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Gaps, holes, cracks, and separations at the seams of ductwork allow conditioned air to escape before it reaches the living spaces. The more heated/cooled air that is lost, the harder the furnace, air conditioner, and/or heat pump needs to work. Longer run times add up to greater strain on components, higher monthly bills, and an increased risk of malfunction or failure. Plus, comfort suffers. You might notice unusually chilly or abnormally hot rooms.

Duct Sealing Services from Relentless Cooling & Heating LLC

Most homes sacrifice 10 to 25% of conditioned air to leaky ducts. Imperfections in the duct system not only waste heated/cooled air but also draw in contaminants, such as dust, VOCs, and bacteria, spreading them throughout the house. Relentless Cooling & Heating LLC specializes in a full range of professional ductwork services, including testing and sealing. We highly recommend having us verify the performance of the ducts and make necessary improvements.

Work with an Honest and Reliable Team

Duct sealing from Relentless Cooling & Heating LLC is a non-invasive process that is completed quickly and causes no fumes, damage, or mess. The service typically delivers dramatic improvement to the comfort and cleanliness of the home. By reducing the workload of the entire HVAC system, duct sealing also contributes to greater reliability, energy efficiency, and longevity. It helps to trim monthly expenses. Call us at (830) 282-4633 to schedule ductwork testing and sealing anywhere across New Braunfels, McQueeney, Seguin, Cibolo, Schertz, and San Marcos, TX.

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Air Duct Sealing & Duct Sealing Cibolo, TX, McQueeney, TX, New Braunfels, TX, San Marcos, TX, Seguin, TX & Schertz, TX

Air Duct Sealing Cibolo, TX & Duct Sealing McQueeney, TX

Air Duct SealingDuct Sealing ∴ Schertz, TX ∴ Seguin, TX ∴ New Braunfels, TX

Special Offer

20% Off

Military & First Responders

Exclusions apply. Call (830) 282-4633 for details. While supplies last.

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Special Offer

Free Service Call

With Paid Repair

Exclusions apply. Call (830) 282-4633 for details. While supplies last.

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Rated 5/5 on Google!

Thank you for replacing my ac and all the work you did to fix my ductwork. Cruz is very reliable, friendly, and knowledgeable. And affordable.

Ana A.

Very professional and honest, extremely knowledgeable gives great information about what’s going on. Thank you for the help Relentless cooling and heating.

Nina B.

Called the company in the morning after realizing the AC had gone out and by 11:30 that morning AC was working again. Very impressed, so we will have them come back for routine maintenance.

Natalia O.

We were referred by a friend to call Relentless and thank goodness for them! They were honest and upfront and even let us know our system was probably still under warranty, which it was.

Nicole D.

Best in the game. Top of the line work and for a respectable price. Highly recommend them for all of your HVAC needs.

Erik S.

These guys have a great attitude and awesome work ethic. They’ll go above and beyond if they have to and when needed! They tackle projects head on and the end result is always quality work!

Chris S.

Man I cannot thank Danny enough!!! He came and fixed the A/C real quick! It has been out for months. Not to mention how quickly he came out to service us.

Saul C.

They were very responsive and communicated with me at all points, very reasonable and fair rates. I have used them for several of our rental properties and do awesome work as well as clean up after job is complete.

John Z.

Shout out to Relentless Cooling and Heating!! Their affordability and timelines is outstanding! I highly recommend them for all of your AC needs!

Brandi M.

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