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Duct Sealing · San Antonio, TX

Duct Sealing in San Antonio, Texas

Stop paying to cool your attic. We find and seal the leaks that waste your air. Green Air Duct Club has served San Antonio and Bexar County since 2009 — family owned, licensed and insured, and rated 4.9 stars from 300+ Google reviews.

  • Free system inspection with photos
  • Honest written quote before we start
  • Pay only after you're happy
  • Open 24 hours, 7 days a week
Duct Sealing in San Antonio, Texas — Green Air Duct Club
Duct Sealing — Green Air Duct Club · Call (210) 790-3600

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★★★★★ 4.9 / 5 300+ Google Reviews
BBB A+Accredited Business
Licensed & InsuredFamily Owned Since 2009
Background-CheckedTechs on Every Job

About Our Duct Sealing Service

San Antonio sits where Hill Country pollen meets South Texas heat and humidity. That combination loads ductwork with allergens, feeds mold in damp sections, and makes your system push harder for the same comfort — which is exactly why local homeowners stay on a regular service rhythm.

In San Antonio we serve every neighborhood — Stone Oak, Alamo Ranch, the Medical Center area, King William, Monte Vista, Tobin Hill, the Pearl and Southtown, Terrell Heights, Denver Heights, Highland Hills, Harlandale, Woodlawn Lake, Beacon Hill, and everywhere inside Loop 410 and out to Loop 1604.

What's Included

Signs You May Need Duct Sealing

How It Works

Simple, honest, and done in one visit.

1

Free System Inspection

We inspect your duct system and show you photos of the leaks and disconnected joints we find.

2

Written Quote First

You get a clear, itemized quote. Nothing is sealed — or charged — until you approve it.

3

Professional Sealing

We seal joints, seams, and connections with mastic systems built to last in Texas attic heat.

4

Airflow Verified

We re-check airflow room by room so you can feel the difference where you actually live.

Honest Pricing for Duct Sealing

Every home is different, so we inspect first — free — show you photos of what we find, and give you one firm written quote. The price we quote is the price you pay.

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Duct Sealing FAQs

How much conditioned air do leaky ducts waste?

The U.S. Department of Energy estimates typical duct systems lose 25–30% of the air they carry through leaks and poor connections. In a San Antonio home running AC most of the year, sealing those leaks is often the fastest payback in the whole system.

How is duct sealing priced in San Antonio?

Every San Antonio home is different, so we inspect first and give you an honest written quote before any work. The inspection itself is free, with photos and zero pressure.

Will sealing help my dusty rooms?

Often, yes. Leaks on the return side pull attic and wall-cavity dust straight into your air stream. Sealing those gaps in your San Antonio home can noticeably cut the dust that settles on furniture.

How long does duct sealing take?

Most San Antonio homes take half a day to a full day, depending on how much ductwork is accessible and how many leaks we find.

Can sealing wait until my next cleaning?

It can — and booking sealing together with your $99 duct cleaning in San Antonio is the most efficient route, since the system is already open and inspected.

Duct Sealing by City

Choose your community for local details and booking:

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Our Other Services

Air Duct Cleaning

Complete duct cleaning for one flat price per system — unlimited vents included.

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Dryer Vent Cleaning

Full lint removal from the entire vent line — safer dryer, faster loads, lower bills.

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Duct Replacement

Crushed, torn, or moldy ductwork can't be cleaned back to life. We replace it right.

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Mold Remediation

Mold in the ductwork spreads spores through every room. We remove it safely at the source.

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UV Light Installation

A UV light inside your HVAC system works around the clock against mold, bacteria, and odors.

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Air Quality Testing

Stop guessing about the air in your home. We measure it, explain it, and show you the numbers.

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Odor Removal

Cooking, pets, smoke, mustiness — if the smell lives in your ducts, we get it out at the source.

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Breathe Cleaner Air This Week

Same-day appointments are available across San Antonio & Bexar County. Free inspection, honest pricing, pay only when you're happy.

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