
Air Duct Sealing Services in San Marcos, TX
Duct Sealing Without Cutting Corners
According to Energy Star, a typical home loses as much as 20%-30% of conditioned air due to leaks, holes and poorly connected ducts. That's a lot of hard-earned money going out the window, literally! At Reliable Air, we work hard to ensure every last bit of conditioned air stays where it belongs. And we do that by not cutting corners: using the absolute best sealant products, having the best-trained technicians and performing the most thorough job possible. Call us today for your duct sealing and get:
- Reliable people—Since we constantly train our duct sealers, you can be 100% confident that your job will be done right the first time.
- Reliable scheduling— With same-day service and 2-hour scheduling windows, you'll get your ducts sealed at a time that's convenient for you.
- Reliable relationships—Many of our employees stay for 10+ years so you'll always hear a familiar voice on the phone or see a familiar face at your door.
Cost of duct sealing in San Marcos, TX
Factors that affect the cost of duct sealing:
- Amount of ductwork in the home: Larger homes, homes with multiple HVAC systems, and other factors tend to increase the amount of ductwork that needs to be assessed for leaks and damage. Paying a little extra for a thorough job matters here, because the alternative is a company that cuts corners and leaves your ducts just as leaky as they found them.
- The accessibility of the ducts: Sealing exposed ductwork found in attics or basements tends to cost less than ductwork that's tucked away behind walls, simply because it's easier to reach.
- Combining a sealant with insulation: If your home's ductwork is exposed (i.e. found in a basement or attic), its ability to retain conditioned air could be significantly improved by surrounding it with insulation (foam or plywood, primarily). This isn't required and costs a bit extra, but gives your ducts even greater sealed protection.
Signs you need duct sealing
You may want to consider having your ducts assessed for leaks if...
- Your energy bills are higher than normal
- Rooms feel stuffy or humid
- Some parts of your home feel hotter/colder than other parts
Want a FREE quote on the cost to seal your ducts?
We can do a preliminary inspection and give you a quote on the cost to seal your ducts.
Providing duct sealing to San Marcos and these areas
Providing duct sealing to San Marcos and these areas
- Canyon Lake
- Buda
- Cibolo
- Fischer
- Garden Ridge
- Luling
- Lockhart
- Kyle
- Manchaca
- New Braunfels
- Schertz
- Seguin
- Universal City
- Wimberley
- Dripping Springs
How we work in 5 easy steps
Schedule your duct sealing
Schedule an appointment online or call us at 512–396–8183. We offer 2-hour scheduling windows to ensure the least amount of disruption to each customer's day.
Notify you before we arrive
One of our expert duct sealers will call you 30 minutes prior to their arrival. That way, you know exactly who'll be arriving at your door. And if you're out and about, you can get home in time for their arrival.
Give you a price
Once your duct sealer arrives, they’ll perform a preliminary inspection of your ductwork and give you an upfront quote before any work begins. No guessing. No surprises.
Seal your ducts
After you give us the green light, we'll get to work sealing your ducts. Our team of duct sealers follows the highest industry standards on every job. Most sealant jobs take around 4 hours depending on the home and the state of the ducts.
Make sure you're happy
We don't just dine and dash. After the work, we call to get your feedback so we can ensure you're 100% satisfied.

See what Texas homeowners have to say about Reliable Air
"They are highly recommended!"
"Reliable Air has been very accommodating to our church's schedule needs. They have also given us some business rewards for doing a maintenance contract with them. Super friendly too!
They are highly recommended!"
-Carol J.
"Techs are always respectful"
"They’re just like the name: Reliable. Helps me keep my older unit working. Their response is always helpful and when they come, the tech is always respectful of having to invade my workspace in order to access the unit. Explain the problem clearly as well as the cost. Willing to come back if needed to make sure the problem is fixed. Thanks."
-Ann F.
Our 100% satisfaction guarantee
We do whatever it takes to make you happy (like, 3-day weekend happy). So, if you have any issues with our duct sealing service, we'll make it right—even if that means giving you your money back. We also always back up our duct sealings with a 1-year labor warranty.