Underground Duct Lining Solutions

If you’re experiencing problems with your underground air duct system, Trenchless Innovations can help with our underground air duct repair services! Whether we’re restoring your underground ducts to like-new condition using our patented Duct Armor HVAC liner or our trenchless casting method to restore the structural integrity of your ducts before lining them, we have all the tools to get your underground ductwork back to perfect shape.

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Duct Armor HVAC Liner for Air Duct Repair

Trenchless Innovations is proud to use Duct Armor, a proprietary water-based latex material, in our duct lining process. Duct Armor contains zinc to prevent the growth of mold and other bacteria and is safe for all occupants as it contains no harmful chemicals. In fact, you do not have to leave your home during application, and you can turn your system back on as soon as we finish the lining process!

Duct Armor is completely rust resistant, and because it is made up of 50% bonding agent, it provides excellent adherence to your existing ducts and onto itself. It will not be damaged by water, however, water problems in your ducts should be corrected before lining your ducts.

Click here to learn more about common drainage issues and solutions.

Our underground air duct lining technology eliminates costly repair bills by restoring your deteriorated underground ductwork without the need for digging and it provides many long-lasting benefits:

  • Lining your ducts completely restores your old, deteriorated underground ducts to a better-than-new condition

  • Our process is quick and non-invasive and it eliminates the restoration work commonly found after complete system replacement using traditional air duct repair methods

  • Lining your ducts is very cost efficient as compared to the costly alternative of replacing your underground system or moving it overhead
  • Your HVAC system will operate more efficiently because our process improves airflow and eliminates common irritants, allowing your system to run as efficiently as possible

  • Lining your ducts solves problems commonly found in underground ductwork such as dirt, sand and other debris, harmful radon gases or transite piping and therefore eliminates the health risks these problems often pose to occupants.
  • Experience increased home comfort with underground duct lining so you can breathe easier knowing your indoor air is clean, healthy and comfortable

  • Our Duct Armor liner is water-based, non-toxic and environmentally-safe so you never have to worry about the safety of our product

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Trenchless Casting

It has been our experience that in some cases, the condition of underground air ducts are so severely deteriorated that there is no longer any structure left to them.

In these cases, Trenchless Casting serves as a way to restore structural integrity back into the ducts so they can then be spray lined with Duct Armor.

Your air duct repair could be easy and effective with our duct lining solutions.

Trenchless Casting is most commonly used to restore the structural integrity of galvanized and cardboard (sonotube) ducts that have deteriorated due to rust or elements over time. Although not used with every restoration project, it provides additional strength to our lining process for pipes in pretty serious disrepair.

What are the benefits of Trenchless Casting? There are several:

  • Our process gives you brand new pipe within your old pipe, making them suitable for duct lining.

  • Trenchless Innovations provides a 15 year warranty on the process, but we know it will last much longer!
  • Used in conjunction with duct lining, the trenchless casting provides an agent for our Duct Armor product to better bond to. A great combination that results in new, strong and long-lasting pipes for years to come – and no worries for you!

Call Us to Experience the Benefits For Yourself

We are here for questions, quotes and appointments at 708-758-5070.