New Construction Plumbing

Allison Woslager • Apr 08, 2019

New Construction Plumbing

A wrench and pipes are on a table next to a drawing

New construction plumbing involves the installation of plumbing systems in a newly built residential or commercial property. Here are some key aspects of new construction plumbing:

  1. Planning and Design: The plumbing system in a new construction project starts with careful planning and design. This includes determining the optimal placement of plumbing fixtures, such as sinks, toilets, showers, and bathtubs. It also involves considering the layout of the building, the placement of supply lines and drainpipes, and compliance with local building codes and regulations.
  2. Rough-in Plumbing: Once the building's foundation and walls are in place, the rough-in plumbing phase begins. This involves installing the main water supply lines, sewer or septic lines, and drain lines. The pipes are typically made of copper, PVC, or PEX (cross-linked polyethylene) depending on local building codes and project specifications.
  3. Ventilation System: Proper ventilation is crucial in plumbing systems to remove sewer gases and prevent blockages. New construction plumbing includes installing ventilation pipes that connect to the sewer or septic system, allowing air to circulate and maintaining proper drainage.
  4. Water Supply Lines: Water supply lines are responsible for bringing clean water into the building. These lines connect to the main water source, which could be a municipal water supply or a private well. Plumbing contractors install pipes and fittings to ensure a reliable water supply to each fixture in the building.
  5. Fixture Installation: After the rough-in plumbing is complete, fixtures such as sinks, toilets, showers, bathtubs, and faucets are installed. Plumbing professionals ensure proper connections and alignment, and they test the fixtures for leaks and functionality.
  6. Final Inspections: Once the plumbing system is installed, it undergoes a series of inspections by local authorities to ensure compliance with building codes and regulations. This typically includes pressure tests to verify the integrity of the pipes and checks for proper installation and functionality of fixtures.


It's important to note that new construction plumbing requires expertise and adherence to local codes and regulations. Our highly trained and experienced Royal Flush Plumbing experts are here to ensure a high-quality and compliant plumbing system for your new construction project.


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