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 Heath
We seal ducts in Heath the same way we’d seal our own: test every joint, document every leak, and put the price in writing before the mastic comes out. If you’re in Heath Golf & Yacht Club, along FM 740, or anywhere between the lake and the tollway, our crew runs out of the Dallas-Fort Worth office and keeps scheduled arrival windows inside 90 minutes for Heath calls. We’ve been working in this market long enough to know that a Heath home with three HVAC zones isn’t a quick tape-and-go job. Call (361) 326-5060 to book a free estimate. We’ll show up uniformed, background-checked, and ready to explain what your ductwork actually needs.
Why Hollis Air Duct Cleaning Is Heath’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning has built its reputation in Heath on one thing: doing what we said we’d do. We’re part of the Garrison Partners family, and we’ve been at this since 2004. That track record matters in a market where homeowners have watched too many contractors quote low, show up late, and leave the attic a mess.
Our technicians work under The Garrison Standard, which means arriving inside the quoted window, pricing in writing before any work starts, and leaving the site clean. Every duct sealing job in Heath carries our 365-Day Done Right Promise. If the seal fails within a year, we come back and make it right at no charge, including a free second visit. No negotiation, no runaround.
Phones are answered by a live person 24 hours a day, 7 days a week. When you call (361) 326-5060, you talk to a human who can schedule your Heath appointment, not a voicemail loop that sends you to a callback queue.
We know the local housing stock. Heath’s large custom builds from the 2000s forward often run two to four separate HVAC zones with long trunk lines through attic space that sees serious temperature swing. Our crew doesn’t guess at leaks. We pressure-test, camera-inspect, and seal by the book.
HVAC Duct Sealing in Heath
HVAC Duct Sealing in Heath is the process of finding and permanently closing leaks in your forced-air duct system, using mastic sealant and reinforced mesh at joints, plenum connections, and register boots. Because Heath homes tend to be large custom builds with two to four discrete HVAC zones and long trunk runs, duct sealing here is rarely a single-zone job. Every system (and its own air handler) has to be leak-tested and sealed separately, and a homeowner who seals only the zone that “feels” drafty usually leaves the other systems leaking. In Heath’s market, a typical whole-home duct sealing job runs $1,200 – $2,800 depending on zone count and accessibility, with single-zone repairs starting around $400 – $750.
Multi-Zone Pressure Testing
We test each zone independently with a duct blaster or calibrated fan to measure leakage in CFM25. A Heath home with three systems might show 15% leakage on the main floor, 22% upstairs, and nearly 30% on the bonus-room zone. We record every number before we touch a joint.
Mastic vs. Tape in Humid Attics
Foil tape dries and separates fast in Heath’s attic conditions, especially after a North Texas freeze-to-humid-summer cycle. We use water-based duct mastic rated for the temperature swing your attic sees, applied over fiberglass mesh for structural hold. It stays flexible and stays sealed.
Duct Repair in Heath
Duct Repair in Heath addresses physical damage to your ductwork: crushed flex runs, disconnected collars, rusted metal seams, or insulation that’s fallen away and left bare duct sweating in the attic. Lake humidity off Ray Hubbard makes these problems worse than in drier inland suburbs. Condensate forms on under-insulated supply ducts, saturating the surrounding jacket, and once that insulation compresses or falls, the metal underneath corrodes. Duct repair in Heath typically runs $350 – $900 for section replacement or reconnection, with full trunk-line rebuilds on large custom homes reaching $1,500 – $3,200.
Condensate Damage Near the Lake
Homes in Heath Golf & Yacht Club and along the shoreline see more duct sweating than properties even five miles inland. Lake breezes push humidity into attic spaces that inland homes don’t experience. We replace water-damaged flex duct with insulated R-8 product and verify the vapor barrier is intact.
Rebalancing After Repair
A repaired duct system without rebalanced dampers starves some rooms and over-pressurizes others. We measure static pressure and register flow after every repair, adjusting zone dampers so each room gets its designed CFM. Your system runs less, lasts longer, and actually cools evenly.
Trusted Brands We Service in Heath
Our Heath crews carry professional-grade equipment from Nikro negative-air machines and Rotobrush rotary brush systems, plus filtration and sealing products from Honeywell, Aprilaire, and Abatement Technologies. We stock mastic, mesh, insulated flex, and register boots sized for the larger ductwork common in Heath custom homes, not the smaller-gauge materials meant for tract housing. That means faster turnaround on repair days and no waiting on parts while your attic stays open. If your system uses Honeywell zone panels or Aprilaire media filters, we service those in place and can recommend compatible upgrades when we seal.
Common Duct Sealing Problems We See in Heath Homes
- Multi-zone homes with only one zone sealed. A Heath homeowner feels a drafty upstairs and pays to seal that air handler, while the downstairs and bonus-room zones keep bleeding 20% or more of conditioned air into the attic. We test and seal every zone, or we tell you exactly which ones are tight enough to leave alone.
- Foil tape joints dried out after freeze-humidity cycles. North Texas winters drop into the 20s, summers hit triple digits with lake humidity. That expansion and contraction cracks foil tape at plenum connections within three to five years. We remove the old tape entirely and seal with mastic that flexes without failing.
- Lake-humidity condensate wetting duct insulation before sealant application. We see this in shoreline neighborhoods where attic ventilation pulls humid air across cool supply ducts. If we seal over damp insulation, the mastic adheres to the jacket, not the metal, and peels by next summer. We dry or replace wet insulation first.
- Long trunk runs with no support, sagging flex duct. Heath’s larger homes often have 30-foot flex runs between the trunk and distant registers. Unsupported flex kinks, crushes, and tears at the collar. We add proper strapping, repair the collar, and seal the connection so air actually reaches the register.
Pricing for Duct Sealing in Heath, TX
Duct sealing in Heath runs $400 – $750 for a single-zone repair, $1,200 – $2,200 for a two-zone home, and $2,000 – $2,800 for three- to four-zone custom builds with extensive attic ductwork. Full duct repair with section replacement adds $350 – $900 per damaged run, with major trunk rebuilds on large homes up to $3,200. What moves the number: zone count, attic accessibility, whether we need to replace wet or fallen insulation before sealing, and the condition of existing joints (tape-only vs. previously mastic-sealed). We put the full price in writing before any work starts. One flat price per system. No per-vent pricing, no add-ons at the door. Call (361) 326-5060 for a free estimate. We’ll inspect, test, and quote on the spot.
We Also Serve Cities Near Heath
Our Duct Sealing in Heath crew also runs scheduled appointments to Houston, San Antonio, Dallas, and Fort Worth from the Dallas-Fort Worth office. Same written pricing, same 365-Day Done Right Promise, same background-checked technicians at every stop.
Serving Heath, TX - Our Local Coverage Area
We’re based in the Heath 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 Heath
Yes, we test and seal every system in one visit if you want the full job done. We price each zone separately in writing, and you choose which ones to proceed with. Most Heath homeowners with multiple zones seal them all once they see the leakage numbers, because leaving one zone leaking undercuts the efficiency gains of sealing the others. Call (361) 326-5060 to schedule multi-zone testing.
Heath’s position on the eastern shore of Lake Ray Hubbard means higher sustained humidity in attic spaces, especially in homes near the water. That humidity condenses on cool duct surfaces, accelerates tape failure, and promotes mold in leaky duct systems that draw attic air. Rockwall and Forney, slightly inland and drier, see these problems less severely and less often. We factor lake exposure into our material choices and our inspection checklist for Heath jobs.
Nearly always, yes. We access ductwork through attic openings, crawl spaces, and register boots. In Heath’s custom homes, most trunk lines and flex runs are fully accessible above the insulation layer. We only discuss wall or ceiling access if camera inspection shows a leak inside a finished cavity, and we’d quote that separately in writing before cutting anything. Call (361) 326-5060 to discuss your home’s layout.
We document every job with before-and-after pressure-test numbers and photo or video from our duct cameras. You’ll see the leakage rate in CFM25 drop, and you’ll see the sealed joints on screen. We leave you a written report with the numbers, the photos, and what we sealed. In a multi-system Heath home, that documentation matters. You paid for three zones sealed, and our report proves all three were tested and treated.
We seal ducts in any Heath home with forced-air heating or cooling, regardless of age. Older homes may have metal duct with original snap-lock seams, or early flex duct that’s brittle. We assess condition first and quote repair or replacement honestly. The 365-Day Done Right Promise covers our sealing work on every home, old or new. Call (361) 326-5060 for a free inspection.
Ready to stop paying to cool your attic? Call (361) 326-5060 to book your free duct sealing estimate in Heath. We’ll arrive in the window we promised, test every zone, put the price in writing, and leave you with sealed ducts, balanced airflow, and documentation you can keep. That’s The Garrison Standard. That’s how Hollis Air Duct Cleaning works.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Heath and the Dallas-Fort Worth area since 2004.