365-Day Done Right Promise: if the seal fails within a year, we return and make it right at no charge, including a free second visit.
Duct Insulation in Hitchcock
Duct Insulation in Hitchcock addresses a problem most homeowners don’t know they have until their summer electric bill arrives. In this market, we’re insulating attic and crawlspace duct runs that have lost their original fiberglass wrap to time, moisture, or rodent damage. Without proper insulation, your cooled air gains 10 – 20 degrees of temperature before it reaches your vents, which forces your AC to run longer and harder in Hitchcock’s brutal July and August heat. A typical duct insulation job here runs $400 – $900 depending on linear footage and accessibility.
When Insulation Beats Sealing Alone
Some Hitchcock homes need both sealing and insulation, but others only need the wrap replaced. We see this often in pier-and-beam cottages near the bay, where crawlspace humidity has saturated the fiberglass jacket without necessarily breaking the duct seams. Our technician will test airflow and temperature drop at each vent to tell you which problem you actually have.
Materials That Survive the Coast
We use closed-cell foam and fiberglass wraps rated for Gulf Coast conditions, not the bargain products that collapse after one humid summer. For filtration upgrades paired with insulation work, we stock Honeywell and Aprilaire products with local availability for fast turnaround.
HVAC Duct Sealing in Hitchcock
HVAC Duct Sealing in Hitchcock is the core fix for the pressure imbalances and energy waste that plague coastal homes. We seal the supply and return plenums, register boots, and longitudinal seams of metal or flex duct using duct mastic, a thick, paintable sealant that remains flexible for decades, reinforced with mesh on larger gaps. For a typical 1,500 – 2,500 square foot Hitchcock home, expect $350 – $850 for full-system sealing, with larger homes or complex attic layouts running higher.
Pressure Testing Before and After
We run a duct blaster test when possible to measure leakage in CFM25, cubic feet per minute at 25 Pascals of pressure. Most Hitchcock homes we test start at 20 – 35 percent leakage and finish below 5 percent, which is the threshold recommended by the Department of Energy for climate zones like ours.
Post-Storm Priority Sealing
After hurricane season, we prioritize calls from Hitchcock homeowners whose ducts have shifted or separated due to roof loading or minor flooding. Salt-laden air enters through new gaps and accelerates corrosion in metal components. Sealing promptly prevents the cascade of mold and efficiency loss that follows.
Trusted Brands We Service in Hitchcock
Our trucks carry professional-grade equipment from Nikro and Abatement Technologies, the same negative-air machines and rotary brush systems used in commercial buildings across the Gulf Coast. For homeowners in Hitchcock who need filtration upgrades alongside sealing work, we stock Honeywell and Aprilaire media filters and electronic air cleaners. Parts are available through our Houston-area supply chain, so we’re not waiting on shipping when your system needs attention. We also handle Air Duct Cleaning in Hitchcock and Dryer Vent Cleaning in Hitchcock using the same professional equipment and the same written pricing standard.
Common Duct Sealing Problems We See in Hitchcock Homes
- Failed flex duct connections at the plenum. In Hitchcock’s 1960s – 1980s ranch homes near I-45, the original plastic collars have hardened and cracked. Bay heat in attics reaches 140 degrees in August, and that thermal cycling destroys the mechanical connections while the homeowner only notices weak airflow in distant rooms.
- Rodent damage in crawlspaces. Pier-and-beam construction throughout Hitchcock’s older neighborhoods leaves flex duct exposed. We’ve pulled nests from ducts near Bayou Vista and found entire sections chewed through, requiring sealing of the new replacement runs plus screening of entry points.
- Salt corrosion on metal register boots. Homes within a mile of Galveston Bay pull salt-laden air through attic vents. Over years, the galvanized steel boots rust at the seams, creating leaks that mastic can seal but only after surface prep. We see this pattern repeatedly in bayfront properties along Boddeker Road.
- Post-hurricane duct separation. After Ike in 2008 and subsequent tropical systems, Hitchcock homes experienced duct displacement from roof deck movement and water intrusion. Even where ducts look intact, the storm stress creates micro-gaps at joints that a duct blaster test reveals and mastic sealing resolves.
Pricing for Duct Sealing in Hitchcock, TX
Whole-home duct sealing in Hitchcock runs $350 – $850 for most single-family residences, with the final price depending on total linear footage, attic or crawlspace accessibility, and whether we’re sealing existing accessible ductwork or repairing damage first. Duct insulation replacement, when needed, adds $400 – $900. We do not quote per-vent prices, and we do not offer teaser coupons that balloon at the door. The price we write down before work starts is the price you pay. Every estimate is free, and we’ll explain exactly what we’re sealing, what materials we’re using, and what result you should expect. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Hitchcock
Our crews work throughout the Galveston Bay area, including Hitchcock and neighboring communities. We regularly schedule jobs in La Marque, Texas City, Santa Fe, and Dickinson from the same dispatch operation, so if you live just outside Hitchcock city limits, we can still get to you with the same written pricing and the same 365-Day Done Right Promise.
Serving Hitchcock, TX - Our Local Coverage Area
We’re based in the Hitchcock 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 Hitchcock
We typically schedule duct sealing appointments within 3 – 5 business days for Hitchcock residents, with some flexibility for urgent post-storm situations. Call (361) 326-5060 to check current availability and book a free estimate.
Yes, we seal ducts throughout Hitchcock, from the bayfront properties near Boddeker Road to the established neighborhoods around Hitchcock High School and the newer developments along FM 2004. Our technicians know the local housing stock and common duct configurations in each area.
We answer calls live 24 hours a day, 7 days a week, and we prioritize urgent situations such as post-hurricane damage or complete system failure due to duct separation. For true emergencies, we’ll get a crew to your Hitchcock home as soon as possible, though most standard sealing jobs are scheduled within our normal booking window.
Pricing is consistent across our service area, but Hitchcock’s coastal conditions sometimes require additional steps, such as corrosion prep on salt-damaged metal components or mold remediation before sealing can begin. These factors can push some Hitchcock jobs toward the higher end of our $350 – $850 range compared to inland homes in Santa Fe or Dickinson with similar square footage.
Every duct sealing job we complete in Hitchcock is covered by our 365-Day Done Right Promise in writing. If any sealed joint fails within one year of service, we return and repair it at no charge, including a free second visit. This is not a vague satisfaction guarantee; it’s a specific, dated commitment signed by both parties before work begins.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Hitchcock and the greater Galveston Bay area since 2004.