Seal the Leak. Cut the Bill.

Aeroseal duct sealing stops wasted air in your Seguin home, giving you guaranteed comfort and lower energy costs.

Are You Losing 40% of Your AC?

In most Bexar County homes, up to 40% of the cold or warm air never reaches your rooms. It leaks out into your attic, walls, or crawlspace through tiny cracks. That means your AC runs 40% harder than it should—wasting huge amounts of money and leaving you with hot and cold spots.

Aeroseal is the patented, guaranteed technology that fixes this problem from the inside. It finds and seals every single leak, making your ducts like new.

Diagram showing air escaping a leaky duct in a San Antonio home attic, representing 40 percent energy loss.

The Guaranteed Benefits of Sealing

Aeroseal isn’t just a service—it’s an investment that pays for itself in just a few years through these major improvements.

Money saving symbol over thermostat, showing up to 30% reduction in San Antonio HVAC costs after Aeroseal.

Massive Energy Savings

Expect to see up to 30% savings on your heating and cooling bills, starting immediately.

Family relaxing in a perfectly temperate room, representing consistent home comfort without hot or cold spots.

Total Home Comfort

Say goodbye to frustrating hot and cold spots. Every room gets the exact air it needs.

Duct system with less dust and cleaner internal air, showing better indoor air quality in Texas homes.

Cleaner Air, Less Dust

Sealing prevents dust, humidity, and pollutants from being sucked into your air supply.

The Science Behind Aeroseal

Don’t just take our word for it. Watch this short video explaining how this patented, hospital-grade technology works to seal your ductwork permanently.

Hospital-Grade Materials

The sealant is non-toxic, water-based, and used in hospitals and schools—100% safe for your family and pets.

Computerized Precision

This isn't duct tape. The system precisely measures and seals leaks up to 5/8 of an inch with guaranteed, documented results.

20-Year Guaranteed Seal

The sealing polymer is a permanent solution, backed by a strong warranty to keep your ducts performing for decades.

How the Aeroseal Magic Works

This advanced process is clean, non-invasive, and completed in just a few hours. We never cut into your walls or ceilings.

01

Measure The Leak

We block all vents, seal the system, and run a computerized test to show you exactly how much air you are losing.

02

Seal The Cracks

We inject a safe, fog-like polymer that finds and permanently seals all the leaks from the inside out.

03

Verify The Results

We run a final computerized test that generates a certificate proving the leaks are gone—guaranteed.

The Difference is on the Screen

We don’t just guess; we give you a printed certificate showing your “Before” and “After” air leakage numbers. This is the Two Brothers A/C Guarantee.

Before

420 CFM

Air Leakage (Typical Seguin Home)

Visual representation of high air loss before Aeroseal sealing service.

AFTER

12 CFM

Air Leakage (Two Brothers A/C Sealed & Certified)

Visual representation of dramatically reduced air loss after guaranteed Aeroseal sealing service.

Stop Wasting Time on Duct Tape

The U.S. Environmental Protection Agency (EPA) and Energy Star both warn that common silver duct tape fails quickly. DIY solutions like mastic or metal tape only seal the small, visible leaks.

❌ DIY Problems

Can't reach hidden leaks in walls. Only seals visible joints. Tape fails over time, especially in hot Texas attics.

✅ Aeroseal Solution

Seals hidden leaks up to 5/8" inches. Works from the inside. Guaranteed to last for decades.

Frequently Asked Questions About Duct Sealing Services in Seguin, TX

How much does it cost to seal ductwork?

The total cost depends heavily on the size of your home and the amount of leakage we find during the initial test. However, sealing your ducts is an investment that typically pays for itself through energy savings in just a few years. We provide a free comfort analysis and a firm quote before any work begins—no surprises!

Absolutely, especially in hot climates like San Antonio. Duct sealing provides an excellent return on investment (ROI). Not only do you save 20-30% on energy bills, but you also fix hot/cold spots, reduce dust, and prolong the life of your entire AC unit by making it run less often.

 

The “2-foot rule” is a DIY guideline suggesting you should seal all duct joints within 2 feet of the furnace or air handler. While sealing these accessible joints helps, they only account for a fraction of your total air loss. Aeroseal seals every crack and hidden leak, which a person physically sealing joints cannot do.

 

You can use foil tape or mastic on visible, easily accessible ducts (like in an unfinished basement or attic). However, over 90% of duct leaks are hidden behind walls, under insulation, or in the subfloor. Aeroseal is the only professional method that seals these hidden leaks from the inside, giving you a guaranteed, permanent fix.

Have more questions? Don’t hesitate to contact Two Brothers A/C today!

 

Seguin's Certified Aeroseal Experts

As a certified Aeroseal partner, Two Brothers A/C is the trusted team, based right here in Seguin, that services all of Bexar County to give you this technology and the certified guarantee that comes with it. Don’t settle for taping leaks—get the patented, permanent fix.

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