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 Westminster
Westminster homeowners with leaky ductwork are paying to heat and cool their attics, not their living rooms. In a city where most houses were built between the 1950s and 1980s with galvanized steel or early flex duct that was never properly sealed, that waste adds up fast. We’re Hollis Air Duct Cleaning, and our Duct Sealing crews work Westminster regularly, dispatching from our Dallas-Fort Worth office to handle jobs from Little Saigon to the older ranch tracts near Westminster Boulevard. Call us at (361) 326-5060 for a free written estimate.
Why Hollis Air Duct Cleaning Is Westminster’s Preferred Duct Sealing Company
We’ve been sealing ducts in Westminster long enough to know the difference between a 1960s ranch on Brookhurst Street and a 1980s two-story near Magnolia High School. The duct systems are different, the attic access is different, and the problems are different. Our technicians arrive uniformed, background-checked, and on time, because that’s what The Garrison Standard requires. Every job gets a written price before we touch anything, and our 365-Day Done Right Promise means if the seal fails within a year, we come back and fix it at no charge, including a free second visit. Westminster customers can reach a live person 24 hours a day, 7 days a week, no voicemail loops. Phones are answered by a live person, 24/7.
Duct Repair in Westminster
Duct Repair in Westminster usually means fixing sections of galvanized steel or early flex duct that have corroded, separated at joints, or been damaged by rodents in the attic. Most Westminster homes were built with undersized ductwork that runs harder and longer than it was designed for, so cracks and disconnections are common by the time we see them. A typical duct repair in Westminster runs $280 – $520 depending on how many sections need replacement and whether we can access the damage from the attic or need to open a ceiling.
Corroded Galvanized Steel
Original steel duct in Westminster’s 1950s – 70s homes rusts from the inside out, especially near humid kitchen exhausts. We cut out the damaged section and splice in new metal with sealed joints that won’t leak.
Flex Duct Collapses and Kinks
Early flex duct in Westminster’s 1980s tracts often sags or gets crushed by storage items in attics. We replace the run with properly supported modern flex or rigid duct, sized correctly for the airflow that room needs.
Air Duct Sealing in Westminster
Air Duct Sealing in Westminster closes the gaps and leaks that let conditioned air escape into attics and crawl spaces. In a city where dense lot spacing means shared attic air can carry cooking odors between homes, proper sealing does more than save money on your energy bill. It keeps your air in your house. A typical whole-system air duct sealing in Westminster runs $1,200 – $2,400 for an average single-story home, with two-story homes or systems with extensive flex duct replacement toward the higher end.
Mastic Sealant Application
We brush thick mastic sealant onto every joint and seam in your metal ductwork. Unlike tape, which dries and falls off, mastic stays flexible and seals permanently, even through Westminster’s temperature swings between summer attic heat and winter heating cycles.
Our crews use mastic rated for commercial applications, applied to bare metal after we remove old, failing tape. The result is a seal that holds pressure and doesn’t degrade.
Aeroseal Injection Method
For systems where physical access is limited, we can pressurize the ductwork and inject polymer sealant particles that bond to leak edges from the inside. This finds and seals leaks we couldn’t reach with a brush, including gaps inside walls or between floors.
Trusted Brands We Service in Westminster
We carry filtration and sealing products from Honeywell, Aprilaire, and Guardsman, and our equipment roster includes Rotobrush rotary brush systems and Nikro negative-air machines. For Westminster customers, that means we don’t need to order parts and make you wait. We stock the mastic, the metal, the flex duct, and the fittings that match what was originally installed in your neighborhood. Most jobs are completed in a single visit because our vans are loaded for the housing stock we know we’ll find here.
Common Duct Sealing Problems We See in Westminster Homes
- Original ductwork never sealed at construction. Westminster’s tract homes from the 1960s through 1980s were built with ducts that were simply joined and taped, not mastic-sealed. The tape dries out in attic heat, and leaks develop at every joint within 15 – 20 years.
- Grease-coated ducts in Little Saigon kitchens. Heavy year-round cooking with fish sauce, frying, and charcoal grilling coats duct interiors with residue that breaks down tape adhesive and corrodes metal seams faster than typical residential use.
- Santa Ana wind dust infiltration through return leaks. When those hot, dry winds blow fine dust and ash through Westminster, unsealed return ducts suck it straight into your system and redistribute it through every room.
- Shared attic spaces transferring odors between units. Westminster’s dense lot spacing means a leaky duct in one home can pull air from a neighbor’s attic, carrying cooking smells or allergens through your vents even when your system is off.
Pricing for Duct Sealing in Westminster, TX
A typical whole-system duct sealing in Westminster runs $1,200 – $2,400. Spot repairs to specific leaking sections run $280 – $520. What moves you within those ranges: how much of your system is original galvanized steel versus flex duct, whether we need to replace sections rather than seal them, and how accessible your attic or crawl space is. Two-story homes with ductwork between floors cost more because we need to access more locations. We give you one flat price per system, agreed in writing before any work starts. No per-vent pricing, no add-ons once the van is in your driveway. Estimates are free. Call (361) 326-5060.
We Also Serve Cities Near Westminster
Our crews handle Duct Sealing in Westminster and the surrounding communities of Anna, Van Alstyne, Melissa, and McKinney. If you’re in one of these areas and your ducts are leaking, we apply the same written pricing and 365-Day Done Right Promise. We also offer Air Duct Cleaning in Westminster and Dryer Vent Cleaning in Westminster for homeowners who want their full system handled in one visit.
Serving Westminster, TX - Our Local Coverage Area
We’re based in the Westminster 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 Westminster
We typically schedule Westminster duct sealing within 2 – 4 business days, with dispatch coordinated from our Dallas-Fort Worth office. Call (361) 326-5060 to check current availability.
Yes, we seal ducts throughout Westminster including Little Saigon, the older ranch tracts near Westminster Boulevard, and the two-story developments around Magnolia High School. Each area has different duct construction, and we come prepared for what we’ll find.
We don’t classify duct sealing as an emergency service, but our phones are answered by a live person 24/7. If a disconnected duct is blowing conditioned air into your attic and spiking your energy bill, we’ll prioritize getting a crew out quickly.
Westminster pricing is comparable to Anna and Van Alstyne, though homes in Little Saigon sometimes need additional degreasing before sealing, which can add $150 – $300. We disclose any additional need in your written estimate before work begins.
Every duct sealing job is covered by our 365-Day Done Right Promise. If any sealed joint leaks within a year, we return and reseal it at no charge, including a free second visit. The warranty is backed in writing on every job, not promised verbally and forgotten.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Westminster and the Dallas-Fort Worth area since 2004.