We executed a large-scale plumbing infrastructure project that involved both exterior trenching and complex under-slab pipe installation. Our team utilized heavy machinery to excavate deep channels along the foundation and underneath the interior concrete floors to reach the primary drainage lines. We worked through narrow crawlspaces and earthen trenches to prepare the site for a complete sewer line modernization. We installed a new network of PVC piping, utilizing specialized metal support brackets and threaded rods to suspend lines within the overhead structure of the crawlspace. The work included the placement of vertical risers, elbows, and Y-configuration fittings to create a seamless drainage system from the interior out to the yard lines. We finished the installation by patching the interior concrete floor and securing the exterior lines to ensure long-term stability and system integrity.