We are sealing the underground duct work with our duct lining material, the duct work was originally cardboard we previously applied out trenchless cast mortar to all underground duct work to give the weak cardboard a strong structure and now we are able to seal the system with our duct lining material leaving a clean air flow for the customer.
We are applying our Trenchless Cast mortar to all of the deteriorated cardboard air ducts. Our Trenchless Cast gives the deteriorated pipe a strong structure. On our next visit, we will seal all of the underground air ducts with our rubberized Duct Armor material.