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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Sealing Across Anna
Most Anna homeowners with a newer house don’t expect duct problems this early. We’re Hollis Air Duct Cleaning, and we’ve sealed ducts across Anna Ranch, Lakeview Estates, and the newer build-outs along FM 455. Our crews dispatch from our Dallas-Fort Worth office and carry mastic, foil tape, and HEPA vacuums stocked for the flex-duct systems that dominate Anna’s post-2000 housing stock. If your vents blow dusty air, your rooms heat unevenly, or your energy bill climbed after the first summer, call us at (361) 326-5060. We’ll give you a written price before any work starts, and every seal is covered for 365 days.
Why Hollis Air Duct Cleaning Is Anna’s Preferred Duct Sealing Company
Anna’s growth has outpaced most of Collin County, and we’ve kept pace with it. Our Duct Sealing team knows the difference between a 2005 build in the original town grid and a 2023 slab-on-grade in Anna Ranch with second-story duct chases shared with plumbing. That matters because the sealing approach changes.
We run on The Garrison Standard: arrive inside the quoted window, price in writing, complete the job by the book, leave the site clean. Our technicians are background-checked and uniformed, and our phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues.
The 365-Day Done Right Promise backs every seal we apply in Anna. If a seam opens or a mastic bond fails within a year, we return and make it right at no charge, including a free second visit. That’s written down, not implied.
Air Duct Sealing in Anna
Air Duct Sealing in Anna addresses the leaks, gaps, and failed bonds in your HVAC ductwork that let conditioned air escape before it reaches your rooms. In a market where most homes were built after 2000, we see a specific pattern: builder-grade flexible ductwork with foil-wrapped insulation, installed fast, often with seams that loosen under static pressure or mastic applied over construction dust that never bonded properly.
You need sealing when rooms won’t hold temperature, when your blower runs longer than it should, or when your filter loads with fine dust in weeks instead of months. In Anna, we also see homeowners call after their first full summer, when 100°F days exposed how much cooled air was bleeding into attics and wall cavities.
A typical whole-system duct sealing job in Anna runs $450 – $850 for a single-family home up to 2,500 square feet. Larger homes, second-story systems with shared chases, or jobs requiring blower motor cleanup fall toward the higher end. We price by the system, not by the vent, and we write it down before we touch anything.
Post-Construction Sealing for New Anna Homes
New doesn’t mean sealed right. In Lakeview Estates and the newer Anna Ranch phases, we’ve found drywall debris and Blackland Prairie clay dust coating the inside of flex duct before homeowners unpack. That dust is ultrafine and statically attracted to foil wrap. Mastic applied over it fails to bond. Our process starts with HEPA vacuuming under negative pressure, then mastic application to clean seams.
Shared-Chase Remediation
Slab-on-grade homes with second-story HVAC runs often squeeze supply and return ducts into chases shared with plumbing. Construction debris falls in. It abrades flex duct. It opens leaks after the builder’s original seal. We camera-inspect these runs, remove debris, and seal with the chase geometry in mind.
Duct Sealing Services in Anna
Duct Sealing Services in Anna from Hollis cover inspection, leak detection, surface preparation, mastic application, and post-seal verification. We don’t guess where your leaks are. Our techs use pressure testing and visual inspection to map loss points, then clean before sealing so the bond holds.
Anna’s housing stock drives our method. The flexible ductwork in subdivisions like Anna Ranch and Lakeview Estates doesn’t tolerate the same techniques as rigid metal ducts in 1980s construction. Foil wrap tears. Thin insulation compresses. Seams shift as the duct flexes under pressure. We use mastic rated for flexible duct, applied with proper cure time, reinforced with foil tape where the manufacturer calls for it.
Most Anna homeowners schedule sealing after two to three years in a new home, once construction dust has settled and the HVAC system has cycled enough to expose weak points. If you’re seeing dust accumulation around vents, hot or cold spots, or a blower that never seems to rest, it’s time to inspect.
Static Pressure Recovery
Leaky ducts drop static pressure. Your blower works harder. Rooms at the end of the run starve. We measure pressure before and after sealing, and we show you the numbers. In Anna’s 100°F summers, recovered static pressure means your system reaches setpoint faster and cycles less.
Blower Motor Cleanup and Protection
Fine Blackland clay dust doesn’t stay in ducts. It reaches the blower motor. It pits squirrel-cage fans. Homeowners hear noise and blame the HVAC unit. We clean the blower as part of our sealing protocol when needed, so you’re not sealing ducts while the motor circulates dust back through them.
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 Anna
Our Anna crews carry professional-grade equipment, not hardware-store gear. We stock mastic and sealants from Abatement Technologies, HEPA filtration and vacuum systems from Nikro, and rotary brush systems from Rotobrush for pre-seal cleaning. For homeowners upgrading filtration after sealing, we source Honeywell and Aprilaire media. We keep common flex-duct repair materials on the van, so most Anna jobs finish in one visit without waiting on parts. If your system uses a specific brand of foil tape or insulation wrap, we match it.
Common Duct Sealing Problems We See in Anna Homes
- Mastic failure over construction dust. Anna’s Blackland Prairie clay dust is ultrafine and statically attracted to foil-wrapped flex duct. When builders apply mastic over this conductive film, it never bonds properly. We see this in homes from 2019 to 2024. The fix is HEPA vacuuming before any sealant touches the seam.
- Shared plumbing chases abrading flex duct. Second-story runs in Anna’s slab-on-grade homes often share chases with PVC plumbing. Construction debris collects. It rubs against duct walls. Seams open after the original seal. We camera-inspect these chases and remove debris before sealing.
- Pitted blower motors masking duct leaks. Fine clay dust reaches the squirrel-cage fan. It pits the aluminum. The motor runs loud and moves less air. Homeowners replace the unit when sealing and cleanup would solve it. We check the blower on every sealing job.
- Seasonal thermal cycling loosening builder-grade seams. Anna’s Zone 8a climate swings from hard freezes to 100°F days. Flexible duct expands and contracts. Cheap mastic cracks. We use flexible-duct-rated compounds with proper cure times, not the fast-dry stuff builders favor.
Pricing for Duct Sealing in Anna, TX
Whole-system duct sealing in Anna typically runs $450 – $850 for homes up to 2,500 square feet. Homes between 2,500 and 4,000 square feet, or those with second-story systems and shared chases, range $750 – $1,400. These are flat prices per system, agreed in writing before work begins. No per-vent add-ons. No surprises at the door.
What moves the price: the amount of flex duct involved, whether we need to clean construction debris before sealing, if the blower motor requires cleanup, and accessibility of attic or chase runs. We inspect first, price second, and seal third. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Anna
Our Duct Sealing in Anna crews also work in Melissa, Van Alstyne, Westminster, and McKinney. The same written pricing, same 365-Day Done Right Promise, same background-checked technicians apply across our north Collin County service area.
Serving Anna, TX - Our Local Coverage Area
We’re based in the Anna 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 Anna
Builder-grade flex duct in Anna is often sealed with mastic applied over construction dust, and the Blackland Prairie clay dust here is fine enough to prevent proper bonding. Within two to three years, thermal cycling and static pressure open those seams. Call (361) 326-5060 for a free inspection if your rooms heat unevenly or your filter loads fast.
Anna’s Blackland Prairie clay dust is ultrafine and statically attracted to foil-wrapped flex duct, so post-construction duct sealing here must remediate conductive dust films on seams before mastic will bond. Older, denser suburbs with rigid metal duct and settled construction rarely need this step. Our Anna process includes HEPA vacuuming under negative pressure as standard prep.
Duct sealing alone won’t clean a blower motor, but our sealing protocol includes blower inspection and cleanup when we find pitted, dusty squirrel-cage fans. In Anna, fine clay dust pulled through leaky return ducts commonly causes this. We address both the leak source and the contamination result.
We use Abatement Technologies sealants, Nikro HEPA vacuum systems, and Rotobrush rotary cleaning equipment for pre-seal prep. Foil tape and mastic are matched to your duct manufacturer’s specifications. We don’t use hardware-store products on flex duct.
Yes, because continuous summer runtime maximizes air loss through leaks and drives energy bills higher when every cooled CFM counts. Sealing before peak summer prevents the compounded cost of an overworked blower and uneven cooling. Schedule an estimate at (361) 326-5060 to beat the heat.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Anna and north Collin County since 2004.